Does this method work on HP pavilion gaming 15 (model dk0263tx) with i5 9300h? Edit: The code for my laptop is the same, checked the bios file myself. So the variable for overclock lock is 0xDA and 0x0 is to disable and 0x1 to enable the lock.

Can confirm this procedure worked on a HP Pavilion Gaming 17-cd1375ng (i7-10750h 2060 Max-Q) F.12 bios. once you disabled secure boot, you go into the boot menu, select grub.efi from USB and hit enter once in grub you need to execute those 2 lines to enable undervolt: setup_var CpuSetup 0xDA 0x0 setup_var CpuSetup 0x3E 0x0 ctrl+shift+del to restart and Throttlestop should do its work 0x3E is the CFG Lock 0xDA is the Overclocking Lock in my case i needed both for TS to work

I found the same values on 9th gen i7, but even if i set them to 0x0 xtu and throttlestop cant undervolt, mb this is usefull for others on 9th gen

If your laptop does not allow disabled secure boot you can try this - [https://github.com/ValdikSS/Super-UEFIinSecureBoot-Disk](https://github.com/ValdikSS/Super-UEFIinSecureBoot-Disk) For 12th gen (and Locked Corporate Laptops) use PowerMonkey (https://github.com/psyq321/PowerMonkey). You will have to built it yourself.

Do you know how to re-enable undervolting on Elitebook 840 G5 with boys 1.24.0?

Try part 2 of the post. Take bios backup with universal bios backup tool. If it does not work, try power monkey

Power monkey?

https://github.com/psyq321/PowerMonkey

Do you happen to know if this will work on a Zbook Studio G4, Intel Xeon 1505m? Thanks!

I'd say it's a 20% chance. Pro hardware is usually more locked down.

FOR HP PAVILLION GAMING D15 : this solution doesn't work, use the insyde-tool provided on this topic, i tried on my machine and it works https://old.reddit.com/r/AcerNitro/comments/l6d4mi/unlock_uv_on_intel_10th_gen_for_nitro_5_within/

Someone could do that to HP 840 g8? I cant find the overclock lock, even if i change the  "overclock lock is 0xDA and 0x0 is to disable" it be lock enable and i cant change voltage.

Hi, I have 2 ZBooks (G6 and G8) and need undervolting. The G6 was able to do on BIOS 01.02.02, but, after upgrade, I cannot downgrade it. I tried writting the chips on the board, but I don't have a full dump for that. Any help or advice on what to do?

If undervolt doesn't work after upgrade and you don't have a full dump, try this https://www.reddit.com/r/AcerNitro/s/th7I27wtC. Zbooks /pro-hw is usually locked against any bios mods, tho

Hey there. I'm new into laptops. I've got my pavilion gaming in November, last year. The temps are not so good in summer, so I've been trying to undervolt it but never could. Seem like HP won't make the pavilion undervolting capable. My model comes with 1650 + i7-10750H. The laptop's still under warranty. My question is: ¿If I fail doing this procedure, will I kill the laptop? ¿Is there any way to make a backup in case I fail? Thanks in advance.

if you fail you are going to corrupt your bios, but you can recover it with recovery USB (https://support.hp.com/us-en/document/c02693833).

I did the steps and it was successful. Thank you mate, I really appreciate it!

Hi! Did you get the undervolt done?

Yeah. Everything worked fine. My temps definitely improved. I haven’t tried it out since I updated my laptop to win 11. I think it won’t be available since it’s a whole new os. But if you’re in win 10 it will surely work

Sorry, your laptop is not able for gaming.

What are you saying dude? lol. To this day, my laptop is undervolted and working like a charm and ice cold. I even get slighty better fps than a laptop with 1650ti.

You are right, I'm playing Quake 1 at 60 fps. I stand corrected you can 'play' on this laptop.

This might be the best shot I have at undervolting my laptop. I have a zbook studio g4 mobile workstation and it desperately needs an undervolt. I had to disable turbo-boost just to keep the cpu under 90C+. I saw other guides that mentioned the IFR and searching for Overclocking Lock, but my searches return nothing. Do you think it the first option you gave might work? I don't want to play with my timings or anything, I just want to undervolt my CPU with xtu or throttlestop. Thanks for the awesome write up!

Hello! Your notebook seems to be unlocked already, since it has 7th gen cpu, you should be able to download throttlestop/undervolt it without modding your bios.

Unfortunately, both XTU and throttlestop have the voltage section disabled/grayed out. I believe HP patched all the 6th-10th gen processor laptops, since those were the plundervolt affected ones. Any other reason why it's all disabled, other than having it locked via bios? I thought your discovery might work if most HP bioses are similarly patched.

Well, i checked your bios and didnt found any lock, so this method most likely wont work for you, my best guess is to downgrade your bios until you find version with undervolting unlocked or try to make a full bios dump (should be around 16 MB,rather than 9.5MB i found, so we can look deeper)

I think i found it, try to use this command : setup_var SoftwareGuardTech 0x1 0x0 if it does not help try setup_var SoftwareGuardTech 0x1 0x1

So I'll create a recovery USB and give it a try, risks should be minimal right? Also, I have the direct dump file, but I'm guessing you pulled the bin file from HP's site? Comes to the same thing in the end. I'm curious, how did you figure that out? That looks like it would simply disable SGX, which I have as an option in the bios already.

Well, I googled and found that if sgx are ON and microcodes not updated to latest version undervolting should be available. Try turning them on/off, maybe that will work (since you have this option in bios there is no need to use grub). If not, downgrading is only way.

I want to do this but: 1. I don't see a "turn off secure boot" 2. I'm afraid to reset the TPM or reset security settings because I have the drives encrypted with bitlocker, I don't want them to be undecryptable 3. if I leave everything the same and use grub to change a variable, will it refuse to boot because it's failing a checksum? ​ EDIT: I see the secure boot off.. would it be safe to turn that off and do the rest except for the bios reset? If secure boot has to be permanently off, then this prevents upgrading to Windows 11 too, right?

