Memory Configurations - Asus P8Z68 DELUXE User Manual

Memory configurations

You may install 1GB, 2GB and 4GB unbuffered and non-ECC DDR3 DIMMs into the DIMM
sockets.
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P8Z68 Deluxe Motherboard Qualified Vendors Lists (QVL)
DDR3 2200(O.C.) MHz capability
Vendors Part No.
G.SKILL F3-17600CL7D-4GBFLS(XMP)
G.SKILL F3-17600CL8D-4GBPS(XMP)
G.SKILL F3-17600CL9D-4GBTDS(XMP)
KINGMAX FLKE85F-B8KHA(XMP)
KINGMAX FLKE85F-B8KJAA-FEIS(XMP)
* The memory modules in 2200MHz and above are supported by this motherboard; however, the
actual frequency support varies depending on the O.C. margin of the installed CPU.
2-6
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.
Due to CPU 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
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).
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 3.4 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.
Size
4GB (2 x 2GB) DS
4GB (2 x 2GB) DS
4GB (2 x 2GB) DS
4GB (2 x 2GB) DS
4GB (2 x 2GB) DS
®
support site at
SS/ Chip Chip
Timing Voltage
DS Brand NO.
- - 7-10-10-28 1.65
- - 8-8-8-24 1.65
- - 9-9-9-24 1.65
- - - 1.5~1.7 •
Kingmax N/A - -
Chapter 2: Hardware information
DIMM socket support (Optional)
1 DIMM 2 DIMM 4 DIMM
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