General discussion

Locked

computer shuts down & reboots on its own

By wordmaster1 ·
I am working on an old computer, 98SE,AMD 300, 256mb RAM,
CD burner, 10 gig HD. Plenty of room left on the HD. Everything works fine until it suddenly powers off, then reboots. It is subject to do this with nothing running, while starting various proggies, while running various proggies, etc. Then again, it may run all day with no problems. No consistent way to make it happen, no new software loaded, Adaware, Spybot S&D, and AVG have been run to be sure (or at least fairly sure) it is clean. Does it with nothing hooked up but a monitor, keyboard and mouse and nothing running but system stuff, explorer and systray (use EnditAll, not just ctrl-alt-del). Any help appreciated.

This conversation is currently closed to new comments.

18 total posts (Page 1 of 2)   01 | 02   Next
| Thread display: Collapse - | Expand +

All Comments

Collapse -

by willcomp In reply to computer shuts down & reb ...

My primary suspect is the power supply. Try swapping it out and see what happens.

Dalton

Collapse -

by wordmaster1 In reply to

Poster rated this answer.

Collapse -

by ghimpe-- In reply to computer shuts down & reb ...

Week power supply or overheating.

Try another PSU (like sugested above) and monitor your temps.

Collapse -

by wordmaster1 In reply to

Poster rated this answer.

Collapse -

by _Christian_ In reply to computer shuts down & reb ...

You may also have a poor quality mains supply (this is my case here), in which case the only solution would be to add an UPS between the mains and your computer.

One way you can figure it is if the ligth bulbs in the same room tend to shift in brightness (they periodically do, here, in central London).

A surge filter will definitely not protect against this type of mains defect.

The UPS worked a charm for me.

Collapse -

by _Christian_ In reply to

I just thought about another possibility.

You mentionned an old PC.

The actual energy capacity of computers PSU (in watts) has evolved over time to match growing need for power from modern devices.

Some recent graphic cards required power supplies rated 350W or more (modern Nvdidia, I know for a fact).

This is explicitely mentionned on the box and the manual, but you may have to look for it.

So it may just be that your power supply is under rated for your current power needs.

If this is the case, the only way is to replace your power supply with more recent one.

Collapse -

by wordmaster1 In reply to

Poster rated this answer.

Collapse -

by Blackcurrant In reply to computer shuts down & reb ...

Hi

One other thing you may wish to check is that the latest updates have been applied from Windows Update. There was an issue quite recently where one of the previous updates released caused this behaviour. Microsoft fixed this last month.

Run Windows Update, make sure all the critical updates are installed, and see if it cures your problem.

Good luck

Collapse -

by wordmaster1 In reply to

Poster rated this answer.

Collapse -

by rngara In reply to computer shuts down & reb ...

try changing your power supply, if that doesnt work then its definately your proccessor

Back to Windows Forum
18 total posts (Page 1 of 2)   01 | 02   Next

Related Discussions

Related Forums