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1.4
System memory
1.4.1
Overview
This motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Module
(DIMM) sockets. A DDR3 module is notched differently from a DDR or DDR2 module. DO
NOT install a DDR or DDR2 memory module to the DDR3 slot.
According to Intel
CPU.
H81M-PLUS
H81M-PLUS 240-pin DDR3 DIMM sockets
1.4.2
Memory configurations
You may install 1GB, 2GB, 4GB, and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM
sockets.
•
You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel configuration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.
•
Due to Intel
mode will run at the maximum transfer rate of DDR3 1600MHz.
•
Always install DIMMs with the same CAS latency. For optimal compatibility, we
recommend that you install memory modules of the same version or date code (D/C)
from the same vendor. Check with the retailer to get the correct memory modules.
•
Due to the memory address limitation on 32-bit Windows
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
following:
-
-
•
This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less.
ASUS H81M-PLUS
CPU spec, DIMM voltage below 1.65V is recommended to protect the
®
chipset limitation, DDR3 1600MHz and higher memory modules on XMP
®
Use a maximum of 3GB system memory if you are using a 32-bit Windows
Install a 64-bit Windows
®
motherboard.
Channel
Sockets
Channel A
DIMM_A1
Channel B
DIMM_B1
OS if you want to install 4GB or more on the
OS, when you install 4GB
®
®
OS.
1-7
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