A PC I'm working on was reporting a CPU_FAN error. The fan would spin fine on start up but was very erratic afterwards- resulting in the PC ultimately shutting down. At one point I got it working for a few days, but the second I tried to put on the side panel to the PC (I had left it open), it shut down the PC immediately (I guess it short circuited or something?)
Since then, I connected the CPU fan to another fan connection on the motherboard and the fan appears to spin fine, so I'm fairly certain it's the CPU_FAN connection. Now though, my other fan at the back of the PC isn't plugged in (the cable seems too short to reach the CPU_FAN connection.
What are my best options at this point? Will my PC function if the CPU fan is running and not the back fan? Short of replacing the motherboard, what else can I try?
The BIOS settings seem limited (HP Pro 3500), but I believe some BIOS settings may allow me some additional options, esp. since the fan itself does not seem to be bad.