User Manual

Chapter 2
12
A990FXM-A USER MANUAL
For best performance and compatibility, we recommend AMD AM3+ CPU
with the RAM Module sequence as below.
Recommend memory configuration
DDR3_1 DDR3_2 DDR3_3 DDR3_4
-- Populated -- --
-- -- -- Populated
Populated Populated -- --
-- Populated Populated --
-- -- Populated Populated
-- Populated -- Populated
Populated -- -- Populated
Populated Populated -- Populated
-- Populated Populated Populated
4 DIMMs Populated Populated Populated Populated
Mode
Sockets
1 DIMM
2 DIMMs
3 DIMMs