Supero A1SAi-2550F User manual

A1SAi-2550F
A1SAi-2750F
A1SRi-2358F
A1SRi-2558F
A1SRi-2758F
USER’S MANUAL
Revision 1.0c

The information in this user’s manual has been carefully reviewed and is believed to be accurate.
The vendor assumes no responsibility for any inaccuracies that may be contained in this document,
and makes no commitment to update or to keep current the information in this manual, or to notify
any person or organization of the updates. Please Note: For the most up-to-date version of this
manual, please see our website at www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product
described in this manual at any time and without notice. This product, including software and docu-
mentation, is the property of Supermicro and/or its licensors, and is supplied only under a license.
Any use or reproduction of this product is not allowed, except as expressly permitted by the terms
of said license.
IN NO EVENT WILL SUPER MICRO COMPUTER, INC. BE LIABLE FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL, SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE
USE OR INABILITY TO USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, SUPER MICRO COMPUTER, INC.
SHALL NOT HAVE LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED OR USED
WITH THE PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING,
INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.
Any disputes arising between the manufacturer and the customer shall be governed by the laws of
Santa Clara County in the State of California, USA. The State of California, County of Santa Clara
shall be the exclusive venue for the resolution of any such disputes. Supermicro's total liability for
all claims will not exceed the price paid for the hardware product.
FCC Statement: This equipment has been tested and found to comply with the limits for a Class
A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the manufacturer’s instruction manual, may cause harmful
interference with radio communications. Operation of this equipment in a residential area is likely
to cause harmful interference, in which case you will be required to correct the interference at your
own expense.
California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate
warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate
Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”.
WARNING: Handling of lead solder materials used in this
product may expose you to lead, a chemical known to
the State of California to cause birth defects and other
reproductive harm.
Manual Revision 1.0c
Release Date: May 5, 2016
Unless you request and receive written permission from Super Micro Computer, Inc., you may not
copy any part of this document.
Information in this document is subject to change without notice. Other products and companies
referred to herein are trademarks or registered trademarks of their respective companies or mark
holders.
Copyright © 2016 by Super Micro Computer, Inc.
All rights reserved.
Printed in the United States of America

iii
Preface
This manual is written for system integrators, IT technicians and
knowledgeable end users. It provides information for the installation and use of the
A1SAi-2750F(-2550F)/A1SRi-2758F(-2558F, -2358F) Series motherboard.
About This Motherboard
The A1SAi & A1SRi Series motherboard supports a next-generation Intel®
C2000 SoC (System-on-a-Chip) processor in an FCBGA package. With a C2000 Se-
ries processor built in, the A1SAi/A1SRi Series motherboard supports all-purpose,
cutting-edge technology such as ECC SODIMM, up to 64GB memory capacity, In-
tel's Virtualization Technology, Turbo Boost Technology, or QuickAssist Technology,
offering unprecedented enhancements to data integrity, internet security, network
communication, system performance, power efciency and scalability. This mother-
board is optimized for network applications, web hosting, dedicated storage/server,
and cloud computing. It is ideal for communications systems, embedded solutions,
server or storage platforms. Please refer to our website at (http://www.supermicro.
com/products/) for processor and memory support updates. This product is intended
to be installed and serviced by professional technicians.
Manual Organization
Chapter 1 describes the features, specications and performance of the moth-
erboard, and provides detailed information on the Intel C2000 Series processor.
Chapter 2 provides hardware installation instructions. Read this chapter when in-
stalling the processor, memory modules and other hardware components into the
system. If you encounter any problems, see Chapter 3, which describes trouble-
shooting procedures for video, memory and system setup stored in the CMOS.
Chapter 4 includes an introduction to the BIOS, and provides detailed information
on running the CMOS Setup utility.
Appendix A provides BIOS Error Beep Codes.
Appendix B lists software program installation instructions.
Appendix C contains UEFI BIOS Recovery instructions.
Preface

iv
Conventions Used in the Manual:
Special attention should be given to the following symbols for proper installation and
to prevent damage done to the components or injury to yourself:
Warning: Critical information to prevent damage to the components or injury to your-
self.
Important: Important information given to ensure proper system installa-
tion or to relay safety precautions.
Note: Additional Information given to differentiate various models or to
provide instructions for correct system setup.
A1SAi & A1SRi Series Motherboard User’s Manual

