PC Hardware

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computer shuts down by itself

by kane / January 22, 2004 8:48 AM PST

having problems with computer shutting down by itself at anytime.any ideas to fix.
thanks

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Re:computer shuts down by itself
by j0enoonan / January 22, 2004 8:55 AM PST

it could be faulty power supply

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Power Sags / Brownouts
by Angela / January 22, 2004 10:56 AM PST

You could be experienceing power sags or brownouts which cause the Power Supply to react as though the power is out. This will lead to damage to the power supply and possibly your motherboard in time. If any of your appliances trip your main circuit or if you go through light bulbs quite a lot this could be an indication of sags.

If this is the case and it isnt just a bad Power Supply, then I would recommend investing in a UPS or and SPS to protect your computer from damage.

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Re:computer shuts down by itself
by JMarchi / January 22, 2004 10:32 PM PST

You give us no clue as to what you have, how old is the system, what processor, what version of Windows. How long did it work properly?

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..
by walkman007 / November 23, 2012 10:30 PM PST

i have get the same problem as you,my computer shut down suddenly when i was using it for important works.it's really frustrate me.

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Things to check
by wpgwpg / November 23, 2012 11:50 PM PST
In reply to: ..

Download SpeedFan from http://www.download.com and check your temperatures. If the cores are under 50 degrees C, you're OK, if over 65, you have a problem, in between bears watching.
Get your antivirus program up to date and boot into Safe Mode. Note that some viruses can hide themselves from your antivirus program in normal mode, so you really need to scan in Safe Mode. To get into Safe Mode when you first power up, hit F8 about once a second until you get the menu and select Safe Mode. Then run a full system scan.
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You can check for corrupted system files. Open an administrator command prompt and run SFC if the above doesn't help. Click START, then type CMD in the search box, right-click CMD.EXE and click Run as administrator. Then from the command prompt type sfc /scannow.
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Finally if all else fails, you can check the rather cryptic system event log. To do that click Start -> Control Panel -> Administrative Tools -> Event Viewer. Once in Event Viewer click on the system log and scroll through the entries looking for those flagged "error" to see if you can find hints as to where the problem could be.
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When you get your system back in good working order, I urge you to back your system up to an external hard drive and make regular periodic updates to it.
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I hope this helps. Good luck.

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