I recently shoehorned an AMD 4870 card (a gift) into a machine with an ASUS P5KE mobo and a 450 watt Cooler Master Power supply (Intel Quad core processor, 4 gb RAM, too many drives). I know: not enough power. Well it worked for a while. Now I get to the final posting screen, checking NVRAM, and then just a blinking cursor. There is no case speaker for beeps. Methinks it is the power supply and not the RAM. Going down to one stick makes no difference.
As I do not have another larger power supply hanging around to swap in, nor the ability to check the voltages, do those who know think it a safe bet
that a new 600 watt PSU should fix things?
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