Asus M4A785D-M PRO User Manual - Page 21

Memory configurations - windows 8

Page 21 highlights

1.7.2 Memory configurations You may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC/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: U�s�e��a��m�a�x�i�m�u�m��o��f �3�G�B��s�y�s�te�m���m�e�m��o�r�y�i�f �y�o�u�a�r�e��u�s�in�g��a�3�2�-�b�i�t �W�i�n�d�o�w��s® OS. - Install a 64-bit �W�i�nd�o�w��s® 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. The motherboard supports up to 16GB memory modules on Windows® XP Professional x64 and Vista x64 editions. You may install a maximum of 4 GB DIMMs on each slot. M4A785D-M PRO Motherboard Qualified Vendors Lists (QVL) DDR2-1200MHz capability Vendor Part No. Size SS/ DS Chip Brand Chip No. Kingston KHX96002K2/2G OCZ OCZ2FX12002GK TEAM TXDD1024M1300HC6 winchip 64A0TMTHE8G17C 2048MB(Kit of 2) DS N/A 2048MB(Kit of 2) DS N/A 2048MB(Kit of 2) DS Heat-Sink Package 2048MB(Kit of 2) DS N/A Heat-SinkPackage Heat-SinkPackage Heat-SinkPackage Heat-SinkPackage Timing DIMM (BIOS) 5-5-5-15 5-5-5-18 6-6-6-18 Voltage 2.2V 2.1 - 2.3 V 2.35V~2.45V DIMM Support A* B* C DDR2-1066 MHz capability Vendor Part No. Size SS/ Chip DS Brand Chip No. A-Data Apacer Apacer Corsair Corsair Crucial Crucial G.SKILL AD21066E002GU 78.0AGBD.9L5 78.AAGBD.9LZ CM2X1024-8500C5 CM2X2048-8500C5D BL12864AA1065.8FE5 CT25664AA1067.16FE1 F2-8500CL5D-2GBPI 4096MB(Kit of 2) 1024MB 2048MB 1024MB 4096MB(kit of 2) 1024MB 2048MB 2048MB(kit of 2) DS N/A SS N/A DS N/A DS Corsair DS N/A SS N/A DS Micron SS N/A Heat-Sink Package Heat-Sink Package Heat-Sink Package Heat-Sink Package Heat-Sink Package Heat-Sink Package 9DJKH D9JKH Heat-Sink Package (continued on the next page) Timing DIMM (BIOS) 5-5-5-15 5-5-5-15 5-5-5-15 5-5-5-15 7-7-7-13 5-5-5-15 Voltage 2.1V 2.1V DIMM Support A* B* C* • • ••• • • • • • • • • •• ASUS M4A785D-M PRO 1-11 E4711_M4A785D-M PRO.indb 11 7/6/09 9:09:48 AM

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ASUS M4A785D-M PRO
1-11
1.7.2
Memory configurations
You may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC/non-ECC DDR2 DIMMs into
the DIMM sockets.
M4A785D-M PRO Motherboard Qualified Vendors Lists (QVL)
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:
-
Use a maximum of 3GB system memory if you are using a 32-bit Windows
Use a maximum of 3GB system memory if you are using a 32-bit Windows
®
OS.
-
Install a 64-bit Windows
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.
The motherboard supports up to 16GB memory modules on Windows
®
XP Professional x64
and Vista x64 editions. You may install a maximum of 4 GB DIMMs on each slot.
(continued on the next page)
DDR2-1200MHz capability
Vendor
Part No.
Size
SS/
DS
Chip Brand
Chip No.
Timing
DIMM
(BIOS)
Voltage
DIMM
Support
A*
B*
C*
Kingston
KHX96002K2/2G
2048MB(Kit of 2)
DS
N/A
Heat-SinkPackage
5-5-5-15
2.2V
OCZ
OCZ2FX12002GK
2048MB(Kit of 2)
DS
N/A
Heat-SinkPackage
5-5-5-18
2.1 - 2.3 V
TEAM
TXDD1024M1300HC6
2048MB(Kit of 2)
DS
Heat-Sink Package
Heat-SinkPackage
6-6-6-18
2.35V~2.45V
winchip
64A0TMTHE8G17C
2048MB(Kit of 2)
DS
N/A
Heat-SinkPackage
DDR2-1066 MHz capability
Vendor
Part No.
Size
SS/
DS
Chip
Brand
Chip No.
Timing
DIMM
(BIOS)
Voltage
DIMM
Support
A*
B*
C*
A-Data
AD21066E002GU
4096MB(Kit of 2)
DS
N/A
Heat-Sink Package
5-5-5-15
2.1V
Apacer
78.0AGBD.9L5
1024MB
SS
N/A
Heat-Sink Package
5-5-5-15
Apacer
78.AAGBD.9LZ
2048MB
DS
N/A
Heat-Sink Package
5-5-5-15
Corsair
CM2X1024-8500C5
1024MB
DS
Corsair
Heat-Sink Package
Corsair
CM2X2048-8500C5D
4096MB(kit of 2)
DS
N/A
Heat-Sink Package
5-5-5-15
Crucial
BL12864AA1065.8FE5
1024MB
SS
N/A
Heat-Sink Package
Crucial
CT25664AA1067.16FE1
2048MB
DS
Micron
9DJKH D9JKH
7-7-7-13
G.SKILL
F2-8500CL5D-2GBPI
2048MB(kit of 2)
SS
N/A
Heat-Sink Package
5-5-5-15
2.1V
E4711_M4A785D-M PRO.indb
11
7/6/09
9:09:48 AM