Asus P8H61 PRO - Manual (Page 26)

1-14 Chapter 1: Product introduction
1.7.2 Memory configurations
You may install 512MB, 1GB, 2GB, and 4GB unbuffered non-ECC DDR3 DIMMs into the
DIMM sockets.
• 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 (2 DIMMs) or overclocking condition.
• 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 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:
- Use a maximum of 3GB system memory if you are using a 32-bit Windows ® OS.
- Install a 64-bit Windows ® OS when you want to install 4GB or more on the
motherboard.
• This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less.
• The maximum 16GB memory capacity can be supported with 8GB or above DIMMs.
ASUS will update the memory QVL once the DIMMs are available in the market.
Vendors Part No. Size
SS/
DS
Chip Brand Chip NO. Timing Voltage
DIMM socket
support (Optional)
1 DIMM 2 DIMMs
Crucial CT25664BA1067.16FF 2GB DS Micron 9HF22D9KPT 7 - • •
ELPIDA EBJ21UE8EDF0-AE-F 2GB DS ELPIDA J1108EDSE-DJ-F -
1.35V(low
voltage)
• •
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 MT16JTF25664AZ-1G1F1 2GB DS Micron 9HF22D9KPT 7 - • •
OCZ OCZ3G1066LV4GK 4GB(2 x 2GB) DS Micron 9BF27D9KPV 7-7-7-20 1.65V • •
P8H61 PRO Motherboard Qualified Vendors List (QVL)
DDR3-1066MHz capability