Question about ASUS Essentio Desktop with Intel Core 2 Quad Processor

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Asus CM5570 Powers on 20sec/off 5sec/on to stay, no video or POST

I have an Asus CM5570-AP003. It will power up, then shuts down after 20 seconds, then it will power up again and stay on. I started the PC with just the Motherboard and power supply and it gives me the same issue, on 20seconds then off 5 seconds then back on to stay. I don't get any Beeps either and everything is connected correctly. Even with everything disconnected it won't beep and tell me it has no ram, HD etc. I have tried contacting Asus, but seems they lost all interest in their own company to deal with issues. Seems they just sell **** and then avoid you when you need a warranty replacement. This is longer than 90 days to return it to the store I purchased it from and getting a working one.
I have tried a different HD, CD drive, RAM. Cleaned out the heatsinks (which had no dust anyways).

I don't get a bios screen or any screen image for that matter. When I first was trying to reformat the PC it went to 3% and then started showing some strange things all over the screen. Thought it was going to just need a PCI video card but after 1 hour it still did not move off 3%. I have never gotten it back to this state again though.

I have a feeling the Motherboard fried like my other Asus motherboard, but can't seem to get Asus to uphold their warranty. This does not seem right as my other board would not even get power, but this one gets power and turns on.

Any suggestions how I can further try to troubleshoot this would help. Its def not a normal thing I run into and I am usually the one fixing PCs

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  • Mark Zbylut
    Mark Zbylut May 14, 2010

    You have done a wonderful job describing the issue and trouble shooting. If you do not get a BIOS screen you definitely have a motherboard fault. Let me confirm that you took all the memory out and nothing changed? No beeps or anything? If you get beeps then you might have some bad memory.

  • Kyle Martin
    Kyle Martin Nov 14, 2013

    also had an issue and found the switch to be faulty



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I think that there is a problem with SMPS ( power supply) try barrow the SMPS from any one for few hrs. it will resolve the issue.

Posted on May 14, 2010


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