I have to PCs with the motherboard type D3076-S displaying similar issues in which they are not completing POST and basically sitting on the Intel Boot agent screen and not booting into the OS. This problem occurred after someone removed a USB flash drive during the boot process. I've concluded we may have some type of corruption in bios which is preventing proper boot. I've attempted numerous methods in attempt to solve this problem without any success. These include, Bios update, attempting to get into bios settings to revert to default settings (currently not able to do so, system locks up and becomes unresponsive), removal CMOS battery.
Is there some way to revert this system to default settings via on board jumpers. Any ideas at this point would be greatly appreciated.