Error message "CPU Fan is not working" On boot. Press F2 to boot...

[HillTech]

Hi there!

One of our CPUs and monitor gave up most of the ghost. I monitor is hosed, I tested so that is no biggie... But the CPU says that the CPU fan is not running, press F2 to continue boot or it will shut down in 5 seconds.
If I press F2, it boots fine. I have a new HD in the CPU because my boss REALLY needed his computer and I had a spare. So he is set, but I am still dealing with his old one. I have checked the fans on the PS and the MB. BOTH are working. So am I missing something? It is a HP pc 864n Media center.

Thanks!

 

[Didou]

It could be that the CPU fan is connected directly to the PSU rather then on the CPU_FAN connector on the motherboard &/or the CPU fan is spinning at such a low RPM level that the motherboard cannot detect it.

If the CPU fan is spinning & the temps are decent, then you shouldn't worry.

 

[HillTech]

How can I check the temp? That I have not done. The MB is a MS 6577 model.

Thanks again!

 

[jonathanreuter2]

CPU Fan Not Detected

2 Questions: My CPU fan recently stopped working. I had it replaced but the repair shop told me I would not be able to do anything about the error message on startup of, "CPU FAN NOT DETECTED" and that I would have to press F1 each time on startup in order to continue. Is there any way to remove this message?

Also, how do I create a default OS so that I do not have to choose from the list of 2 at each startup? These two issues are quickly becoming an annoying start to booting up my computer.

Thank you.