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View Full Version : Peg buffer,link,latency,root etc for nvidia sli on 975 chipset?


lross78550
08-28-2006, 02:47 PM
Im using a Asus P5WDG2 WS Professional motherboard. and 2 7900gtx video cards in sli mode with the moded driver it works great, every know and then i do see some video drop out while playing oblivion 1/10th of a second black screen then back to normal. i started playing with the following settings in bios and it SEEMS to be making a difference but i was wondering if any of you gurus really knew what these settings do and what they shoud be set at for nvidia cards on a 975 chipset. here are the settings in bios.

Peg Buffer Length: auto, long, short

Link Latency: Auto, slow, normal

Peg Root Control: Auto, Disbable, Enable

Peg Link Mode: Auto, slow, normal, fast, faster

Pci Express Slot Power: Auto, Light, Normal, Heavy, Heavier.

Leaving these settings to auto do NOT seem to be whats best for an Nvidia SLI configuration but i have no imperical evidience to back that up.
Thanks
Lee

BTW One of these settings seems to have made a big difference in my gpu temps. (for the better im running about 64c not as compared to 74c when everything was set to auto and i ran a 3d mark 06 test after the bios settings change and the difference was 75 points slower.. i believe thats within the margin of error for 3dmark 06 i ran an 11,574.
Thanks Lee

Leon2ky
08-28-2006, 03:21 PM
What driver are you using? Link pls.

lross78550
08-28-2006, 03:23 PM
http://www.xtremesystems.org/forums/showthread.php?t=106212
thanks lee

p.s. look at your private message box.
Lee

lross78550
08-28-2006, 08:43 PM
bump

lross78550
08-29-2006, 08:03 PM
last bump... no one out there is running nvidia sli on a 975 chipset motherboard and wants to figure out the correct pci-e setttings for our videocards???? Anyone??
Lee

eva2000
08-29-2006, 08:13 PM
well i just tried 2x256MB BFG 7800GTX SLI on my P5W DH

i had the PEG links as AUTO, Normal, AUTO, Normal, Heavy

Omarko
10-10-2006, 09:13 PM
well i just tried 2x256MB BFG 7800GTX SLI on my P5W DH

i had the PEG links as AUTO, Normal, AUTO, Normal, Heavy

and whats the results ?