[SOLVED] 'System fan failure.Press F1 to continue or F2 to enter setup'

[jedthe bass]

I've been getting this message for weeks now.The CPU fan,to which I think it refers,seems ok.According to Speedfan,it settles at around 500 rpm for most of the day,is quiet and keeps the CPU at or around 35 C.I replaced the CPU fan with another one to see if this got rid of the message,but on startup the replacement hit 4500 rpm and was VERY loud.However,the message was still there,but I shut the PC down as I was afraid it was about to levitate! All of the other 4 fans seem happy enough.Its an old Inspiron 560 mobo,so maybe its past its best,but runs smoothly and boots up to Windows 10 Pro in about 20 seconds. Any tips on how to get rid of this message? Thanks.

 

[Deleted member 362816]

If the fan is still working just go into the bios and where it shows the fan speeds you may be able to select an option called "Ignore"