Memory Configurations - Asus M5A87 User Manual

1.7.2

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
• We recommend that you install the memory modules from the blue slots for better
• Always install DIMMs with the same CAS latency. For optimum compatibility, we
• AMD
• Due to CPU spec., AMD
• When overclocking, some AMD CPU models may not support DDR3 1600 MHz or
• 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.
• The default memory operation frequency is dependent on its Serial Presence Detect
• For system stability, use a more efficient memory cooling system to support a full
M5A87 Motherboard Qualified Vendors Lists (QVL)
DDR3-2000(O.C.)MHz capability
Vendor Part No.
Transcend TX2400KLU-4GK(XMP)
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.
overclocking capability.
recommend that you obtain memory modules from the same vendor.
FX™ Series CPU on this motherboard supports up to DDR3 1866MHz as its
®
standard memory frequency.
ASUS design, this motherboard can support up to DDR3 1333MHz.
higher frequency DIMMs.
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.
(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. To operate at the vendor-marked or at a
higher frequency, refer to section 2.4 Ai Tweaker menu for manual memory frequency
adjustment.
memory load (4 DIMMs) or overclocking condition.
Size
4GB ( 2x 2GB )
100 and 200 series CPUs support up to DDR3 1066MHz. With
®
OS if you want to install 4GB or more memory on the
®
SS/ Chip Chip
DS Brand NO.
DS - -
OS, when you install 4GB
®
DIMM support
CL Voltage
A*
9-11-9-28 1.65V •
Chapter 1: Product introduction
®
B* C*
•