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