Chapter 2: Installation
2-5
2-3 Memory Support
The A1SAi & A1SRi Series motherboard supports up to 32GB of DDR3 ECC SO-
DIMM 1600/1333 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.
Note: Check the Supermicro website for recommended memory modules.
CAUTION
Exercise extreme care when installing or removing DIMM
modules to prevent any possible damage.
Memory Population Guidelines
Please follow the table below when populating the motherboard.
Unbuffered DDR3 ECC SODIMM Memory
DIMM Slots per
Channel
DIMMs Populat-
ed per Channel
DIMM Type POR Speeds Memory Population
Sequence
2 1 Unbuffered
DDR3 SODIMM
1600,1333 A1, B1 (2 DIMMs)
2 2 Unbuffered
DDR3 SODIMM
1600,1333 A1, B1, A2, B2
(4 DIMMs)
Note: Be sure to use memory modules of the same type, same speed,
same frequency, and same size on the same motherboard. Mixing of
memory modules of different types, speeds, or size is not allowed.
DIMMA1
DIMMA2
DIMMB2
DIMMB1
Towards the CPU
Towards the CPU