Overvolting potato graphics

[ebysamz]

Hello there guys, I was wondering if it is possible to overvolt a potato graphics card like a gt620/gt610 by modifying the bios. These cards only use 30 watts from the PCIe slot they are plugged into so they have lots of power unused and, if we disregard cooling and noise, is there a way to overvolt these potato graphics cards and make them give a couple more fps? I tried to flash my Pegatron GT620 with 1024MB GDDR3 with every gt620/gt610 bios that i could find but none of them would let me tamper with the voltage settings. So, I tried to use a bios editor but I couldn't even find one that was compatible with this card. It has a GF119 which is a fermi gpu found in the gt610 and the gt520. I am certainly not new to the world of overclocking but I am posting this here because I am new to the world of graphics card bios tweaking and I hope there is something i missed in my research that you guys might know about. So, if anyone has any experience with bios tweaking graphics cards, could you guys please help me and  as I said before, I don't care about noise, cooling or even frying the card though I would prefer it if the last one doesn't happen.

[harrynowl]

With a bios no. the VID on the controller is locked.

[ebysamz]

24 minutes ago, harrynowl said:

With a bios no. the VID on the controller is locked.

So is there another way? something like a pinmod?

[harrynowl]

7 hours ago, ebysamz said:

So is there another way? something like a pinmod?

Depends on how the VRM is built. But you'd need to trick the VID into being higher. Determine the controller and if you're lucky there's a datasheet for it  

 

 

[David_K]

This things are weak, with small cores meant with low clocks, even with voltage increase they wont take clocks very well. and FPS wouldn't really increase as they are stupidly weak.

[ebysamz]

12 hours ago, harrynowl said:

Depends on how the VRM is built. But you'd need to trick the VID into being higher. Determine the controller and if you're lucky there's a datasheet for it  

 

 

Could you please point me in the direction of a guide or post about this process of doing this

[harrynowl]

51 minutes ago, ebysamz said:

Could you please point me in the direction of a guide or post about this process of doing this

Take a look at the PCB and find the controller. Then find the data sheet and determine the VID combination from the datasheet VRD11 table. If all of that sounds too scary then you shouldn't be doing this  

 

Taking a look at guides for known cards (try something like GTX680) will help you out.

[ebysamz]

1 hour ago, harrynowl said:

Take a look at the PCB and find the controller. Then find the data sheet and determine the VID combination from the datasheet VRD11 table. If all of that sounds too scary then you shouldn't be doing this  

 

Taking a look at guides for known cards (try something like GTX680) will help you out.

Alright, thanks ill give it a shot