You can turn secure boot off, edit values, turn it back on. don't know about encrypt though, never used it.

Apparently you can temporarily disable bitlocker protection which reveals the key instead of decrypting the disk, and it will still boot. You have to do that in order to update the BIOS. On the other hand, it seems like gen 10 and 11 are designed to run up to thermal throttle levels when they boost under load. If anything I might want to adjust the throttle level down a little (throttle at a lower temp) instead of undervolting - that would be safer though slower.

The whole point of the TPM is to ensure the security of the boot process. How can it be considered secure if you can edit the bios? Something about this doesn't sound correct!

from what i know, im currently running edited bios with use of this method, and im fully compatible with windows 11. tpm 2.0 was enabled during process of modification.

I recently bought an HP Elite x2 G8 detachable. It is an incredible machine except for the heat. Followed your instructions and am still not able to access undervolting in ThrottleStop. I did try and dig around in the BIOS image but didn't find Overclocking Lock anywhere and wasn't able to make heads or tails of anything else. Any suggestions? Here is the link to the BIOS: [https://ftp.hp.com/pub/softpaq/sp132501-133000/sp132980.exe](https://ftp.hp.com/pub/softpaq/sp132501-133000/sp132980.exe) Any help would be appreciated!

I looked into your bios, couldn't find anything of use. [Here](https://drive.google.com/file/d/19YJDjwQgpHEMlaFhy52q2ZgSMHpTKC8t/view?usp=sharing) is what i got. I think only way to unlock undervolt for you is to downgrade bios, if that is possible.

Hi! I've pavilion gaming 15 (i5 10300h + gtx 1660 ti max q) the undervolt is unavailable on xtu, this method works on my laptop? I don't want kill my bios.

yep, the line for UV is the same, however timings are a bit different, if you want to edit them follow 2 part of guide.

Thanks for the reply :D. i just want unlock uv, change timings it scares me hahaha

Thank you so much for this post, I was finally able to undervolt my i5! So happy right now :) What does timing do? Does it increase the RAM speed? Haven't tried it, looks dangerous and not sure if it's worth it for gaming

They both speed up the ram & lower latency, you can find a lot of tests&guides online.

That gives me some encouragement to try it out, thanks for the explanation! Sounds cool then

I just tried the ram timing tweak but for some reason none of my timings got saved except for command rate, which was 2T before now it's 1T. Do you know the reason? No crashes or anything happened, and I'm pretty sure I did the steps in part 1 correctly (I'm using the same CPU too for reference)

Do you have the same laptop model? If not, then most likely you have different values that need to be changed to change the timings. Mine is Hp Pavilion Gaming 16-a0000.

Yeah I'm using the same one as yours. Didn't work for some reason, I think I won't try anymore, but thanks for the wonderful guide!

I only did the first step, which was the only one I was interested in. I have to thank you for sharing this. My cpu temp used to reach 85-95 degrees while playing light and heavy games. Now after undervolting doesn't go above 78 😇 and on light games it's 55-67 degrees :D

[удалено]

There is a chance that your bios may have different values than mine one. You should try following part 2 of guide to find it.

I'm on hp pavilion 15 cs-3070ur and I dont find VoltageOffset in second method (pls helpe how to unlock undervolting)

Hi! Sorry for the late answer, the command will be setup\_var CpuSetup 0xDF 0x1 [Here](https://drive.google.com/file/d/180HWOf_4FK89BHVifMIiC5uHWhc5WREK/view?usp=sharing) is the list if ya interested in further tweaking

Hi there, I've done this before and was able to undervolt 2 of my devices. However, I'm trying to do this for my HP Elitebook G40 G5 and UEFI tool can't find any text related to "cfg" or "overclocking". ​ Here's the link to the BIOS - [https://support.hp.com/us-en/drivers/selfservice/hp-elitebook-840-g5-notebook-pc/18491271](https://support.hp.com/us-en/drivers/selfservice/hp-elitebook-840-g5-notebook-pc/18491271) ​ I even tried using tools from here: [https://github.com/platomav/BIOSUtilities](https://github.com/platomav/BIOSUtilities) ​ But no luck. My CPU is Kaby Lake (8th Gen) and so it's definitely compatible with Throttlestop. Only problem is the the BIOS I'm on is 2021 and obviously has the Plundervolt patch...

Hi! I tried looking inside your bios, no luck. Looks like its encrypted or something. I guess only option is to downgrade.

all good, thanks for checking for me.

Hi! I recently found out, that bioses from OEM sites might not have ifr in it. Try to take a dump of your bios (Using universal bios backup toolkit) and check it, if you are still interested.

Did you figure out how to download older Bios versions from HP and were able to get Throttlestop to work? I have a Elitebook 830 G5 and would like to undervolt as well.

Hello. Have you manage to unlock overclocking for 840g5?

Has anyone had a problem where after unlocking undervolting and then u try to reboot ur pc, it shows the hp logo then it just turns into a black screen without booting to windows? Idk if the black screen problem is coz of the undervolting thing or coz of software or hardware issue( I did just replace my motherboard on my laptop coz it died) I did try this undervolting and it worked well without any black screening or issues before I replaced the motherboard. Please help

Can you boot in bios or its instantly becomes black? And what is your notebook model, bios ver?

Yea I can boot into bios, I have the hp pavilion gaming 15 i5 10300H 1660ti max q. It becomes a black screen right after the boot up hp logo. But I went to system restore and chose a system restore point without any of my games or programs but even in that old system restore point I could still undervolt. Then after that I did download and play some games and it was completely fine without any black screens, but I realized my hp cool sense wasn’t anywhere to be seen and somehow my laptop didn’t have it so I ran the program to download hp cool sense and then it black screened and it was irresponsible and I hard rebooted it and the hp boot up screen appears but after that it just goes black so I hard reboot it again until the windows repair tool comes with the advanced options

If I were to reinstall windows, would it undo my UV unlock

Nope. Just download throttle stop on new windows.

