Hi there and good morning, I modded a lot of BIOSes in the past and I 've always been successful but today there's a problem with Gigabyte GA-B75M-D3V BIOS. I used the latest Phoenix Tool, RWeverything report and I unticked "only alter rsdt/xsdt tables" and "only alter tables in main acpi module". Essentially my Bios works, but when I reboot, Windows shuts down and the machine goes off for about 5 seconds and then on again and Windows starts normally. What can be the reason for this? TIA Markus