A1SA2-2750F
A1SA2-2550F
USER’S MANUAL
Revision 1.0
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 documentation, 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 1.0
Release Date: April 23, 2014
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 © 2014 by Super Micro Computer, Inc.
All rights reserved.
Printed in the United States of America
Preface
This manual is written for system integrators, IT professionals, and
knowledgeable end-users. It provides information for the installation and use of the
A1SA2-2750/2550F motherboard.
About This Motherboard
The A1SA2-2750/2550F motherboard supports a next-generation Intel®
S2xxx SoC (System-on-a-Chip) processor in a BGA1283 package. With a S2xxx
Series processor built in, the A1SA2-2750/2550F motherboard supports cutting-
edge technology such as Intel's Virtualization Technology, Turbo Boost Technology,
offering unprecedented enhancements to data integrity, internet security, network
communication, system performance, and power efciency and scalability. This
motherboard is optimized for network applications, web hosting, storage/server
applications, and micro-cloud computing. It is ideal for communications systems,
embedded solutions, or 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
Preface
Chapter 1 describes the features, specications and performance of the mother-
board, and provides detailed information on the Intel S2xxx 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.
iii
A1SA2-2750/2550F Motherboard User’s Manual
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.
iv
Contacting Supermicro
Headquarters
Address: Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: +1 (408) 503-8000
Fax: +1 (408) 503-8008
Email: marketing@supermicro.com (General Information)
support@supermicro.com (Technical Support)
Web Site: www.supermicro.com
Europe
Address: Super Micro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel: +31 (0) 73-6400390
Fax: +31 (0) 73-6416525
Email: sales@supermicro.nl (General Information)
support@supermicro.nl (Technical Support)
rma@supermicro.nl (Customer Support)
Web Site: www.supermicro.com
Contacting Supermicro
Asia-Pacic
Address: Super Micro Computer, Inc.
3F, No. 150, Jian 1st Rd.
Zhonghe Dist., New Taipei City 235
Taiwan (R.O.C)
Tel: +886-(2) 8226-3990
Fax: +886-(2) 8226-3992
Email: support@supermicro.com.tw
Web Site: www.supermicro.com.tw
v
A1SA2-2750/2550F Motherboard User’s Manual
Table of Contents
Preface
Chapter 1 Introduction
1-1 Overview ......................................................................................................... 1-1
1-2 Processor Overview ....................................................................................... 1-9
1-3 Special Features ........................................................................................... 1-10
1-4 PC Health Monitoring .................................................................................... 1-10
1-5 ACPI Features ................................................................................................1-11
1-6 Power Supply .................................................................................................1-11
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 ........................................................................... 2-7
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
Backplane I/O Panel ..................................................................................... 2-10
Ethernet Ports ...........................................................................................2-11
Universal Serial Bus (USB) ...................................................................... 2-12
Port 80 Header ......................................................................................... 2-12
Keyboard/VGA/Mouse .............................................................................. 2-13
2-7 Jumper Settings ............................................................................................ 2-14
Explanation of Jumpers ................................................................................ 2-14
LAN Ports Enable/Disable ........................................................................ 2-14
CMOS Clear ............................................................................................. 2-15
VGA Enable .............................................................................................. 2-16
Watch Dog Timer Enable ......................................................................... 2-16
vi
Table of Contents
2-8 Onboard Indicators ........................................................................................ 2-17
Overheat/PWR Fail/Fan Fail LED ............................................................ 2-17
BMC Heartbeat LED ............................................................................... 2-17
Unit Identication LED .............................................................................. 2-18
Onboard Power LED ................................................................................ 2-19
2-9 SATA Connections ......................................................................................... 2-20
Serial ATA Ports........................................................................................ 2-20
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 Conguration ....................................................... 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 ...................................................................................................... 4-2
4-3 Advanced Setup Congurations...................................................................... 4-4
4-4 IPMI Conguration ........................................................................................ 4-18
4-4 Event Logs .................................................................................................... 4-20
4-5 Security Settings ........................................................................................... 4-22
4-6 Boot Settings ................................................................................................. 4-25
4-7 Save & Exit ................................................................................................... 4-27
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
vii
A1SA2-2750/2550F Motherboard User’s Manual
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
Appendix D Dual Boot Block
D-1 Introduction ......................................................................................................D-1
D-2 Steps to Reboot the System by Using Jumper JBR1 ....................................D-2
viii
Chapter 1: Introduction
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
•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.
