Sounds like it's over-heating. Take off the cover and look (Or listen) for a
bad fan.
It could also be the power supply-cheap and easy to replace.

"PeterM" wrote:

I never had such bad luck in my life. My co-workers computer will freeze
every time I turn on the damn computer. In safe mode, when I'm in the BIOS
setup. When I want to check for viruses. It took me 20 tries just to get
lucky to start it. Now it starts, but it freezes when I try to run anything.
I checked the power supply, with one of those gadgets, it is working. The
computer has WIN XP Home. I undeleted about 10 demo games, that were on the
machine, (my friends kids installs everything) ran Spybot, it had 50 items,
but so far, I was unable to run a Virus Checker, it freezes on me. Is there
a program that I can buy to be able to boot into this computer, so it can
check what may be wrong with this darn machine. Is there a floppy version of
a virus checker, that works from a WIN 98 startup disk. My friend will also
give me the original WIN XP CD tomorrow. Anyway, the machine is a not too
old HP P4. I also have to wait 5 minutes to be able to turn the machine on
again. Probably a safety item, but a pain in the back, if you ask me. Any
help is appreciated. I went on Google, and looked for any help, the only
thing I get is places that wants to send pop-up's ..............Peter