I just recently took an older computer with the Asus P5N7A-VM mainboard from my parents and wanted to clean it up a bit. I plugged-in the USB cable from the Dell Ultrasharp U2412M USB hub, to which my keyboard and mouse are connected, into the mainboards USB connector. After that, the computer just wouldn't boot past the Windows startup logo or past just after beeing out of GRUB in GNU/ Linux. I did every possible thing I could think of including resetting BIOS, unplugging pretty much everything I could, I even applied new heat-conducting paste on the chipset and the CPU and cleaned the computer very thoroughly. After reading through some forums, I got the idea, there might be something wrong with USB. And that was it. Just leave out hub mentioned, connect your peripherals directly to the computer and that's it. It works!
Computer not booting past operating system loading screen
Written on sometime in November 2015