Supermicro 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.
1-1
A1SA2-2750/2550F User’s Manual
A1SA2-2750/2550F Motherboard Image
Note: 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.
1-2
A1SA2-2750/2550F Motherboard Layout
JKVM1
USB0/1
Down:
JPL2
JPL1
JWD2
J38
JPG2
JPG1
JP2
Up:
P2 LAN 2/1
P1 LAN 2/1
MAC CODE
QL1183
QL1183
MAC CODE
IPMI_LAN
88E1543
BIOS
CPU2 IPMI
BAR CODE
A
LED2
SW2
NODE
SW
C
AST2400
Firmware
LED7 (Top Side)
PWR
LED8 (Bottom Side)
PLED2
PLED1
UID
J8
Chapter 1: Introduction
JBT2
CPU2
VBAT
P1-DIMMA2
P1-DIMMB1
P1-DIMMA1
BIOS
LICENSE
CPU1 IPMI
BAR CODE
BIOS
B1
P1-DIMMB2
BIOS
LICENSE
BAR CODE
Firmware
JWD1
1
J37
LED1
P2-DIMMB1
P2-DIMMA2
P2-DIMMA1
P2-DIMMB2
JBT1
A1SA2-2550F
REV:1.01
DESIGNED IN USA
CPU1
AST2400
JP1
1
J10
1
J4
1
J20
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. This motherboard supports Turbo Boost Technology, offering turbo-boost
capabilities to maximize system performance for server platforms.
4. In 24-node Micro Cloud systems, the IPMI feature cannot synchronize the
FAN mode in all nodes.
1-3
A1SA2-2750/2550F User’s Manual
A1SA2-2750/2550F Motherboard Quick Reference
JKVM1
USB0/1
Firmware
Up:
Down:
MAC CODE
JPL2
JPL1
JWD2
J38
JPG2
JPG1
JP2
P2 LAN 2/1
P1 LAN 2/1
QL1183
QL1183
IPMI_LAN
MAC CODE
88E1543
BIOS
CPU2 IPMI
BAR CODE
NODE
A
LED2
SW2
SW
C
AST2400
PLED1
PWR
LED7 (Top Side)
LED8 (Bottom Side)
PLED2
UID
J8
JBT2
CPU2
VBAT
P1-DIMMA2
P1-DIMMB2
P1-DIMMB1
P1-DIMMA1
BIOS
LICENSE
CPU1 IPMI
BAR CODE
BAR CODE
BIOS
1
J37
LED1
B1
BIOS
LICENSE
Firmware
JWD1
P2-DIMMB1
P2-DIMMA2
P2-DIMMA1
P2-DIMMB2
JBT1
A1SA2-2550F
REV:1.01
DESIGNED IN USA
CPU1
AST2400
JP1
1
J10
1
J4
1
J20
1-4
Chapter 1: Introduction
A1SA2-2750/2550F Motherboard Connectors/Jumpers/LEDs
Jumper Description Default
JBT1/JBT2 CMOS Clear for Node 1 (JBT1) and Node 2 (JBT2) Off (Normal)
JPG1/JPG2 VGA Enable for Node 1 (JPG1) and Node 2 (JPG2) Pins 1-2 (Enabled)
JPL1/JPL2 Ethernet LAN Ports Enable for Node 1 (JPL1) and Node 2
(JPL2)
JWD1/JWD2 Watch Dog Enable for Node 1 (JWD1) and Node 2 (JWD2) Pins 1-2 (Reset)
Connector Description
Battery Onboard Battery (JBAT1)
J20 HDD Backplane Slot for SATA 3.0 6Gb/s (4 connections) and power
supply
J37 Port 80 connector for Node 1 (P1-PORT80)
J38 Port 80 connector for Node 2 (P2-PORT80)
JKVM1 USB 2.0 (x2)/VGA (Monitor)/COM (UART) connector for front I/O support
for remote console redirection or network interface.
