Memory Configurations - Asus M4A77 User Manual

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
• Always install DIMMs with the same CAS latency. For optimum compatibility, we
• Due to the memory address limitation on 32-bit Windows
• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
M4A77 Motherboard Qualified Vendors Lists (QVL)
DDR2-533MHz capability
Size Vendor
512MB Kingston
1G Kingston
1G HY
512MB Elpida
512MB Transcend
512MB Kingmax
1G Elixir
1-12
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.
recommend that you obtain memory modules from the same vendor.
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
motherboard.
SS/
Part No.
DS
KVR533D2N4/512 SS
KVR533D2N4/1G DS
HYMP512U64CP8-C4 AB DS
EBE51UD8ABFA-5C-E SS
512MB DDR2 533 ECC SS
KLBC28F-A8KB4 SS
M2Y1G64TU8HBOB-37B DS
OS if you want to install 4GB or more memory on the
®
CL Chip No.
N/A HYB18T512808AF3S
N/A HY5PS12821EFP-Y5
4 HY5PS12821CFP-C4
N/A E5108AB-5C-E
N/A 6ND22D9GCT(ECC)
N/A KKEA88B4IAK-37
4 N2TU51280BE-37B61921300CP
OS, when you install 4GB
®
DIMM support
Chip
Brand
A* B*
Qimonda · ·
Hynix · ·
Hynix · ·
Elpida · ·
Micron · ·
Kingmax · ·
Elixir · ·
Chapter 1: Product introduction
®
C*
·
·
·
·
·
·
·