- Oct 13, 2013
- 16
- 0
- 66
hello right now im running a 600 watt power supply with 4 seperate 12 volt rails 2 of the 12 volt rails 2 of the rails are dedicated for 2 pci express cards with 17 amps on each rail right now im running a single HD4890 pcie gpu and my brother gave me his old 4890 gpu when he upgraded to an nvida card both cards require 2 6 pin pcie conectors per card and my psu only has 2 six pin pcie cables so what i need to know is can my current psu handle the extra gpu for crossfire because i cant upgrade ATM