Hello,

I tried to find a way to use an old rig with bitcoin. So I bought an ATI 5870 card.

I replaced the 8800 gtx by the ati card. I set correctly the pci-e cables (6 & 8 pins, the 8 pins with an adaptator 2x6 pins to 1*8 pins) + 1x6 pins.

I boot: black screen, the lcd screen (DVI) doesn't detect a signal.  If I come back to the 8800 gtx it work again. I tried with another power supply (Seasonic x 850) but it's the same.

Maybe that card doesn't work with that motherboard?

What do you suggest? Thanks for your help

Old Rig:
AMD 64 4800+
GA-K8N-Ultra 9
Nvidia 8800 Gtx
Seasonic M12-700
Corsair TwinX 2x1024 Mo DDR PC3200
Seagate Barracuda 7200.8 SATA - 300
Antec P180