v
Contacting Supermicro
Contacting Supermicro
Headquarters
Address: Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
Website: www.supermicro.com
Europe
Address: Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
[email protected] (Customer Support)
Website: www.supermicro.nl
Asia-Pacic
Address: Super Micro Computer, Inc.
3F, No. 150, Jian 1st Rd.
Zhonghe Dist., New Taipei City 235
Taiwan (R.O.C)
Tel: [phone]
Fax: [phone]
Email: [email protected]
Website: www.supermicro.com.tw

vi
Table of Contents
Preface
About This Motherboard................................................................................................iii
Manual Organization .....................................................................................................iii
Conventions Used in the Manual:.................................................................................iv
Contacting Supermicro...................................................................................................v
Chapter 1 Introduction
1-1 Overview ......................................................................................................... 1-1
Checklist.......................................................................................................... 1-1
Motherboard Features..................................................................................... 1-7
1-2 Processor Overview ..................................................................................... 1-10
1-3 Special Features ............................................................................................1-11
Recovery from AC Power Loss......................................................................1-11
1-4 PC Health Monitoring.....................................................................................1-11
Environmental Temperature Control ..............................................................1-11
System Resource Alert ..................................................................................1-11
1-5 ACPI Features............................................................................................... 1-12
1-6 Power Supply ................................................................................................ 1-12
Chapter 2 Installation
2-1 Standardized Warning Statements ................................................................. 2-1
Battery Handling.............................................................................................. 2-1
Product Disposal ............................................................................................. 2-3
2-2 Static-Sensitive Devices.................................................................................. 2-4
Precautions ..................................................................................................... 2-4
Unpacking ....................................................................................................... 2-4
2-3 Memory Support.............................................................................................. 2-5
Memory Population Guidelines ....................................................................... 2-5
Populating Memory Modules........................................................................... 2-6
Installing DIMM Memory Modules................................................................... 2-6
Removing Memory Modules ........................................................................... 2-6
2-4 Motherboard Installation.................................................................................. 2-8
Tools Needed .................................................................................................. 2-8
Location of Mounting Holes ............................................................................ 2-8
Installing the Motherboard .............................................................................. 2-9
2-5 Connectors/IO Ports...................................................................................... 2-10
I/O Back Panel .............................................................................................. 2-10
Serial Ports................................................................................................2-11
A1SAi & A1SRi Series Motherboard User’s Manual

vii
Ethernet Ports ...........................................................................................2-11
Universal Serial Bus (USB)...................................................................... 2-12
Unit Identier Switch ................................................................................ 2-13
VGA.......................................................................................................... 2-13
Front Control Panel....................................................................................... 2-14
Front Control Panel Pin Denitions............................................................... 2-15
NMI Button ............................................................................................... 2-15
Power LED .............................................................................................. 2-15
HDD LED.................................................................................................. 2-16
NIC1/NIC2 (LAN1/LAN2).......................................................................... 2-16
Overheat (OH)/Fan Fail/PWR Fail/UID LED ............................................ 2-17
Power Fail LED ........................................................................................ 2-17
Reset Button ........................................................................................... 2-18
Power Button ........................................................................................... 2-18
2-6 Connecting Cables........................................................................................ 2-19
ATX PWR, DC PWR and HDD PWR Connectors (JPW1, J1, J3) .......... 2-19
Fan Headers (Fan 1 ~ Fan 3).................................................................. 2-20
Chassis Intrusion (JL1) ........................................................................... 2-20
Internal Buzzer (SP1)............................................................................... 2-21
Power LED/Speaker................................................................................. 2-21
DOM PWR Connector (JSD1).................................................................. 2-22
Overheat LED Header.............................................................................. 2-22
TPM Header/Port 80 Header ................................................................... 2-23
LAN3/LAN4 Activity LED Header ............................................................. 2-23
Power SMB (I2C) Connector .................................................................... 2-24
System Management Bus Header ........................................................... 2-24
2-7 Jumper Settings ............................................................................................ 2-25
Explanation of Jumpers ................................................................................ 2-25
LAN Ports Enable/Disable........................................................................ 2-25
CMOS Clear ............................................................................................. 2-26
PCI-E Slot SMB Enable (I2C1/I2C2) ......................................................... 2-26
Watch Dog Timer Enable ......................................................................... 2-27
VGA Enable.............................................................................................. 2-27
2-8 Onboard Indicators........................................................................................ 2-28
GbE LAN LEDs ........................................................................................ 2-28
IPMI Dedicated LAN LEDs....................................................................... 2-28
Onboard Power LED ............................................................................... 2-29
Overheat/PWR Fail/Fan Fail LED ............................................................ 2-29
Unit Identication LED.............................................................................. 2-30
Table of Contents

