Originally Posted by n0tiert
what is beta 9921 Bios based on ?
From what I know, it's based on the 0813 bios. When I used the 9921 I needed a lot more vCore to OC and my "memory tests" ran unstable at stock speeds. With the 0903 I had no issues what so ever and got a nice full 8-Core OC to 4.40 GHz with a 1.375v. Couldn't get this with the 9921. So once I get my H100 back I am going to update the bios with this newer 1003
which states it further improves memory and system stability/compatability