Intel SR1500 - AXXMINIDIMM DDR-2 RAID Controller Cache Memory, SR1550, SR1550AL User Manual

Revision – 1.3

Intel order number D31982-006

ii

Intel® Server Chassis SR1550

Intel

®

Server System SR1550AL

Technical Product Specification

Intel order number D31982-006

Revision – 1.3

October 2007

Enterprise Platforms and Services Marketing

Intel® Server System SR1550AL Revision History

Revision – 1.3

Intel order number D31982-006

iii

Revision History

Date Revision

Number

Modifications

June 2006 1.0 Initial external release.
June 2007 1.1 Updated section 6.3.2
August 2007 1.2 Edited processor support and platform control section.
October 2007 1.3 Updated Table 60.

Intel® Server System SR1550AL Disclaimers

Revision – 1.3

Intel order number D31982-006

iv

Disclaimers

Information in this document is provided in connection with Intel® products. No license, express
or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document. Except as provided in Intel's Terms and Conditions of Sale for such products, Intel
assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to
sale and/or use of Intel products including liability or warranties relating to fitness for a particular
purpose, merchantability, or infringement of any patent, copyright or other intellectual property
right. Intel products are not intended for use in medical, life saving, or life sustaining applications.
Intel may make changes to specifications and product descriptions at any time, without notice.

Designers must not rely on the absence or characteristics of any features or instructions marked
"reserved" or "undefined." Intel reserves these for future definition and shall have no
responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.

The Intel® Server System SR1550AL may contain design defects or errors known as errata
which may cause the product to deviate from published specifications. Current characterized
errata are available on request.

This document and the software described in it is furnished under license and may only be used
or copied in accordance with the terms of the license. The information in this manual is
furnished for informational use only, is subject to change without notice, and should not be
construed as a commitment by Intel Corporation. Intel Corporation assumes no responsibility or
liability for any errors or inaccuracies that may appear in this document or any software that may
be provided in association with this document.

Except as permitted by such license, no part of this document may be reproduced, stored in a
retrieval system, or transmitted in any form or by any means without the express written consent
of Intel Corporation.

Intel, Pentium, Itanium, and Xeon are trademarks or regis t ered trademarks of Intel Corporation.
*Other brands and names may be claimed as the property of others.
Copyright © Intel Corporation 2007.

Intel® Server System SR1550AL Table of Contents

Revision – 1.3

Intel order number D31982-006

v

Table of Contents

1. Product Overview.................................................................................................................1

1.1 Chassis Views .........................................................................................................1

1.2 System Dimensions.................................................................. ...............................2

1.3 System Components ...............................................................................................2

1.4 System Boards/Components...................................................................................3

1.5 Control Panel Options..............................................................................................4

1.6 Hard Drive and Peripheral Bays..............................................................................6

1.7 Power Sub-system...................................................................................................7

1.8 System Cooling.............................................................................. ..........................8

1.9 System Security........................................................................ ...............................8

1.10 Rack and Cabinet Mounting Options.......................................................................8

1.11 Front Bezel Features............................................................................................ ...8

2. Power Sub-system.............................................................................................................11

2.1 Mechanical Overview.............................................................................................11

2.1.1 DC Output Connection (card edge) .......................................................................12

2.2 Single Power Supply Module Population...............................................................12

2.3 Handle and Retention Mechanism.........................................................................12

2.4 Hot-swap Support..................................................................................................13

2.5 Output Cable Harness...........................................................................................13

2.5.1 P1 – Baseboard Power Connector ........................................................................13

2.5.2 P2 – Processor Power Connector .........................................................................14

2.5.3 P3 – Power Signal Connector................................................................................14

2.5.4 P4 – Backplane Power Connector.........................................................................14

2.5.5 P5 – Mid-Plane Power Connector .........................................................................15

2.6 AC Input Requirements .........................................................................................15

2.6.1 AC Inlet Connector ................................................................................................15

2.6.2 AC Power Cord Specification Requirements.........................................................15

2.6.3 Efficiency ...............................................................................................................15

2.6.4 AC Input Voltage Specification..............................................................................16

2.6.5 AC Line Dropout / Holdup......................................................................................16

2.6.6 AC Inrush...............................................................................................................16

2.6.7 AC Line 5VSB Holdup ...........................................................................................17

2.6.8 AC Line Leakage Current......................................................................................17

2.6.9 Power Factor Correction........................................................................................17

2.7 DC Output Specification ........................................................................................17

Table of Contents Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

vi

2.7.1 Output Power / Currents........................................................................................17

2.7.2 Voltage Regulation ................................................................................................17

2.8 Protection Circuits..................................................................... .............................18

2.8.1 Over-Current Protection (OCP)..............................................................................18

2.8.2 Over Voltage Protection (OVP)..............................................................................18

2.8.3 Over Temperature Protection (OTP)......................................................................18

2.9 Power Supply Status LED .....................................................................................18

3. Cooling Subsystem............................................................................................................18

3.1 Fan Module........................................................................ ....................................18

3.2 Air Flow Support....................................................................................................18

3.2.1 Power Supply Zone ...............................................................................................18

3.2.2 Full Height Riser Zone...........................................................................................18

3.2.3 CPU / Memory / Low Profile PCI Zone ..................................................................18

3.3 Drive Bay Population.............................................................................................18

4. Platform Control.................................................................................................................18

4.1 Overview................................................................................................................18

5. System Board Interconnects.............................................................................................18

5.1 Mid-Plane............................................................................................................... 18

5.2 Bridge Board........................................................................ ..................................18

5.3 Hot-Swap SATA/SAS Backplane........................................................................... 18

6. Peripheral and Hard Drive Sub-System............................................................................18

6.1 Slimline IDE Optical Drive Bay ................................ ..................................... .........18

6.2 Hard Drive Bays.....................................................................................................18

6.2.1 Hot-swap Drive Trays............................................................................................18

6.3 Mid-Plane Options.................................................................................................18

6.3.1 Passive Mid-Plane.................................................................. ...............................18

6.3.2 Active Mid-plane with Intel® SAS /SAS RAID Support...........................................18

6.4 Hot-Swap SAS/SATA Backplane........................................................................... 18

6.4.1 SAS/SATA Backplane Layout.................................... ...................................... ......18

6.4.2 SAS/SATA Backplane Functional Architecture......................................................18

7. Mini Control Panel.......................................... ....................................................................18

7.1 Mini Control Panel Buttons ....................................................................................18

7.2 Mini Control Panel LED Indicators.........................................................................18

7.2.1 Power / Sleep LED ................................................................................................18

7.2.2 System Status LED...................................................................... ..........................18

7.2.3 System Identification LED......................................................................................18

7.3 External Mini Control Panel Connectors................................................................18

7.4 Internal Mini Control Panel Interconnects..............................................................18

Intel® Server System SR1550AL Table of Contents

Revision – 1.3

Intel order number D31982-006

vii

8. Standard Control Panel .....................................................................................................18

8.1 Standard Control Panel Buttons............................................................................18

8.2 Standard Control Panel LED Indicators.................................................................18

8.2.1 Power / Sleep LED ................................................................................................18

8.2.2 System Status LED...................................................................... ..........................18

8.2.3 Drive Activity LED........................................................... .......................................18

8.2.4 System Identification LED......................................................................................18

8.3 External Standard Control Panel Connectors........................................................18

8.4 Internal Standard Control Panel Interconnect........................................................18

9. Intel® Local Control Panel..................................................................................................18

9.1 LED Functionality................................. ..................................................................18

9.1.1 Power / Sleep LED ................................................................................................18

9.1.2 System Status LED...................................................................... ..........................18

9.1.3 System Identification LED......................................................................................18

9.2 Intel® Local Control Panel Interconnects ...............................................................18

10. PCI Riser Cards and Assembly.........................................................................................18

10.1 Riser Card Options......................................................... ...................................... .18

11. Supported Intel® Server Boards ........................................................................................18

11.1 Intel® Server Boards S5000PAL and S5000XAL...................................................18

11.1.1 Processor Support.................................................................................................18

12. Environmental and Regulatory Specifications...............................................................18

12.1 System Level Environmental Limits.......................................................................18

12.2 Product Regulatory Compliance............................................................................18

12.2.1 Product Safety Compliance...................................................................................18

12.2.2 Product EMC Compliance .....................................................................................18

12.2.3 Product Regulatory Compliance Markings ............................................................18

12.3 Electromagnetic Compatibility Notices ..................................................................18

12.3.1 USA .......................................................................................................................18

12.3.2 FCC Verification Statement...................................................................................18

12.3.3 ICES-003 (Canada)...............................................................................................18

