Supero B1SA4-2750F, B1SA4-2550F User Manual

USER’S MANUAL

Revision 1.0

B1SA4-2750F
B1SA4-2550F

Manual Revision 1.0

Release Date: March 6, 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

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,
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 web site 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 manufacturer and 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 B
digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reason­able protection against harmful interference in a residential installation. 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 interference with radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by turn­ing the equipment off and on, you are encouraged to try to correct the interference by one or more
of the following measures:

•Reorient or relocate the receiving antenna.

•Increase the separation between the equipment and the receiver.

•Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

•Consult the dealer or an experienced radio/television technician for help.

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.

iii

Preface

Preface

This manual is written for system integrators, PC technicians and

knowledgeable PC users. It provides information for the installation and use of the

B1SA4-2750F/B1SA4-2550F Motherboard.

About This Motherboard

The B1SA4-2750F/B1SA4-2550F Motherboard is a micro cloud mother-

board optimized for the Supermicro Microblade chassis. The motherboard supports

four Intel® ATOM C2750 (8 Cores) or four Intel ATOM C2550 (4 Cores) CPUs.

Each of the four nodes of the B1SA4-2750F/B1SA4-2550F supports up to 32GB of

memory, and features two SATA 3.0 ports on the backplane, two Serdes 2.5Gb/s,

and an ASPEED BMC on board. The motherboard supports a total of eight SATA

3.0 ports, eight 2.5Gb/s Serdes, and one 1Gb/s Serdes for IPMI support, all con-

nections to the backplane.

Please refer to our website (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mother-

board, and provides detailed information on the Intel Patsburg chipset.

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 the UEFI BIOS Recovery instructions.

iv

B1SA4-2750F/B1SA4-2550F 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:

Danger/Caution: Instructions to be strictly followed to prevent catastrophic

system failure or to avoid bodily injury

Warning: Critical information to prevent damage to the components or

data loss.

Important: Important information given to ensure proper system installa-

tion or to relay safety precautions.

Note: Additional Information given to differentiate various models or pro-

vides information for correct system setup.

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: [e-mail] (General Information)

[e-mail] (Technical Support)

Web Site: www.supermicro.com

Europe

Address: Super Micro Computer B.V.

Het Sterrenbeeld 28, 5215 ML

's-Hertogenbosch, The Netherlands

Tel: [phone]

Fax: [phone]

Email: [e-mail] (General Information)

[e-mail] (Technical Support)

[e-mail] (Customer Support)

Asia-Pacic

Address: Super Micro Computer, Inc.

4F, No. 232-1, Liancheng Rd.

Chung-Ho 235, Taipei County

Taiwan, R.O.C.

Tel: [phone]

Fax: [phone]

Web Site: www.supermicro.com.tw

Technical Support:

Email: [e-mail]

Tel: [phone]

vi

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

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

1-2 Motherboard Features ..................................................................................... 1-6

1-3 Special Features ............................................................................................. 1-9

Recovery from AC Power Loss ....................................................................... 1-9

1-4 PC Health Monitoring ...................................................................................... 1-9

Fan Status Monitor with Firmware Control .................................................... 1-9

Environmental Temperature Control ............................................................... 1-9

System Resource Alert ................................................................................... 1-9

1-5 ACPI Features ............................................................................................... 1-10

Slow Blinking LED for Suspend-State Indicator ........................................... 1-10

1-6 Power Supply ................................................................................................ 1-10

1-7 Advanced Power Management ......................................................................1-11

Intel® Intelligent Power Node Manager (NM) .................................................1-11

Manageability Engine (ME) ............................................................................1-11

1-8 Introduction to the BMC (Baseboard Management Controller) .....................1-11

Chapter 2

Installation

2-1 Static-Sensitive Devices .................................................................................. 2-1

Precautions ..................................................................................................... 2-1

Unpacking ....................................................................................................... 2-1

2-2 System Memory .............................................................................................. 2-2

How to Install SODIMMs ................................................................................. 2-2

Memory Support .............................................................................................. 2-2

Memory Population Guidelines ....................................................................... 2-3

The SO DIMM Socket ..................................................................................... 2-4

2-3 Motherboard Installation .................................................................................. 2-5

Tools Needed .................................................................................................. 2-5

vii

Table of Contents

Location of Mounting Holes ............................................................................ 2-5

Installing the Motherboard .............................................................................. 2-7

2-4 Connecting Cables & Optional Devices .......................................................... 2-8

