Asus M4A78LT PLUS - Manual (Page 18)

1.4.2 Memory configurations
You may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC and non-ECC DDR3 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 CPU specification, AMD ® 100 and 200 series CPUs support up to DDR3
1066MHz. With ASUS design, this motherboard can support up to DDR3 1333MHz.
• 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.
M4A78LT PLUS Motherboard Qualified Vendors Lists (QVL)
DDR3-1066MHz capability
• The default memory operation frequency is dependent on its Serial Presence Detect
(SPD), which is the standard way of accessing information from a memory module.
Under the default state, some memory modules for overclocking may operate at a lower
frequency than the vendor-marked value.
• For system stability, use a more efficient memory cooling system to support a full
memory load (2 DIMMs) or overclocking condition.
Vendors Part No. Size
SS/
DS
Chip
Brand
Chip NO. Timing Voltage
DIMM socket
support (Optional)
1 DIMM 2 DIMMs
Crucial CT12864BA1067.8FF 1GB SS Micron 9GF22D9KPT 7 - • •
Crucial CT12872BA1067.9FF 1GB SS Micron 9HF22D9KPT(ECC) 7 - • •
Crucial CT25664BA1067.16FF 2GB DS Micron 9HF22D9KPT 7 - • •
Crucial CT25672BA1067.18FF 2GB DS Micron 9GF22D9KPT(ECC) 7 - • •
ELPIDA EBJ10UE8EDF0-AE-F 1GB SS ELPIDA J1108EDSE-DJ-F -
1.35V(low
voltage)
• •
ELPIDA EBJ21UE8EDF0-AE-F 2GB DS ELPIDA J1108EDSE-DJ-F -
1.35V(low
voltage)
• •
KINGSTON KVR1066D3E7/1G 1GB SS ELPIDA J1108BDBG-DJ-F(ECC) 7 1.5V • •
KINGSTON KVR1066D3N7/1G 1GB SS KTC D1288JPNDPLD9U 7 1.5V • •
KINGSTON KVR1066D3N7/2G 2GB DS ELPIDA J1108BDSE-DJ-F 7 1.5V • •
KINGSTON KVR1066D3N7/4G 4GB DS Hynix H5TQ2G83AFR 7 1.5V • •
Micron MT8JTF12864AZ-1G1F1 1GB SS Micron 9GF22D9KPT 7 - • •
Micron MT9JSF12872AZ-1G1F1 1GB SS Micron 9HF22D9KPT(ECC) 7 - • •
Micron MT16JTF25664AZ-1G1F1 2GB DS Micron 9HF22D9KPT 7 - • •
Micron MT18JSF25672AZ-1G1F1 2GB DS Micron 9GF22D9KPT(ECC) 7 - • •
OCZ OCZ3G1066LV4GK 4GB(2 x 2GB) DS Micron 9BF27D9KPV 7-7-7-20 1.65V • •
Elixir M2Y2G64CB8HC5N-BE 2GB DS Elixir N2CB1G80CN-BE - - • •
Elixir M2Y2G64CBHA9N-BE 2GB DS - - 7-7-7-20 - • •
Elixir M2Y2G64CBHC9N-BE 2GB DS Elixir - - - • •
Kingtiger 2GB DIMM PC3-8500 2GB DS Hynix H5TQ1G83AFP G7C - - • •
Chapter 1: Product introduction 1-8