HP Z840 Worksration fan assembly run full speed
I have a HP Z840 Workstation.
From time to time fans assembly will run on full speed that until I will open the chassis door and then the fans speed will go to normal again.
Any Idea what cause this issue and how to fix this problem?
I would to share with you the solution for my fan problem.
I tried many things and search in many forums and things just got worse CPU fan just kept going fast speed all the time.
I even set BIOS back to default 2.54 but nothing helped.
Until I came across similar problem at HP support forum.
Unplug power core remove CMOS battery wait 10 minutes install battery again fix time and date in BIOS.
After installing back the battery everything back to normal so far no problems very happy.
Here is the link: