Question about ASUS P5S800-VM Motherboard

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Cannot turn it ON

The onboard LED is ON, but when I press power button nothing is happening.
The button is fine I`v checked it. Please , help me.

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  • Mantel Jun 15, 2008

    Yes, I have used this pc for a year. Everything was fine. What can be wrong? Is there way to turn on system without using PWRBTN?

  • Mantel Jun 15, 2008

    Power supply is new, I installed it two months ago, Everything was working fine, Until I turned PC in sleeping mode. After that I cannot turn it on.


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  • 15 Answers

Did u ensemble this mobo yourself into a case if so did you connect all the "power up" cables the right way onto the board and if it was working already check ur powersupply

Posted on Jun 15, 2008

  • vinnie78 Jun 16, 2008

    did you also tried to take out the battery for cmos leave it out for 5 min and also the powercable out of the socket 4 bout 5 min then put the battery back in and put power cable in the socket and try turning it on


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So if i'm getting this correctly your computer will not boot even with just the basics.  Have you tried directly shorting the pins on the mobo instead of using the power button?  Unlikely problem but it would be an easy fix.  You might also want to take your power supply out and get it tested.  The geek squad at best buy will usually do that for free, or you can buy your own tester, or buy a cheap power supply.  If both the switch and power supply are good and you get nothing trying to start it up it means you probably have a bad mobo.  If your memory or cpu was bad and nothing else it would still boot up just without anything on the screen and might give you a series of beeps.  Well I hope i've helped and that you can get this fixed soon. 

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