I/O Edge Connector ................................................................................... 2-8

Power Edge Connector .............................................................................. 2-8

KVM Connector (JKVM1~4) ....................................................................... 2-9

SATA Connector (J20) ................................................................................ 2-9

2-5 Jumper Settings ............................................................................................ 2-10

Explanation of Jumpers ................................................................................ 2-10

Watch Dog Reset (JWD1~4) .................................................................... 2-10

Clear CMOS (JBT1~4) ..............................................................................2-11

2-6 Onboard Indicators .........................................................................................2-11

BMC Heartbeat (LED1~4) .........................................................................2-11

Chapter 3

Troubleshooting

3-1 Troubleshooting Procedures ........................................................................... 3-1

Before Power On ............................................................................................ 3-1

No Power ........................................................................................................ 3-1

No Video ......................................................................................................... 3-2

Memory Errors ............................................................................................... 3-2

WhentheSystemLosestheSetupConguration .......................................... 3-2

3-2 Technical Support Procedures ........................................................................ 3-3

3-3 Frequently Asked Questions ........................................................................... 3-4

3-5 Returning Merchandise for Service................................................................. 3-5

Chapter 4

BIOS

4-1 Introduction ...................................................................................................... 4-1

Starting BIOS Setup Utility .............................................................................. 4-1

HowToChangetheCongurationData ......................................................... 4-1

How to Start the Setup Utility ......................................................................... 4-2

4-2 Main Setup ...................................................................................................... 4-2

The following Main menu items will display: .............................................. 4-3

System Date/System Time ........................................................................ 4-3

Supermicro A1SAi & A1SRi Series ............................................................ 4-3

Version ........................................................................................................4-3

Build Date ................................................................................................... 4-3

Memory Information ................................................................................... 4-3

viii

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

Total Memory .............................................................................................. 4-3

4-3 AdvancedSetupCongurations...................................................................... 4-4



Boot Feature ................................................................................................. 4-4

Quiet Boot .................................................................................................. 4-4

AddOn ROM Display Mode ........................................................................ 4-4

Bootup Num-Lock ....................................................................................... 4-4

Wait For 'F1' If Error ................................................................................... 4-5

Interrupt 19 Capture ................................................................................... 4-5



PowerConguration ..................................................................................... 4-5

Watch Dog Function ................................................................................... 4-5

Power Button Function ............................................................................... 4-5

Restore on AC Power Loss ........................................................................ 4-5

WOL (Wake-On_LAN) Support .................................................................. 4-5



CPUConguration ....................................................................................... 4-6

Clock Spread Spectrum ............................................................................ 4-6

EIST (GV3) ................................................................................................. 4-6

P-STATE Coordination ............................................................................... 4-6

CPU C-States ............................................................................................. 4-7

Package C-State limit ................................................................................. 4-7

Enhanced Halt State (C1E) (Available when "CPU C-States" is set to

Enabled) ..................................................................................................... 4-7

ACPI C2 (Available when "CPU C-States" is set to Enabled) ................... 4-7

Monitor/Mwait ............................................................................................. 4-7

L1 Prefetcher (Available when supported by the CPU) ............................. 4-7

L2 Prefetcher (Available when supported by the CPU) ............................. 4-7

ACPI 3.0 T-States (Available when "CPU C-States" is set to Enabled) .... 4-7

Fast String .................................................................................................. 4-8

Machine Check ........................................................................................... 4-8

Max CPUID Value Limit.............................................................................. 4-8

Execute Disable Bit (Available if supported by the OS & the CPU) .......... 4-8

VMX (Available when supported by the CPU) ........................................... 4-8

BIST Selection (Available when supported by the CPU) ........................... 4-8

MTRR (Memory Type Range Register) Default as Uncacheable .............. 4-8

Extended APIC ........................................................................................... 4-8

AES-NI ........................................................................................................ 4-9

PECI Enable ............................................................................................... 4-9

ix

Table of Contents

PECI Trusted .............................................................................................. 4-9

PECI SMBus Speed ................................................................................... 4-9

Turbo (Available if Intel® EIST technology is Enabled) ............................. 4-9

RAPL .......................................................................................................... 4-9

MSR 606 PKG_POWER_SKU_UNIT ........................................................ 4-9

MSR 610 PKG_TURBO_PWR_LIM ........................................................... 4-9

MSR 670 PKG_TURBO_CFG1 .................................................................. 4-9

MSR 672_TURBO_WKLD_CFG2 .............................................................. 4-9

CPU Core Ratio ....................................................................................... 4-10