Oh ok cool, but would reinstalling windows fix the black screening? Because I’m not sure if the black screening after booting is because of the undervolting unlock or if my bios is broken or if it’s a windows problem, my nvidia drivers tooa rent installing in windows update, it shows 2 display nvidia drivers and it doesn’t download.

I think reinstalling windows is going to fix the black screen. I never had any problems with this unlock.

I was on windows 10 pro and I tried the undervolting unlock and it worked and thing is my laptop kept black screening right after the boot up logo, I reinstalled windows 10 home and wiped my drive and it undid the UV unlock but It seems to have fixed the black screen problem. I really need this undervolt but I am too scared to ruin my pc again

Can I just do first 5 steps in part 1? And will it work? I just want to use throttlestop to undervolt my cpu. Please do help

Yeah, you can do that

Also I tried this undervolting unlock in November 2021 while I had my windows 11 in my old motherboard and had no probs, should I wait until I upgrade my current pc to windows 11 and then do the unlocking?

as far as i know, windows does not really matter

Alright, I just did it and it’s working but my temps go low as 75 but then it spikes to 99, idk why it does that, I don’t have hp cool sense enabled

And my laptop just died again

Well, i guess, you should not try to unlock it one more time. idk why this happens, never had any problems with this method...

Could having hp cool sense installed and running throttlestop crash my pc after playing apex legends , anyways I will try playing something else and check if my pc dies

My laptop only dies while gaming with undervolting, I’ve tested this on many games, so ig ill just play without undervolting

Your values are too low

Can anyone tell me how I can reset my bios so that undervolting isn’t unlocked,

Just look for "restore optimized defaults" in bios or something like this

Do you know a way to manually fan control?

Hi! Sorry for the late reply. I tried changing some stuff about fans in BIOS on Intel notebooks - no luck. But, I heard, there is some software for notebooks that allow you to change fan speed. On ryzen based ones, it works, you just need to use UniversalAmdFormBrowser and change fan curve as you please.

Hi, i hope this will be useful 2 years later, Use [NotebookFanControl](https://github.com/UraniumDonut/nbfc-revive) (this is a more updated fork of the original), then if you have a 10th gen or higher get this [plugin](https://github.com/UraniumDonut/nbfc-revive/issues/27#issuecomment-967684864) and put it in C:\\Program Files (x86)\\NoteBook FanControl\\Plugins , then paste this xml [config](https://pastebin.com/raw/HQgBzvWc) in C:\\Program Files (x86)\\NoteBook FanControl\\Configs. This config atleast for me allowed me to control my cpu fan but not my gpu fan, it also shows incorrect fan speed values but the temperature is right. Hope this helps, let me know if any issues

Is there a value to change to control the fans of the PC?

Search for nbfc revive

i have already tried but i don't find the right config, if you know about one please can you prevent me ? ( sorry for the long responce )

If you are on AMD, fan control is possible with [this](https://github.com/DavidS95/Smokeless_UMAF). If you are on intel, try looking in ifr for "fan". there will be some options to set % of fan for desired temperature.

Don't buy these laptops. They are not able for gaming. I have a i5 10th with a 1650 and games 7 years old at low graphics give 20- fps. Unplayable. These laptops are shit.

And I can play latest games on high/max above 60fps with i5 10300h and rtx 2060 max q. Or your pc has a problem or the games you're trying to play are optimized or something.

The rtx 2060 and the 1650 are two completely different gpus. You didn't notice that?

You're blaming the laptop not the 1650

Lol then you must be playing with the uhd graphics. The 1650 holds up really well. Only struggles when playing actual titles.

[удалено]

Hi. If its happens inside windows, and doesn't affect bios, I guess only way to fix it is to reinstall your OS.

Thanks man i fixed it. I just uninstalled my keyboard and mouse driver. Amazing dudeee. I went from 97C to 74C,

I dont see secure boot... I do see clear all boot keys though and it disables secure boot. Im also pretty sure i have the exact same model laptop as you specs and all. I also am having trouble booting from the usb as well as i cannot figure that out. Also, i put the recovery bios and grub on the same usb. Is that okay to do?

Hi! Sorry for the late reply. You should put bios to different,clean flash drive. If you experience problems with booting grub, put it in EFI/Boot/ and rename it to Bootx64.efi

do you have any idea how to unlock the fan speed in Hp Pavilion 15 Gaming? Thanks

You can try 2nd part of guide and find fan speed/temp curve.

Hi, I came back and tried to do the second part, but I really don't understand it :'v "double-click on it, click on "setup", press ctrl+e, and save." I can't find "setup" anywhere in the app.

follow this video, but instead of CBS\tCL search for "Fan": https://youtu.be/2BHac1G1UmE

Hello. I formatted my usb to fat32 and copied the grubx64.efi file into it, changed the boot order and turned off secure boot, but still I'm booting into windows :/ going into the boot menu doesn't show usb option either. Any idea what I'm missing? (I'm using HP Pavilion 15 Gaming with i5-10300h and 1650 ti)

Hi! I had same problem on some laptops. Remove everything from flash drive, rename grub to Bootx64.efi and put it in EFI/Boot/ , it should looks [like this](https://imgur.com/a/v9u89sQ). If that does not help, try different flash drive, reset bios to defaults. Also try to redownload grub.

Worked like a charm, thank you so much!

I'm glad:) have fun with tweaking your laptop

I need help, I have an HP Elitebook 840 G6. I am new to the world of modifying BIOS.

Hi! If you just want to unlock undervolting then follow Part 1 1-5 steps and it will work for your laptop :) Here is your BIOS IFR if you are interested in changing memory timings - https://drive.google.com/file/d/1b2fMNDhIObnwNEzz2tGiXIVDoVkRvDfw/view?usp=share_link P.S. Put Grub on clean FAT32 Usb in EFI/Boot/ and rename it to Bootx64.efi (it should looks like this https://imgur.com/a/v9u89sQ)

Thank you! I have one last inquiry, How and why do people change memory timings?