12.3.4 Europe (CE Declaration of Conformity) .................................................................18

12.3.5 Japan EMC Compatibility ......................................................................................18

12.3.6 BSMI (Taiwan).......................................................................................................18

12.3.7 Korean RRL Compliance.......................................................................................18

12.3.8 CNCA (CCC-China)...............................................................................................18

12.4 Replacing the Back up Battery ..............................................................................18

12.5 Serviceability and Availability.................................................................................18

12.6 Restriction of Hazardous Substances (RoHS) Compliance...................................18

Table of Contents Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

viii

12.7 Regulated Specified Components.........................................................................18

Appendix A: Integration and Usage Tips................................................................................18

Appendix B: POST Code Diagnostic LED Decoder...............................................................18

Appendix C: POST Error Beep Codes.....................................................................................18

Glossary.....................................................................................................................................18

Reference Documents................................................................... ..................................... ......18

Intel® Server System SR1550AL List of Figures

Revision – 1.3

Intel order number D31982-006

ix

List of Figures

Figure 1. Front View (Shown with Standard Control Panel Bezel) ...............................................1

Figure 2. Front View without Bezel (Shown with Standard Control Panel Option) .......................1

Figure 3. Back View (Shown with 1+1 Power Supply Configuration)............................................1

Figure 4. Major System Components ...........................................................................................2

Figure 5. Back Panel Feature Overview .......................................................................................3

Figure 6. Control Panel Modules ..................................................................................................4

Figure 7. Mini Control Panel Overview .........................................................................................5

Figure 8. Standard Control Panel Overview .................................................................................5

Figure 9. Intel® Local Contol Panel Overview...............................................................................6

Figure 10. Front Panel Feature Overview.....................................................................................6

Figure 11. Optional Front Bezel....................................................................................................9

Figure 12. Front Bezel Supporting Mini Control Panel..................................................................9

Figure 13. Front Bezel Supporting Standard Control Panel..........................................................9

Figure 14. Front Bezel Supporting Intel® Local Control Panel....................................................10

Figure 15. PS Module Enclosure - Dimensional Drawing...........................................................11

Figure 16. Fan Module................................................................................................................18

Figure 17. Fan Header Assignments on Mid-Plane....................................................................18

Figure 18. Power Supply Air Duct...............................................................................................18

Figure 19. CPU Air Duct .............................................................................................................18

Figure 20. 2.5” Drive Blank.........................................................................................................18

Figure 21. Passive Mid-Plane Board ..........................................................................................18

Figure 22. Active SAS/SAS RAID Mid-Plane Board...................................................................18

Figure 23. Bridge Board..............................................................................................................18

Figure 24. Hot-Swap SAS/SATA Backplane (Front Side View)............................................ ......18

Figure 25. Hot-Swap SAS/SATA Backplane (Back Side View)..................................................18

Figure 26. Slimline Optical Drive Assembly................................................................................18

Figure 27. Hard Drive Tray Assembly.........................................................................................18

Figure 28. Passive Mid-Plane Board ..........................................................................................18

Figure 29. Active Mid-plane with SAS / SAS RAID Support .......................................................18

Figure 30. Active Mid-plane Architecture Diagram .....................................................................18

Figure 31. Hot-Swap SAS/SATA Backplane (Front Side View)............................................ ......18

Figure 32. Hot-Swap SAS/SATA Backplane (Back Side View)..................................................18

Figure 33. SAS/SATA Backplane Functional Block Diagram .....................................................18

Figure 34. Mini Control Panel Assembly Module........................................................................18

Figure 35. Mini Control Panel LED’s...................................................................... .....................18

List of Figures Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

x

Figure 36. Mini Control Panel PCB.............................. ...............................................................18

Figure 37. Standard Control Panel Assembly Module................................................................18

Figure 38. Standard Control Panel Buttons................................................................................18

Figure 39. Standard Control Panel LED’s...................................................................................18

Figure 40. Standard Control Panel PCB..................................................................................... 18

Figure 41. Intel® Local Control Panel Assembly Module.............................................................18

Figure 42. Intel® Local Control Panel Overview..........................................................................18

Figure 43. PCI Riser Card Assembly – LP View.........................................................................18

Figure 44. 1U Low Profile PCI-X* Riser Card Mechanical Drawing............................................18

Figure 45. 1U Full Height PCI-X* Riser Card Mechanical Drawing.............................................18

