8800GT voltage mods

[jason4207]

Do you think it's just the Quimonda chips that are benefiting from the vmem buck mod or Samsung and Hynix as well? I guess I could try pencil modding the memory to see if it responds to higher voltage and if not I could try the vmem buck mod. Kind of annoys me I'm losing like 50 mhz on the memory.

I have no idea about the Samsung or Hynix. I've been waiting for someone to post something. Your card is behaving like mine, though, so my 1st guess would be that vmem buck would help you. No way to know unless you try!

ok well i dont have the resistors i took off for the ocp mod i ended up losing them. i have an old motherboard. what do i need to measure to find new ones. can i just solder in one of the new ones since the stock ones are gone? i run 1.45 volts usually so i need the 1.2k like you say.

They are 78X. If you see SMR's on your MoBo w/ the same label they might work. If not maybe you can find them online. Only way to measure resistors on the Mobo is to remove them first.

You don't need 1.2k for 1.45v. 3.8-4.2k would work fine for that. You shouldn't have any issues until ~1.625v idle w/ 3.8-4.2k.

Its odd, I've been up to 1.45v on my MSI with no indication of the [s]OVP[/s] OCP activating. Doesn't seem to matter as my card won't clock any higher after 1.29v. What voltages are considered unsafe on these cards?

Have you tried running AquaMark3? That seems to be a good stress test for OCP.