User`s manual

Chapter 2: Installation
2-9
Memory Support
The C7B75 Motherboard supports up to 32GB of Unbuffered (UDIMM) non-ECC
DDR3 1600/1333/1066 MHz in 4 memory slots. Populating these DIMM modules
with a pair of memory modules of the same type and same size will result in
interleaved memory, which will improve memory performance. Please refer to
the table below:
DIMM1B (Blue Slot)
DIMM2A
DIMM1A
DIMM2B (Blue Slot)
Towards the edge of the motherboard
Towards the CPU
Memory Population Guidelines
When installing memory modules, the DIMM slots should be populated in the following
order: DIMM1B (blue), DIMM2B (blue), DIMM1A and DIMM2A.
• Always use DDR3 DIMM modules of the same size, type and speed.
• Mixed DIMM speeds can be installed. However, all DIMMs will run at the speed
of the slowest DIMM.
• The motherboard will support one DIMM module or three DIMM modules installed.
However for best memory performance, install DIMM modules in pairs.
Recommended Population (Balanced)
DIMM1B Slot DIMM2B Slot DIMM1A Slot DIMM2A Slot Total System Memory
2GB 2GB 4GB
2GB 2GB 2GB 2GB 8GB
4GB 4GB 8GB
4GB 4GB 4GB 4GB 16GB
8GB 8GB 16GB
8GB 8GB 8GB 8GB 32GB
Note: Due to memory allocation to system devices, the amount of memory that
remains available for operational use will be reduced when 4 GB of R AM is used.