Originally Posted by x_Stricken_x
Got everything plugged in and did a second test boot but got a CPU Fan Error showing up on my monitor, along with a no keyboard detected error (which is fine). What confuses me is the CPU fan is spinning fine, any idea what could cause the error? Also, is the power supply fan only supposed to spin at certain heat, or all the time? Mine only spins for a few seconds then stops.
CPUs generally like having the third pin, so they can figure out what speed the fan is operating at. If this information is not present, the system throws up a warning (whether there is a power draw for the fan or not). You should really get a three pin fan, unless you think that the fan you're using is never going to fail. In my experience, this assumption is usually rewarded with an overheating CPU.
As far as the PSU, it depends. Some PSUs want to minimize noise. They will include a thermal resistor that signals the fan to only turn on when a certain temperature is reached. Give the system a bit of running time, and see if the fan kicks on. Given that it starts initially, you've likely got thermal controls. If it runs for a while (10 to 20 minutes on moderate use) without having the fans turn on then you should be concerned.
Additionally, check the product box to see if there are is advertised thermal regulation.