That would indicate overheating ... do the usual checks = blocked vents, dust clogging the CPU heatsink etc ..
Then the less likley, such as a loose fan cable, loose CPU (or other) heatsink etc. (you might want to reseat the CPU heatsink ...)
Still no luuck ? Well, it's time to start unplugging things .. reduce your system to the minimium, maybe some plug-in card is upsetting things ..
If 'none of the above', then it's possible the power-supply is sending incorrect voltages or the motherboard has failed in some way (eg the temprature sensor under the CPU chip)...
PSU's are cheap, so replace that before replacing the motherboard
SOURCE: CPU cooling fan
Hi...you can press the F2 key to enter setup...and scroll down until the fan is highlited...hit enter and then F10 to save and exit.This tells the computer its OK.
you should have plugged the fan in the same pin port the old fan was in. Usually only 1,.
If the new fan is not from dell..it may be faster and noiser..or it may be faulty..if you bought it locally you may try to return it.
The purpose of the fan of course is to remove the hot air from the CPU to keep it from overheating. If this fan does it it is most likely ok.
Hope this helps..
Squipps
SOURCE: CPU Cooling
as long as the holes match up and you vacum(not blow out) the cooling fans you will be fine
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