|my card all of a sudden started working again|
Do u mean post and boot ok or fans spinning & blank screen?
What happen when u start the system without a video card(fans spinning, beeps or nothing)?
If the system refuse to post without the video card installed then don't blame the video card or pci-e slot. If i were u i will start with 280w PSU.
We can not fight new wars with old weapons, let he who desires peace prepare for war - PROPHET.