CPU and NB Skew settings
were on the x38 version, which sailed prime & i didn't need to use them there. Only real difference i can see is we're in earlier in the game than i was with the x38 so bios is that much less mature. Though as there are so many similarities you perhaps might be forgiven for thinking that the x48 bios would be further advanced on launch with the experience of the x38
wPrime 1024M bench
it will hack that at least