Asus AT3N7A-I - Manual (Page 13)

1-4 Chapter 1: Product introduction
1.4.2 Memory configurations
You may install 512MB, 1GB, and 2GB unbuffered non-ECC DDR2 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 the single-channel operation.
• Always install DIMMs with the same CAS latency. For optimum compatibility, it is
recommended that you obtain memory modules from the same vendor.
• 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 when you want to install 4GB or more memory on
the motherboard.
• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
This motherboard supports up to 4GB on Windows ® XP Professional x64 and Windows ®
Vista x64 editions. You may install a maximum of 2GB DIMMs on each slot.
AT3N7A-I Motherboard Qualified Vendors Lists (QVL)
DDR2-667 MHz capability
Size Vendor Part No.
SS/
DS
Chip
Brand
Chip NO. CL
DIMM
support
A* B*
2048MB A-Data M2OAD5H3J4170I1C53 DS ADATA AD20908A8A-3EG 30724 N/A • •
512MB Apacer 78.91G92.9K5 SS Apacer AM4B5708JQJS7E0751C 5 • •
512MB Apacer AU 512E667C5KBGC SS Apacer AM4B5708GQJS7E06332F 5 • •
512MB Apacer AU 512E667C5KBGC SS Apacer AM4B5708MIJS7E0627B 5 •
1024MB Apacer 78.01G9O.9K5 SS Apacer AM4B5808CQJS7E0751C 5 • •
1024MB Apacer AU01GE667C5KBGC DS Apacer AM4B5708GQJS7E0636B N/A • •
1024MB Apacer AU01GE667C5KBGC DS Apacer AM4B5708MIJS7E0627B 5 • •
2048MB Apacer 78.A1G9O.9K4 DS Apacer AM4B5808CQJS7E0749B 5 • •
512MB Corsair VS 512MB667D2 DS Corsair MIII0052532M8CEC N/A • •
1024MB Corsair VS1GB667D2 DS Corsair MID095D62864M8CEC N/A • •
2048MB(Kit of 2)G.SKILL F2-5400PHU2-2GBNT DS G.SKILL D2 64M8CCF 0815 C7173S 5-5-5-15 • •