Hi all,
Hope you all can help with this. When the workstation (HP Z420) boots up it gives an error message 511: CPU FAN not detected. The fan is turning at full speed and seems to work ok. CPU temperatures are around 40 degrees when idle, so it seems the fan is doing its job.
It is, however, a bit annoying that it is blasting at full speed the whole time so i wanted to fix it. Unfortunately i found out now that the warranty has expired last October (2016), even though the problem is already ocurring for more than a year.
I have tried to update the bios to the latest version, reset the bios using the cmos reset button on the motherboard and i have reseated the cpu fan and the cpu fan cable. All to no avail.
Are there any other options i can look at?
Thank you in advance for your help.
Kind regards,
Rens