I was playing Fallout 3 this morning, and my PC shut down. I rebooted, started playing it again and it shut down. I recently bought a new Video Card 2 weeks ago Radeon 4870. So this thing wants 500W minimum. My PSU is 500W. I have had no problem for about 2 weeks and today I notice a high pitch whine coming from power supply. It gets louder if I start running a graphics intensive game like Fallout 3 or 3D Mark. It is fine right now, but as soon as I run a game, it shuts down the PC. At first I thought it was the CPU, but I dont think they make noise like this. So I think it must be the PSU or vid card.
What do you think, do PSU's make noise like this when pushed?
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