ChipsetConguration ................................................................................. 4-10



North Bridge ............................................................................................... 4-10

Fast Boot .................................................................................................. 4-12

Memory Frequency .................................................................................. 4-12

Memory Channels .................................................................................... 4-12

MRC (Maximal Ratio Combining) Debug Messages ............................... 4-12

DDR Voltage ............................................................................................. 4-12

Fine DDR Voltage .................................................................................... 4-12

CKE Power Down .................................................................................... 4-13

ECC (Error Correctable Correction) ........................................................ 4-13

Faulty Part Tracking ................................................................................ 4-13

On Correctable Faulty Part ...................................................................... 4-13

Patrol Scrub Enable ................................................................................. 4-13

Patrol Scrub Period .................................................................................. 4-13

Demand Scrub Enable ............................................................................ 4-13

AB Segments In DRAM ........................................................................... 4-13

E Segment In DRAM ................................................................................ 4-14

F Segment In DRAM ................................................................................ 4-14

ZQ Calibration .......................................................................................... 4-14

Rank Margin Tool ..................................................................................... 4-14

CMD Rate (Command Rate) .................................................................... 4-14

Out-of-Order Memory Processing ............................................................ 4-14

Out-of-Order Aging Threshold .................................................................. 4-14

Dynamic Self Refresh .............................................................................. 4-14

PMOP Value for PCO ............................................................................... 4-15

PMOP Value for PCX ............................................................................... 4-15

Per-Bit Margins ......................................................................................... 4-15

Open Page Policy Timer .......................................................................... 4-15

Memory Thermal ...................................................................................... 4-15

x

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

Scrambler ................................................................................................. 4-15

Slow Power Down Exit ............................................................................. 4-15

Verf Override Enable ................................................................................ 4-15

South Bridge ............................................................................................. 4-16

Legacy USB Support ................................................................................ 4-16

XHCI Hand-Off ......................................................................................... 4-16

EHCI Hand-Off ......................................................................................... 4-16

USB Mass Storage Driver Support .......................................................... 4-17

USB Hardware Delays and Time-Outs .................................................... 4-17

USB Transfer Time-Out ............................................................................ 4-17

Device Reset Time-Out ............................................................................ 4-17

Device Power-Up Delay ........................................................................... 4-17



SATAConguration .................................................................................... 4-17

SATA 3 Controller ..................................................................................... 4-17

SATA 3 Controller ..................................................................................... 4-17

SATA Mode ............................................................................................... 4-18

LPM (Link Power Management)............................................................... 4-18

Overwrite SIR Values ............................................................................... 4-18

SATA Port 0/SATA Port 1 ......................................................................... 4-18

Spin Up ..................................................................................................... 4-18

Hot Plug .................................................................................................... 4-18

External Device ........................................................................................ 4-18

Mechanical Switch .................................................................................... 4-18

PCIe/PCI/PnPConguration ...................................................................... 4-18

PCI Latency Timer .................................................................................... 4-18

VGA Palette Snoop .................................................................................. 4-19

PERR# Generation ................................................................................... 4-19

SERR# Generation ................................................................................... 4-19

System Error Logging .............................................................................. 4-19

Maximum Payload .................................................................................... 4-19

Maximum Read Request .......................................................................... 4-19

ASPM Support .......................................................................................... 4-19

Above 4G Decoding (Available if the system supports 64-bit PCI decoding)
4-19

Launch Storage OPROM Policy............................................................... 4-19

PCIe Slot 1 OPROM ................................................................................ 4-20

Launch Video OPROM Policy .................................................................. 4-20

VGA Priority .............................................................................................. 4-20

Launch Network OPROM Policy .............................................................. 4-20

xi

Onboard LAN Option ROM Select ........................................................... 4-20

Load Onboard LAN1 OPROM / Load Onboard LAN2 OPROM .............. 4-20



ACPI Settings ............................................................................................ 4-20

High Precision Event Timer ...................................................................... 4-20

WHEA Support ......................................................................................... 4-21

AST2400 Super IO Chip ....................................................................... 4-21



SerialPort0Conguration/SerialPort1Conguration ....................... 4-21

Serial Port ................................................................................................. 4-21

Device Settings ........................................................................................ 4-21

Change Settings ....................................................................................... 4-21

