Question about HP Pavilion a705w PC Desktop

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My hp pavilion model a705w power wont stay on

When i turn the system on it powers up then immediately turns off then seconds later it tries to turn itself back on but shows nothing on the monitor. Don't see anything wrong with the power supply, and have tried different monitors. I would appreciate some help.

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Hi kevin12676:

First thing to try is to try another power supply.

If that does the same thing, then remove all cards and hard drives by unplugging the power to the drives. Leave the mother board plugged in along with the keyboard.
Then see if you can start it to the bios screens. If you can get to that far, then try to reset all the settings to the default or fail safe. Next plug in any cards, restart the machine to see if gets as far as the start screen where the drive boots. If it does that, then you can plug in the hard drive and see if that gets it to boot. If it boots, then shut down, and plug in the other drives like the floppy, cdroms and so on.
If it boots, fine.

By doing this you are checking each item to see what happens by trial and error so to speak. If the boot fails after one of the items are plugged in, check that item.

Using a trial and error step by step can save many hours, and dollars as well.
When you are through, you may have found the problem.. hope it works.
take care,


Posted on Feb 03, 2009

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If it's not the power supply my next guess would be the processor.

Posted on Feb 03, 2009

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