Dual-Channel Memory Population Rules - MSI MS-7521 Getting Started

Memory
These DIMM slots are used for installing memory modules.
DDR2
240-pin, 1.8V

Dual-Channel Memory Population Rules

In Dual-Channel mode, the memory modules can transmit and receive data with two
data bus lines simultaneously. Enabling Dual-Channel mode can enhance the system
performance. Please refer to the following illustrations for population rules under
Dual-Channel mode.
1
2
Important
- DDR2 memory modules are not interchangeable with DDR and the DDR2
standard is not backwards compatible. You should always install DDR2
memory modules in the DDR2 DIMM slots.
- In Dual-Channel mode, make sure that you install memory modules of the
same type and density in different channel DIMM slots.
- To enable successful system boot-up, always insert the memory modules
into the DIM M1 first.
- Due to the chipset resource deployment, the system density will only be
detected up to 15+GB (not full 16GB) when each DIMM is installed with a 4GB
memory module.
64x2=128 pin 56x2=112 pin
Hardware Setup
DIMM1
DIMM2
DIMM3
DIMM4
DIMM1
DIMM2
DIMM3
DIMM4
Installed
E mpty
2-7