8800 voltage difference on 680i and 975

[CodyDewey]

Perhaps the option in BIOS (Nvidia GPU eX) causes the increase in volts?

My suggestion would be to boot bone stock and measure in 2d/3d
Then increase individual bios vooltages one at a time measuring 2d/3d volts on boot.
And finally if the voltage options dont affect it, perhaps trying various options, i.e. Linkboost & GPU eX.

[G H Z]

Would be nice if Nvidia could/would do software voltage controls like ATI already has.

[kiwi]

If you wrote a nice letter to Nvidia saying that you liked ATI software voltage adjustments but you'd rather buy Nvidia cards if they had such feature, so maybe they would let you know their secret

[SpikeP]

I think it is pci-e clock frequency related.

i recall nvidia saying that their pci-e slots will run slightly faster.

If you take a look at guess2098's results of post 6

975x = 1.55v
680i = 1.64v

now stock pci-e is 100mhz

100 / 1.55 x 1.64 = 105.8 -> 106mhz

that to me seems easily possible. so maybe someone with a 8800 series card can check this out. i am thinking 120mhz on the pci-e shouldn't be too difficult, and if not, then this could be the easy way to voltmod your 8 series card

- Paul

[HaLDoL]

so you're suggesting that upping the PCIE frequency results in a higher vgpu?
I've tried 120Mhz but that corrupted my SATA. I'll try with an IDE HD tonight.

[X909]

My PCIE is currently running @ 115 MHz. No changes in VGPU/VMEM.