1.7.2
Memory configurations
You may install 512MB, 1GB, 2GB and 4GB unbuffered ECC and 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 single-channel operation.
• Always install DIMMs with the same CAS latency. For optimum compatibility, we
recommend that you obtain memory modules from the same vendor.
• 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 256 megabits (Mb) chips or less.
The motherboard supports up to 8GB memory modules on Windows
and Vista x64 editions. You may install a maximum of 4GB DIMMs on each slot.
M2A74-AM Motherboard Qualified Vendors Lists (QVL)
DDR2-667MHz capability
Size
Vendor
2048MB
A-Data
512MB
Apacer
512MB
Apacer
512MB
Apacer
1024MB
Apacer
1024MB
Apacer
1024MB
Apacer
2048MB
Apacer
512MB
Corsair
1024MB
Corsair
1024MB
Corsair
2048MB(Kit of 2) G.SKILL
4096MB(Kit of 2) G.SKILL
1024MB
GEIL
2048MB
GEIL
2048MB
GEIL
512MB
Kingmax
1024MB
Kingmax
512MB
Kingston
1024MB
Kingston
ASUS M2A74-AM
Install a maximum of 3GB system memory if you are using a 32-bit Windows
OS.
Use a 64-bit Windows
®
motherboard.
Part No.
SS/DS CL
M2OAD5H3J4170I1C53
DS
78.91G92.9K5
SS
AU 512E667C5KBGC
SS
AU 512E667C5KBGC
SS
78.01G9O.9K5
SS
AU01GE667C5KBGC
DS
AU01GE667C5KBGC
DS
AM4B5808CQJS7E0749B DS
VS 512MB667D2
DS
VS1GB667D2
DS
XMS2-5400
DS
F2-5400PHU2-2GBNT
DS
F2-5300CL5D-4GBMQ
DS
GX21GB5300SX
DS
GX22GB5300LX
DS
GX24GB5300LDC
DS
KLCC28F-A8KB5
SS
KLCD48F-A8KB5
DS
KVR667D2N5/ 512
SS
KVR667D2E5/1G
DS
(continued on the next page)
OS if you want to install 4GB or more memory on the
Chip NO.
N/A
AD20908A8A-3EG 30724
5
AM4B5708JQJS7E0751C
5
AM4B5708GQJS7E06332F
5
AM4B5708MIJS7E0627B
5
AM4B5808CQJS7E0751C
N/A
AM4B5708GQJS7E0636B
5
AM4B5708MIJS7E0627B
5
78.A1G9O.9K4
N/A
MIII0052532M8CEC
N/A
MID095D62864M8CEC
4
Heat-Sink Package
5-5-5-15 D2 64M8CCF 0815 C7173S
5-5-5-15 Heat-Sink Package
SN:8151030036559
3
Heat-Sink Package
5
Heat-Sink Package
5
Heat-Sink Package
N/A
KKEA88B4LAUG-29DX
N/A
KKEA88B4LAUG-29DX
SO1237650821 SBP D6408TR4CGL
5
25USL074905PECNB
5
E5108AJBG-8E-E(ECC)
OS, when you install 4GB
®
XP Professional x64
®
DIMM socket
Chip
support
Brand
A*
ADATA
·
Apacer
·
Apacer
·
Apacer
·
Apacer
·
Apacer
·
Apacer
·
Apacer
·
Corsair
·
Corsair
·
Corsair
·
G.SKILL
·
G.SKILL
·
GEIL
·
GEIL
·
GEIL
·
Kingmax
·
Kingmax
·
Kingston
·
Elpida
·
®
B*
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
·
1-11
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