viii
2-9 SATA Connections......................................................................................... 2-31
Serial ATA Ports........................................................................................ 2-31
Chapter 3 Troubleshooting
3-1 Troubleshooting Procedures ........................................................................... 3-1
Before Power On ............................................................................................ 3-1
No Power ........................................................................................................ 3-1
No Video ......................................................................................................... 3-1
Memory Errors ............................................................................................... 3-2
Losing the System’s Setup Conguration....................................................... 3-2
3-2 Technical Support Procedures ........................................................................ 3-3
3-3 Frequently Asked Questions ........................................................................... 3-4
3-4 Battery Removal and Installation .................................................................... 3-5
Battery Removal.............................................................................................. 3-5
Proper Battery Disposal .................................................................................. 3-5
Battery Installation........................................................................................... 3-5
3-5 Returning Merchandise for Service................................................................. 3-6
Chapter 4 BIOS
4-1 Introduction...................................................................................................... 4-1
4-2 Main Setup ...................................................................................................... 4-3
4-3 Advanced Setup Congurations...................................................................... 4-4
4-4 IPMI...............................................................................................................4-29
4-6 Boot............................................................................................................... 4-33
4-7 Security ......................................................................................................... 4-34
4-8 Save & Exit ................................................................................................... 4-37
Appendix A BIOS Error Beep Codes
A-1 BIOS Error Beep Codes .................................................................................A-1
Appendix B Software Installation Instructions
B-1 Installing Software Programs ..........................................................................B-1
B-2 Installing SuperDoctor5...................................................................................B-2
Appendix C UEFI BIOS Recovery Instructions
C-1 An Overview to the UEFI BIOS ......................................................................C-1
C-2 How to Recover the UEFI BIOS Image (the Main BIOS Block).....................C-1
C-3 To Recover the Main BIOS Block Using a USB-Attached Device..................C-1
A1SAi & A1SRi Series Motherboard User’s Manual

Chapter 1: Introduction
1-1
Chapter 1
Introduction
1-1 Overview
Checklist
Congratulations on purchasing your computer motherboard from an acknowledged
leader in the industry. Supermicro boards are designed with the utmost attention to
detail to provide you with the highest standards in quality and performance.
Please check that the following items have all been included with your motherboard.
If anything listed here is damaged or missing, contact your retailer.
The following items are included in the retail box:
• One (1) Supermicro Motherboard
• Six (6) SATA cables (four (4) for A1SRi-2358F)
• One (1) I/O shield
• One (1) Quick Reference Guide
Note: For your system to work properly, please follow the links below to
download all necessary drivers/utilities and the user's manual for your
motherboard.
SMCI product manuals: http://www.supermicro.com/support/manuals/
Product Drivers and utilities: ftp://ftp.supermicro.com/
If you have any questions, please contact our support team at support@supermicro.
com.

1-2
A1SAi & A1SRi Series Motherboard User’s Manual
A1SAi & A1SRi Series Motherboard Image
Note 1: All graphics shown in this manual were based upon the latest PCB Revision
available at the time of publishing of the manual. The motherboard you've received
may or may not look exactly the same as the graphics shown in this manual.
Note 2: I-SATA4/5 and DIMMB1/B2 are not available on A1SRi-2358F.

