I'm talking rubbish? You applied a FW upgrade with no idea what it does, it could just be a time warp fix which if you are not having that issue would be pointless to risk upgrading. You have no idea if it provides any benifits and yet you used it anyway?
FW and BIOS upgrades are always risky, less so with the latter due to the adoption of a dual BIOS system by many board manufacturers. That is why motherboard manufacturers always stress only to upgrade if it fixes an actual issue you are having...