Hello, I recently boughy myself an AMD HD 7770 Graphics card and I just realized the reason it wasn't working was because my power supply only supported 300w Also, a biggie to this problem, my graphics card of course requires a power connection to it which is a 6pin pci express. The power supply I have now does NOT have a single 6pin connector.. So now I need some help. Can anyone suggest me a fairly cheap power supply that has +600w along with a 6pin pci express? Any help would be greatly appreciated!