OK I know I'm getting boring BUT!
As soon I select CAS 2,5 in the memory menu with whatsoever settings the board posts but nothing after that. I cant't get into BIOS, if I don't try to enter the bios, I'm getting blue or white smileys or exlamation marks ( this sign ! ) in various colours.

Using 6/23-1 beta (oskar Wu) bios from Techpowerup.

Tried just one stick does not help. This problem exists since I bought the board.

tried all four slots No go!

CAS 3 board does not post!

Ideas? I removed the battery for 8 hours and left the clear CMOS jumper in 2-3 positon also for 8 hours after flashing again the bios.

But no improvement.