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Hi yesterday my pc started to do something strange. It just switched itself off then when I restarted the screen was just gray and my mouse pointer was huge but there was nothing to click on. I restarted again and all was fine. It did this about 3 times. Anyone know what might be going on? cheers. Paul

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Could be a multitude of things. I would start making sure it's not a virus. Download this (free):-

http://www.malwarebytes.org/mbam.php

 

and perform a quick scan. If there are infected files, then you can get it to remove them for you.

 

As antivirus programs go, I prefer Avast (free) for real time protection. Also Microsoft SEcurity Essentials is getting

some good reviews.

 

If it's not a virus problem, we can then look at other things.

 

 

If all else fails, kick them where it hurts and SOD'EM;)

 

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If it's found 3 infected items on a quick scan, then you would be wise to do a full scan now (takes over an hour though).

 

 

If all else fails, kick them where it hurts and SOD'EM;)

 

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Several Reasons could be the factor...

 

1) Your Hard Drive/CPU/Video Card are Over Heating, and your computer is shutting off for SAFETY. Solution: More fans/Cooling of some sort

 

2) You are pushing too much hardware for the power supply you are using...I.e. you have a 300 watt PSU and you need a 350 or 400, depending on what hardware you are using. Solution: Get a bigger Power Supply

 

3) Something on the motherboard is shorting out, causing your computer to shut off. Solution: Check all connections and make sure nothing is touching the motherboard, that shouldnt be.

 

 

If all else fails, kick them where it hurts and SOD'EM;)

 

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Between 70-90 degrees is quite normal for most processors.

 

http://www.computerhope.com/issues/ch000687.htm

 

try this. Go to control panel, system,startup and recovery,settings, and uncheck the box auto restart.

 

hopefully you will receive an error message and a dump file before the next restart.

 

 

If all else fails, kick them where it hurts and SOD'EM;)

 

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If all else fails, kick them where it hurts and SOD'EM;)

 

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Took a look inside last night. Nothing touching the motherboard. The psu is 250 watt. I'm obviously not an expert but this seems quite low. Though I have not upgrade or added anything to my pc and I've had it a couple of years now without any problems. Now, the cpu was totally covered with dust. It was so thick couldn't see the fan. I got the hoover on it and got as much out as I could. It's now running at 48-49 degrees. I'm just waiting to see if it will switch off again.

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Sounds like its running a bit hot, it will shut down at certain temperatures, I'd try and get it a bit cooler, have a look at the main cpu fan/heatsink, they are often full of dust. You can buy better fan/heatsink assemblies quite cheaply, you just need to know the cpu type.

 

Also maybe invest in a push-pull case fan arrangement, one blowing, one sucking, Maplin do a good range, although avoid their own brand cheap ones as they are rather noisy, keeping everything cool will increase the life of all your components and is a must if you are going to do some 'overclocking'.

 

Have a look in Event Viewer > System after a crash/reboot this may give you the reason.

 

Andy

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Sounds like its running a bit hot, it will shut down at certain temperatures, (Have a look at warnings in Event Viewer for clues), I'd try and get it a bit cooler, have a look at the main cpu fan/heatsink, they are often full of dust. You can buy better fan/heatsink assemblies quite cheaply, you just need to know the cpu type.

 

Also maybe invest in a push-pull case fan arrangement, one blowing, one sucking, Maplin do a good range, although avoid their own brand cheap ones as they are rather noisy, keeping everything cool will increase the life of all your components and is a must if you are going to do some 'overclocking'.

 

Andy

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Well it seems more stable now. No switching off and it just feels a bit quicker all round. Also, I can hear the fan again. Never noticed that I couldn't before. Thank you so much for putting me on the right track. cheers! paul

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dust cleaning should have been the first suggestion sod 'em

 

esp when hot weather hits

 

dx

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PSU is low wattage tho for a dual core.... if you do things that use a lot of power (Burn CD's for example, where the hard drive and CD are both running) whilst also playing a game (that pushes the graphics card) it may cut out (or go BANG even)

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locutus - really? so it would be worth upgrading the psu anyway? I was planning on upgrading my graphics card soon so I'm thinking it would be wise to upgrade the psu before I get a new graphics card?

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Upgrading the graphics card.... I take it you like playing games on your PC. Personally I'd upgrade from the 250w PSU at the same time as may high spec graphics cards need a dedicated power feed direct from the PSU (and I doubt a 250w PSU will have one.)

 

I've built budget PC's for years, and I havn't seen a PSU below 300w in a long long time, and never on a dual core system. Are you sure this is only 250w?

If in doubt, contact a qualified insured legal professional (or my wife... she knows EVERYTHING)

 

Or send a cheque or postal order payable to Reclaim the Right Ltd.

to

923 Finchley Road London NW11 7PE

 

 

Click here if you fancy an email address that shows you mean business! (only £6 and that will really help CAG)

 

If you can't donate, please use the Internet Search boxes on the CAG pages - these will generate a small but regular income for the site

 

Please also consider using the

C.A.G. Toolbar

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Apologies. Just double checked the psu - Input 300w, Max output 250w. Does this make a difference? I have an old xp tower unit from about 5 years ago. The label on that psu says ATX-500w. Is this okay or would I need something more recent? thanks.

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