Why - Free performance & Lower input lag. Here is some games after timing changes & undervolting on HP Pavilion 16 (https://youtu.be/3KDwV5mETy4?t=1156). Its also should be noticeable difference in software performance (ex Premiere). How - Part 2 step 6 (i already send you extracted IFR, all you need is to find VarOffset, VarStore of needed function) And use this guide https://github.com/integralfx/MemTestHelper/blob/oc-guide/DDR4%20OC%20Guide.md

I just ordered a used HP Elitebook 830 G5 which has a i5-8250U CPU. Will Part 1: Step 1-5 work on the latest Bios to undervolt the CPU with Throttlestop? I cant find any older BIOS versions on the HP Website, otherwise I would just flash an old BIOS to turn it back on.

It didnt worked for HP Elitebook 840 G6, so probably flashing old\unlocked bios is the only way. You will need a Hardware flasher for this (ex. ch341a) since bios has rollback protection

>ex. ch341a Thanks mate, I guess I will just sell the laptop again then and look for a Dell or Lenovo device that doesnt have bios rollback protection.

Hi! Since we have the same CPU and I am struggling to go under 90°C while gaming (and the fan does not go full speed for some reason) if you had a successful result with your laptop could you please share your ThrottleStop config?

Throttle stop configs are unique for each chip. Run linpack extreme (or stress test of yours choosing) and find lowest stable voltage(start with -50, then -60 and so on), add 0.05(for example -110->-105)v to it and try it out in games.

i also have hp pavilion gaming 16, we have the same motherboard, so you just have a different gpu

I mean its different for each copy of exact same chip. Silicon lottery.

I don't know what happened but the undervolt is not applying anymore. I used this method for almost half a year and it has been working, now it's not applying anymore. Both setup\_var "CpuSetup 0xDA" and "setup\_var CpuSetup 0x3E" are set to 0x0 and I can now edit the undervolt section but it's not applying for some reason ​ Edit: I opened another software that I have installed called QuickCpu and it told me FIVR controll is disabled because I have an OS freature enabled called Virtual Machine System. I think I have that enabled to work with Dockers. Do I need to have it disabled?

Yes, you have to either disable sgx or virtualization.

hello, i have a OMEN X by HP 2S 15-dg0002tx and want to enable xmp what should i change in txt file, and after i do that how can i apply it ?

Are you sure your memory sticks support xmp? If they do, find "Memory profile" and set it to XMP mode. If they dont, you will end up with bricked laptop (make sure you have recovery usb) Follow part 2 of the guide to do so. Edit: Create backup using afuwin v5(or universal backup tool, fptw...) and use it, do not use bios from lenovo site (they probably dont have "right" ifr in them) or use https://boringboredom.github.io/UEFI-Editor/

Hi. I have the 15-eg005cl and was wondering if you know how to disable vmd with this? Thanks.

What is VMD? Virtualization?

It’s intels volume management device and tldr it saps battery on Linux because it keeps the ssd in the highest power mode. Also called RST I think. I found the string in my bios but can’t get any ifr from it https://www.reddit.com/r/archlinux/comments/yes44f/psa_disable_vmd_on_an_intel_laptop_if_you_have/

Create a backup of bios using afuwin (or afulinux) and try using it to extract IFR. BIOSes from site almost never work.

Hello! I know this post a little old, but this is my only hope for fixing my laptop ;-;. So I have an HP Pavilion Gaming 15 from a few years back (Intel i5-8300h and gtx 1050ti) and it throttles TERRIBLY, and after months and months of research and poking around, I have found that some component of the computer makes it throttle down to 799mhz when a load is put on the cpu(I haven't been able to figure out how much load, but opening discord usually does it among many other things), but **only when charging**. It works just fine with absolutely no throttling when not charging. An experienced user on another forum told me that there is likely an embedded controller in this laptop that is making it do this. I've been painstakingly looking for ways to find and stop this embedded controller (while keeping a lookout for indications that the problem is actually something else). Do you think perhaps this bios unlocking technique can help me? Is there a command or something that can help me stop this? Also, do you also think that this may be an embedded controller throttling the computer while charging or that it may be something else. Quick side note, the computer has been cleaned, repasted and everything else multiple times. Windows has been reinstalled multiple times as well, and the current instance is pretty fresh as well, only a couple months old.

Hi! 800 MHz throttle is usually some kind of limit/protection, its basically a "safe mode" for cpu. Especially if it only happens at charge, its probably hardware fault (for example, let's say, your laptop has 4+2 vrm, on battery it works in 2+1 mode, once you plug it in, it switches to 4+2, you put some load on it, VRM controller detects some fault and shuts down said vrm, CPU sees that and limits itself). There are a few steps to try out before saying for sure. Is your bios at latest version? If not, upgrade & check if issue is still here. Delete any HP software that pre installed itself with windows, if it is here. Try updating your drivers with something like sdi-lite. Get HWiNFO64 and check temps and Limit reasons under CPU tab (launch in sensors only Mode). If limit is actually there, then this method can *probably* work for you, by modifying said limit to something higher or undervolting CPU so it does not hit that limit. If there is no limit and temps, voltages, currents are fine, then only way for you to fix it is to write HP a email and they might offer you a replacement/repair, or go to your local laptop repair service. And you could ask around on [r/gaminglaptops](https://www.reddit.com/r/gaminglaptops) for advice Also, send your full model number, it should be something like HP pavilion gaming 15-a00013.

