I recently bought a Rosewill 750-M PSU to replace an Antec Earthwatts 500. My computer worked fine before making the switch. After installing the Rosewill PSU, I attempted to boot. Fans spun up for a second, then turned off. After a second, they spun up again and stayed on. However, I had no video output. I put the old Antec PSU back in, and still had the same problem. I put another GPU in the computer, trying both PSUs, and still nothing. I switched out the monitor also, which didn't work. What should I do?
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You should at least check whether it supplies the correct voltage on 3.3, 5 and 12 V. This is where PSUs usually fail (at least for me).– JoeyOct 27, 2012 at 16:36
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is there any sound when the computer start up?– ChinOct 27, 2012 at 16:39
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Only sound I hear is the fans.– GregoryComerOct 27, 2012 at 16:50
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If there's no video, sounds like a bad pin/cable connection. Check the fan and power connectors of the GPU and CPU for bent pins, then try replacing the cables.– Paul SweatteApr 16, 2013 at 1:07
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