Question about System Power Supplies

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I have a media center cpm 1180n desktop, the green light on back of PS is blinking and when I disconnect the mobo is steady green however when I connect the mobo back to my MB and press the start bottom computer wont start. I have disconnected the power to all components as well removed the all the card including the RAM and still nothing happen. please advise if the PS is the problem bestec 300 atx 12z power supply

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Yes it sounds like the power supply is shot, you can get a replacement at any computer shop for around $40. i would put in a 400w or 450w that way if you add another hard drive or opitcal drive it wont be a strain on the new power supply

Posted on Nov 30, 2008

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  2. Reconnect connectors except the one with 4 wires, 2 yellow and 2 black, then switch on. If CPU fan turns on then you have a bad processor.
  3. If the fan is still not turning on then check the USB port pins for short circuit.. disconnect it from the board and switch on.
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