In attempts to troubleshoot my earlier problem http://http://forums.offtopic.com/showthread.php?t=2627409 I was doing a lot of hotswapping of my keyboard in and out of various USB ports. Then I noticed when I rebooted the boot up hung on the memory check or the CPU check (not sure which.) I cleared the CMOS and flashed the BIOS, all to no avail. Any idea on what might have happened? Can excessive hotswapping cause boot issues? Also what happens on boot up before the CPU/Ram check? Anything there that might have gotten slowed down? Lastly, once booted up the computer runs fine. Everything (RAM and CPU) are recognized fine!