Asus P8H77-M PRO - Manual (Page 25)

ASUS P8H77-M PRO 2-5
Chapter 2
Recommended memory configurations
2.2.3 System memory
The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules
(DIMM) slots.
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.
P8H77-M PRO
P8H77-M PRO 240-pin DDR3 DIMM sockets
DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2
We recommend that you install the memory modules from the blue slots for better
overclocking capability.