Figure 46. 1U Full Height PCI Express* Riser Card Mechanical Drawing..................................18

Figure 47. Intel® Server Board S5000PAL..................................................................................18

Figure 48. Intel® Server Board S5000PAL Components.............................................................18

Figure 50. Diagnostic LED Placement Diagram .........................................................................18

Intel® Server System SR1550AL List of Tables

Revision – 1.3

Intel order number D31982-006

xi

List of Tables

Table 1. System Dimensions........................................................................................................2

Table 2. Power Harness Cable Definitions.................................................................................13

Table 3. P1 Main Power Connector............................................................................................13

Table 4. P2 Processor Power Connector ....................................................................................14

Table 5. P3 Power Signal Connector..........................................................................................14

Table 6. P4 Hard Drive Interface Board Power Connector.........................................................14

Table 7. P5 Mid-plane Power Connector...................................................................................15

Table 8. AC Power Cord Specification........................................................................................15

Table 9. Efficiency......................................................................................................................16

Table 10. AC Input Rating..........................................................................................................16

Table 11. Supported AC Line Dropout Times............................................................................16

Table 12. Power Supply Module Load Ratings...........................................................................17

Table 13. Voltage Regulation Limits..........................................................................................17

Table 14. Over Current Protection Limits / 240VA Protection.....................................................18

Table 15. Over Voltage Protection (OVP) Limits .......................................................................18

Table 16. LED Indicators ............................................................................................................18

Table 17. Fan Connector Pin Assingment.................................................................................18

Table 18. Fan Header Assignment............................................................................................18

Table 19. 120-pin Bridge Board Connector Pin-Out ...................................................................18

Table 20. Mid-Plane Fan Header Pin-Outs.................................................................................18

Table 21. Mid-Plane Power Connector Pin-Out..........................................................................18

Table 22. Mid-Plane to Backplane Card Edge Connector #1 Pin-Out........................................18

Table 23. Mid-Plane to Backplane Card Edge Connector #2 Pin-Out........................................18

Table 24. Active Mid-Plane SAS RAID Battery Backup Connector Pin-Out...............................18

Table 25. Passive Mid-Plane SATA/SAS Drive Control Connector Pin-Outs.............................18

Table 26. Passive MidPlane HBA I2C Connector Pinout............................................................18

Table 27. 2x4 SAS/SATA Backplane Power Connector Pin-out.................................................18

Table 28. 2x22 IDE Optical Drive Connector Pin-out..................................................................18

Table 29. Slimline Optical Drive Connector................................................................................18

Table 30. IDE Device Master/Slave Configuration Jumper.........................................................18

Table 31. I2C Connector.............................................................................................................18

Table 32. PCIe* x4 Slot Connector from Mid-Plane....................................................................18

Table 33. PCIe* x4 Slot Connector from Mid-Plane....................................................................18

Table 34. Intel® Local Control Panel (LCP) Connector...............................................................18

Table 35. Control Panel Signal Connector..................................................................................18

List of Tables Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

xii

Table 36. Control Panel USB Connector ....................................................................................18

Table 37. SAS/SATA Hard Drive Connector Pin-outs ................................................................18

Table 38. Hard Drive LED Function Definitions..........................................................................18

Table 39. Hard Drive Activity LED Functionality.........................................................................18

Table 40. Mini Contol Panel Button Functions............................................................................18

Table 41. Mini Control Panel LED Functions..............................................................................18

Table 42. SSI Power LED Operation..........................................................................................18

Table 43. Control Panel LED Operation .....................................................................................18

Table 44. External USB Connectors...........................................................................................18

Table 45. 20-Pin Mini Control Panel Interconnect ......................................................................18

Table 46. Standard Contol Button and Intrusion Switch Functions.............................................18

Table 47. Standard Control Panel LED Functions......................................................................18

Table 48. SSI Power LED Operation..........................................................................................18

Table 49. Control Panel LED Operation .....................................................................................18

Table 50. External USB Connectors...........................................................................................18

Table 51. Video Connector.........................................................................................................18

Table 52. 50-Pin Standard Control Panel Signal Connector.......................................................18

Table 53. 10-Pin Standard Control Panel USB Connector .........................................................18

Table 54. LCP Control Panel LED Functions..............................................................................18

Table 55. SSI Power LED Operation..........................................................................................18

Table 56. Control Panel LED Operation .....................................................................................18