Device Mode ............................................................................................ 4-21

Serial Port 2 Attribute (Available for Serial Port 1 only) .......................... 4-21



Serial Port Console Redirection ................................................................. 4-22

COM1 Console Redirection, COM2/SOL Console Redirection ............... 4-22

Console Redirection ................................................................................. 4-22

Console Redirection Settings..................................................................... 4-22

Serial Port for Out-of-Band Management/Windows Emergency Management

Services (EMS) ........................................................................................ 4-23

Console Redirection (for EMS) ................................................................ 4-23

4-4 Event Logs .................................................................................................... 4-25



Change SMBIOS Event Log Settings ........................................................ 4-25

Enabling/Disabling Options ...................................................................... 4-25

SMBIOS Event Log .................................................................................. 4-25

Erasing Settings ....................................................................................... 4-25

Erase Event Log ....................................................................................... 4-25

When Log is Full ...................................................................................... 4-25

SMBIOS Event Long Standard Settings .................................................. 4-25

Log System Boot Event ........................................................................... 4-25

MECI ......................................................................................................... 4-26

METW ....................................................................................................... 4-26

Customer Options .................................................................................... 4-26

Log OEM Codes ....................................................................................... 4-26

Convert OEM Codes ................................................................................ 4-26



View SMBIOS Event Log ........................................................................... 4-26

4-5 IPMI ............................................................................................................... 4-27

IPMI Firmware Revision ........................................................................... 4-27

Status BMC (Baseboard Management Cont ............................................ 4-27

BMCNetworkConguration ...................................................................... 4-27

BMC Network Congifuration ..................................................................... 4-27

Table of Contents

xii

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

LANChannel1:Thisfeatureallowstheusertocongurethesettingfor

LAN Port 1. ............................................................................................... 4-27

CongurationAddressSource ................................................................. 4-27

4-6 Security Settings ........................................................................................... 4-29

Administrator Password .......................................................................... 4-29

User Password ......................................................................................... 4-29



Secure Boot Menu ..................................................................................... 4-29

Secure Boot Mode ................................................................................... 4-29



Key Management .................................................................................. 4-30

Factory Default Key Provision .................................................................. 4-30

Enroll All Factory Default Keys ............................................................. 4-30

Save All Secure Boot Variables ............................................................... 4-30

Platform Key (PK) ................................................................................... 4-30

Delete PK (Platform Keys) ....................................................................... 4-30

Set New PK (Platform Keys) ................................................................ 4-30

Key Exchange Key DataBase (KEK) ....................................................... 4-30

Save Key Exchange Key DataBase (KEK) .......................................... 4-30

Append Key Exchange Key (KEK) ....................................................... 4-30

Authorized Signature Database (DB) ....................................................... 4-30

Set New DB .......................................................................................... 4-30

Append DB ........................................................................................... 4-31

Forbiden Signature Database (DBX) ....................................................... 4-31

Set New DBX ........................................................................................ 4-31

Append DBX ......................................................................................... 4-31



Image Execution Policy ......................................................................... 4-31

Internal FV ................................................................................................ 4-31

Option ROM ............................................................................................. 4-31

Removable Media .................................................................................... 4-31

Fixed Media .............................................................................................. 4-31

4-7 Boot Settings ................................................................................................. 4-32

Boot Option Priorities ............................................................................... 4-32

4-8 Save & Exit ................................................................................................... 4-33

Discard Changes and Exit ...................................................................... 4-33

Save Changes and Reset ........................................................................ 4-33

Save Options ............................................................................................ 4-33

Save Changes .......................................................................................... 4-33

Discard Changes ...................................................................................... 4-33

xiii

Restore Defaults ....................................................................................... 4-34

Save As User Defaults ............................................................................. 4-34

Restore User Defaults .............................................................................. 4-34

Boot Override ........................................................................................... 4-34

Appendix A

BIOS Error Beep Codes

A-1 BIOS Error Beep Codes .................................................................................A-1

Appendix B

Software Installation Instructions

B-1 Installing Drivers ..............................................................................................B-1

B-2 ConguringSuperDoctor® III .......................................................................... B-2

Appendix C

UEFI BIOS Recovery Instructions

An Overview to the UEFI BIOS ..................................................................................C-1

How to Recover the UEFI BIOS Image (-the Main BIOS Block) ...............................C-1

To Recover the Main BIOS Block Using a USB-Attached Device .............................C-1

Table of Contents

xiv

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

Notes

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 Mainboard

•Six (6) SATA cables

•One (1) I/O shield

•One (1) Supermicro CD containing drivers and utilities

•One (1) User's Manual

1-2

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

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.

