What is the common cause when this problem happens? Before I replaced my stock CPU fan with a liquid cooler, I was having an alternate between CPU Fan Error, New CPU Installed and just press F1 with no indication of errors in the American Megatrends. Having guessed that this might be caused by the stock CPU Fan not running properly, I thought that this problem would be gone already. Now I am sometimes having a press F1 page with no indication of errors or something. I was am thinking now if it is the CMOS battery that is causing this problem. Though I have my OC settings saved, it's kind of annoying that this resets all my settings. Note than this also happened even before I OCed my computer.