Memory Configurations - Asus P5P43TD PRO User Manual

1.7.2

Memory configurations

You may install 512MB, 1GB, 2GB, and 4GB unbuffered 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.
• For dual-channel configuration, you can:
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• Always install DIMMs with the same CAS latency. For optimum compatibility, it is
recommended that you obtain memory modules from the same vendor.
• 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:
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• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
• This motherboard supports up to 16GB on Windows
Windows
• 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 cooling system to support a full memory load (4
DIMMs) or overclocking conditions.
ASUS P5P43TD PRO
install two identical DIMMs in DIMM_A1 and DIMM_B1; or
install four identical DIMMs in all four slots; or
install one identical DIMM pair in DIMM_A1 and DIMM_B1 (black slots) and
another identical DIMM pair in DIMM_A2 and DIMM_B2 (orange slots).
Use a maximum of 3GB system memory if you are using a 32-bit Windows Use a maximum of 3GB system memory if you are using a 32-bit Windows
Install a 64-bit Windows Windows
the motherboard.
Vista x64 editions. You may install a maximum of 4GB DIMMs on each slot. . You may install a maximum of 4GB DIMMs on each slot.
®
OS when you want to install 4GB or more memory on
®
indows XP Professional x64 and
®
OS, when you install 4GB
®
OS.
®
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