My Pc is Dell Optiplex-GX50. last month, the sound (tit..tit..tit) appeared from CPU FAN. So i bought a new one and changed it but it is not original Dell cpu fan. And then the error occured.

" Alert! Previous System Fan Failure! press F1 to skip or F2 to enter the Bios"

So, first, i reset my bios. but it didn't work. second, upgrade my bios. it also didn't.

Now, i press F1 whenever turn on my pc to load Boot. Help....

My Pc is Dell Optiplex-GX50. last month, the sound (tit..tit..tit) appeared from CPU FAN. So i bought a new one and changed it but it is not original Dell cpu fan. And then the error occured.

" Alert! Previous System Fan Failure! press F1 to skip or F2 to enter the Bios"

      So, first, i reset my bios. but it didn't work. second, upgrade my bios. it also didn't.

Now, i press F1 whenever turn on my pc to load Boot. Help....

<{POST_SNAPBACK}>

Try the following:

Compare the old fan to the new one - does the old one have more wires (3) compared to the new one (2) ??? - if so, it's because the rpm monitor cable is missing and the BIOS warn you. If this is the case either get a new fan with 3 cables enter the BIOS to override the warning, (if possible) which most likely located under PC Health section (the place where the temp and voltages are monitored).

Good luck.

hi'

right!

you plugged a 2 wires cable instead of a 3 one, there is the error

you can ajust this bying a 2 to 3 wires cable

but may be the MB won't accept the trick ...

if this happens, call Dell or order a new dell one.

francois