Computer Shuts Itself Off

OrbitzXT · Aug 15, 2011

I have a somewhat older pentium 4 computer in my office here that seems to be randomly shutting itself off. When I turn the computer back on, immediately following the POST it says "Press <F4> to run Setup", pressing F4 brings me into the BIOS. I checked the temperatures and it was about 54C which I believe is okay for a P4? When I tried to exit the BIOS it just hung there and I had to turn the PC off. When I turned it back on again, it booted into Windows fine.

This only just happened this morning, so I don't have a long enough time period to see if this problem will repeat itself or was just some fluke. I noticed the fan on the power supply is a bit loud, it's always been like that though since the year I've been here. I'm considering replacing it as a precaution and to make the PC quieter as well.

Are there any particular tests I should run to check for issues? Or should I just wait and see what happens and replace the power supply?

JrRacinFan · Aug 15, 2011

Quick test for overheating: keep the side panel off and see if it still occurs. If it still does it I would be concerned about the power supply.

Fourstaff · Aug 15, 2011

JrRacinFan said:
Quick test for overheating: keep the side panel off and see if it still occurs. If it still does it I would be concerned about the power supply.

+1 to this

Also, check if the heatsink is loose, I have heard problems with heatsink mounts snapping. Well, just check the parts in general.

micropage7 · Aug 15, 2011

if it repeat in same time and it needs a time before it can turn on i guess its coz of heat
check the hsf and fan too

OrbitzXT · Aug 15, 2011

It's been about two hours since the incident and no issues. I don't think it was heat related. P4's are fine in the 50C range right? Does Newegg sell power supplies that work for older P4 motherboards? I haven't shopped for one in awhile and not sure if they're any different than the ones used today.

scaminatrix · Aug 15, 2011

You'll be fine looking for a P4 PSU; they are the same as todays. it's when you go pre-2001 that you have to start scouting.

I'd run Memtest for a while; sound's like RAM might be on it's way out. And memtest is easier than troubleshooting mobo, PSU and CPU so I go for the easiest one first :laugh:

OneMoar · Aug 15, 2011

I have had P4rescHott cores up to 75c sustained its not good for them but it won't kill it ... at least not right away

Jetster · Aug 15, 2011

Why are you guys pointing to the temps. 54c is fine. Nothing wrong there. The P-4 idle hot and max is 72c. Your problem is not heat related unless theirs something you not telling or I missed something in the read

Its probably going in to suspend mode and hanging coming out. Very common in XP. Go to you power options and uncheck Hibernate or suspend and sleep

I hate old P-4s they have issues. I would format test the HD before I would buy a new PSU

OrbitzXT · Aug 15, 2011

Jetster said:
Why are you guys pointing to the temps. 54c is fine. Nothing wrong there. The P-4 idle hot and max is 72c. Your problem is not heat related unless theirs something you not telling or I missed something in the read

Its probably going in to suspend mode and hanging coming out. Very common in XP. Go to you power options and uncheck Hibernate or suspend and sleep

I hate old P-4s they have issues. I would format test the HD before I would buy a new PSU

I actually have Windows 7 installed on this PC, runs well enough. It's a fresh installation from about 4-5 months ago. I also changed all the power options to always stay on, except the monitor which goes off after 30 minutes.

Jetster · Aug 15, 2011

Good

Run HDtune test your HD

http://www.hdtune.com/download.html

OneMoar · Aug 15, 2011

Jetster said:
Good

Run HDtune test your HD

http://www.hdtune.com/download.html

uh no ...

either the psu is cutting out or the motherboards thermal saftys are kicking in

OrbitzXT · Aug 15, 2011

I'll test the HD but I don't see why a hard drive would cause a hang in the BIOS.

OneMoar · Aug 15, 2011

OrbitzXT said:
I'll test the HD but I don't see why a hard drive would cause a hang in the BIOS.

don't bother

Jetster · Aug 15, 2011

OrbitzXT said:
I'll test the HD but I don't see why a hard drive would cause a hang in the BIOS.

Good point....battery?

Fourstaff · Aug 15, 2011

Jetster said:
Good point....battery?

Would point to clock issues.

OneMoar · Aug 15, 2011

I would bet a 100 bucks that the problem is the psu or the motherboard
also what logic makes you think that cmos battery or the hard drive would cause a hard power down :banghead:

xBruce88x · Aug 15, 2011

a video card can cause this sometimes too. I had an old i740 agp card, when it got too hot the system would hard reboot

OneMoar · Aug 15, 2011

hes talking about a HARD POWER OFF
rtfp

xBruce88x · Aug 15, 2011

well it also caused it to shut off at times too....

anyhow... about the psu fan. if its making really loud noise its probably not working as well, if it sounds kinda like a grinding noise. the motor could be full of dust or the soft magnets in the motor are worn from heat. I'd go ahead and get a new psu. if you wait and see what happens with it it could die and take the rest of the system. are there any high pitched noises coming from the psu?

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Computer Shuts Itself Off

OrbitzXT

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JrRacinFan

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