Installing Memory Modules - ECS A790GXM-A Manual

CPU Installation Procedure
The following illustration shows CPU installation components.
1 Install your CPU. Pull up the lever away from
the socket and lift up to 90-degree angle.
2 Locate the CPU cut edge (the corner with
the pin hold noticeably missing). Align and
insert the CPU correctly.
3 Press the lever down and apply thermal
grease on top of the CPU.
4 Put the CPU Fan down on the retention mod-
ule and snap the four retention legs of the
cooling fan into place.
5 Flip the levers over to lock the heat sink in
place and connect the CPU cooling Fan power
cable to the CPU fan connector. This com-
pletes the installation.
To achieve better airflow rates and heat dissipation, we suggest that you
use a high quality fan with 4800 rpm at least. CPU fan and heatsink
installation procedures may vary with the type of CPU fan/heatsink sup-
plied. The form and size of fan/heatsink may also vary.

Installing Memory Modules

This motherboard accommodates four memory modules. It can support four 240-pin
DDR2 1066 (AM2+)/800/667/533/400. The total memory capacity is 32
DDR2 SDRAM memory module table
Memory module
DDR2
DDR2
DDR2
DDR2
DDR2
You must install at least one module in any of the four slots. Each module can be
installed with 8 GB of memory.
The four DDR2 memory sockets (DDR2_1, DDR2_2, DDR2_3, DDR2_4) are di-
vided into two channels and each channel has two memory sockets as following:
Channel 0: DDR2_1, DDR2_2
Channel 1: DDR2_3, DDR2_4
Do not remove any memory module from its antistatic packaging until
you are ready to install it on the motherboard. Handle the modules only
by their edges. Do not touch the components or metal parts. Always
wear a grounding strap when you handle the modules.
Installing the Motherboard
Memory Bus
400 200 MHz
533 266 MHz
667 333 MHz
800 400 MHz
1066 533 MHz
11
GB*.