This is the no hardware monitor version of the Asus P2B motherboard BIOS. It was obtained from the Powerleap adapter's website. It will flash an Asus P2B mobo, for use with a Powerleap adapter. It does not contain the hardware monitoring BIOS code. The hardware monitoring code can cause some problems, and so that's why Powerleap have this special version - just in case you need it. You can either use or not use a Powerleap adapter with this BIOS - it is not essential, it will work with other CPUs.