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Old 05-04-05, 03:05 PM   #14
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jimmor's Avatar
Join Date: Mar 2004
Location: Scotland
Posts: 568
Default Re: Any way to make the fan on a 6800 *always* run at 100%? BIOS? Something?

If you want the fan to initialise at 100% by 6800 bios mod, then first highlight 2D/3D core speed in NiBiTor's Hex Editor (shown in green), then look at the four bit binary string immediately preceeding the speed string. The first 2 bit part of this string influences fan speed and will typically be "35" for 2D and "64" for 3D. Where the "64" value sets max volts (or 100%), and the "35" in this instance represents approx 53% of max. Can be verified using the Rivatuner Hardware montor.

The second 2 bit part of the string, for anyone interested, is the Performance Level Volts Indicator value for that particular mode (typically 6E, 78, 82 or 8C).
The more I know, the more I know I don't know

Intel P4 3.2 @ 3.85GHz (ASUS P4C800E-Deluxe)
BFG 6800GS (16x1,6vp) @ 300/430/1200.

Driver, 82.12 :-
Aquamark3, 75039
Codecreatures1, 90.8
3Dmark05 v120, 6195
3Dmark03 v360, 14334
3Dmark06 v102, 2949
3Dmark2001se v330, 23793.
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