CPU fan problem

asimof

Have you cleaned the dust buildup, from the fan, heatsink cooling fins, the air intakes in the front panel and from inside of the case recently?

Bev.


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HI,

Yes i have used an air blower to remove all dust from around the cpu and from within the case. Still the same.

asimof

Have you checked the front air intakes under the lift up front panel and the heatsink cooling fins under the green plastic shroud?

Bev.


===================================================
Please don't send me questions about your system by DCF Messenger.
Post the issue in the appropriate Board, where they will be answered.

Fast fan from a cold start can't possibly be dust buildup.

 

What you have is motherboard capacitor failure. It prevents booting, prevents BIOS from loading the fan control constant.  After several tries, it may relent and boot.  Eventually it won't.  Be prepared to replace the motherboard, or the entire system.

If you have capacitor problems and are handy with a soldering iron make an online search, such as "replace dell motherboard capacitors".  Apparently, this is a relatively common problem as there are sites that will sell you the proper capacitors, tell you how to replace them, and some will even replace them for you for a fee.  One site is http://thecapking.com/index.html.  Pictures of bad caps can be seen at  http://www.monkey.org/~blandoon/gfx/caps/.

 

Fortunately, I have not had this problem, so have no personal experience.

 

Jim

Hi,

I have looked over all the capacitors, and all look perfect. Any other ideas as to what it could be.

Thanks

Failed capacitors do not necessarily present themselves visually.

Hi,

So i will try removing all cards and memory,  and see what happens from their. Are their any other test i should be doing aswell??

 

Thanks

Removing peripherals is the last test before MB replacement.  Memory seldom kills power, but anything can happen.

If you have disconnected everything except the motherboard, that is the only possible remaining source of the problem.  Besides the processor itself, which has a much lower failure rate than Dell motherboards, and is VERY expensive to replace on speculation.

Hi,

I have removed ALL cards and memory, and disconected the DVD/CD and HDD drives. The problem continues, and their are no post beeps or diag lights.

 

Advice please.