don't know you dealing with dell and there proprietary ways , and why we do custom builds and not prebuilts . they got there tricks and like I say
in the end any upgrade you do is all your own risk . the prebuilt manufactures only guarantees there computers work as sold to you as is out of the box from there factory with what they put on it , not a drop more
there in business to sell you whole ready to go computers , and dont worry about you upgrading them or giving you support to do so . thats not how they make there money they prefer you run to wal-mart and buy there ''better'' latest models
I was looking it up to see if anything was on that but so far nothing but like what I posted
by the way did you see in that one link about the dell fans and how they work in the dell bios ??
''You may also have to use the same CPU fan and case fan because Dell fans typically have a sensor in them that is checked by BIOS at boot. If BIOS doesn't see the sensor, you'll get a "Fan Failure" error every time you boot.''
so now you wonder what else its checking and failing to boot ???
see you put it back in its dell proprietary home and its all good and boots right up as you say it does .
most folks trash the dell motherboard and replace it with a real one