Question about Dell Dimension 4700 PC Desktop

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At Start up, beeps several times, won't boot.

PC beeps several times, Fan gets louder and faster and PC never boots. The monitor would stay black (not even blue). Its intermittent, and occasionally starts like there was never a problem. Other times, just beeps and beeps until I turn it off (with the fan screaming along).

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Re: At Start up, beeps several times, won't boot.

This could be an overheating processor problem,dependant on the motherboard and what the beeps mean. The fan speeds up to cool it down, there may be dust collected in the heatsink on top of the processor, check it and gently brush off dust. Check that the vents on the side are atleast 6 inches clear of anything for good circulation. To see if it is an overheating thing, remove both sides of pc and run it in an open space to see if the same thing happens. While you have the side off just check your memory and other peripheral cards are all seated correctly and not loose.

Posted on Jan 22, 2007

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Re: At Start up, beeps several times, won't boot.

I had the exact same problem with my wife's computer. I used my air compressor to blow it out and it works good as new. I must say I am surprised at what a low tolerance this Dell computer has to dust.
At first I did not think it would work for me because there was so little dust in the machine and hardly any on the heat sink, just a light coating. But after I blew it out it solved the problem.

Posted on Nov 23, 2008

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Re: At Start up, beeps several times, won't boot.

I had this problem with an Optiplex 755, 6 beeps when I tried to turn the machine on and no image was shown on the screen.
I first thought it could be the video card, but I replaced and the problem continued to happen. Then I recalled that this problem started after we upgraded the memory for a 4GB RAM.
I noticed that after I removed one of the memory cards, the noise stopped. As posted on Dec 01, 2007, it might be a faulty memory.


Posted on Feb 03, 2010

Re: At Start up, beeps several times, won't boot.

Blow the dust off the heat sinks and remove one memory card then give it a try .. replace and romove the other one.. It is likely a faulty memory card.

Posted on Dec 01, 2007

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