OK, I have been playing around with the F12g BIOS on my motherboard and came across an option for Ultra Fast BOOT.
Thought to myself, "Ooo! That looks good I think I will try it out." Enabled this feature, saved and rebooted the PC and...........
1 continuous long beep from the motherboard speaker.
Monitor displaying the AMI Logo splash screen.
Keyboard light indicating power to keyboard.
Debug code 68 showing on LCD Debugger - Debug 68 indicates PCI Host Bridge Initialization started
PC froze at this point with beep continuing until I powered down.
Repeated the above sequence upon power up and after several attempts to get the PC to BOOT had to switch to Backup BIOS to get the PC running again. (thank goodness for that little switch on this motherboard!)
Reflashed Main BIOS Chip so everything back to previous state and started doing some research but failing miserably with this.
So my question is, does anyone have any idea why it won't go past the PCI Host Bridge Initialization stage, with Ultra Fast BOOT option enabled in BIOS?
Basic System Configuration
System not O/C'd (unless you count RAM running at rated speed of 1600MHz)
CPU: i5-2500k CPU - Water cooled
GPU: Nvidia 650
PCIe Card - 4 port USB2
PCI Card - M-Audio Delta 1010 soundcard - Not sure if this is the culprit as I didn't have the external breakout unit powered up at the time, although this doesn't cause a problem usually.
4 Various SSD's running in AHCI mode (250Gb Corsair Force 3 as Primary drive with Windows 8 64bit OS with EFI System partition)