Chapter 1: Introduction
1-3
A1SAi & A1SRi Series Motherboard Layout
Important Notes to the User
1. See Chapter 2 for detailed information on jumpers, I/O ports and JF1 front
panel connections.
2. " " indicates the location of "Pin 1". Jumpers not indicated are for testing
only.
3. I-SATA4/5 and DIMMB1/B2 are not available on A1SRi-2358F.
4. When LED3 (Onboard Power LED Indicator) is on, system power is on.
Unplug the power cable before installing or removing any components.
5. The A1SRi Series motherboard supports Intel®QuickAssist technology to
enhance network routing and internet security for communications systems.
6. The A1SAi Series motherboard supports Turbo Boost Technology, offering
turbo-boost capabilities to maximize system performance for server plat-
forms. Refer to the Model Variation table on page 1-6 for more details.
Battery
JD1
FAN1
FAN2
FAN3
I-SATA4
I-SATA5
J1
J3
JPI2C1
JPW1
JSD1
JTPM1
VGA
LED8 LED3
LED7
JBT1
1
JOH1
JL1
JI2C1
JI2C2
JPK1
JWD1
JPG1 JIPMB1
COM2
COM1
JF1
USB 3.0-2
LAN3/4 LED
LAN2/LAN4 LAN1/LAN3
USB2.0-0/1
USB3.0-0/1
USB 3.0-3
IPMI_LAN
PCI-E 2.0 X8
DIMMA1
DIMMA2
DIMMB2
DIMMB1
I-SATA0
A1SAi/A1SRi Series Motherboard
Rev. 1.00
FP CTRL
JPL1
BIOS
Marvell
PHY
BMC
Bar Code
JUIDB1
CPU
SP1
I-SATA2
I-SATA3
I-SATA1
LED2

1-4
A1SAi & A1SRi Series Motherboard User’s Manual
A1SAi & A1SRi Series Motherboard Quick Reference
Battery
JD1
FAN1
FAN2
FAN3
I-SATA4
I-SATA5
J1
J3
JPI2C1
JPW1
JSD1
JTPM1
VGA
LED8 LED3
LED7
JBT1
1
JOH1
JL1
JI2C1
JI2C2
JPK1
JWD1
JPG1 JIPMB1
COM2
COM1
JF1
USB 3.0-2
LAN3/4 LED
LAN2/LAN4 LAN1/LAN3
USB2.0-0/1
USB3.0-0/1
USB 3.0-3
IPMI_LAN
PCI-E 2.0 X8
DIMMA1
DIMMA2
DIMMB2
DIMMB1
I-SATA0
A1SAi/A1SRi Series Motherboard
Rev. 1.00
FP CTRL
JPL1
BIOS
Marvell
PHY
BMC
Bar Code
JUIDB1
CPU
SP1
I-SATA2
I-SATA3
I-SATA1
LED2
Mothrboard Model Name
A1SAi-2750F
A1SAi-2550F A1SRi-2758F A1SRi-2558F A1SRi-2358F
SoC Code Name
Avoton
Avoton
Rangeley
Rangeley Rangeley
Processor Number C2750 C2550 C2758 C2558 C2358
# of Cores 8 4 8 4 2
# of Threads 8 4 8 4 2
Clock Speed 2.4 GHz 2.4 GHz 2.4 GHz 2.4 GHz 1.7 GHz
Max Turbo Frequency 2.6 GHz 2.6 GHz N/A N/A 2.0 GHz
Intel® QuickAssist Technology No No Yes Yes Yes
Instruction Set 64-bit 64-bit 64-bit 64-bit 64-bit
Embedded Options Available No No Yes Yes Yes
SoC Max TDP 20 W 14 W 20 W 15 W 7W
# of Memory Channels 2 2 2 2 1
Intel® Turbo Boost Technology Yes Yes No No Yes
Intel® Virtualization Technology (VT-x) Yes Yes Yes Yes Yes
AES New Instructions Yes Yes Yes Yes Yes
Intel® Hyper-Threading Technology No No No No No
Intel® QuickAssist Technology No No Yes Yes Yes
A1SAi/A1SRi Series Motherboard Model Variation Table

