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CPU Fan run in full speed

Tags:
  • CPUs
  • Components
Last response: in Components
October 15, 2013 8:22:33 AM

HP Compaq dc7800 small form factor
I have a problem with the CPU Fan it running in full speed all the time ...
I read that I Should update my bios I do that but nothing happened
I cleaned the fan and nothing happened
I changed the fan with a new one and nothing happened
I try with SpeedFan but it can't detect the fan ...
so please where is the problem in this case !!!!

More about : cpu fan run full speed

a b à CPUs
October 15, 2013 8:31:36 AM

Does Speedfan show your CPU temperatures? If so, what are they?

Casey
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October 15, 2013 9:13:56 AM

Yes it shows CPU temperatures, but in : configuration -> fans I can't see any fan !!!
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a b à CPUs
October 15, 2013 10:10:49 AM

Programs like Speedfan seem to have trouble with detecting fans, and sometimes even temperatures, on preassembled computers, like your HP/Compaq or my Dell laptop.

However, my concern is whether your computer is just dealing with a software issue and the fan running at full speed is a symptom, or whether it thinks it is (or may even actually be) overheating, which will also run the fan at full speed.

Let's just play it safe and make sure first.

Casey
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October 16, 2013 3:24:25 AM

For the Second concern there isn't any overheatingة CPU Usage doesn't use more than 30% for the most time.
For the first concern maybe true, but how I can know who's causing the fan trouble ?!

is reinstalling the OS can help ?
Note: when I boot from ‘buntu live CD the problem still Exists !!!
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