Asus M2N68-VM - Manual (Page 70)

2-26 Chapter 2: BIOS setup
Enable Clock to All DIMMs [Disabled]
Enables or disables clock to all DIMMs. Configuration options: [Disabled]
[Enabled]
MemClk Tristate C3/ALTVID [Disabled]
Enables or disables the MemClk Tristate C3/ALTVID.
Configuration options: [Disabled] [Enabled]
Memory Hole Remapping [Enabled]
Enables or disables the memory remapping around memory hole.
Configuration options: [Disabled] [Enabled]
DCT Unganged Mode [Auto]
Allows you to enable or disable Unganged mode. Configuration options:
[Auto] [Always]
Power Down Enable [Enabled]
Enables or disables the DDR power down mode.
Configuration options: [Disabled] [Enabled]