Asus P8Z77-V LK2 User Manual

1-8
Chapter 1: Product introduction
Chapter 1
Chapter 1
Chapter 1
Chapter 1
Memory congurations
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 3.4 Ai Tweaker menu for manual memory
frequency adjustment.
• For system stability, use a more efcient 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 conguration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.
• Due to the behavior of Intel
®
2nd Generation processor, DDR3 2200 (and
above)/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).
Visit the ASUS website for the latest QVL.

Asus P8Z77-V LK2 Specifications

General

Chipset	Intel Z77
Socket	LGA 1155
Memory Slots	4 x DIMM
Max Memory	32 GB
Memory Type	DDR3
PCI Express x1	2
PCI Slots	3
SATA 6Gb/s	2
SATA 3Gb/s	4
RAID Support	RAID 0, 1, 5, 10
USB 3.0 Ports	4 (2 rear, 2 via header)
Form Factor	ATX
Memory Speed	1600/1333 MHz
PCI Express x16	2
USB 2.0 Ports	4 rear
LAN	Realtek 8111F
Audio	Realtek ALC892, 8-Channel High Definition Audio
Video Outputs	HDMI, DVI, VGA
Multi-GPU Support	AMD Quad-GPU CrossFireX Technology