Asus M2NPV-VM - Manual (Page 24)

1 - 1 4 1 - 1 4 1 - 1 4 1 - 1 4 1 - 1 4 C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n
1.7.2 1.7.2 1.7.2 1.7.2 1.7.2 Memory configurations Memory configurations Memory configurations Memory configurations Memory configurations
You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered ECC/non-ECC
DDR2 DIMMs into the DIMM sockets.
• For dual-channel configuration, the total size of memory module(s)
installed per channel must be the same (DIMM_A1+ DIMM_A2 =
DIMM_B1+ DIMM_B2)
• Always install DIMMs with the same CAS latency. For optimum
compatibility, we recommend that you obtain memory modules from
the same vendor. Refer to the DDR2 Qualified Vendors List below for
details.
• Due to chipset resource allocation, the system may detect less than
8 GB system memory when you installed four 2 GB DDR2 memory
modules.
• This motherboard does not support memory modules made up of
128 Mb chips or double sided x16 memory modules.
1.7 System memory
1.7.1 1.7.1 1.7.1 1.7.1 1.7.1 Overview Overview Overview Overview Overview
The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline
Memory Modules (DIMM) sockets.
A DDR2 module has the same physical dimensions as a DDR DIMM but has a
240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are
notched differently to prevent installation on a DDR DIMM socket.
The figure illustrates the location of the DDR2 DIMM sockets:
M2NPV-VM
®
M2NPV-VM 240-pin DDR2 DIMM sockets
DIMM_A2 DIMM_A1 DIMM_B2 DIMM_B1
C h a n n e l C h a n n e l C h a n n e l C h a n n e l C h a n n e l S o c k e t s S o c k e t s S o c k e t s S o c k e t s S o c k e t s
Channel 1 DIMM_A1 and DIMM_B1
Channel 2 DIMM_A2 and DIMM_B2