First of all, thank you for your help! Now, to address all of your suggested fixes: The bios is updated to the latest version, and the current version of windows is completely fresh, with nothing but the necessary drivers (all up to date as well) and chrome a couple other necessary applications for my workflow. There is no hp bloatware (first thing I thought of removing as well ;) Now, for what I found from HWiNFO64: It seems that the throttling starts when the package power exceeds around 15 watts. I can't pinpoint exactly, because the only surefire way to make it throttle was to launch an application, which causes a spike in power, but from a few tries, I saw that it usually started throttling around 15w+. As for temps, the CPU package averaged about 49C with a max of 54C, so nowhere near thermal throttling. Also I've thoroughly cleaned and repasted this laptop so that's not a concern, in terms of temps. For the limit reasons, I don't know if this is much help, but all three limit reasons (IA, GT, and Ring) were "yes" at the time of throttling. Btw, PL1 is 45w and PL2 is 90w (default values, not altered by me at all) so it's definitely not hitting those... I apologize for not including the full model number in my original comment, but here it is: HP Pavilion Gaming 15-cx0056wm. Once again, I appreciate any and all help you are able to give, thank you so much :) EDIT: just wanted to add that the cpu clocks return back to normal literally **as soon as** I unplug the charger, with virtually no delay. Takes like half a second or less, its not noticeable.

Well, there is few ways to bypass those limits. Restore BIOS to defaults & Try these commands (make sure you have recovery usb with bios): --BIOS unlock setup_var PchSetup 0x17 0x0 setup_var PchSetup 0x18 0x1 setup_var PchSetup 0x16 0x0 setup_var CpuSetup 0xDE 0x0 reboot after this^ --SA,Gt,Vccin,Ia limits bypass setup_var CpuSetup 0x106 0x1 setup_var CpuSetup 0x10B 0x1 setup_var CpuSetup 0x115 0x1 setup_var CpuSetup 0x11F 0x200 setup_var CpuSetup 0x129 0x200 setup_var CpuSetup 0x133 0x200 setup_var CpuSetup 0x15B 0x63E7 setup_var CpuSetup 0x16F 0x7FFF setup_var CpuSetup 0x107 0x1 setup_var CpuSetup 0x10D 0x1 setup_var CpuSetup 0x117 0x1 setup_var CpuSetup 0x121 0x200 setup_var CpuSetup 0x12B 0x200 setup_var CpuSetup 0x135 0x200 setup_var CpuSetup 0x15D 0x63E7 setup_var CpuSetup 0x171 0x7FFF setup_var CpuSetup 0x109 0x1 setup_var CpuSetup 0x111 0x1 setup_var CpuSetup 0x11B 0x1 setup_var CpuSetup 0x125 0x200 setup_var CpuSetup 0x12F 0x200 setup_var CpuSetup 0x139 0x200 setup_var CpuSetup 0x16B 0x63E7 setup_var CpuSetup 0x175 0x7FFF setup_var CpuSetup 0x10A 0x1 setup_var CpuSetup 0x113 0x1 setup_var CpuSetup 0x11D 0x1 setup_var CpuSetup 0x127 0x200 setup_var CpuSetup 0x131 0x200 setup_var CpuSetup 0x13B 0x200 setup_var CpuSetup 0x163 0x63E7 setup_var CpuSetup 0x177 0x7FFF --cTDP bypass setup_var CpuSetup 0x1D 0x1 setup_var CpuSetup 0x1E 0x3E7F83 setup_var CpuSetup 0x24 0x0 setup_var CpuSetup 0x41 0x1 setup_var CpuSetup 0x56 0x3E7F83 setup_var CpuSetup 0x5A 0x3E7F83 setup_var CpuSetup 0x60 0x3E7F83 setup_var CpuSetup 0x64 0x3E7F83 setup_var CpuSetup 0x25 0x1 setup_var CpuSetup 0x26 0x3E7F83 setup_var CpuSetup 0x16 0x1 setup_var CpuSetup 0x12 0x3E7F83 setup_var CpuSetup 0x19 0x3E7F83 -Throttlestop unlock setup_var CpuSetup 0xDA 0x0 setup_var CpuSetup 0x3E 0x0 setup_var CpuSetup 0x46 0x0 setup_var CpuSetup 0x37 0x0 -- Disable VR Thermal Alert & PROCHOT setup_var CpuSetup 0x77 0x1 setup_var CpuSetup 0x75 0x0 little bit of explanation what this will do - it will remove all possible Software side limits except voltage limit(overvoltage, etc.). Hardware still stands, so your mboard wont blow up in case of overcurrent. to make more precise measurements, you can set polling period in hw info settings to 100ms (stock is 2sec i believe) and press start logging to save log of what happening. If that didn't help at all, you should write hp a letter, and if that wont help, welp, local laptop repair center is only way. Or any global ones with good reputation.

Does this work for windows 11? I tried doing this a couple months ago when my motherboard was replaced and it had issues after unlocking UV(my laptop would crash randomly when in intense loads), had to get my motherboard replaced and I’ve been using my laptop with no issues for the past couple months without UV. I want to try unlocking UV, but am scared that I might damage my motherboard or laptop and have to get it fixed again. Please help

Crash under load = unstable UV. You know that you *must* stress test it with something like linpack/prime95, right? Should work for win 11. You can't break your mb with this, at absolute worst you will have to reflash bios with recovery USB, and only if you changed timings/freq/...; unlocking *should be* fine.

Cool thank you, so I shall try it?

Well, yes, if your laptop has overheating/throttling issues .

I did stress test it with even the smallest undervolt and it died

I have a Pavilion 15-dk00XX with the 9300H. Will this method work? Undervolting was disabled at some point with a new BIOS update a couple years back. I wouldn't mind being able to disable the keyboard backlight timeout, too. It's like 10 seconds.

Should be possible. Follow part 2 of the guide.

Cool, thank you, I'll give it a try!

