ECS Z77H2-A2X Deluxe User Manual page 21

• The four DDR3 memory sockets (DDR3_1, DDR3_2, DDR3_3 and DDR3_4)
are divided into two channels and each channel has two memory sockets
as following:
Channel A: DDR3_1, DDR3_2
Channel B: DDR3_3, DDR3_4
Recommend memory configuration
Mode
DDR3_1
1 DIMM
2 DIMMs
3 DIMMs
4 DIMMs Populated
We suggest users not mix memory type. It is recommended to use the same
brand and type memory on this motherboard.
Z77H2-A2X Deluxe USER MANUAL
Sockets
DDR3_2 DDR3_3
Populated
Populated
Populated Populated
Populated Populated
DDR3_4
Populated
Populated
Populated
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