Memory Configurations - Asus F2A85-M/CSM User Manual

1.5.2

Memory configurations

You may install 1GB, 2GB, 4GB, and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM
sockets.
• Memory module with memory frequency higher than 2133 MHz and its corresponding
timing or the loaded XMP Profile is not the JEDEC memory standard. The stability and
compatibility of these memory modules depend on the CPU's capabilities and other
installed devices.
• 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.
• We recommend that you install the memory modules from the blue slots for better
overclocking capability.
• Always install DIMMs with the same CAS latency. For optimal compatibility, we
recommend that you install memory modules of the same version or date code (D/C)
from the same vendor. Check with the retailer to get the correct memory modules.
• Due to the memory address limitation on 32-bit Windows
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:
-
-
• This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less.
• The maximum 64GB memory capacity can be supported with 16GB or above DIMMs.
ASUS will update the memory QVL once the DIMMs are available in the market.
• 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. To operate at the vendor-marked
or at a higher frequency, refer to section 2.4 Ai Tweaker menu for manual memory
frequency adjustment.
• For system stability, use a more efficient memory cooling system to support a full
memory load (4 DIMMs) or overclocking condition.
F2A85-M Motherboard Qualified Vendors Lists (QVL)
DDR3 2400 (O.C.) MHz capability
Vendors Part No.
G.SKILL F3-19200CL9D-4GBPIS(XMP) 4GB(2x 2GB) DS
Kingmax FLLE88F-C8KKAA HAIS(XMP) 2GB
Team TXD34096M2400HC9N-L
Team TXD34096M2400HC9N-L
ASUS F2A85-M
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.
SS/ Chip
Size
DS Brand
-
SS -
SEC 128
4GB DS
HCH9
SEC 128
4GB DS
HCH9
OS, when you install 4GB
®
Chip NO. Timing Voltage
- 9-11-9-28 1.65V
- 10-11-10-30 1.8V
K4B2G0846D 9-11-11-28 1.65V
K4B2G0846D 9-11-11-28 1.65V
DIMM socket support
(Optional)
1 DIMM 2 DIMMs 4 DIMMs
• •
• • •
• •
• •
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