System Memory; Recommended Memory Configurations - Asus P8Z77-V LK Manual

2.2.3

System memory

The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules
(DIMM) sockets.
A DDR3 module is notched differently from a DDR or DDR2 module. DO NOT install a DDR
or DDR2 memory module to the DDR3 slot.
P8Z77-V LK
P8Z77-V LK 240-pin DDR3 DIMM sockets

Recommended memory configurations

We recommend that you install the memory modules from the blue slots for better
overclocking capability.
ASUS P8Z77-V LK 2-5