Asus M4A78L-M LE - Manual (Page 24)

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 Install a maximum of 3GB system memory if you are using a 32-bit Windows ®
OS.
- Use a 64-bit Windows 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.
M4A78L-M LE Motherboard Qualified Vendors Lists (QVL)
DDR2-1200(O.C.)MHz capability
DDR2-1066MHz capability
(continued on the next page)
Vendor Part No. Size SS/DS Chip Brand Chip NO. CL
DIMM support
A* B*
Kingston KHX96002K2/2G 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
OCZ OCZ2FX12002GK 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-18 • •
Team TXDD1024M1300HC6 2048MB(Kit of 2) DS Heat-Sink Package Heat-Sink Package 6-6-6-18 •
Vendor Part No. Size
SS/
DS
Chip
Brand
Chip NO. CL
DIMM support
A* B*
A-Data AD21066E002GU 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
Apacer 78.0AG9S.9K4 2048MB(kit of 2) DS N/A Heat-Sink Package 5-5-5-15 •
Apacer 78.AAGAL.9KZ 4096MB(kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
Corsair CM2X1024-8500C5 1024MB DS Corsair Heat-Sink Package • •
Corsair CM2X1024-8500C5D 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
Corsair CM2X2048-8500C5D 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
Crucial BL12864AA1065.8FE5 1024MB SS N/A Heat-Sink Package •
G.SKILL F2-8500CL5D-2GBPI 2048MB(kit of 2) SS N/A Heat-Sink Package 5-5-5-15 •
G.SKILL F2-8500CL5S-1GBPK 1024MB DS N/A
Heat-Sink
PackageSN:815130037562
5-5-5-15 • •
G.SKILL F2-8500CL5D-2GBPK 2048MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
G.SKILL F2-8500CL5D-4GBPI 4096MB(Kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
G.SKILL F2-8500CL5D-4GBPK 4096MB(kit of 2) DS N/A Heat-Sink Package 5-5-5-15 • •
GEIL GE22GB1066C5DC 1024MB SS GEIL Heat-Sink Package 5 • •
Chapter 1: Product introduction 1-12