IPMI_LAN IPMI Dedicated LAN for Node 1 and Node 2
P1-LAN1/LAN2 Gigabit LAN Ethernet (RJ45) Ports 1/2 for Node 1
P2-LAN1/LAN2 Gigabit LAN Ethernet (RJ45) Ports 1/2 for Node 2
PWR Power switch for Node 1 and Node 2
SW2 Node switch between Node 1 and Node 2
USB 2.0 Front Panel USB 2.0 (See JKVM1)
Pins 1-2 (Enabled)
LED Description Color/State Status
LED1 BMC Heartbeat LED for Node 1 Green: Blinking BMC: Normal
LED2 BMC Heartbeat LED for Node 2 Green: Blinking BMC: Normal
LED7 (UID) Unit Identier LED Blue: On Blue: Unit Identied
LED8 Overheat/PWR Fail/ Fan Fail LED Red: Solid on
Blinking
PLED1 Power LED for Node 1 Green: On
Orange: Standby
PLED2 Power LED for Node 2 Green: On
Orange: Standby
On: Overheat
Blinking: PWR Fail or Fan Fail
Node 1 PWR On/Standby
Node 2 PWR On/Standby
1-5
A1SA2-2750/2550F User’s Manual
Motherboard Features
CPU Single Intel ® S2xxx Tri-Gate 22nm SoC in the BGA1283
1283 package
Each SoC supports 4 or 8 cores
Memory Supports up to 64GB of DDR3 ECC VLP UDIMM
1600MHz in eight memory slots.
Dual-Channel memory or Single-Channel w/x8 data width,
Single or Dual Rank memory
DIMM sizes
DIMMs 2 GB, 4GB, 8GB, and 16GB
Network Connections S2xxx Series SoC I354 built-in Quad-port GbE controllers
I/O Devices SATA Connections
BIOS 128 Mb AMI BIOS ® SPI EEPROM BIOS
Power Conguration ACPI/ACPM Power Management
PC Health Monitoring Onboard Voltage Monitoring
(MACs) w/Marvell 88E1543 Transceiver
Four (4) RJ-45 rear I/O panel connectors with Link and
Activity LEDs
One (1) IPMI LAN Connector (Realtek 8211E-PHY)
SATA 3.0 (6Gb/s) Four (4) SATA 3.0 (I-SATA 0/1)
RAID 0, 1
USB Devices
Two (2) USB 2.0 on the rear I/O panel (USB 0/1)
Serial (COM) Ports
One (1) COM Port on the rear I/O panel (COM1)
One (1) front accessible Serial port header (COM2)
IPMI 2.0
IPMI 2.0 supported by Aspeed AST2400 BMC (Baseboard Management Controller)
VGA (Graphics Display)
One (1) VGA Port on the rear I/O panel supported by the
Aspeed AST2400 VGA Controller
Plug and Play, DMI 2.0, PCI 2.2, ACPI 5.0, USB Keyboard, SMBIOS 2.7, and UEFI 2.3.1
Main Switch Override Mechanism
Power-on mode for AC power recovery
+3.3V, +5V,+12V, VBAT, VDIMM, VCORE for CPU
1-6
Chapter 1: Introduction
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 monitoring, including CPU, memory and motherboard ambient
temperatures
System Management PECI (Platform Environment Conguration 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
Operating Temperature 00-600C
Dimensions Propprietary form factor 12.75" x 4.7"
(323.85mm x 119.38mm)
Note: Please refer to Note 3 and Note 4 on page 1-3 for Intel Quickassist
technology and Turbo Boost technology support.
1-7
A1SA2-2750/2550F User’s Manual
A1SA2-2750/2550F motherboard Block Diagram
LAN1 LAN2
REAR REAR
FLASH 64Mbit
88E1543
SPI
CPU1 CPU2
AVOTON SOC
SATA 3.0
SGMII
USB [0:1]
PEG [0]
USB [2:3]
LPC
SGMII x 4
DIMMA2
CHA CHA
DIMMB2
CHB CHB
PCIE x 1
VLP DDR3
DIMMB1
VLP DDR3
VLP DDR3
SATA GEN3
Pericom
6812
SATA
re-driver
MDI SRGMII
VGA VGA
AST2400
TX/RX
LPC
(debug)
UART1
UART2
COM1
USBx2 USBx2
DIMMA1
VLP DDR3
HDD Backplane
SATA 3.0
SATA 3.0
LAN
LAN SWITCH
RTL8211E
RTL8363SB-CG
0Ohm
NI
VGA1
VGA2
COM/USB/VGA SWITCH
KVM CONNECTER
(VGA+USBx2+COM)
SATA 3.0
REAR
SATA 3.0
0Ohm
SGMII
NI
COM2
FLASH 64Mbit
SATA GEN3
Pericom
6812
SATA
re-driver
AST2400
TX/RX
(debug)
UART1
PCIE x 1
LPC
UART2
SPI
AVOTON SOC
SATA 3.0
PEG [0]
USB [2:3]
SGMII
USB [0:1]
LPC
CHB CHB
VLP DDR3
SGMII x 4
CHA CHA
VLP DDR3
DIMMB1 DIMMB2
VLP DDR3
LAN3 LAN4
88E1543
REAR
DIMMA1 DIMMA2
VLP DDR3
REAR
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 specications of each motherboard.
