Asus M2A74-AM User Manual - Page 21

Memory configurations - qvl

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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® 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: - Install a maximum of 3GB system memory if you are using a 32-bit Windows® OS. - Use a 64-bit Windows® OS if 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. The motherboard supports up to 8GB memory modules on Windows® XP Professional x64 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 512MB 512MB 512MB 1024MB 1024MB 1024MB 2048MB 512MB 1024MB 1024MB 2048MB(Kit of 2) A-Data Apacer Apacer Apacer Apacer Apacer Apacer Apacer Corsair Corsair Corsair G.SKILL 4096MB(Kit of 2) G.SKILL 1024MB 2048MB 2048MB 512MB 1024MB GEIL GEIL GEIL Kingmax Kingmax 512MB Kingston 1024MB Kingston Part No. SS/DS 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 CL N/A 5 5 5 5 N/A 5 5 N/A N/A 4 5-5-5-15 5-5-5-15 3 5 5 N/A N/A 5 5 Chip NO. AD20908A8A-3EG 30724 AM4B5708JQJS7E0751C AM4B5708GQJS7E06332F AM4B5708MIJS7E0627B AM4B5808CQJS7E0751C AM4B5708GQJS7E0636B AM4B5708MIJS7E0627B 78.A1G9O.9K4 MIII0052532M8CEC MID095D62864M8CEC Heat-Sink Package D2 64M8CCF 0815 C7173S Heat-Sink Package SN:8151030036559 Heat-Sink Package Heat-Sink Package Heat-Sink Package KKEA88B4LAUG-29DX KKEA88B4LAUG-29DX SO1237650821 SBP D6408TR4CGL 25USL074905PECNB E5108AJBG-8E-E(ECC) Chip Brand ADATA Apacer Apacer Apacer Apacer Apacer Apacer Apacer Corsair Corsair Corsair G.SKILL G.SKILL GEIL GEIL GEIL Kingmax Kingmax Kingston Elpida DIMM socket support A* B* · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · (continued on the next page) ASUS M2A74-AM 1-11

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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
®
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:
-
Install a maximum of 3GB system memory if you are using a 32-bit Windows
®
OS.
-
Use a 64-bit Windows
®
OS if 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.
The motherboard supports up to 8GB memory modules on Windows
®
XP Professional x64
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
Part No.
SS/DS
CL
Chip NO.
Chip
Brand
DIMM socket
support
A*
B*
2048MB
A-Data
M2OAD5H3J4170I1C53
DS
N/A
AD20908A8A-3EG 30724
ADATA
·
·
512MB
Apacer
78.91G92.9K5
SS
5
AM4B5708JQJS7E0751C
Apacer
·
·
512MB
Apacer
AU 512E667C5KBGC
SS
5
AM4B5708GQJS7E06332F
Apacer
·
·
512MB
Apacer
AU 512E667C5KBGC
SS
5
AM4B5708MIJS7E0627B
Apacer
·
·
1024MB
Apacer
78.01G9O.9K5
SS
5
AM4B5808CQJS7E0751C
Apacer
·
·
1024MB
Apacer
AU01GE667C5KBGC
DS
N/A
AM4B5708GQJS7E0636B
Apacer
·
·
1024MB
Apacer
AU01GE667C5KBGC
DS
5
AM4B5708MIJS7E0627B
Apacer
·
·
2048MB
Apacer
AM4B5808CQJS7E0749B
DS
5
78.A1G9O.9K4
Apacer
·
·
512MB
Corsair
VS 512MB667D2
DS
N/A
MIII0052532M8CEC
Corsair
·
·
1024MB
Corsair
VS1GB667D2
DS
N/A
MID095D62864M8CEC
Corsair
·
·
1024MB
Corsair
XMS2-5400
DS
4
Heat-Sink Package
Corsair
·
·
2048MB(Kit of 2)
G.SKILL
F2-5400PHU2-2GBNT
DS
5-5-5-15
D2 64M8CCF 0815 C7173S
G.SKILL
·
·
4096MB(Kit of 2)
G.SKILL
F2-5300CL5D-4GBMQ
DS
5-5-5-15
Heat-Sink Package
SN:8151030036559
G.SKILL
·
·
1024MB
GEIL
GX21GB5300SX
DS
3
Heat-Sink Package
GEIL
·
·
2048MB
GEIL
GX22GB5300LX
DS
5
Heat-Sink Package
GEIL
·
·
2048MB
GEIL
GX24GB5300LDC
DS
5
Heat-Sink Package
GEIL
·
·
512MB
Kingmax
KLCC28F-A8KB5
SS
N/A
KKEA88B4LAUG-29DX
Kingmax
·
·
1024MB
Kingmax
KLCD48F-A8KB5
DS
N/A
KKEA88B4LAUG-29DX
Kingmax
·
·
512MB
Kingston
KVR667D2N5/ 512
SS
5
SO1237650821 SBP D6408TR4CGL
25USL074905PECNB
Kingston
·
·
1024MB
Kingston
KVR667D2E5/1G
DS
5
E5108AJBG-8E-E(ECC)
Elpida
·
·
(continued on the next page)
ASUS M2A74-AM
1-11