Chapter 1: Introduction
1-5
Jumpers
Jumper Description Default
JBT1 CMOS Clear Off (Normal)
JI2C1/JI2C2 SMB to PCI-Exp. Slots Off (Disabled)
JPG1 VGA Enable Pins 1-2 (Enabled)
JPL1 Ethernet LAN Ports Enable Pins 1-2 (Enabled)
JWD1 Watch Dog Enable Pins 1-2 (Reset)
Headers/Connectors
Connector Description
Battery Onboard Battery (JBAT1)
COM1/COM2 COM1/COM2 Port Headers
FAN1-FAN3 CPU/System Cooling Fans
J1* 4-pin 12V DC Power Connector (to provide alternative power to embedded
devices such as SC101i, when the 24-pin ATX power is not in use)
J3 4-pin Power Connector for HDD use (to provide power from the motherboard
to onboard HDD devices)
JD1 Power LED/Speaker Header(Pins 1-3: Power LED, Pins 6-7: Internal
Buzzer, Pins 4-7: External Speaker)
JF1 Front Panel Control Header
JIPMB1 4-pin External SMbus I2C Header (for an IPMI Card)
JL1 Chassis Intrusion Header
JOH1 Overheat LED Header
JPI2C1 Power Supply System Management Bus (SMBus) I2C Header
JPK1 LAN3/LAN4 LED Indication Header
JPW1* 24-pin ATX Power Connector
JSD1 SATA DOM (Device_On_Module) Power Connector
JTPM1 Trusted Platform Module (TPM)/Port 80 Connector
JUID1 Unit Identier (UID) Switch
LAN1/LAN3, LAN2/LAN4 Gigabit Ethernet (RJ45) Ports
PCI-E Slot PCI-E 2.0 x 8 Slot
I-SATA0-I-SATA5 Intel Serial ATA Ports 0-5 (Ports 4/5 not available on the A1SRi-2358F)
SP1 Internal Speaker/Buzzer
USB 2.0 0/1 USB 2.0 Ports on the Rear I/O Panel
USB 3.0 0/1 USB 3.0 Ports on the Rear I/O Panel
USB 3.0 2/3 One USB 3.0 Port via Header + One USB 3.0 Port via Type-A
VGA Backpanel VGA Port
(*Do not use the 4-pin DC power at J1 when the 24-pin ATX Power at JPW1 is connected to the power supply. Do
not plug in both J1 and JPW1 at the same time.)

1-6
A1SAi & A1SRi Series Motherboard User’s Manual
LED Indicators
LED Description Color/State Status
LED2 BMC Heartbeat LED Green: Blinking BMC: Normal
LED3 Power LED Green: On System PWR On
LED7 UID Switch LED Blue: On Unit Identied
LED8 Overheat/PWR Fail/Fan Fail LED Red: Solid on/Blinking Solid On: Overheat,
Blinking: PWR Fail or Fan Fail
Note: The A1SRi Series motherboard supports Intel QuickAssist technol-
ogy to enhance network routing and internet security for communications
systems. The A1SAi Series motherboard supports Turbo Boost Technology,
offering turbo boost capabilities to maximize system performance for server
platforms. Refer to the Model Variation table below for details.
Mothrboard Model Name
A1SAi-2750F
A1SAi-2550F A1SRi-2758F A1SRi-2558F A1SRi-2358F
SoC Code Name
Avoton
Avoton
Rangeley
Rangeley Rangeley
Processor Number C2750 C2550 C2758 C2558 C2358
# of Cores 8 4 8 4 2
# of Threads 8 4 8 4 2
Clock Speed 2.4 GHz 2.4 GHz 2.4 GHz 2.4 GHz 1.7 GHz
Max Turbo Frequency 2.6 GHz 2.6 GHz N/A N/A 2.0 GHz
Intel® QuickAssist Technology No No Yes Yes Yes
Instruction Set 64-bit 64-bit 64-bit 64-bit 64-bit
Embedded Options Available No No Yes Yes Yes
SoC Max TDP 20 W 14 W 20 W 15 W 7W
# of Memory Channels 2 2 2 2 1
Intel® Turbo Boost Technology Yes Yes No No Yes
Intel® Virtualization Technology (VT-x) Yes Yes Yes Yes Yes
AES New Instructions Yes Yes Yes Yes Yes
Intel® Hyper-Threading Technology No No No No No
Intel® QuickAssist Technology No No Yes Yes Yes
A1SAi/A1SRi Series Motherboard Model Variation Table

Chapter 1: Introduction
1-7
Motherboard Features
CPU 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
Memory 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)
Expansion Slot One (1) PCI Express 2.0 x8 slot
Network Connections 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)
I/O Devices SATA Connections
SATA 3.0
(6Gb/s)
Two (2) SATA 3.0 (I-SATA 0/1)
SATA 2.0
(3Gb/s)
Four (2) SATA 2.0 (I-SATA 2-5)
Two (2) on A1SRi-2358F
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)

