I currently bought a new case for my brother's computer. I tore the parts from the old case and stuck it in the new. Unfortuately it was a sony and had a BTX motherboard. I plugged everything up (i think) and when I power it up, it beeps (1 long followed by 2 short). Then, something shows up on the screen. Its that thing that thing that shows whats working when booting up the pc. And it stays at that. Everything seems to be working fine but it says the power and the chasis fan is "abnormal". I am given two options. - Press [F1] to continue *when I do that, a cursor comes on the screen and flashes for a few seconds, and then the message "Reboot and select proper boot device". - Press [F2] to enter Setup *when I do that, I get into the BIOS setup. I look at the fans and it shows how fast the cpu fan is spinning but it says "n/a" for the chasis and power fan. But those two fans ARE spinning. I also have an AMI BIOS. Also, I currently have the chasis fan connected to the psu using the molar connecters. Before I had the chasis fan connected to the motherboard with this. There was also something like this coming out of the old psu that I had in the case. The new PSU doesn't have this.