Asus has posted the follow new bios updates:

Bios CUSL2 - Series ( i815e ) 1006 - 11 Beta
Bios CUSL2-C(A/B) / CUEP2-M ( i815ep ) 1006 - 11 Beta
Bios CUV4X 1009 - 03 Beta
Bios CUV4X-C 1007 - 02 Beta
Bios CUV4X-E without OnBoard Audio 1003 - 04 Beta
Bios CUV4X-E(A) with OnBoard Audio 1004 - 04 Beta
Bios CUV4X-ME 1002 - 05 Beta
Bios CUV4X-LS 1004 - 02 Beta
Bios CUV4X-D / DLS 1008 - 01 Beta
Bios CUA 1006 - 02 Beta

Download