Nvidia-vBIOS-Clock-Power-Tweaker - PASCAL TESTING NEEDED !

[xing0999]

I bought a graphics card for 50usd, it has a p4200 mobile gpu chip, will your tool work?

[Khenglish]

Windows is very insistent that v1.3.4 has a virus in it.

 

Also, do you have a way to effectively shift the frequency/voltage curve like normal overclocking? Ex: Can I offset clocks by +150MHz, or does setting a higher core clock just pick a higher frequency/voltage point?

[JadeRover]

On 7/27/2026 at 4:18 AM, Khenglish said:

Windows is very insistent that v1.3.4 has a virus in it.

 

Yes it happens with unsigned exes. You can download the source code, download python 3 and run CPR_MAIN.py and it will run the code directly without going through the packed exe. 

 

On 7/27/2026 at 4:18 AM, Khenglish said:

Also, do you have a way to effectively shift the frequency/voltage curve like normal overclocking? Ex: Can I offset clocks by +150MHz, or does setting a higher core clock just pick a higher frequency/voltage point?

 

I see what you mean. 

 

The way the program works is by allowing the card to reach higher limit clocks. Meaning it will figure out the frequency/voltage points. 

 

It's not like msi afterburner's clock slider that uses the same voltage points but for higher clocks. 

 

For example, my p4000 stock vbios gave a maximum of 1240mhz @ 0.750v

After the overclock from my program is applied it reaches 1898Mhz @1.050v.

 

Unfortunately I doubt I will be able to obtain voltage control, I only found one person talking about voltage points and I could not find correlations with the clock table. 

[JadeRover]

On 7/24/2026 at 4:56 PM, xing0999 said:

I bought a graphics card for 50usd, it has a p4200 mobile gpu chip, will your tool work?

 

Very nice, with an overclock you should get >1070M overclock levels of performance! 

 

Yes, I saw your post on techpowerup. It should work. If it doesn't send me your vbios and I will take a look. 

[JadeRover]

Version v1.4 is out, you can now edit pascal desktop cards

 

Release v1.4 | Nvidia-vBIOS-Clock-Power-Tweaker · JadeRover/Nvidia-vBIOS-Clock-Power-Tweaker

[Khenglish]

Editing the attached P5200 vBIOS with v1.34 of your tool isn't getting me an overclock. If I overclock vram, the 1.5V speed bin gets ignored and it runs at the 6ghz 1.35V speed bin. Raising the core limit over 1708 is also ignored.

 

Currently I'm trying to set 8GHz on the ram. I am using the #2 memory strap setting on the card instead of #0 like every other P5200 in existence. idk if that matters for vbios vram overclocks.

p5200_dell.rom p5200_8000_2.bin

[JadeRover]

Just now, Khenglish said:

Raising the core limit over 1708 is also ignored.

 

Well that's odd, I compared both files and all the data is correctly written.

 

I didn't know the vram had speed bins associated with voltage, where do you read the voltage of VRAM ?

 

Here's a 1960Mhz core and 4504Mhz vram bios that should work (if the ram can overclock well)

 

p5200_dell_OC.bin

 

 

And here is an MSI "max-P" version of the P5200 that can boost up to 1911Mhz @160w

 

P5200_max_P.bin

 

[Khenglish]

1 hour ago, JadeRover said:

 

I didn't know the vram had speed bins associated with voltage, where do you read the voltage of VRAM ?

 

 

 

Multimeter. The card runs memory at 1.35V, except for the max speed bin (7.2GHz) runs at 1.5V. The P4000 runs 6GHz at 1.5V since that is its max memory speed.

 

The OC bios had the same issue. No core overclock. RAM would only run 6GHz.

 

The card cannot run an Nvidia driver with the MSI vBIOS.

[Khenglish]

Raising the TDP does work though. This is 125w vs 110w in firestrike:

 

systeminfo doesn't work, but this is on a P150EM with a 3920xm at 4.3ghz that is modded for direct dGPU display output.

[Khenglish]

Time Spy with 150W power limit (effectively no limit).

 

 

 

Also, the power slider does work. Only Nvidia Inspector (NOT Nvidia Profile Inspector, you need Nvidia Inspector from ~2017) can control it, but it works.

 

[JadeRover]

15 hours ago, Khenglish said:

The P4000 runs 6GHz at 1.5V since that is its max memory speed.

 

Huh, I wonder at what voltage my vram runs at as it does 9Ghz on my P4000

 

15 hours ago, Khenglish said:

The OC bios had the same issue. No core overclock. RAM would only run 6GHz.

 

That's so strange, okay well I will investigate, I'm sure I can get it working as iMac vbios for Px200 manage to overclock them no problems. 

 

I will make a completely custom vbios without using my app, I'm annoyed it doesn't work, I though the app could be universal... 

[Khenglish]

The tool does seem to raise both base and boost clocks correctly, just not the max clocks. Without mods, the card only runs 1709MHz if under 50C. With mods it will maintain 1709 over 50C and just bump the voltage up from 0.85V to 0.862V instead.

[JadeRover]

What does the GPU-z windows show ? Normally the edits from the program to base and boost clocks should be visible there.

[Khenglish]

GPU-z always shows 1709 as max boost clocks. For RAM it depends on vbios. For the 3 that work on the card:

 

vbios 1:

 

Will show the overclock, but run at 6ghz.

 

vbios 2:

 

Always shows as 6ghz even unmodded, but will properly run 7.2ghz. It always displays 6ghz and runs at 7.2ghz even if overclock modded.

 

vbios 3:

 

Will both show 6ghz and run at 6ghz if overclocked. If unmodded displays and runs 7.2ghz.

 

I might be mixing this up some, but it's something like the above. The card can only run Dell vbios. MSI and Lenovo both crash on an Nvidia driver. HP does not work at all. The card itself is a Gecube card. I have not found a gecube p5200 vbios.