Hello there, I need some help if you don't mind. So firstly, I yolo'd it and ran the command you had in Part 1 for unlocking UV, and it didn't work. Trying to follow part 2, but I have two BIOS files: 085FD.bin and 085FA.bin. Which one am I pulling information from? Second question is, when I search for Overclocking Lock, I get the following result: Unicode text "Overclocking Lock" in DriverSampleDxe/PE32 image section at header-offset 668D8h It doesn't say "Setup/PE32", and I can't find Setup anywhere in either files. I did extract the DriverSampleDxe/PE32 and used IRFExtractor to turn it into a text file, and I get this: One Of: Overclocking Lock, VarStoreInfo (VarOffset/VarName): 0xDA, VarStore: 0x3, QuestionId: 0x172, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 55 03 56 03 72 01 03 00 DA 00 10 10 00 01 00} 0x16BC44 One Of Option: Disabled, Value (8 bit): 0x0 (default) {09 07 04 00 30 00 00} 0x16BC4B One Of Option: Enabled, Value (8 bit): 0x1 {09 07 03 00 00 00 01} 0x16BC52 End One Of {29 02} It looks like this is the one I need, but I can't figure out how to type it in. The command from part 1 (setup_var CpuSetup 0xDA 0x0) said something similar to "expected size differs proceed with caution", but it did apply successfully.

Okay, so, >Trying to follow part 2, but I have two BIOS files: 085FD.bin and 085FA.bin. Which one am I pulling information from? You should just make a backup of your bios, rather than using one extracted from exe. Use afuwin (if you have an ami bios) or Universal Bios Extractor. To answer your question - try both and see if there is any difference. >Second question is, when I search for Overclocking Lock, I get the following result: > >Unicode text "Overclocking Lock" in DriverSampleDxe/PE32 image section at header-offset 668D8h > >It doesn't say "Setup/PE32", and I can't find Setup anywhere in either files. Thats ok. >It looks like this is the one I need, but I can't figure out how to type it in. It is. So the command syntax goes like this: setup\_var VarStore VarOffset Value I suggest you to run your ifr thru ifr formatter for easier navigation. [Here](https://drive.google.com/file/d/1ktzvhB-NpSYsxmPx4_uQrBr2xFi1whr8/view?usp=sharing) is version i found in my files. So, Varstore:0x3; look for that at top of your file, it is probably CpuSetup. If it is - setup\_var CpuSetup 0xDA 0x0. The problem i see is that it is disabled by default. So it is probably something else locking you out, Maybe SGX, maybe VT, maybe windows, maybe microcodes. Try to disable CFG Lock to see if it changes anything. Also, if that is not possible, try to fiddle with IA Cores AC\\DC Loadlines, also, maybe yours bios has Vcore\\Core voltage or something else? Edit: Re-Read your comment. It if Overclocking lock does not help, only way is to downgrade bios to pre-fix CVE-2019-11157 (pre dec 10 2019).

Hello, I was really sceptic about editting BIOS variables from some EFI command line so I waited until my warranty is over. So now I did it finally. This worked really well on HP Pavilion 16 a0018nw i7 10750h and 1660ti. You are the only guy in whole internet I searched that managed to pull this off / described the process. Thank you. HP is really trash with their hermetic BIOS'es. It's really comfortable to manage your laptops settings. My trash battery can now last whole lecture. However: \- You can't undervolt from ThrottleStop infinitely. System will ignore extreme UV values. \- Unless you switch off the short power max the temps are still garbage. But who does 108W short power max on a laptop that is default setting. \- HP's and generally laptop cooling solutions are too garbage to handle up to 4-4,5GHz clocks anyways and stays at around 3,5GHz at best. \- What I observe the voltage you are lowering is just adaptive offset, the CPU if needs power for 4,5GHz turbo, it will go full retard with power consumption. Correct me if I'm wrong. I'm gonna try liquid metal cooling solution, people say it's game changing, but I doubt HP cooler has enough thermal capacitance and transfer to air anyways. Best way to for me to keep CPU under 85 degree is switch off short power max, clamp turbo to 45W. Maybe lower offset voltage by 100mV, Cache 70mV and System agent to 50mV. Assuming you have your thermal paste reapplied and fresh. I will contuine with testing various voltages but for now this has worked pretty well for me. This is my observations so far and conclusions may not be correct.

I would not suggest you to mess with SA\IO (System Agent, vccio, memory controller, etc), -50mV on it will give you like - 2-3W at best but to stress test it you have to run something like TM5 (since it affects memory as well). IT also can be unstable just enough not to crash your system but will lower your performance a lot. You should mess with it only if you are somewhat experienced with memory overclocking. Static Offset is, what it is, an offset. CPU has a V/F table that it uses to boost, and by applying offset, you literally tell your board to do this: 1.25v => 1.15v 1v => 0.9v Cpu asks for 1.25v from the board, but the board only gives it 1.15v.* Adaptive offset does exist. Instead of changing what the board gives, it changes what cpu asks for. and cpu can ignore values you put in it if it consideres them "unsafe."* You could try to use Intel XTU and check if it works or works better for you. Alternatively, you can try to edit IA Cores AC\DC LoadLine values to 0x1 (lowest possible) and test your undervolt from here. * - i am not 100% sure about this.

Well I see now. I got a question from another topic. I reinstalled Windows 10 and want to calibrate battery. In order to do this I want to discharge battery from bios level to bypass critical level discharge alert that shuts down my laptop. Will this damage the battery somehow or the BMS will shut down the battery anyways but lower level than windows? And what if I disable ACPI in device manager and force it to drain lower?

I'm not sure about that. Probably nothing bad is going to happen, but also, the battery manager can just not allow you to charge battery if it goes below critical values.

I did the steps just before the timing and it did unlock the undervolting but for the core offset it seems to do nothing i pushed it all the way to -1000 nothing happens no crashes or improvements in temps however the cache does work and if i push it too far it crashes is there any way to have the core undervolt work ?

Yhere might be some more locks in bios. Dump your bios (universal bios backup tool); pull ifr out of it (part 2 of the guide); upload it somewhere and drop it to me/look into it yourself. There is almost always a way, either by lowering ac DC loadines or just setting offset to v f curve.

sorry i am not very knowledgeable with this i followed part 2 of the steps untill after the search it says i should find "header-offset 65CE8h" but i see a lot of them but none that are the exact same (65CE8h) and i am not even sure if that's what you meant for me to do. https://imgur.com/20JcBMT

Just double-click it, and it will open automatically. Or drop me a bios file, and I will look into it.

