DOA2015

Hi there Folks, I am currently having the following problem with my Clevo P170SM-A running Prema Bios with Win 8.1 64bit OS. The system was working fine when I last placed it into Hibernation. Now when I start the system I get the Prema Mod Splash screen with the words Resuming from Hibernation at the bottom, next appears the Raid Controller listing of the hard drives with the press CTRL-I to enter, following that the system just sits there. I am unable to enter the bios using F2 regardless of when I hit F2 or if I hit it like a crazy woodpecker during boot, nor am I able to use F8 to enter Safe Mode. I have tried the following things so far to correct the problem; 1. Removing the Boot Drive 2. Disconnecting Mains Power, removing the Battery and disconnecting the Bios Battery from the Mainboard. Then reconnecting the bios battery and power to try another boot. 3. Trying to boot from a USB stick does not work as I am unable to select alternative boot drives. If anyone has any ideas how to solve this issue I would be grateful. Thanks DOA2015