Quote from: PRCman on June 03, 2011, 01:40:14 AM

What motherboard are you using?

Whatever POS that came with the an Dell SC440.

Quote from: bcpokey on June 02, 2011, 11:52:42 PM

Were you crossfiring the cards? Or in Windows XP 32bit (I think). Crossfire is forced to 4 GPUs max. One version of windows is reported to also have that limitation.

No crossfire, running under Ubuntu.

Quote from: bcpokey on June 02, 2011, 11:52:42 PM

As for PSU problem, 6 5870s can run comfortably on a 1200W with no worries. The biggest worry is still as I said frying the motherboard by running so much power through it.

I'd also advise thinking about how you're going to get power to the 6pins.

ChrisB.