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HI, I have an Acer Aspire AM5641-B5540A. THE SYSTEM IS COMPLETELY DEAD. i HAVE RULED OUT A BAD POWER SUPPLY. WHAT DO YOU THINK COULD BE THE PROBLEM?

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  • Ernal Mckenzie
    Ernal Mckenzie Oct 06, 2009

    I took that power supply out and put it in a similar computer and it ran fine. I also took the power supply out of he other pc and put it in the problematic computer and still no power.

  • Hank May 11, 2010

    Hi, Please let me know how you determined that the power supply was ruled out. Hank

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Hi,
I understand now that you really checked out that power supply. Before we rule out a dead mobo, you should make sure the on off switch on the computer case is not broken.

Look on your mobo and find the power switch leads from your case power button to your mobo and remove them. Short out these two pins with a small screw driver and see if computer goes on.

http://www.pctechbytes.com/troubleshooting/detail.php?How-to-Bypass-A-Motherboard-Case-Switch-8

If that fails, and you checked your memory and CPU, then well, R.I.P. motherboard.

Hank

Posted on Oct 14, 2009

  • mike_hogue20 Sep 18, 2010

    i had the same problem but my lights worked. i changed out 2 different power supply,s and the second one worked the old one came on but nothing on monitor.

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The cause may be fried motherboard

Posted on Oct 06, 2009

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