Originally Posted by pharcycle
I remember reading in the manual of my p9x79 pro that it said to only use USB 3.0 ports for external drives or high bandwidth devices.
I recently noticed that my keyboard (plugged in to USB 2 port) wasn't working at all during boot so anytime I got an overclock error or otherwise press F1 to resume message I couldn't do anything other than restart. Couldn't get in to bios either. Tried all different USB 2.0 ports but no difference. Realised eventually that my mouse plugged into a USB 3.0 hub on my monitor was the cause of the issues.
As for CPU fan not spinning, something is very wrong there. Are you using any low noise adapters (LNA) for the fan? These are simply inline resistors to drop the voltage to the fan (speed is proportional to voltage for a DC fan). If you try to drive them too slowly then they can fail to start. Less likely to occur on a 4-pin PWM controlled fan than a dumb 3-pin voltage controlled fan though.
Is the fan definitely plugge into the CPU_FAN socket on the motherboard?
Can you take screenshots of the bios settings and post them as suggested before? May help diagnose the problem
So the splash screen issue definitely involves USB ports and devices. Since I switched USB ports I haven't had the issue but a friend of mine who has the same set up is still having the same problem. Is this USB stuff causing problems happen all the time or is this something that I should RMA?
I started a new thread with the CPU fan issue, come and chime in: http://www.overclock.net/t/1351629/phanteks-phtc14pe-stops-spinning