Question : Problem: dell cpu fan failed overide

Hi, im having a problem with a dell demension 2300. the cpu fan is going out (makes a clicky grinding type noise) so i replaced it with a 90mm case fan that has no tachomiter sense wire and it always gives "alert:cpu fan not detected F1 to continue....." so is there a way to spoof a tachomiter reading, or disable monitoring in the bios? the original fan doesn't give this error, but a fan from another dell does. thanks

Bios version A02
Pentium 4 1.8ghz

Answer : Problem: dell cpu fan failed overide

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