1-8
Chapter 1: Introduction
1-2 Processor Overview
The A1SA2-2750/2550F motherboard supports a 2nd-generation 64 -bit, Intel®
Atom™ S2xxx Tri-Gate SoC (System-on-a-Chip) processor based on low-power Sil-
vermont microarchitecture in a BGA 1283 package. Built upon the functionality and
capability of the S2xxx Series processor in the low-power 22nm microarchitecture,
the A1SA2-2750/2550F motherboard provides unprecedented enhancements to
network routing, internet security, system performance, and power efciency.
The S2xxx SoC Series processor features an Out-of-Order Execution Engine and
offers new multi-core and system fabric architecture capable of utilizing eight CPU
cores to achieve improved single-thread performance. This new SoC processor
also provides an operating range with wider dynamic power and enhanced power
management. In addition, the A1SA2-2750/2550F motherboard supports the Intel
Turbo Boost Technology, which offers turbo-boost capabilities to maximize system
performance.
Intel S2xxx Series Processor Features
The S2xxx Series processor offers the following features:
•SSE Extensions
•AES-NI
®
•Highly-Optimized Power Management Unit
•Server-Class Reliability, Availability and Serviceability (RAS)
®
•Intel
•Intel
Virtualization Technology (VTx)
®
Turbo Boost Technology
Note: Please refer to Note 3 and Note 4 on Page 1-3 for Intel® Quickassist
technology and Turbo Boost technology support.
1-9
A1SA2-2750/2550F User’s Manual
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: CPU
Vcore, VTT_CPU, VDIMM, 12V, 5V, 3.3V, 3.3V Standby, and Battery voltages.
Once a voltage becomes unstable, a warning is given, or an error message is sent
to the screen. The user can adjust the voltage thresholds to dene the sensitivity
of the voltage monitor.
Environmental Temperature Control
This motherboard came with a passive heatsink built_in. Please follow the instruc-
tions given in your system design guide or your system user manual to provide
proper/adequate airow to your system. The onbaord 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 airow 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
congure SuperDoctor to provide you with warnings when the system temperature,
CPU temperatures, voltages and fan speeds go beyond predened thresholds.
1-10
Chapter 1: Introduction
1-5 ACPI Features
ACPI stands for Advanced Conguration and Power Interface. The ACPI specica-
tion denes 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 conguration 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.
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.
It is strongly recommended that you use a high quality power supply that meets ATX
power supply Specication 2.02 or above. It must also be SSI compliant. (For more
information, please refer to the web site 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.
1-11
A1SA2-2750/2550F User’s Manual
Notes
1-12
Chapter 2: Installation
Chapter 2
Installation
2-1 Standardized Warning Statements
The following statements are industry-standard warnings, provided to warn the user
of situations which have the potential for bodily injury. Should you have questions or
experience difculty, contact Supermicro's Technical Support department for assis-
tance. Only certied technicians should attempt to install or congure components.
Read this section in its entirety before installing or conguring components in the
Supermicro chassis.
Battery Handling
Warning!