Motherboard Image

Chapter 1: Introduction

1-3

Motherboard Layout

B1SA4-F

J2

J22

JKVM2

JKVM3

JKVM4

JKVM1

MH2

MH1

J20

LED1

LED2

LED3

LED4

JBT1

JBT2

JBT3

JBT4

JWD1

JWD3

J5

JWD4

J21

J18

JWD2

Q55

MH4

MH5

MH3

C1272

P3-JBT1

P4-JBT1

P1

P2-JBT1

JWD1

P1-JWD1

P2-JWD1:

P3-JWD1

P4-JWD1

WATCH

1-2:RST

2-3:NMI

DOG

WATCH1-2:RST

2-3:NMI

DOG

WATCH

1-2:RST

2-3:NMI

DOG

DOGWATCH

2-3:NMI

1-2:RST

P4-DIMMB1

P4-DIMMA1

P3-DIMMA1

P3-DIMMB1

P2-DIMMB1

P2-DIMMA1

P1-DIMMB1

P1-DIMMA1

CPU2

CMOS

CLEAR

CMOSCLEAR

CMOS

CLEAR

CMOS

CLEAR

Important Notes to the User

• See Chapter 2 for detailed information on jumpers, I/O ports and JF1

front panel connections.

• "▪" indicates the location of "Pin 1".

• Jumpers not indicated are for testing only.

1-4

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

B1SA4-F

J2

J22

JKVM2

JKVM3

JKVM4

JKVM1

MH2

MH1

J20

LED1

LED2

LED3

LED4

JBT1

JBT2

JBT3

JBT4

JWD1

JWD3

J5

JWD4

J21

J18

JWD2

Q55

MH4

MH5

MH3

C1272

P3-JBT1

P4-JBT1

P1

P2-JBT1

JWD1

P1-JWD1

P2-JWD1:

P3-JWD1

P4-JWD1

WATCH

1-2:RST

2-3:NMI

DOG

WATCH1-2:RST

2-3:NMI

DOG

WATCH

1-2:RST

2-3:NMI

DOG

DOGWATCH

2-3:NMI

1-2:RST

P4-DIMMB1

P4-DIMMA1

P3-DIMMA1

P3-DIMMB1

P2-DIMMB1

P2-DIMMA1

P1-DIMMB1

P1-DIMMA1

CPU2

CMOS

CLEAR

CMOSCLEAR

CMOS

CLEAR

CMOS

CLEAR

Motherboard Quick Reference

JBT1

CPU1

P1-DIMMA1

P1-DIMMB1

JWD1

LED1

JKVM1

JBT4

CPU4

P4-DIMMA1

P4-DIMMB1

JWD4

LED4

JKVM4

JBT2

CPU2

P2-DIMMA1

P2-DIMMB1

JWD2

LED2

JKVM2

JBT3

CPU3

P3-DIMMA1

P3-DIMMB1

JWD3

LED3

JKVM3

J20

POWER

I/O

Chapter 1: Introduction

1-5

Jumper Name Description Default

JBT1~JBT4 CMOS Clear

(See Chapter 2 in User
Manual)

JWD1~JWD4 Watch Dog Timer RST/NMI Selection Pins 1-2 (Reset)

Connector Name Description

LED1~LED4 BMC Heartbeat LED

JKVM1~JKVM4 USB / VGA / UART Interface

CPU1~CPU4 Onboard CPU

P1~P4 DIMMA1~DIMMB1 SO DIMM Slots

J20 SATA Interface Connector

POWER Back Panel Edge Connector (SATA/Power)

I/O Back Panel Edge Connector (I/O, Network)

Motherboard Jumpers and Connectors

1-6

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

1-2 Motherboard Features

CPU One Intel® ATOM C2750 (8 cores) or ATOM C2550 (4

cores) per node, total of four (4) CPUs on board.

Memory Two (2) SODIMM slots per node supports up to 32GB of

DDR3 Unbuffered, ECC SODIMM memory, up to 1600MHz.

The motherboard has eight (8) total memory slots. Sup-

ports dual-channel memory bus..