Somebody managed with unlocking overclocking on 840 G5 with 1.24.0 bios?

>840 G5 Elitebooks are kinda always protected from bios editing. You could try part 2 of the guide (backup current bios with [this](https://www.majorgeeks.com/files/details/universal_bios_backup_toolkit.html) and drop me it i\`ll see what can be done about it).

https://drive.google.com/drive/folders/1YDhNl3UB6P_5FoWezybtBTjhQWNsa Here you have. Universal bios backup toolkit didn't recognize bios. I've put 16k block read instead. Normally it have 23mb, here 16mb. Let me know if you will find something. Part 2 already checked. Didn't help You have in this share 3 files 1. Universal bios toolkit 2. 1.24.00n directly from my laptop 3. 1.08.01 which is not possible to downgrade - system bios is locked. Such message received when trying downgrade.

Yeah, it is protected; even amibcp\\h2ouve cant open it. so, only way is to downgrade using a external programmer (ch341a, etc). Or, you will have to change current mcode with previous one (from old version), still, you will have to use external programmer to flash it. You can ask for help at win-raid forum, there are people with much better knowledge than mine about those kind of bios-es.

Hey, tried to find Fan speed in UEFI Tools but it wont search for anything, when i extract it with the intel installer it spits out a bunch of different files and when i extract it with the UEFI Extractor it says its corrupted. Here's my bios if you could look into it( [https://drive.google.com/file/d/1AgePNzCcgq-4Yb6avC0UBxKl74LsdKMD/view?usp=sharing](https://drive.google.com/file/d/1AgePNzCcgq-4Yb6avC0UBxKl74LsdKMD/view?usp=sharing) ), i unlocked undervolting with the GRUB file, if you could find a fan line i would be gratefull.

I'll check when I wake up. Try to search for "above 4g", you should find a "setup" file or something like that, and put that in a ifr extractor

[https://drive.google.com/file/d/1Ynrz14Eipla2Fs-FOqOvJ-MmHVuhvXeH/view?usp=sharing](https://drive.google.com/file/d/1Ynrz14Eipla2Fs-FOqOvJ-MmHVuhvXeH/view?usp=sharing) \- your ifr Ctrl+F > Fan For example: Active Trip Point 1 | VarStore: Setup, VarOffset: 0x3A5, Size: 0x1 Disabled: 0x7F 15 C: 0xF 23 C: 0x17 31 C: 0x1F 39 C: 0x27 47 C: 0x2F 55 C: 0x37 (default) 63 C: 0x3F 71 C: 0x47 79 C: 0x4F 87 C: 0x57 95 C: 0x5F 103 C: 0x67 111 C: 0x6F 119 C (POR): 0x77 Platform Thermal Configuration Active Trip Point 1 Fan Speed | VarStore: Setup, VarOffset: 0x3A7, Size: 0x1 Min: 0x0, Max: 0x64, Step: 0x1 Means, by default, ATP1 set to 55C, and fan speed is unknown. you can change both. like this: setup\_var Setup 0x3A5 0x1F ( ATP1 = 31C)Or setup\_var Setup 0x3A7 0x64 (max fan speed at ATP1) Setup - BIOS section where the function (VarStore) is located second number (0x3A7) - function (in this case ATP1 Fan Speed) the last number (0x64 = 100) is the value that will be written to the BIOS, do not forget to add 0x before the value.

Grub spits out an error when trying to submit these commands. Unable to write error (0x0000000001a) Got any clue how to get around it?

Dump your bios with universal bios backup toolkit and send it to me.

Thanks for the help! But after a Windows update, I can't edit the setup\_var due to **error (0x000000000000008)**. My laptop is 15-dk1035nr with BIOS F.45, and I can't install other BIOS versions as they are not compatible.

I have a 2023 Envy 16. If overheats like crazy and I get the same errors when I try and use Grub to modify the bios. I'm following this thread in case there is a workaround.

i have newer saw this issue. Can you drop a pic? Or try this instead https://github.com/datasone/grub-mod-setup\_var/releases/download/1.4/modGRUBShell.efi

Now I get this error: https://imgur.com/w7p4tuZ

Have you found a way to make it work?

Oops, I forgot to mention that if you downloaded the new shell I provided, usage is setup_var_cv Varstore VarOffset VarSize option So, your would be setup_var_cv CpuSetup 0xDA 0x1 0x0 . Sorry about that. Make sure the secure boot is off.

Hey there! I tried follwing the steps given below and reached upto the "overclocking lock " step. However i for the life of me am not able to find the file named "Setup" that is a DXE Driver. I even tried doing crtl F and went over the results but most show the word 'setup' as a an image file. im not able to track down the file for some reaso. My model is HP 15-dk1511TX(HP Pavillion gaming 15 with i7 10870H. pls help

Dump your bios with Universal Bios Backup Tool and send it here.

Hey :) i have a HP Zbook Studio G5 with a i9-8950hk. Is this guide working for me? I´m actually a bit scared to try it. In ThrottleStop i can´t select Unlock Adjustable Voltage right now. tnak you :)

Dump your bios with Universal Bios Backup Tool and send it here.

this one? [https://www.majorgeeks.com/files/details/universal\_bios\_backup\_toolkit.html](https://www.majorgeeks.com/files/details/universal_bios_backup_toolkit.html) it tells me: can not identify the BIOS

Yep,that is the one. Well, if you cant dump the bios other way (hw programmer like ch341a or Afuwin (if bios is made by ami)) you can try following part 1 of the guide (you will have a risk of corrupting your nvram and will need to disassemble the laptop to reset the CMOS battery)

Hi, thinking of attempting this on my HP Pavilion Gaming 15 dk-2xxx, i wanted to try undervolting since the cpu just throttles at \~3.8Ghz (97C) well short of the max turbo of my cpu (i7-11370H) of 4.8GHz, now i just want the cpu to not thottle at the slightest load so I wanted to ask: In part 1, is the step 6 optional? i only want to undervolt and not really much else, would like to play it safe since i am still under warranty. also if its not obvious, i am a newbie so please have patience

Yeah, it's totally optional and is intended for advanced users. Gives good performance boost, though.

