Hi.
I'm running a 900W Be-Quiet Dark power pro. I have two 5970's running in crossfire from this PSU but it's very unstable.
I have been running the PSU in multi-rail (at least I think so) as I have two PCI-E power cables running from the PCI-E
Slots PCI-E 1 and PCI-E 2.
These run as...