XP crashes that do not show in event log

[Guest]

For approximately six months now I have been having intermmitant crashes in
my business/home computer. I cannot, under any circumstances, duplicate the
crash. I just have to wait until it happens whenever it wants to. I have
changed the motherboard and memory sticks to identical models of the
originals. ASUS P4S800-MX SE and 1G of DDR 400 memory. Intel P4 3G CPU.

Recently through this forum I have found out about reading event logs that
may indicate what the problem is. Although I do not pretend to understand
what they tell me I was planning to lodge the latest event on this forum and
ask for an explanation from you ladies and gentlemen.

The latest crash happened this evening at 2150hrs 15/4/06 Australian Eastern
time while I played a game of freecell. I dutifully waited for one hour
before restarting the machine while I trawled the net on another machine.
The evnt log showes nothing whatsoever from 1811hrs until the machine was
restarted at 2251hrs. I am befuddled!!!

Please can anyone offer a solution?

 

[Kerry Brown]

What happens when it crashes? Does it shut off or just stop responding? Does
the mouse still work? Did you check all the logs with the two most likely to
show an error being System and Application. The most common cause of crashes
with nothing in the event logs is a defective power supply or an overheating
CPU or motherboard.

 

[Guest]

My computer just resets. I have checked both application and system logs.
The system one has only ever recorded normal events.(No warnings or errors)
The application logs shows errors and warnings where My fax did not work or
it failed to sign me up properly. The motherboard is the second and the
memory stick is the third tried. hmonitor does not appear to show overheating.

 

[DL]

But what about the pwr supply? any chance you could swap it out?

 

[Guest]

That will have to be my next attempt at a solution. I do have another
computer that I can "borrow" the power supply from.

 

[Kerry Brown]

My guess would also be the power supply.

 

[Guest]

My thanks to those who replied. I have now changed power supply and will run
the machine continuously until it either crashes or passes the probable time
period for a crash.