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Motherboard Features
CPU
Memory
Expansion Slot
Network Connections
I/O Devices
Single Intel ® C2000 Tri-Gate 22nm SoC in the FCBGA
1283 package (Formerly Avoton Rangeley)
Each SoC supports 2, 4, or 8 Cores
Refer to the Model Variation table on page 1-4 or 1-6 for
SoC support on each MB SKU
A1SAi-2550F/2750F + A1SRi-2558F/2758F
Four (4) DIMMs memory slots support up to 64 GB of
SO-DDR3 Unbuffered ECC 1600/1333 MHz (1.5V, 1.35V)
memory; populate identical memory (of the same type/
speed/size) in all slots
A1SRi-2358F
Two (2) slots support up to 16GB of SO-DDR3 Unbuffered
ECC 1333MHz. (Some 1600MHz memory can be used,
but they will operate at 1333MHz.)
Dual-Channel memory or Single-Channel w/x8 data width,
Single or Dual Rank memory
DIMM sizes
DIMMs
2 GB, 4GB, 8GB, and 16GB ECC SODIMM
(16GB not suppoted on A1SRi-2358F)
One (1) PCI Express 2.0 x8 slot
C2000 Series SoC I354 built-in Quad-port GbE control-
lers (MACs) w/Marvell 88E1543 Transceiver
Four (4) RJ-45 rear I/O panel connectors with Link and
Activity LEDs
One (1) Dedicated IPMI LAN Port (Realtek 8211E-PHY)
SATA Connections
SATA 3.0
Two (2) SATA 3.0 (I-SATA 0/1)
(6Gb/s)
SATA 2.0
Four (2) SATA 2.0 (I-SATA 2-5)
Two (2) on A1SRi-2358F
(3Gb/s)
USB Devices
Two (2) USB 3.0 ports on the rear I/O panel (USB 3.0-
0/1)
One (1) USB 3.0 port on Type-A connector
One (1) USB 3.0 port via internal header
Two (2) USB 2.0 on the rear I/O panel (USB2.0-0/1)
1-7
Chapter 1: Introduction
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