Can't figure out what is giving me BSOD when using SI

[Shadowmeph]

I am having a problem with trying to figure out what is crashing my win7x64 , I decided to try out SIsoftware Sandra , and did a Analise and advice it starts the goes for a while then I get a BSOD, I have the memory.dmp file but I am not sure how use it to determine what is crashing my system. this is the only time my system has ever crashed . Mind you I haven't used this software in a few months , the only thing that has charged is I went from my nvidia285GTX, to 2x2gb 4870s , which I did use the driver cleaner to remove the old nvidia drivers before I installed the ati cards.

[_dangtx_]

get ubcd, start checking ram, prime it, then go to test the gpus.

look up temps and voltages, something may catch your eye.

there is no easy answer..you just have to go one by one.

probably software, but you never know :)

[Dr_BenD_over]

Probably something to do with CF.

[Shadowmeph]

YA that is what I thought time to dig through all of my cds to find that cd hehe.

[DCCV44.2223]

Have you tried running Sandra from a clean boot and see if it still BSOD?

[KaptCrunch]

GA-MA790X-UD4P

The PCIEX16_1 and PCIEX8_1 slots support ATI CrossFireX technology, and conform to PCI Express 2.0 standard.
(Note 2) For optimum performance, if only one PCI Express graphics card is installed, be sure to install it in the PCIEX16_1 slot. The PCIEX8_1 slot shares bandwidth with the PCIEX16_1 slot. When PCIEX8_1 is populated with a PCI Express graphics card, the PCIEX16_1 slot will operate at up to x8 mode.

Advertised performance is based on maximum theoretical interface values from respective Chipset vendors or organization who defined the interface specification. Actual performance may vary by system configuration.

i don't see sli support for this MB only cross-fire