11-25-2013, 06:08 AM
do you have supplemental power supplied to the pci bus?
it sounds like what's happening is your gpu is trying to draw too much power through the pci slot, and either the motherboard is proactively shutting things down, or you've already melted down the 12V on the ATX connector and it's tripping the surge protector in the PSU.
this is actually a fairly common problem with dual-gpu cards, and the solution is to feed supplemental power to the pci bus.
it sounds like what's happening is your gpu is trying to draw too much power through the pci slot, and either the motherboard is proactively shutting things down, or you've already melted down the 12V on the ATX connector and it's tripping the surge protector in the PSU.
this is actually a fairly common problem with dual-gpu cards, and the solution is to feed supplemental power to the pci bus.