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I have an HP Media Center and whenever it starts up there is a fan error message (pretty sure its CPU fan). However, whenever you turn the computer on, the CPU fan fires up but there is still an error message. This fan is a 3 wire fan, I assume its power, ground, signal for if the fan is working or not. I got another fan, nearly the same part number (1 number off b/c it was a little smaller). I hooked up the fan to see if the error would go away. It did not go away even with a different fan. My dad says that the motherboard is faulty (he works on really expensive servers so he knows what he is talking about). I find it hard to believe that the fan errois caused by a faulty motherboard. Anyone know if there is something else that is causing the error?
Figured it out. The solution was kind of weird though. Apparently there are two connection points for fans on the motherboard. Hook up the fan to either one and the fan turns on. You can even hook up 2 fans at the same time. Anyway, I switched the connection point on the motherboard and it started up and booted to the OS. Still get error about CPU being changed. Unlce's computer so I went into BIOS and restored default. Restore default and problem comes back. WTF? I switch the connector back to the original position and everything is fine. My uncle took the computer to Best Buy to have it fixed, and they couldn't. Best Buy should hire me.