Table 57. 50-Pin Intel® Local Control Panel Signal Connector...................................................18

Table 58. 10-Pin Control Panel USB Connector.........................................................................18

Table 59. Internal NMI/Temp Sensor Header.............................................................................18

Table 61. System Environmental Limits Summary.....................................................................18

Table 62: POST Progress Code LED Example ..........................................................................18

Table 63. Diagnostic LED POST Code Decoder........................................................................18

Table 64. POST Error Beep Codes ............................................................................................18

Table 65. BMC Beep Codes.......................................................................................................18

Intel® Server System SR1550AL List of Tables

Revision – 1.3

Intel order number D31982-006

xiii

< This page intentionally left blank. >

Intel® Server System SR1550AL Product Overview

Revision – 1.3

Intel order number D31982-006

1

1. Product Overview

The Intel® Server Chassis SR1550 is a 1U server chassis that is designed to support the Intel®
Server Board S5000PAL and Intel

®

Server Board S5000XAL. Together, the integrated products

make up the Intel

®

Server System SR1550AL. The server boards and chassis have feature sets
designed to support the high-density server market. This chapter provides a high-level overview
of the system features. Greater detail for each major system component or feature is provided in
the following chapters.

The Intel

®

Server System SR1550AL represents a major departure from previous generation
products. Most cables have been removed from the system and replaced by a series of board­to-board interconnects. Using board-to-board interconnects simplifies platform integration and
improves airflow for more reliable cooling.

A second significant change from the previous generation of products is the introduction of the
mid-plane system board. There are two options for this board: The first option is a cable-less
“active” mid-plane which includes an onboard SAS controller providing SAS / SAS RAID support.
The second option is a “passive” mid-plane which provides cabled point-to-point interconnects
to support either the onboard SATA ports of the server board, or to a SATA or SAS PCI add-in
card.

1.1 Chassis Views

Figure 1. Front View (Shown with Standard Control Panel Bezel)

Figure 2. Front View without Bezel (Shown with Standard Control Panel Option)

Figure 3. Back View (Shown with 1+1 Power Supply Configuration)

Product Overv iew Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

2

1.2 System Dimensions

Table 1. System Dimensions

System Height

43.2 mm 1.70 ”

System Width

430.0 mm 16.93 ”

System Width with Tool-less Slide Rail

470.0 mm 18.50 “

System Depth

654.4 mm 25.76 ”

System Depth with CMA (Without Bezel)

812.8 mm 32.00 ”

Bezel Depth Adder

38.1 mm 1.50 “

Max. Weight (Without Slide Rail or CMA)

16.8 kg 37.0 lbs

1.3 System Components

Figure 4. Major System Components

A Rack Handles L Riser Card Assembly
B SAS/SATA Backplane M System Memory
C Battery Pack (Optional) N Processor and Heat Sink
D Power Supply Air Duct O Processor Air Duct
E Power Distribution Board P System Fan Bank
F Power Supply Modules Q Mid-plane Board (Active version shown)

G Server Board R

Front Bezel (Optional; Standard Control
Panel shown)

H Bridge Board S

Standard Control Panel or Intel

®

Local

Control Panel

I

Intel

®

Remote Managment Module

(Optional)

T Mini Control Panel Bay

J

Intel

®

Remote Management Module NIC

(Optional)

U Slimline Optical Drive Bay

K Intel

®

I/O Expansion Module (Optional) V Hard Drive Bays

Intel® Server System SR1550AL Product Overview

Revision – 1.3

Intel order number D31982-006

3

The I/O connector locations on the back of the chassis are pre-cut, so use of a separate I/O
shield is not required. The EMI gasket installed to the chassis must be used to maintain
Electromagnetic Interference (EMI) compliance levels.

Figure 5. Back Panel Feature Overview

A PS2 Mouse Connector L Post Code Diagnostics LED’s
B Low Profile PCI EXPRESS Add-in Card Slot M USB 5
C Full Height PCI Add-in Card Slot N USB 6
D Supply Module #1 O Video
E Supply Module #1 Status LED P System Identification LED
F Supply Module #2 (Optional) Q System Status LED
G Supply Module #2 Status LED R NIC 2
H Supply Module #2 AC Recepticle S NIC 1

I Supply Module #1 AC Recepticle T RJ45 Serial B connector

J Intel

®

Remote Management Module NIC (Optional) U PS2 Keyboard Connector

K I/O Module (Optional)

1.4 System Boards/Components

The complete system includes the use of several system boards and parts which are used as
internal interconnects and provide feature accessibility. The following provides a brief
description for each.

