Asus A8N-SLI A8N-SLI English edition user's manual, version E2068 - Page 22

System memory - what chipset

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1.4 System memory 1.4.1 Overview The motherboard comes with four 184-pin Double Data Rate (DDR) Dual Inline Memory Modules (DIMM) sockets. The following figure illustrates the location of the sockets: DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2 A8N-SLI ® A8N-SLI 184-pin DDR DIMM sockets Channel Channel A Channel B Sockets DIMM_A1 and DIMM_A2 DIMM_B1 and DIMM_B2 1.4.2 Memory configurations You may install 256 MB, 512 MB and 1 GB unbuffered non-ECC DDR DIMMs into the DIMM sockets using the memory configurations in this section. • For dual-channel configuration, the total size of memory module(s) installed per channel must be the same for better performance (DIMM_A1+DIMM_A2=DIMM_B1+DIMM_B2). • When using one DDR DIMM module, install into DIMM_B1 slot only. • When using two DDR DIMM modules, install into DIMM_A1 and DIMM_B1 slots only. • Always install DIMMs with the same CAS latency. For optimum compatibility, we recommended that you obtain memory modules from the same vendor system builder's website for the latest qualified vendors list (QVL). • Due to chipset resource allocation, the system may detect less than 4 GB of system memory when you installed four 1 GB DDR memory modules. • Due to CPU limitation, this motherboard does not support DIMM modules with 128 Mb memory chips or double-sided x16 memory chips. 1-12 Chapter 1: Hardware information

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Chapter 1: Hardware information
Chapter 1: Hardware information
Chapter 1: Hardware information
Chapter 1: Hardware information
Chapter 1: Hardware information
1.4
System memory
1.4.1
1.4.1
1.4.1
1.4.1
1.4.1
Overview
Overview
Overview
Overview
Overview
The motherboard comes with four 184-pin Double Data Rate (DDR) Dual
Inline Memory Modules (DIMM) sockets.
The following figure illustrates the location of the sockets:
1.4.2
1.4.2
1.4.2
1.4.2
1.4.2
Memory configurations
Memory configurations
Memory configurations
Memory configurations
Memory configurations
You may install 256 MB, 512 MB and 1 GB unbuffered non-ECC DDR DIMMs
into the DIMM sockets using the memory configurations in this section.
A8N-SLI
A8N-SLI 184-pin DDR DIMM sockets
DIMM_A1
DIMM_A2
DIMM_B1
DIMM_B2
Channel
Channel
Channel
Channel
Channel
Sockets
Sockets
Sockets
Sockets
Sockets
Channel A
DIMM_A1 and DIMM_A2
Channel B
DIMM_B1 and DIMM_B2
•
For dual-channel configuration, the total size of memory module(s)
installed per channel must be the same for better performance
(DIMM_A1+DIMM_A2=DIMM_B1+DIMM_B2).
•
When using one DDR DIMM module, install into DIMM_B1 slot only.
•
When using two DDR DIMM modules, install into DIMM_A1 and
DIMM_B1 slots only.
•
Always install DIMMs with the same CAS latency. For optimum
compatibility, we recommended that you obtain memory modules
from the same vendor system builder’s website for the latest
qualified vendors list (QVL).
•
Due to chipset resource allocation, the system may detect less than
4 GB of system memory when you installed four 1 GB DDR memory
modules.
•
Due to CPU limitation, this motherboard does not support DIMM
modules with 128 Mb memory chips or double-sided x16 memory
chips.