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Laptop turns off 30 seconds after boot up

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Last response: in Laptop Tech Support
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November 22, 2012 11:56:45 PM

Hello Everyone and thanks in advance for the help.
Compaq Presario V5000.
It apparently had some kind of virus and was taken to best buy for a diag.
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Unit has hardware issues related to ram, optical drive, and possibly motherboard. Shuts off during windows and cannot pass memtest. Disc drive ejects during install.

I have replaced the memory with a 1gb stick that I know is good. Same Problem.
I took the laptop apart and inspected the MB for soldering that has come loose and cleaned the heatsink/fan. Same Problem.

It seems like the computer will turn on and run for anywhere between 30 seconds and 5 minutes then it just shuts off. There is no OS that I know of on the computer and I cannot get the XP disc to run long enough to even do a repair. When I start up the computer as normal it says NTLDR is missing.

Just wondering if you guys have any other ideas that I could try to get this thing to stay on so I can reinstall windows.
Thanks again.
a b D Laptop
November 23, 2012 1:04:32 AM

You have to change the motherboard.
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December 11, 2012 5:51:36 AM

Update: New motherboard is in place.
Same problem.
Any other suggestions?
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