I m a big fan of dell a dell user and not an employee.
Dell optiplex cpu fan error.
If you have an optiplex stating its model number and size speeds troubleshooting.
All of the fans inside the system are running normally.
Dell optiplex 755 removing cpu fan i would like to suggest you please don t go yourself to check that because it may harm the system if any wrong thing happens.
Air vents may be located in various places depending on the pc model.
This forum is mainly user to user with occasional moderation or additional knowledge by a rockstar or dell employee.
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We ve swapped the cpu fan and the front case fan from other working optiplex 3010 s and the message still appears.
Use a can of compressed air to remove dust or debris from the air vents dust filters if any and cooling fan fins.
Turn off the pc.
Cleaning the air vents on your dell pc.
There is no fan on the hd but yet we get the hd fan failure error and system fan at start.
New optiplex 390 fan failure message we believe it is a sensor error.
Check the air vents on the pc for dust or debris.
Better you go to the dell service center with your purchase bill.
It does not seem like the motherboard is sensing the fan s properly.