Your dell pc may contain several fans to keep the internal components cool.
Dell laptop processor fan not working.
If you ve connected it elsewhere the fan may run when the computer is turned on but it won t be sufficiently cooling the cpu which is its main purpose.
Dell spare parts at 800 357 3355 have your service tag when if you call.
Hi tiller112 thanks for posting.
I have a problem with my latitude e7450 cpu fan it seems to be working fine up until one day i spilled some coffee on the keyboard then i had to disassemble it then i cleaned the keyboard and have reassembled it.
If you have run full system diagnostics from f12 and the same error is displayed then you are probably looking at a bad fan.
If that doesn t solve the issue the mainboard is the faulty part.
Processor fan not working.
Check your cpu fan s location.
It should be connected to the cpu header on the motherboard.
The fan will run at optimized performance automatically when there is a change in temperature when it reaches a set temperature.
If the fan doesn t come on under diagnostics or windows both and the fan is known good spins freely by hand then it s a mainboard problem.
I hope this will work.
I don t recommended this because you can easily destroy your pc.
If you do that you will disable fan controll.
Inspiron 1520 laptop cpu fan not working if the fan does come on under diagnostics f12 at powerup but not under windows then it could be a software issue.
The same for this if you mess it up your problem not mine.
Please perform a systems diagnostics by pressing f12 at startup or by running dell support assist.
From that point the cpu fan no longer works when i am using the ope.
Replacing the fan is the first thing and the least expensive to try.
If the fan is not working then i have to assume the system is shutting down as the cpu will overheat.
If you ve installed the cpu fan yourself ensure that it is installed in the correct location.
Lint and dust accumulation prevents air from flowing around the cooling fins and causes the fan to work harder.
So your fan is always running at 100.
Desktop pcs have more than one fan processor cpu dedicated or discreet video card gpu power supply psu and one or more chassis case fans.