Windows 8.1 64bit (Was originally 32bit before, which was where my other problems were coming from if you've been following me)
1600w Lepa g gold rated PSU
top to bottom:
1 - 290x - 1x to 16x powered riser
2 - 290x - 1x to 16x powered riser
4 - 290 - 1x to 16x powered riser
6 - 290 - 1x to 16x UNpowered riser.
I can get at at most 3 working (the powered cards).
If I had the last 290 and set the Intensity above 10, it shuts off after a few seconds; immediately if I = 20.
I can't run the two 290's together or it crashes. No BSOD, just cuts power and reboots.
I can run the 2 powered 290x's and the unpowered 290 fine, OR the other 290 instead.
I'm wondering if it's a power issue from the wall, there not being enough juice left in the circuit to power the rig,
Or maybe they all need to be powered?
Or maybe the powered risers aren't doing their job and the mobo is trying to save itself from a meltdown?
What does everyone here think the problem is?