ECS H55H-CM, Manual, Page: 16 / 74

12
Installing the Motherboard
Installing Memory Modules
This motherboard accommodates four memory modules. It can support four 240-pin
DDR3 1333/1066. The total memory capacity is 16 GB.
You must install at least one module in any of the four slots. Total memory capacity
is 16 GB.
DDR3 SDRAM memory module table
Memory module Memory Bus
DDR3 1066 533 MHz
ff
Channel A: DDR3_1, DDR3_2
Channel B: DDR3_3, DDR3_4
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:
1. To achieve better airflow rates and heat dissipation, we suggest that
you use a high quality fan with 3800 rpm at least. CPU fan and
heatsink installation procedures may vary with the type of CPU fan/
heatsink supplied. The form and size of fan/heatsink may also vary.
2. DO NOT remove the CPU cap from the socket before installing a
CPU.
3. Return Material Authorization (RMA) requests will be accepted
only if the motherboard comes with the cap on the LGA1156 socket.
Due to Intel CPU spec definition, the system will not boot if only one DIMM
is installed in DDR3_1 or DDR3_3. Follow the table above for recom-
mended memory configuration.
DDR3_1 DDR3_2 DDR3_3 DDR3_4
2 DIMMs - Populated - Populated
3 DIMMs Populated Populated Populated
3 DIMMs Populated Populated Populated
4 DIMMs Populated Populated Populated Populated
Mode
Sockets
Recommend memory configuration
ff
DDR3 1333 667 MHz