There is a danger of explosion if the battery is replaced incorrectly. Replace the
battery only with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer's instructions
電池の取り扱い
電池交換が正しく行われなかった場合、破裂の危険性があります。 交換する電池はメー
カーが推奨する型、または同等のものを使用下さい。 使用済電池は製造元の指示に従
って処分して下さい。
警告
电池更换不当会有爆炸危险。请只使用同类电池或制造商推荐的功能相当的电池更
换原有电池。请按制造商的说明处理废旧电池。
警告
電池更換不當會有爆炸危險。請使用製造商建議之相同或功能相當的電池更換原有
電池。請按照製造商的說明指示處理廢棄舊電池。
Warnung
Bei Einsetzen einer falschen Batterie besteht Explosionsgefahr. Ersetzen Sie die
Batterie nur durch den gleichen oder vom Hersteller empfohlenen Batterietyp.
Entsorgen Sie die benutzten Batterien nach den Anweisungen des Herstellers.
2-1
A1SA2-2750/2550F User’s Manual
Attention
Danger d'explosion si la pile n'est pas remplacée correctement. Ne la remplacer
que par une pile de type semblable ou équivalent, recommandée par le fabricant.
Jeter les piles usagées conformément aux instructions du fabricant.
¡Advertencia!
Existe peligro de explosión si la batería se reemplaza de manera incorrecta. Re-
emplazar la batería exclusivamente con el mismo tipo o el equivalente recomen-
dado por el fabricante. Desechar las baterías gastadas según las instrucciones
del fabricante.
!הרהזא
תנכס תמייק ץוציפ .הניקת אל ךרדב הפלחוהו הדימב הללוסה לש ףילחהל שי
גוסב הללוסה תא מ םאותה תרבח למומ ןרצי תצ .
תוללוסה קוליס תושמושמה עצבל שי .ןרציה תוארוה יפל
경고!
배터리가 올바르게 교체되지 않으면 폭발의 위험이 있습니다. 기존 배터리와 동일
하거나 제조사에서 권장하는 동등한 종류의 배터리로만 교체해야 합니다. 제조사
의 안내에 따라 사용된 배터리를 처리하여 주십시오.
Waarschuwing
Er is ontplofngsgevaar indien de batterij verkeerd vervangen wordt. Vervang de
batterij slechts met hetzelfde of een equivalent type die door de fabrikant aan-
bevolen wordt. Gebruikte batterijen dienen overeenkomstig fabrieksvoorschriften
afgevoerd te worden.
2-2
Chapter 2: Installation
Product Disposal
Warning!
Ultimate disposal of this product should be handled according to all national laws
and regulations.
製品の廃棄
この製品を廃棄処分する場合、国の関係する全ての法律・条例に従い処理する必要が
ありま す。
警告
本产品的废弃处理应根据所有国家的法律和规章进行。
警告
本產品的廢棄處理應根據所有國家的法律和規章進行。
Warnung
Die Entsorgung dieses Produkts sollte gemäß allen Bestimmungen und Gesetzen
des Landes erfolgen.
¡Advertencia!
Al deshacerse por completo de este producto debe seguir todas las leyes y regla-
mentos nacionales.
Attention
La mise au rebut ou le recyclage de ce produit sont généralement soumis à des
lois et/ou directives de respect de l'environnement. Renseignez-vous auprès de
l'organisme compétent.
רצומה קוליס
!הרהזא
ו תויחנהל םאתהב תויהל בייח הז רצומ לש יפוס קוליס .הנידמה יקוח
2-3
A1SA2-2750/2550F User’s Manual
경고!
이 제품은 해당 국가의 관련 법규 및 규정에 따라 폐기되어야 합니다.
Waarschuwing
De uiteindelijke verwijdering van dit product dient te geschieden in overeenstemming
met alle nationale wetten en reglementen.
2-2 Static-Sensitive Devices
Electrostatic-Discharge (ESD) can damage electronic com ponents. To avoid dam-
aging your system board, it is important to handle it very carefully. The following
measures are generally sufcient to protect your equipment from ESD.
Precautions
• Use a grounded wrist strap designed to prevent static discharge.
• Touch a grounded metal object before removing the board from the antistatic
bag.
• Handle the board by its edges only; do not touch its components, peripheral
chips, memory modules or gold contacts.
• When handling chips or modules, avoid touching their pins.
• Put the motherboard and peripherals back into their antistatic bags when not in
use.
• For grounding purposes, make sure your computer chassis provides excellent
conductivity between the power supply, the case, the mounting fasteners and
the motherboard.
• Use only the correct type of onboard CMOS battery. Do not install the onboard
battery upside down to avoid possible explosion.
