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Computer auto restarts without warning

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#1 sijie123


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Posted 21 April 2010 - 08:10 AM

Hi, my computer (Dell Inspiron 640m) recently kept restarting by itself. At random intervals, it would just restart itself without showing the "windows is shutting down" display. Instead, it will just give me a blank screen and auto restarts. I rarely encounter blue screens that shows hardware malfunction. Currently, I have locked down my targets to the HDD, the RAM or the FAN. I am not sure which is the one at fault but a hardware test yields no errors. Also, when i run chkdsk (up to once every week or so), i usually get errors and that chkdsk cannot continue. Can anyone advise me about the reasons for automatic restart?
I am running Dell Inspiron 640m on Windows XP home edition SP3, have a 1GB DDR2 ram and a 80GB SATA HDD. My computer is 3 years old.

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#2 computerxpds


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Posted 21 April 2010 - 11:12 AM

Download and install SpeedFan: http://www.almico.com/sfdownload.php

Report back with your system's temps.

post a screen shot of the spped fan window. and post it.
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#3 Broni


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Posted 21 April 2010 - 11:36 AM

when i run chkdsk (up to once every week or so), i usually get errors and that chkdsk cannot continue

Run hard drive diagnostics: http://www.tacktech.com/display.cfm?ttid=287 (or http://www.bleepingcomputer.com/forums/topic28744.html)
Make sure, you select tool, which is appropriate for the brand of your hard drive.
Depending on the program, it'll create bootable floppy, or bootable CD.
If downloaded file is of .iso type, use ImgBurn: http://www.imgburn.com/ to burn .iso file to a CD (select "Write image file to disc" option), and make the CD bootable.

NOTE. If your hard drive is made by Toshiba, unfortunately, you're out of luck, because Toshiba doesn't provide any diagnostic tool.

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