shutdown help

[useless1]

hope i postin in the right place ... well my problem is that every now and then my pc just shutdowns with no warning or anything then i have to leave it for about a minute before it turns back on and still no error warning it happens at anytime when no ones on it and when were on it had it formatted and still no luck ... thanks for any help

[mike]

Hi Useless,

 

It sounds like your computer is overheating, or your Power Supply Unit (PSU) is dodgy.

 

How long is your PC turned on (on average) before it shuts down?

Is it roughly the same amount of time each time?

Have you any fans in the computer?

[KenB]

You can also try the following:

 

Switch off at the wall first - but leave the plug in to maintain the earth connection.

 

Check that the case vents are clear and not clogged with dust.

 

Open up the case and inspect for dust. If there is any blow this away with a can of compressed air. Do not be tempted to use a vacuum cleaner as, although you still have an earth connection to your M/Board, the vacuum can produce large amounts of static which can damage sensitive ICs.

 

With the side off ( be careful here ) switch back on and boot up.

 

Are all of the fans spinning fast?

 

if you leave the side off - does the "shutdown" problem still occur?

[Dalo Harkin]

Have you been messing in the BIOS at all - if the power cut out then it could have reset the BIOS also, there are temperature settings in the BIOS and they control the CPU temps and basically if it gets too hot, it shuts down to avoid damage to the CPU - but you can lower/higher the variance depending if it is accurate of not -

pop the CMOS battery out (watch battery) at the bottom of the Motherboard and leave it out for 2 mins and then reinsert it and see if its ok then, the battery could have died and that would cause the BIOS to not hold its settings and I have seen this trip a PC out a few times.

[useless1]

thanks

 

thanks guys tried the clean out there was lots an lots of dust so now all clean i will run it for the night and let you know how it went tomorrow ... thanks for the quick replys

[useless1]

thanks

 

yessss going all good since last night .. and many thanks for the help i'm sure i be posting again sometime ... now i need to learn more about my computer .. and thanks agian

[Dalo Harkin]

Glad its all sorted - :)

 

Feel free to ask any other questions you may have