We ve swapped the cpu fan and the front case fan from other working optiplex 3010 s and the message still appears.
Dell optiplex cpu fan error.
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Air vents may be located in various places depending on the pc model.
It does not seem like the motherboard is sensing the fan s properly.
Turn off the pc.
All of the fans inside the system are running normally.
I m a big fan of dell a dell user and not an employee.
There is a sensor for temperature on the board and on the power supply.
This forum is mainly user to user with occasional moderation or additional knowledge by a rockstar or dell employee.
Previous rear fan failure press f1 to continue.
Better you go to the dell service center with your purchase bill.
There is no fan on the hd but yet we get the hd fan failure error and system fan at start.
Use a can of compressed air to remove dust or debris from the air vents dust filters if any and cooling fan fins.
New optiplex 390 fan failure message we believe it is a sensor error.
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.
Refer to the user manual of your dell pc.