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No Signal during boot, fan very loud


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#1
bondy

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Hi,

I have a Dell Dimension 5000, Windows XP, Intel Pentium 4, which i got second hand some years ago. Some time ago the PC began to run really slowly, and intermittently the fan becomes very loud, as if the machine wants to take off. This has been gradually getting worse, to the point where i have to reboot regularly. I have virus scanned, with AVG, didn't appear to be any problems.

I decided i would attempt to wipe the disk and re-install XP from scratch. Before that, however, i thought i'd try to give it a clean inside, so opened the case and brushed away a good few years of dust from the motherboard, fan, graphics card, power pack etc. Closed the case, and now the fan starts up extremely loudly, there are six, what i would say sound like warning, buzzes (can't locate exactly where from), and no signal to the monitor.

The disk appears to be spinning, the DVD-ROM drive works, and the USB ports work (checked that by connecting a portable drive - the light goes on). The monitor is working.

Any ideas?
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#2
Macboatmaster

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there are six, what i would say sound like warning, buzzes


It very much depends on how the six are made
See this
http://support.dell....sm/adtshoot.htm

It is not for your exact model but on most Dells the diagnostic lights and beep codes are the same, as the beep codes are generated by the BIOS


Also I would reopen the case and check carefully that the components especially the ram and the graphics have not been dislodged with your brushing.

If you need advice on how the ram is secured etc please post back

Additionally on the motherboard is the CPU and below that fan, are the fins of the CPU cooler, you need to check these fins are clean, a soft brush, gently used and a cotton bud are ideal.
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#3
Macboatmaster

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bondy
It is now 12 days since you asked for help and a reply with suggestions was made the same day, as you posted the request.
Would you kindly respond and let us know if it assisted.
If not, you only had to ask and more help was of course readily available.
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