Asus A8V-VM Ultra - Manual (Page 24)

1-1 Chapter 1: Product introduction
1.7 System memory
1..1 Overview
The motherboard comes with two 184-pin Double Data Rate (DDR) Dual
Inline Memory Module (DIMM) sockets.
The following figure illustrates the location of the sockets:
• For dual-channel configuration, the size of memory module installed
per channel must be the same (DIMM_A1= DIMM_B1)
• Always install DIMMs with the same CAS latency. For optimum
compatibility, it is recommended that you obtain memory modules
from the same vendor. See the Qualified Vendors List (QVL) on the
next page.
• If you are installing only one DIMM module for a Single-channel
configuration, install the module on DIMM_B1.
1.. Memory configurations
You may install 64MB, 18 MB, 56 MB, 51 MB,  GB unbuffered ECC or
non-ECC DDR DIMMs into the DIMM sockets using the memory configuration
in this section.
R
A8V-VM ULTRA 184-pin DDR DIMM Sockets
R
A8V-VM ULTRA
Channel Sockets
Channel A DIMM_A1
Channel B DIMM_B1