Win 7 keeps freezing

[Withless]

Every 20 minute or so my computer just completly locks up and I can't move the mouse or use the keyboard and the sound just keeps repeating over and over again

running win 7 on 3 year old computer have not changed any hardware since I bhought it. have the latest updates for win 7 and drivers for my hardware

really not sure what might be wrong.. DxDiag says everything is running just fine as far as I understand it. attached it if you wish to have a look

anyone have an idea on what my problem might be?

should note I recently reinstalled my copy of win 7 removing all previous data just a week ago and the freezing started maybe 1-2 days ago. before I reinstalled I had a similar problem the computer would not launch win 7 it just froze showing a black screen with a white _ on it but after a few restarts it would solve itself. back then once I had started the computer it would actually run without problems

 

[Tmagic650]

This may be a power supply or memory issue... What is your power supply's make and wattage rating? Are you running 3GB total memory?

 

[Mark56]

I suspect this may be a hard drive problem so start with running the manufacturer's diagnostics.

Identify the make of your hard drive and then use one of the links below to get the manufacturers diagnostic for ISO CD. Burn the image file to a CD, boot the PC with the disc in the drive and run the diagnostics. You first need to set the CD drive to 1st in the boot order in the Bios setup.

If you do not have an image burner use this free software to make the CD.

http://www.isoimageburner.com/



ExcelStor: http://www.excelstor.com/eng/support.php?sub_id=3

Hitachi/IBM: http://www.hitachigst.com/support/downloads/

Samsung: http://www.samsung.com/global/business/hdd/support/downloads/support_in_es.html

Seagate, Maxtor & Quantum:http://www.seagate.com/www/en-us/support/downloads

Western Digital:http://support.wdc.com/product/download.asp?lang=en

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Toshiba Fujitsu: http://sdd.toshiba.com/main.aspx?Path=SoftwareUtilities#diagnostic

Please provide the model number of your drive if it is Toshiba Fujitsu for further instructions, this does not run on Windows 7. I would suggest the use of the diagnostics from the Seagate link as this will work on all makes of drive and on any OS.

 

[Mark56]

Ooops, sorry Tmagic our posts crossed.

Anyway, Withless, now you have more than one opinion to work with.

 

[Tmagic650]

No problem Mark56,

I was thinking hard drive, but this:
"but after a few restarts it would solve itself. back then once i had started the computer it would actually run without problems"...
makes me think power supply

 

[Mark56]

You may well be right, funny thing is when I read the line you have quoted my first thought was early signs of hard drive failure. That's the trouble with PC's, the same symptom can have multiple different causes.