Overclock.net › Forums › Volt Mods › General Volt Mods › Graphics Cards Volt Mods › Help volt-modding an ASUS GTS 250
New Posts  All Forums:Forum Nav:

Help volt-modding an ASUS GTS 250

post #1 of 7
Thread Starter 
I have an ASUS GTS 250 Dark Knight 512MB. It's stock frequencies are 740/1836/2200. After buying an Accelero S1 and 2 120mm fans, I was able to overclock it to 820/2000/2600. Now I want to push the frequencies further, but for that I need to voltmod my card and I've never done this before. As far as I know, on GTS 250 software voltmod doesn't work, so in this case I can make smaller resistances and higher voltage using a pencil, but I don't know how to do that. Please, help me.

Here is a photo of my GTS 250.

199042d1299583451-help-volt-modding-asus-gts-250-img_2428.jpg
Edited by vicciu - 3/8/11 at 3:30am
post #2 of 7
Thread Starter 
Here are 2 more images which as I found are needed for volt-modding:
199085d1299612410-help-volt-modding-asus-gts-250-img_2439.jpg

199086d1299612410-help-volt-modding-asus-gts-250-img_2441.jpg
On the first chip is written:
uP6206AK
VCZ96A

On the second chip is written:
uP6281S8
VGP979
post #3 of 7
On the uP6206, FB is pin 6.

Don't have a datasheet for the uP6218 though. FB is most likely pin 4, but I'm just guessing without the datasheet.
    
CPUMotherboardGraphicsRAM
E8400, E8600, 980BE T2RS+, P5E3, TA890FXE 8800GTS's,GTX's,GS,Ultra's,9600GT Lots of D9's and some crap DDR3 
Hard DrivePowerCase
Seagate 250GB + 80GB WD for benching TT 875w, Corsair 650TX Custom bench station 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8400, E8600, 980BE T2RS+, P5E3, TA890FXE 8800GTS's,GTX's,GS,Ultra's,9600GT Lots of D9's and some crap DDR3 
Hard DrivePowerCase
Seagate 250GB + 80GB WD for benching TT 875w, Corsair 650TX Custom bench station 
  hide details  
Reply
post #4 of 7
Thread Starter 
Thanks for information PizzaMan.
I don't need memory mod, just GPU. The datasheet for uP6206 you attached is for GPU volt-mod? If yes, then should I connect the 6th pin from that chip to ground?
post #5 of 7
Yes, measure the resistance between pin 6 and ground. Use a potentiometer about 20 time the resistance between pin 6 and ground.
    
CPUMotherboardGraphicsRAM
E8400, E8600, 980BE T2RS+, P5E3, TA890FXE 8800GTS's,GTX's,GS,Ultra's,9600GT Lots of D9's and some crap DDR3 
Hard DrivePowerCase
Seagate 250GB + 80GB WD for benching TT 875w, Corsair 650TX Custom bench station 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8400, E8600, 980BE T2RS+, P5E3, TA890FXE 8800GTS's,GTX's,GS,Ultra's,9600GT Lots of D9's and some crap DDR3 
Hard DrivePowerCase
Seagate 250GB + 80GB WD for benching TT 875w, Corsair 650TX Custom bench station 
  hide details  
Reply
post #6 of 7
Thread Starter 
I measured the resistance between pin 6 and ground and it is 1K ohm. This means that I should put a 20K ohm potentiometer? If yes, what will be the voltage after I will put this potentiometer? The stock GPU voltage is 1.2V.
Also, could you please show me on the atachement what's the 6th pin because I'm not sure if I measured the resistance on the correct pin.
Edited by vicciu - 3/12/11 at 8:12am
post #7 of 7
Here is pin 6.
    
CPUMotherboardGraphicsRAM
E8400, E8600, 980BE T2RS+, P5E3, TA890FXE 8800GTS's,GTX's,GS,Ultra's,9600GT Lots of D9's and some crap DDR3 
Hard DrivePowerCase
Seagate 250GB + 80GB WD for benching TT 875w, Corsair 650TX Custom bench station 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8400, E8600, 980BE T2RS+, P5E3, TA890FXE 8800GTS's,GTX's,GS,Ultra's,9600GT Lots of D9's and some crap DDR3 
Hard DrivePowerCase
Seagate 250GB + 80GB WD for benching TT 875w, Corsair 650TX Custom bench station 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Graphics Cards Volt Mods
Overclock.net › Forums › Volt Mods › General Volt Mods › Graphics Cards Volt Mods › Help volt-modding an ASUS GTS 250