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ASUS AM1I-A
1-7
1.4.2 Memory congurations
You may install 1GB, 2GB, 4GB, 8GB and 16GB unbuffered non-ECC DDR3 DIMMs into the
DIMM sockets.
• 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
®
OS, when you install 4GB
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:
- Use a maximum of 3GB system memory if you are using a 32-bit Windows
®
OS.
- Install a 64-bit Windows
®
OS if you want to install 4GB or more on the
motherboard.
• This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less.
1.4 System memory
1.4.1 Overview
This motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules
(DIMM) sockets.
A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched
differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for
better performance with less power consumption.
The gure illustrates the location of the DDR3 DIMM sockets:
AM1I-A
AM1I-A 240-pin DDR3 DIMM sockets
DIMM_A1
DIMM_A2
Channel Sockets
Channel A DIMM_A1 & A2
Ensure to insert the DIMM into DIMM_A2 socket if you install only one memory module.