Enable active heat sink and fan duct with fan.
Fan error dell computer.
Use a can of compressed air to remove dust or debris from the air vents dust filters if any and cooling fan fins.
Once the bios is updated please run the hardware diagnostics follow the steps below.
It can occasionally be used to troubleshoot tech issues and to make sure everything is as it should be.
If you read my issue the laptop suffers from two different issues.
Let us know if there is any error code listed.
Use dell online diagnostics quick test for dell pcs to analyze identify potential issues and offer solutions guidance.
Please shut down the computer press the fn power this will initiate the hardware diagnostics.
When he mentions that the bios tells the motherboard not to send energy power to the fan.
Refer to the user manual of your dell pc.
Check the air vents on the pc for dust or debris.
Turn off the pc.
You may also follow the steps below to reset the bios to defaults and see if it helps.
Open bios then select advanced settings hardware monitor cpu fan.
You can find information about diagnostic tests troubleshooting steps how to guides and relevant support videos for assistance.
Air vents may be located in various places depending on the pc model.
Plug your computer to a good working ups before you update the bios.
Learn how to troubleshoot problems with the fan on your dell desktop or laptop pc.
In this video i m going to show you how to fix the cpu fan error on your computer.
Connect the ac adapter before updating the bios and do not use the system until it restarts after the update.
If you experience a loss of ac power or a significant voltage sag spike during the bios flash you will either have to buy a new bios chip or buy a new motherboard.
Now rerun the diagnostics if the issue persists we need to replace the fan.
However since then whenever i run dell diagnostics fan testing is throwing an error code 3700 011b it is unable to control the fan speed however it is showing proper rpm speed.
Diagnostics do not find anything wrong.
As result of this i see that often the fan is running at top speed with humming noise from fan and then after 10 20 seconds fan is almost at 0 rpm then again the cpu temperature rises about 55 60 degrees then again fan starts with top speed until again the cpu temperature goes below 48 52 degrees.
Save your changes and exit bios.
Intel i3 4160 3 60 ghz 24gb ddr3 ram gtx 1050 2gb.
Power the system on press f2when you see delllogo on the main bios screen press alt f then press alt eand then alt b.
Cleaning the air vents on your dell pc.