1-8
A1SAi & A1SRi Series Motherboard User’s Manual
Serial (COM) Ports
One (1) COM port on the rear I/O panel (COM1)
One (1) front accessible COM port header (COM2)
IPMI 2.0
IPMI 2.0 supported by Aspeed AST2400 BMC (Base-
board Management Controller)
VGA (Graphics Display)
One (1) VGA Port on the rear I/O panel supported by the
Aspeed AST2400 VGA Controller
BIOS 64 Mb AMI BIOS®SPI EEPROM BIOS
Plug and Play, DMI 2.0, PCI 2.3, ACPI 5.0, USB Key-
board, SMBIOS 2.7, and UEFI 2.3.1
Power Conguration ACPI/ACPM Power Management (S0 and S5 only)
Main Switch Override Mechanism
Power-on mode for AC power recovery
PC Health Monitoring Onboard Voltage Monitoring
VCCP, VDIMM, 12V, 5VCC, 3.3VCC, VBAT, 5V, Dual, and
3.3V AUX
CPU 1+1-phase switching voltage regulator
CPU/System overheat LED and control
CPU Thermal Trip support
SoC Thermal Control Circuit (TCC) mechanism
Thermal Monitor Support
Fan Control
Low noise fan speed control
BMC Health Monitoring
BMC Fan control and thermal alert by sensors monitor-
ing, including CPU, memory and motherboard ambient
temperatures
System Management PECI (Platform Environment Conguration Interface) 3.0
System resource alert via SuperDoctor®5
SuperDoctor®5, Watch Dog, NMI
Chassis Intrusion header and detection
CD Utilities Download from www.supermicro.com
Other ROHS (Full Compliance, Lead Free)
Operating Temperature 00-600C
Dimensions Mini iTX form factor (6.75" x 6.75") (171.45 mm x 171.45
mm)
Note: Please refer to Note 5 and Note 6 on page 1-3 for Intel®QuickAssist
technology and Turbo Boost technology support.

Chapter 1: Introduction
1-9
System Block Diagram
Note: This is a general block diagram and may not exactly represent
the features on your motherboard. See the Motherboard Features
pages for the actual specications of each motherboard.
A1SAi & A1SRi Series motherboard Block Diagram
CHB
B1 A2
PEG [8..15]
FLASH 64Mb
SO - DIMM
CHA
LPC
SATA 3.0
PCIE 2.0 x 8 SLOT
A1
SO - DIMM
TPM HDR
C2000 SOC
VGA
FAN x 3
SO - DIMM
SATA 2.0
SATA GEN2
SO - DIMM
SATA 3.0
SATA GEN3
CHACHB
PEG [7]
PEG [3]
PCIE x 8
AST2400
PCIE x 1
COM1 COM2
SATA 2.0
SATA 2.0
SATA 2.0
RJ45
RTL8211E
SGMII x 4
Marvell
88E1543
10BASE-T/100BASE-T/1000BASE-T
LAN1
LAN3
LAN2
LAN4
+
SPI
USB [0:1]
USB [2:3]
TX/RX
(debug)
0Ohm
NI
LPC
UART1 UART2
B2
USB 2.0 X 2
Renesas
720201
USB 3.0 X 4
TYPE-A
USB HEADER
+
+
REAR
REAR
PCIE x 1
GbE LAN
DIMMB1/B2 not available on A1SRi-2358F
A1SRi-2358F (Two SATA 2.0 only)
A1SAi-2550F/2750F (Four SATA 2.0)
REAR

1-10
A1SAi & A1SRi Series Motherboard User’s Manual
1-2 Processor Overview
The A1SAi/A1SRi Series motherboard supports a 2nd-generation 64-bit, Intel
Atom™ C2000 Tri-Gate SoC (System-on-a-Chip) processor based on low-power
Silvermont microarchitecture in an FCBGA 1283 package. Built upon the func-
tionality and capability of the C2000 Series processor in the low-power 22nm
microarchitecture, the A1SAi/A1SRi Series motherboard provides unprecedented
enhancements to network routing, internet security, system performance, and power
efciency.
The C2000 SoC Series processor features an Out-of-Order Execution Engine and
offers new multi-core and system fabric architecture capable of utilizing up to eight
CPU cores to achieve improved single-thread performance. This new SoC proces-
sor also provides an operating range with wider dynamic power and enhanced
power management. In addition, the A1SRi Series motherboard supports the Intel
QuickAssist Technology, which provides hardware acceleration to help enhance
cryptographic performance, secure internet trafc, and boost network routing,
freeing up processor resources for application processing, while the A1SAi Series
motherboard supports the Intel Turbo Boost Technology, which offers turbo-boost
capabilities to maximize system performance.
Intel®C2000 Series Processor Features
The C2000 Series processor offers the following features:
• Up to 64GB ECC memory support (up to 16GB for A1SRi-2358F)
• Enterprise Class I354 Quad GbE LAN Controller
• Four SATA2 ports and two SATA3 ports (Two SATA2 and two SATA3 for A1SRi-
2358F)
• SSE Extensions
• AES-NI
• Highly-Optimized Power Management Unit
• Server-Class Reliability, Availability and Serviceability (RAS)
• Intel Virtualization Technology (VTx)
• Intel QuickAssist Technology (A1SRi Series only)
• Intel Turbo Boost Technology (A1SAi Series + A1SRi-2358F only)

