system fan error [ Edited ]

[Shinichi]

After I have updated my case fan,the message"System Fan Has Failed"appears.

I have search in the internet,I know I can solve this problem by using bios.

But I do not have an option 'HardWare Monitor'

So how can I disable the system fan check

I don't want to plug my case fan in the sys fan because it only have 800rpm

Can anyone tell me how to disable it or change the fan speed of system fan

My computer model: HP Pavilion a5068hk

[DanielH]

Depending on your bios, fyi to check the processor temp, either you go to hardware monitor or health status to verify the temp

If after verifying and shows that the error has to do with the processor overheating, then you need to unmount the heatsink or ensure the heatsink is seated properly on the processor itself

[Shinichi]

I think this is not related to processor overheating because when I install the original fan,the message will disappear.

I have unmount the heatsink and install again,but the temp is quite hot around 47 to 51.

There is another problem that is the message "System Fan Has Failed".

So I want to disable the system fan check

[Bruce_Bergman]

Two issues - If you have removed and replaced the heat sink from the processor chip, you need to apply a very small dab of thermal conductive compound between the two pieces.  Or the heat can not get from the chip to the heat sink. 

(Modern heat sinks have a "tape" heat conductive pad that works - but when in doubt I like the Old School solutions.  And it's easy to use too much - about half a grain of rice, just enough so it squishes out to cover the top of the chip.)

The third lead on the fan connector is a tachometer signal from the fan, that is what trips off the Fan Fail alarm before the chip goes into thermal runaway.  You do not want to disable that, unless you want to slag the system.  (As in "Oh darn!  Now I have to go buy a new one.)   Find a proper size and speed fan.

--<< Bruce >>--