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Computer appears to go into standby when it shouldn't

Posted on 2006-11-24
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Last Modified: 2008-01-09
Hi there. I seem to have a problem with my current system and I'm trying to get some ideas on troubleshooting. Here are the symptoms:

While working in Windows, the machine will freeze (very briefly, sometimes it's not even noticeable) and then the monitor will go black, and then a couple seconds later, the monitor goes into power save. At this point, there is nothing that can be done to revive the system, and I have to force a restart.

Now... this happens at any given time (totally random), sometimes right after I restart... sometimes after I've been using the computer for 20 minutes or 2 hours. It happens when I have no applications open... or when I just have a game open... or just one application... or I'm just browsing the net... even sometimes it happens when the system is already in standby (so I just can't wake it up out of standby). There doesn't seem to be any common denominator pertaining to software.

Things I have already done:
Replaced the video card
uninstalled old video card's drivers and installed new video card's drivers
cleaned all the dust out of the insides
removed all cards and reseated them
replaced the monitor and it's cable

Still does it.....

Any ideas?
Thanks,
James
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Question by:JamesPat
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3 Comments
 
LVL 4

Accepted Solution

by:
KellyCraig earned 252 total points
ID: 18009771
Control Panel --> Display --> Screen Saver [tab] --> Power (Button) --> Power Schemes [tab]
Set the monitor to go off never.
``Hibernate [tab]
Enable Hibernation (if not already)

rename this file
c:\Windows\System32\logonui.exe
to
c:\Windows\System32\logonui-old.exe

reboot
or
shutdown -r -f -t 00
0
 

Assisted Solution

by:Nauj
Nauj earned 248 total points
ID: 18010034
If you are working normally on the computer and it goes into standby or just simply crashes I would say that it is probably a hardware device that is failing. Just to make sure, try booting in safe mode and leave it a while running, if it doesnt crash, then it could be a Windows problem (virus etc), if it still crashes I would say check your hardware.

First Id try checking the RAM. If you have 2 DIMMs of RAM, take one out and test, chances are that 1 of them is faulty. If now, check the harddisk for any errors.
0
 

Author Comment

by:JamesPat
ID: 18011939
Ok, with both of our comments I might have discovered the problem. I switched the settings so the computer would never hibernate while doing so I found that the computer needs 512mb of free disk space to hibernate.

I left the computer on all night last night and it did something different this go around. In the middle of the night I could hear the computer making a funny noise. When I got up it was again locked up and I had to force a restart. After doing so it came up with a boot error. It took about 5 minutes for the system to finally boot to windows. Remembering the 512mb of free space need I went and checked available disk space and it was only 300mb +- a few mb.

I also checked to see if the drive needed to be defragged. Lots and Lots of red!!

So I think I just need to replace the drive with a larger one.

Thanks for your help….

James
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