Unpacking
The motherboard is shipped in antistatic packaging to avoid static damage. When
unpacking the board, make sure that the person handling it is static protected.
2-4
Chapter 2: Installation
2-3 Memory Support
The A1SA2-2750/2550F motherboard supports up to 64GB of DDR3 ECC VLP
UDIMM 1600MHz in eight memory slots. Populating these DIMM modules with a
pair of memor y 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.
DDR3 ECC VLP UDIMM Memory
DIMM Slots per
Channel
2 1 DDR3 VLP
2 2 DDR3 VLP
DIMMs Populat-
ed per Channel
DIMM Type POR Speeds Memory Population
UDIMM
UDIMM
1600 A1, B1 (2 DIMMs)
1600 A1, B1, A2, B2
Sequence
(4 DIMMs)
P1-DIMMA1
P1-DIMMA2
P1-DIMMB1
P1-DIMMB2
J38
Up:
Down:
MAC CODE
JPL2
JPL1
JWD2
JPG2
JPG1
JP2
JBT2
P2 LAN 2/1
P1 LAN 2/1
QL1183
QL1183
MAC CODE
IPMI_LAN
88E1543
BIOS
CPU2 IPMI
BAR CODE
CPU2
P1-DIMMA2
P1-DIMMB1
P1-DIMMA1
BIOS
LICENSE
BIOS
VBAT
P1-DIMMB2
CPU1 I PMI
BAR C ODE
BAR CODE
1
J37
JKVM1
USB0/1
SW2
NODE
SW
A
C
LED2
AST2400
B1
P2-DIMMB2
BIOS
LICENSE
Firmware
JWD1
LED1
P2-DIMMB1
P2-DIMMA2
P2-DIMMA1
JBT1
A1SA2-2550F
REV:1.01
DESIGNED IN USA
CPU1
AST2400
Firmware
LED7 (T
PWR
PLED2
PLED1
UID
J8
P2-DIMMB2
P2-DIMMB1
P2-DIMMA2
P2-DIMMA1
JP1
1
J10
1
J4
1
J20
2-5
A1SA2-2750/2550F User’s Manual
Populating Memory Modules
Note 1: Install the desired number of DIMMs into the memory slots, starting
with DIMMA1, then DIMMB1, then DIMMA2, then DIMMB2. Pay attention
to the notch along the bottom of the module to prevent incorrect DIMM
module installation.
Note 2: Insert each DIMM module vertically and snap it into place. Repeat
step 1 until you complete the memory installation. See the section below
for more details on DIMM memory installation.
Note 3: Insert only identical memory modules of the same part number
into the memory slots to ensure that only memory modules of the same
type, same speed and same capacity are used on the same motherboard.
Note 4: Be sure to use memor y 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.
Installing DIMM Memory Modules
1. Align the key on the bottom of the DIMM module against the receptive point
on the memory slot. Take note of the notches on the side of the DIMM mod-
ule, and of the locking clips on the socket to avoid causing damage.
Module Notch
Module Key
Socket Key
2. Install the DIMM module straight down into the socket until it is securely seat-
ed in the socket. The side clips will automatically lock the module into place.
Side Clips
2-6
Chapter 2: Installation
Removing Memory Modules
Use your thumbs to gently push the side clips near both ends away from the module
to release it from the socket. Once the module is loosened from the socket, pull
the DIMMs module upwards.
Note: Due to memory allocation to system devices, the amount of mem-
ory that remains available for operational use will be reduced when 4 GB
of RAM is used. The reduction in memory availability is disproportional.
See the following table for details.
Possible System Memory Allocation & Availability
System Device Size Physical Memory
Firmware Hub ash memory (System BIOS) 1 MB 3.99
Local APIC 4 KB 3.99
Area Reserved for the chipset 2 MB 3.99
I/O APIC (4 Kbytes) 4 KB 3.99
PCI Enumeration Area 1 256 MB 3.76
PCI Express (256 MB) 256 MB 3.51
PCI Enumeration Area 2 (if needed) -Aligned on 256-MB
boundary-
VGA Memory 16 MB 2.85
TSEG 1 MB 2.84
Memory available to OS and other applications 2.84
512 MB 3.01
Remaining (-Available)
(4 GB Total System
Memory)
2-7