games wont run in SLI

September 10, 2010 at 13:43:06
Specs: WinXP Pro 5.1.2600, C2D 6420@3.000 2GB K
Have tried several games in SLI mode but none will run longer than 20 min. before a crash e.g. screen turns a solid color and sometimes i can still hear sound in the backgornd, sometimes looping. must hard boot to recover. Games run for hours without crashing when not in SLI mode.

What i have done so far:
Tried several different display drivers new, old and BETA -- driver sweeper used each time.

Flashed motherboard BIOS to most current.

Flashed both cards to the same BIOS.

Swapped video cards slot for slot.

Ran prime95 for 12 hours on all 3 tests without errors.

uninstalled/reinstalled games and applied patches.

System specs.
MB - XFX 790i ultra with p09 BIOS
c2d E8400 @ 3.6 ghz. 400x9
2GB crucial balistix @ 1600 mhz. 8-8-8-24 2T linked and synched
2 EVGA 8800GTS 320
Ulrta 1000 watt power supply
74GB WD raptor - games and OS drive
OS WinXP SP3 updated

Have the lambs stopped crying Clarice?

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September 10, 2010 at 13:53:54
Might be the PSU

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