I am building a gaming rig, I have a single stick 4gb DDR3 1333 and it will not post, I have tried separating the motherboard from the case, however, it WILL Post and boot with 2gb with the 4gb taken out. This motherboard is supposed to support up to 8gb of ram with two slots.
With the 4GB stick, the mobo won't post, or even beep. Completely Silent.
IF you used ONLY the 4GB as (CPU: | 4GB | blank | ) and it's failing to post then one of two likely suspects:
1. Bad RAM
2. BIOS problem
To remedy a BIOS Problem:
1. Clear CMOS, use Jumper method and to verify successful CMOS procedure the Date and Time will be reset. In the BIOS Load Defaults and set both Date and Time, Save & Exit = Yes, and reboot. See -> http://www.youtube.com/watch?v=rdHH9KrceR0 How To Clear CMOS properly.
2. Failure remains, then Flash the BIOS - use the ASUS EZ Flash 2 method:
EZ Flash 2 is a built-in App to allow the BIOS to be upgraded and USB Flash Drive is the storage for the BIOS ROM file to be stored/accessed from with BIOS EZ Flash 2. The USB Flash drive must be formatted in FAT-32.