computer turning itself on and off

[Steven S. Kurz]

Unfortunately there are many problems this could be:

Hard drive: test the hard drive with a manufactorers disk
from the manufactorers website.
Memory: memory often causes inaccurate problems, use a
memory tester to test problematic memory, or use process
of elimination by pulling memory out one by one.
Virus possibility or patch needed: many times viruses
cause reboot issues, update virus definitions and run
virusscan. Also there are many patches out there that
stop issues with reboots.
Power surges or spikes, make sure your on a good outlet.
Make sure all cables on all hardware inside and outside
the computer are tight. Make sure no wires are frayed.

Best bet is to take it to a professional since they will
no what to look for. Good Luck@!
>-----Original Message-----
>my computer constantly turns itself on and off. In the
>middle of either typiing, or online it will suddenly
shut
>down and may not come back on by either the reboot or
>on/off switch. I often have to turn it on and off from
>the back and keep pressing the on/off button until it
>reboots. it then sometimes says checking Fat 32. i
have
>had a new motherboard installed, formatted the c drive
>and reput xp back on but still it does it. i thought
>maybe it was the monitor as that seems to switch off
>first but this has been replaced too. i really would be
>grateful for any advise from anyone as to how to fix the
>problem
>thanks
>.
>