Asus M4A785D-M PRO - Manual (Page 21)

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