PNY ti4400 GPU v/mod help???

[qwerty57]

Ok I followed xbitlabs crap artice on there ti4400 vmod and using the 620 ohm resistor soldered to pin 18 and 20 of the sc1175csw controller all I get Is garbage all over the screen Ive tryed a 1k resistor and it boots fine but when I bench I just get a white screen. I keep seeing people using a 2k-5k pot tunned to 1.3k anyhelp will be thankful....also I have solid copper hs bolted on so heat Is no issue...

[qwerty57]

sorry current spec's

ga-7vrxp rev 1.1 (f7)
2000+ +5%vcore
1x512meg samsung ddr333@ 2,2,2,5,1,
ti4400@310/680
audigy gamer
2x80g wd 8meg raid 0
antec truepower 550

11,647 no oc fsb/cpu

http://service.madonion.com/compare?2k1=3802917

[DDTUNG]

The SC1175 controls Vmem not Vgpu, and 620ohm probably gives you too high Vmem. I have not worked on Ti4400but if it is similar to Ti4600 you should use around 1.2-1.3k for your Vmem mod.

If there is a SC1102 chip it controls Vgpu.

DDTUNG:cool:

[qwerty57]

see in xbitlabs artice volt/moding the geforce ti4400 they stated the sc1175csw controlled gpu core thats probally why I kept getting stuff on the screen. what size resistor do you recommend for the SC1102 chip witch I have also for my GPU core.

[DDTUNG]

Start with 1.5k and turn down the resistance gradually as you measure the Vgpu.

DDTUNG:cool:

[qwerty57]

It seems like any resistor I use doesn't affect the GPU voltage at all. Im using pin 11 and 14 on the chip> maybe I should give up. "sigh"