DIMM sizes

SODIMM 1GB, 2GB, 4GB, 8GB, 16GB

Network Connections

Supports networking via edge connector to backplane

Supports IPMI (per node) with heartbeat LED indicator

I/O Devices SATA Connections

SATA 2.0 Ports via onboard SATA interface

connector

USB Devices

Support via edge connector to backplane

Keyboard/Mouse

Supported via (1) KVM port, per node

Serial (COM) Ports

Support via edge connector to backplane

BIOS 32 Mb SPI AMI BIOS® SM Flash BIOS

Play and Plug APM 1.2, ACPI 1.0/2.0, USB Keyboard and
SMBIOS 2.3, RTC Wake-up

Power Conguration ACPI/ACPM Power Management

Power-on mode for AC power recovery

PC Health Monitoring CPU & Chassis Monitoring

Onboard voltage monitors for CPU cores, +3.3V, +5V, +/­12V, +3.3V Stdby, +5V Stdby, VBAT, CPU Vcore, Memory

CPU 1+1 phase switching voltage regulator

CPU/System overheat LED and control

CPU Thermal Trip support

System Management PECI(PlatformEnvironmentCongurationInterface)2.0

support

System resource alert via SuperDoctor® III

Watch Dog, NMI

Chapter 1: Introduction

1-7

CD Utilities BIOSashupgradeutility

Drivers and software for Intel® C602 chipset utilities

Other ROHS 6/6 (Full Compliance, Lead Free)

FCC A, EuP Lot 6, WHQL

Dimensions ATX form factor (11.50" x 4.7")

1-8

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

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.

Motherboard Block Diagram

Avoton

CPU1

2 x SATA 3.0

6.0 Gbit/s

2 x SerDes Ethernet

1 Gbit/s

KVM
Connector

PCIE 2.0 x1

5.0 GT/s

USB 1.0 HID

12 Mbit/s

USB 2.0 Virtual Media

480 Mbit/s

LPC Interface

NCSI

ASPEED
ASP2400

RGMII

2 x USB 2.0

480 Mbit/s

RGB

REALTEK
RTL8211E-VB-CG

DIMMA1

DIMMB1

DDR3 (CHA)

1600/1333 MHz

DDR3 (CHB)

1600/1333 MHz

MDI

CPU1_BMC_LAN

Avoton

CPU2

2 x SATA 3.0

6.0 Gbit/s

2 x SerDes Ethernet

1 Gbit/s

KVM
Connector

PCIE 2.0 x1

5.0 GT/s

USB 1.0 HID

12 Mbit/s

USB 2.0 Virtual Media

480 Mbit/s

LPC Interface

NCSI

ASPEED
ASP2400

RGMII

2 x USB 2.0

480 Mbit/s

RGB

REALTEK
RTL8211E-VB-CG

DIMMA1

DIMMB1

DDR3 (CHA)

1600/1333 MHz

DDR3 (CHB)

1600/1333 MHz

MDI

CPU2_BMC_LAN

CPU1_SATA

CPU1_SerDes_LAN

REALTEK
RTL8367MB

MDI

MDI

RGMII

RGMII

CPU1_BMC_LAN

SerDes

CPU2_BMC_LAN

CPU3_BMC_LAN

CPU4_BMC_LAN

2 x SATA 3.0

2 x SATA 3.0

2 x SATA 3.0

2 x SATA 3.0

SerDes

CPU1_SATA

CPU2_SATA

CPU3_SATA

CPU4_SATA

2 x SerDes

Gold
Finger

2 x SerDes

2 x SerDes

2 x SerDes

CPU1_SerDes_LAN

CPU2_SerDes_LAN

CPU3_SerDes_LAN

CPU4_SerDes_LAN

Avoton

CPU3

2 x SATA 3.0

6.0 Gbit/s

2 x SerDes Ethernet

1 Gbit/s

KVM
Connector

PCIE 2.0 x1

5.0 GT/s

USB 1.0 HID

12 Mbit/s

USB 2.0 Virtual Media

480 Mbit/s

LPC Interface

NCSI

ASPEED
ASP2400

RGMII

2 x USB 2.0

480 Mbit/s

RGB

DIMMA1

DIMMB1

DDR3 (CHA)

1600/1333 MHz

DDR3 (CHB)

1600/1333 MHz

CPU3_SerDes_LAN

Avoton

CPU4

2 x SerDes Ethernet

1 Gbit/s

KVM
Connector

PCIE 2.0 x1

5.0 GT/s

USB 1.0 HID

12 Mbit/s

USB 2.0 Virtual Media

480 Mbit/s

LPC Interface

NCSI

ASPEED
ASP2400

2 x USB 2.0

480 Mbit/s

RGB

DIMMA1

DIMMB1

DDR3 (CHA)

