Weird SLI problems.

[LOCO LAPTOP]

Specs:
Core i7 950 4.2Ghz
Gigabyte GA-EX58-UD4P
x2 BFG GTX260 OCX
Ultra X3 1600W psu
HP 2408W

Problem:

Cards work fine by themselves with CPU overclocked and video card overclocked, samething when stock.

But when I enable SLI overclocked or stock, my games crashes and with OCCT I get tons of errors but no visual issues like artifacts . So far I changed SLI bridge, underclocked gpu and memory, tested with different powersupply, changed thermal paste and cranked up the fan speed to 100%, and when back to stock on my cpu.

This is an issue I been dealing with a long time with different drivers and windows installs.

I know I might have to RMA a video card but which one.

 

[ShuttleLuv]

Did you memtest your ram? How about trying a different mobo?

 

[LOCO LAPTOP]

Did you memtest your ram? How about trying a different mobo?

memtest the ram with and without overclock when I had the 4890's and it was fine maybe its not the case now I might have to check that again.

I don't have a different board that support SLI so no.

Also I forgot to say that I tested the 2nd slot on the board and that it also didn't give me any issues.

 

[LOCO LAPTOP]

So far memtest didn't detected anything and that with the overclock.

 

[LOCO LAPTOP]

Yep it was the video card. I had to go and buy another GTX260 to find which one was bad.

RMA Time...

 

[ShuttleLuv]

Seems logical now. Both have to be talking to eachother correct. Makes sense.