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System Won't Boot after Powering Down


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#1 dug2012

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Posted 10 April 2010 - 03:15 PM

I have an hp pavillion wtih the mcp61pm-hm rev. 2.2 MotherB.
Similar but slightly different problem:
My hp pavillion will not boot after
a power down.

I tried booting from dvd and thumb drive but
did not work.

The drive light and the wireless light are solid on when
powered up but nothing happens.
The dvd tray works, and the dvd drive spins up with disk in or not.
All fans work. The green power light on the power supply is on when plugged
in.
the power switch does not
turn off the mother board when powered up.

I removed ram, all cards and tried powering
bios, but same symptoms, the drive light stays solid and the power switch does not turn off the mother board.

Any ideas? blown motherboard? can malicious software do this? I had just upgraded avg virus.

Last time my son installed ipod it did a similar thing but I could boot dvd to recover...

thanks for any help

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#2 MrBruce1959

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Posted 10 April 2010 - 04:05 PM

Have you tried unplugging the power supply from the AC outlet for a few minutes?
Sometimes there is an automatic reset that takes place if the power suply is unplugged and the power switch is switched on.

Your problem is most likely hardware related and not virus or software related.

Was any new hardware added to the system lately?

Has anyone been inside the computer before your problems started happening?

I am not 100% sure at this moment, but for lights to remain on on certain devices indicates something is not connected right and it is haulting the system from booting up, it could be something minor like a keyboard or mouse has become disconnected or is not making a full connection in its port.

Does the keyboard light up and does any lights remain lit, besides the scroll lock key? Are any keys on the keyboard stuck in the down position?
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