1600/1333 MHz

DDR3 (CHB)

1600/1333 MHz

CPU4_SerDes_LAN

CPU3_SATA

PI2EQX6804

CPU3_BMC_LAN

CPU4_SATA

PI2EQX6804

2 x SATA 3.0

6.0 Gbit/s

CPU4_BMC_LAN

RGMII

Gold
Finger

BackPlane

nip 73x2nip 04x2

CPU2_SATA

CPU2_SerDes_LAN

Chapter 1: Introduction

1-9

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

cores, +3.3V, +5V, +/-12V, +3.3V Stdby, +5V Stdby, VBAT, CPU Vcore, Memory.

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denethesensitivity

of the voltage monitor.

Fan Status Monitor with Firmware Control

PC health monitoring in the BIOS can check the RPM status of the cooling fans. The

onboard CPU and chassis fans are controlled by Thermal Management via BIOS

(under the Hardware Monitoring section in the Advanced Setting).

Environmental Temperature Control

The thermal control sensor monitors the CPU temperature in real time and will turn

onthethermalcontrolfanwhenevertheCPUtemperatureexceedsauser-dened

threshold. The overheat circuitry runs independently from the CPU. Once the ther-

mal sensor detects that the CPU temperature is too high, it will automatically turn

on the thermal fans to prevent the CPU from overheating. The onboard chassis

thermal circuitry can monitor the overall system temperature and alert the user when

the chassis temperature is too high.

Note: To avoid possible system overheating, please be sure to provide

adequateairowtoyoursystem.

System Resource Alert

1-10

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

This feature is available when the system is used with Supero Doctor III in the

Windows OS environment or used with Supero Doctor II in Linux. Supero Doctor is

usedtonotifytheuserofcertainsystemevents.Forexample,youcanalsocongure

Supero Doctor to provide you with warnings when the system temperature, CPU

temperatures,voltagesandfanspeedsgobeyondpredenedthresholds.

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 XP, Windows Vista and Windows

2008 Operating Systems.

Slow Blinking LED for Suspend-State Indicator

When the CPU goes into a suspend state, the chassis power LED will start to blink

to indicate that the CPU is in suspend mode. When the user presses any key, the

CPU will "wake up", and the LED will automatically stop blinking and remain on.

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. This motherboard draws power from the backplane. Make sure that power

coming from the backplane and chassis is enough to power this motherboard and

the other nodes that reside in the same chassis.

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 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.

Chapter 1: Introduction

1-11

1-7 Advanced Power Management

Intel® Intelligent Power Node Manager (NM)

The Intel® Intelligent Power Node Manager (IPNM) provides your system with

real-timethermalcontrolandpowermanagementformaximumenergyefciency.

AlthoughIPNMSpecicationVersion1.5issupported bytheBMC(Baseboard

Management Controller), your system must also have IPNM-compatible Manage-

abilityEngine(ME)rmwareinstalledtousethisfeature.

Manageability Engine (ME)

The Manageability Engine, which is an ARC controller embedded in the IOH (I/O

Hub), provides Server Platform Services (SPS) to your system. The services

provided by SPS are different from those proveded by the ME on client platforms.

1-8 Introduction to the BMC (Baseboard Management
Controller)

This motherboard incorporates the ASPEED AST2400 Graphics and BMC.

The AST2400 is ASPEED's 5th generation of Advanced PCIe Graphics & Remote

Management Processor, with a mainstream double data rate memory migrating from

DDR2 to DDR3. The AST2400, provides the motherboard with DDR3 support, with

the best cost/performance ratio. The AST2400 is integrated with PCIe 1x support.

In addition to the the AST2400's advanced BMC features. The chip's PCIe 2D

VGA provides servers with a local display, without the added cost and with minimal

pin counts. The embedded ARM9 and DDR3 is clocked at 400MHz to meet the

increasing performance requirements of today's server applications.

1-12

B1SA4-2750F/B1SA4-2550F Motherboard User’s Manual

Notes

Chapter 2: Installation

2-1

Chapter 2

Installation

2-1 Static-Sensitive Devices

Electrostatic-Discharge (ESD) can damage electronic com ponents. To

avoid damaging your system board, it is important to handle it very

carefully. The following measures are generally sufcient 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.