Error 512 - Rear Chassis fan not detected?

[Sherniee]

Hi, I built a gaming PC, with parts from my old one (motherboard included), it was a HP pavilion, and right now, whenever I start it up, it says the rear Chassis fan is not detected, and I have to hit f1 to continue booting up.

The obvious fix for this, is well, connecting back my Chassis fan, however, it rattles horribly and my machine already has 5 fans as it is, so is there anyway I can disable the "press f1 to boot" thingy, without connecting the fan?

 

[dudio]

If you can disable the warning, it's likely in the BIOS.
Can you not power one of the other fans from the rear's socket
on the motherboard and keep it happy that way?

 

[Sherniee]

If you can disable the warning, it's likely in the BIOS.
Can you not power one of the other fans from the rear's socket
on the motherboard and keep it happy that way?

Nah mate, if I keep my computer happy, I won't be stickin it to the man enough.

Haha, actually, I can't because my other fans are running a 4 pin thingy and the rear chassis fan is using a small 3 pin thingy that is planted on the motherboard.

How would I disable it in the bios?