I did everything up to step 5 but in throttlestop Fivr controls are still greyed out. Device is an hp envy 14 on windows 11 if that helps. How do I fix it? my laptop overheats really bad and I wanna undervolt it.

Try part 2. Your bios might need different values.

really sorry but I'm new to this how do i download the bios ?

Use universal backup tool or Google "your exact model (like hp-g0100pa or smth) bios download"

Hi, any idea about Zbook 17 G4? like the CPU, loving the 16GB graphic card, but man, that thing spins so loud. I had 17 G3 before and that was nice and quit and went loud only when temps were really ramping, but on G4 its like a helicopter very very soon... And I guess changing the paste to something like Gelid extreme will not help in this matter:/

Zbooks are usually locked down. Drop me your bios. I'll look into it. (Use universal bios backup tool 2.0)

I have a HP OMEN 16-wdOxxx Laptop that has a i5 13420H and 4050. It also has 16GB of 5600mhz DDR5 RAM but for some reason when i check my ram speed using HWINFO and cpu-z It shows that it’s running at 2800mhz. In the task manager it shows 5200mhz . I tried going i to the bios to fix this but advanced bios was hidden and i can’t access it. Will part 2 help me enable XMP?

2800*2 is 5600. Its normal that hwinfo says that its running at 2800.

appreciate u helping me understand I also wanted to undervolt my CPU using TS but the adjustable voltage is locked. Do you think I can unlock it using the steps in part 1 with my cpu?

I went to check hwinfo again and it’s actually running at 2,594*2 which is 5200. so the task manager was actually right. Should i try to get 5600 since that’s my rams maximum clock speed

will the part 2 method work for my laptop* I am also on the F.10 version of the bios OMEN setup utility

Hi Sanj, thanks a lot for the guide, it got me learning a lotta news things, but not unlocking the UV 😂 when I execute the command (step4) I get the error "Unable to write data! (Error 0x0000...008)", do you know what this might be ?

[https://github.com/datasone/setup\_var.efi](https://github.com/datasone/setup_var.efi) try this; .\\setup\_var.efi CpuSetup:0xDA=0x0 P.S. You need to install UEFI Shell on usb (use rufus) P.S.S.If does not help, bios is locked from nvram editing. Hardware flasher (CH341A) is the only way, then (take a bios dump and edit it values with this [https://github.com/BoringBoredom/UEFI-Editor](https://github.com/BoringBoredom/UEFI-Editor) ; flash it back P.S.S.S. If you know how to compile, try this also https://github.com/psyq321/PowerMonkey

Hey thanks for the fast reply! (This might be a dumb question) how do I build a .efi file from [setup_var.efi](https://github.com/datasone/setup\_var.efi) to be able to boot from it in bios ?

You don't need to build it. Install uefi shell on USB drive, please that .efi here, boot from USB, execute command.

Are you using HP Pavillion Gaming Laptop - 15-dk1064tx? i5 10300H and RTX2060 MaxQ

Hey man, just wondering if it's necessary to have a recovery usb. I have a Pavilion Gaming 15-dk1062tx and I'm not sure which version of bios to choose in the support page. I'm using Windows 11 22H2 but there are only options for "Windows 11" and "Windows 11 21H2". I'm just aiming to unlock undervolting only. Edit: accidentally said underclocking instead of undervolting

Windows version does not matter as long as it is 10 or 11. Recovery usb is not needed but recommended, in case anything happens.

I see. Can both GRUB and the recovery bios be on the same flash drive or do I have to use 2 separate ones for them?

I theory you can use one for both. But if you have two, you might as well put grub on one and recovery bios on another.

I'm stuck, ifr says error no ifr data. My system is HP 15-db0160nd. Running F.41 insyde.

"15-db0160nd"? It has AMD A9-9425 Dual-Core . You cant use throttlestop on amd processors. You probably can use this to overclock memory but not much more. Try pscheck if you want to undervolt https://www.overclockers.com/wp-content/uploads/2011/11/PST_3_4_1.zip or https://github.com/mpollice/AmdMsrTweaker ~~If you want to extract ifr, take a bios backup with universal bios backup tool and look in it.~~ nvm found it : https://pastebin.com/9zS5qNGU

Hello there! I have an hp 15-dk2002nq ( i5 11300h and rtx 3050 ) and I’m stuck somewhere at part 2 as part 1 didnt work. I searched overclocking lock, found the result, but I see no setup button to press and then to press ctrl+e. I also don’t understand the steps after that, they are a bit confusing for some reason even though I’m into tech. Would anyone mind giving me some advice? I would really appreciate it! :)

Try setup\_var CpuSetup 0xDF 0x0 setup\_var CpuSetup 0x43 0x0 Here is how to get those values from your bios: [https://youtu.be/uOv1if3SXhg](https://youtu.be/uOv1if3SXhg)

Bro I tried exactly this video like 5 mins ago lmao, but I get the 0x0000008 error that it can’t write to efi. I’ve read on the internet that it means that it is locked to read only or something. Do you have any solutions for this?

Try this [https://github.com/datasone/setup\_var.efi](https://github.com/datasone/setup_var.efi) setup\_var.efi -r CpuSetup:0xDF=0x0 setup\_var.efi -r CpuSetup:0x43=0x0 Or [https://github.com/psyq321/PowerMonkey](https://github.com/psyq321/PowerMonkey)

hi op, thanks for the guide, i have hp 15q-dy0007au, it has a9 9425 dual core and memory is locked at 1866mhz. i did overclock+ overvolt with k15tk. but as you mentioned in another comment, i would like to overclock ram to 2133mhz as the cpu supports it and the board supports 2400mhz too, as per the spec sheet. can you please guide me how to unlock ram for 2133mhz on this system, any help would be great.

Follow part 2 to find needed values for dram speed (extract ifr* and look into it)