Having problems with your E-Machines eMachines Desktop PC ?

The emachine w5233 shouts down after about 2 hours some times less it just turns off i have ran virus checker cleaned pcu out changer power cord pluged into different outlet i had a breif power outage backup power came on computer after this is when the problem has started i am running windows vista premiun computer is about three years old


Answers :

\015\012Taking into consideration it works for some time before it fails I suspect a thermal issue. I would pay particular attention to the CPU cooler. If you don't feel confident doing this yourself its a cheap repair at a good computer shop.
\015\012
\015\012Your fan speeds up and slows down in response to temperature inside the computer. More so the CPU.

I would suggest getting a can of compressed air made for computers

take it outside, take of the side and blow all the gunk out of there, Really go to town around the fan (you might want to wear eye protection)
While you are in there just check that the CPU cooler itself is not loose

If it is it will have to be re-seated.

If it needs re-seating don't just take it off and put it back on as that might make things worse with your temperature problem they have to be cleaned and new thermal grease put on ($2-5)

DON'T remove the CPU just the fan/cooler assembly.

You must clean both the surfaces without scraping anything off. Use isopropynol alcohol and cotton bud sticks until both surfaces are clean, you can use your finger nail to scrape harder residue if you wish but nothing else.

DON'T pour the alcohol over the CPU

Now apply some new thermal grease (most computer shops have it)
\015\012
Be careful about how much you put on
\015\012
Here are
some basic instructions
I would suspect a power supply problem. Take the cover off and look through the power supply for capacitors that are bulged out on top. When they do this they start dropping their value and cause voltages to fluctuate. The values of the capacitors are marked on the side. Be patient and use a good soldering iron. Thanks for using fixya.

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