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I have a dell deminsion 4700c. One day it just turned off and wont turn on?

one night while working on my dell 4700c it shut it's self off. when i tried to turn it back on it started beeping , the fan was run super fast and loud like a roar, and the monitor wouldn't come on. Please help my only other pc is super old and very slow. it has a 80 gig hard drive 512 mb ram , and a processor speed is 2.7

mike mcadams
May 2008

Dell Computers, Desktop PCs Turned Working Shut

If the fan is running and you get a beeping from the computer it might not be the power supply.
Most PC's use Beep Codes to help you diagnose the problem.
Listen to the number and length of beeps and then check with Dell.
The most common beep code indicates your memory has failed.
Post the code on here and will try to help

Barry
May 2008

Not sure but I think you have a slim chassis for your tower. In some of these I have not been able to get aftermarket power supplies to fit. You may have to go to Dell and order one from there. Unfortunately Dell no longer makes a new power supply so you will have to buy a refurbished. http://accessories.us.dell.com/sna/category.aspx?c=us&category_id=7051&cs=19&l=en&s=dhs&mfgpid=166989&chassisid=8227

Jake
May 2008

It sounds like the power supply has gone - it's reasonably easy to replace, but just be careful of where all the cables come from when you remove the old one and install the new one.
Some of the cables to the motherboard are particulary difficult to locate if you do not note where they attach to.
You should be able to get a new power supply at PC world or Maplins.

robert welsh
May 2008

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