Chapter 1: Introduction
1-11
1-3 Special Features
Recovery from AC Power Loss
Basic I/O System (BIOS) provides a setting for you to determine how the system will
respond when AC power is lost and then restored to the system. You can choose
for the system to remain powered off, (in which case you must press the power
switch to turn it back on), or for it to automatically return to a power-on state. See
the Advanced BIOS Setup section to change this setting. The default setting is
Last State.
1-4 PC Health Monitoring
This section describes the PC health monitoring features of the board. All have
an onboard System Hardware Monitoring chip that supports PC health monitoring.
An onboard voltage monitor will scan these onboard voltages continuously: VCCP,
VDIMM, 12V, 5VCC, 3.3VCC, VBAT, 5V, Dual, and 3.3V AUX. Once a voltage be-
comes unstable, a warning is given, or an error message is sent to the screen. The
user can adjust the voltage thresholds to dene the sensitivity of the voltage monitor.
Environmental Temperature Control
This motherboard comes with a built-in passive heatsink. Please follow the instruc-
tions given in your system design guide or your system user manual to provide
proper/adequate airow to your system. The onboard BaseBoard Management
Controller (BMC) monitors CPU, memory and motherboard environment tempera-
tures for fan control and PC health management.
Note: To avoid possible system overheating, please be sure to provide
adequate airow to your system.
System Resource Alert
This feature is available when the system is used with SuperDoctor®5 in the
Windows OS environment or used with SuperDoctor II in Linux. SuperDoctor
is used to notify the user of certain system events. For example, you can also
congure SuperDoctor to provide you with warnings when the system temperature,
CPU temperatures, voltages and fan speeds go beyond predened thresholds.

1-12
A1SAi & A1SRi Series Motherboard User’s Manual
1-5 ACPI Features
ACPI stands for Advanced Conguration and Power Interface. The ACPI specica-
tion denes a exible and abstract hardware interface that provides a standard
way to integrate power management features throughout a PC system, including
its hardware, operating system and application software. This enables the system
to automatically turn on and off peripherals such as CD-ROMs, network cards, hard
disk drives and printers.
In addition to enabling operating system-directed power management, ACPI also
provides a generic system event mechanism for Plug and Play, and an operating
system-independent interface for conguration control. ACPI leverages the Plug and
Play BIOS data structures, while providing a processor architecture-independent
implementation that is compatible with Windows 7, Windows 8, and Windows 2008
Operating Systems. A1SAi/A1SRi Series motherboards support S0 and S5 only.
1-6 Power Supply
As with all computer products, a stable power source is necessary for proper and
reliable operation. It is even more important for processors that have high CPU
clock rates.
Note 1: The A1SAi and A1SRi Series motherboard alternatively supports
a 4-pin 12V DC input power supply for embedded applications. The 12V
DC input is limited to 12A by design. It provides up to 144W power input
to the motherboard. Please keep onboard power use within the power
limits specied above. Over-current DC power use may cause damage
to the motherboard!
Note 2: Do not use the 4-pin DC power at J1 when the 24-pin ATX Power
at JPW1 is connected to the power supply. Do not plug in both J1 and
JPW1 at the same time.
It is strongly recommended that you use a high quality power supply that meets ATX
power supply Specication 2.02 or above. It must also be SSI compliant. (For more
information, please refer to the website at http://www.ssiforum.org/). Additionally, in
areas where noisy power transmission is present, you may choose to install a line lter
to shield the computer from noise. It is recommended that you also install a power
surge protector to help avoid problems caused by power surges.