User Manual
2-8
Chapter 2: Hardware information
2.3 Central Processing Unit (CPU)
The motherboard comes with an integrated Intel
®
Atom
®
C-Series FCBGA processor.
2.4 System memory
2.4.1 Overview
The motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules
(DIMM) sockets.
A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched
differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for
better performance with less power consumption.
The gure illustrates the location of the DDR3 DIMM sockets:
2.4.2 Memory Configurations
You may install 2 GB, 4 GB, 8 GB, and 16 GB Unbuffered with ECC/Non-ECC DDR3 DIMMs
into the DIMM sockets using the memory congurations in this section.
UDIMM
DIMM Slot Per
Channel
DIMM Populated
per Channel
DIMM Type Speed Rank per DIMM
1 1 Unbuffered DDR3 1333/1600 Single Rank, Dual Rank
Always install DIMMs with the same CAS latency. For optimum compatibility, it is
recommended that you obtain memory modules from the same vendor.
• When using only one memory module, install it into slot DIMM_A1.
• Always install identical DIMMs into both the slots.
P9A-I
P9A-I CPU
Integrated Intel
®
Atom
C-series FCBGA processor
P9A-I
P9A-I 240-pin DDR3 DIMM sockets
DIMM_B1
DIMM_A1