New bios for the ch4f, v3027.
Listed as supporting new cpu's, doesn't have test in the description so it "might" be a final bios for the new gen of cpu's.
Not sure if it's meant for the older x6's as well or not though.

It's on the ftp and the main site.
ftp://ftp.asus.com.tw/pub/ASUS/mb/so...ir_IV_Formula/