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ASUS P8Z77-M
1-8
1.4.2 Memory congurations
You may install 1GB, 2GB, 4GB and 8GB 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 efcient memory cooling system to support a full memory
load (4 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 conguration. Any excess memory
from the higher-sized channel is then mapped for single-channel operation.
• Due to Intel 2nd Generation processors' behavior, DDR3 2200/2000/1800 MHz memory
module will run at DDR3 2133/1866/1600 MHz frequency as default.
• According to Intel CPU spec, DIMM voltage below 1.65V is recommended to protect the
CPU.
• 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.
For more details, refer to the Microsoft
®
support site at
http://support.microsoft.com/kb/929605/en-us.
• This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less
(Memory chip capacity counts in Megabit, 8 Megabit/Mb = 1 Megabyte/MB).
P8Z77-M Motherboard Qualied Vendors Lists (QVL)
DDR3-2400(O.C.) MHz capability
Vendors Part No. Size SS/
DS
Chip
Brand
Chip
NO.
Timing Voltage DIMM socket support
(Optional)
1 DIMM 2 DIMM 4 DIMM
A-DATA AX3U2400GC4G10(XMP) 4GB DS - - 10-11-11-30 1.65 • • •
CORSAIR CMGTX8(XMP) 8GB (4x 2GB ) SS - - 10-12-10-30 1.65 • • •
CORSAIR CMGTX3(XMP) 2GB DS - - 9-11-9-27 1.65 •
G.SKILL F3-19200CL11Q-16GBZHD(XMP) 16GB (4x 4GB) DS - - 11-11-11-31 1.65 • • •
G.SKILL F3-19200CL11Q-16GBZHD(XMP) 16GB (4x 4GB) DS - - 11-11-11-31 1.65 • • •
G.SKILL F3-19200CL9Q-16GBZMD(XMP) 16GB (4x 4GB) DS - - 9-11-11-31 1.65 • •
G.SKILL F3-19200CL9D-4GBPIS(XMP) 4G ( 2x 2G ) DS - - 9-11-9-28 1.65 •
GEIL GOC316GB2400C10QC(XMP) 16GB (4x 4GB) DS - - 10-11-11-30 1.65 • •
GEIL GOC316GB2400C11QC(XMP) 16GB (4x 4GB) DS - - 11-11-11-30 1.65 •
Kingston KHX2400C11D3K4/8GX(XMP) 8GB (4x 2GB) SS - - 11-13-11-30 1.65 • • •
Transcend TX2400KLU-4GK (381850)(XMP) 2GB DS - - - 1.65 • •
Transcend TX2400KLU-4GK(374243)(XMP) 2GB DS - - - 1.65 • • •
Patriot PVV34G2400C9K(XMP) 4GB (2x 2GB) DS - - 9-11-9-27 1.66 • • •
* The memory modules in 2400MHz and above are supported by Intel 3rd Generation Core
Processors.
** Due to the behavior of the Intel 2nd Generation Processor, DDR3 2200 and above/2000/1800 MHz
memory module will run at DDR3 2133/1866/1600 MHz frequency as default.