• Brid ge Board – PCB used to route signals from the server board to the mid-plane and
control panel boards.

• Mid-plane – A PCB used to determine the desired hard drive interface for the system.
Two mid-plane options are available for this system:

o Active SAS/SAS RAID – cable-less solution with onboard SAS controller
o Passive Point-to-Point – cabled to SATA ports on the server board or from add-in

SATA or SAS adapter card.

• Backplane – Hot swap backplane capable of supporting both SATA and SAS hard
drives.

• Riser Cards – PCI riser cards used to provide up to two add-in card slots to the system.
Available riser card options for this system include:

Product Overv iew Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

4

o Low Profile, one slot PCI-Express
o Full Height, one slot PCI-X
o Full Height, one slot PCI-Express

• Control Panel – A PCB providing system status and control functionality features.
Three control panel options are available for this system

o Mini Control Panel
o Standard Control Panel
o Intel

®

Local Control Panel with LCD support.

• RAID Activation Keys – The system provides different RAID options depending on the
mid-plane option selected. Two RAID Activation Keys are available for this system

o Hardware RAID Activation Key – Used on the Active SAS/SAS RAID Mid-plane

to enable hardware RAID support.

o Software SATA RAID 5 Activation Key – This RAID key plugs into a connector on

the server board. It is used to enable the software SATA RAID 5 functionality of
the ESB2 SATA ports of the server board when cabled to the passive mid-plane.

1.5 Control Panel Options

The Intel® Server System SR1550AL can support three types of control panels: mini control
panel, standard control panel, and an Intel

®

Local Control Panel with LCD support. Each control
panel is pre-assembled and modular in design. The entire control panel slides into a predefined
slot in the front of the chassis.

Figure 6. Control Panel Modules

Intel® Server System SR1550AL Product Overview

Revision – 1.3

Intel order number D31982-006

5

The Mini Control Panel supports three push buttons and three status LED’s, along with USB
port to centralize system control, monitoring, and accessibility to within a very compact design.
The following diagram overviews the layout and functions of the mini control panel.

Figure 7. Mini Control Panel Overview

A System Identification LED E Recessed NMI Button (Tool Required)
B System Status LED F System Identification Button
C Power / Sleep LED G USB 2.0 Connector
D Power / Sleep Button

The Standard Control Panel supports several push buttons and status LED’s, along with USB
and video ports to centralize system control, monitoring, and accessibility to within a common
compact design. The following diagram overviews the layout and functions of the standard
control panel.

Figure 8. Standard Control Panel Overview

A Power / Sleep Button G System Identification LED
B NIC #2 Activity LED H System Identification Button
C NIC #1 Activity LED I System Reset Button
D Power / Sleep LED J USB 2.0 Connector
E System Status LED K Recessed NMI Button (Tool Required)
F Hard Drive Activity LED L Video Connector

Product Overv iew Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

6

The Intel® Local Control Panel utilizes a combination of control buttons, LED’s, and LCD display
to provide system accessibility, monitoring, and control functions. The following diagram
provides an overview of this control panel.

Figure 9. Intel® Local Contol Panel Overview

A LCD Display I System Status LED
B LCD Menu Scroll Up Button J NIC 2 Activity LED
C LCD Menu Scroll Down Button K NIC 1 Activity LED
D LCD Menu Backspace Button L Hard Drive Activity LED
E LCD Menu Enter Button M System Reset Button
F ID LED N USB 2.0 Port
G Power LED O NMI Button (Tool Required)
H System Power Button P USB 2.0 Port

1.6 Hard Drive and Peripheral Bays

The system is designed to support 2.5” hot-swap SAS or SATA hard disk drives. When
configured with the Mini Control Panel option, the chassis can support up to eight 2.5” drives.
With the Standard Control Panel or Intel

®

Local Control Panel, up to six drives is supported.

The slim-line peripheral bay is capable of supporting one of the following devices: CDROM,
DVD, DVD-CDR.

Figure 10. Front Panel Feature Overview

Intel® Server System SR1550AL Product Overview

Revision – 1.3

Intel order number D31982-006

7

A Slimline Optical Drive Bay
B Mini Control Panel Bay (Filler Panel Shown)
C Standard Control Panel

D

2.5” Hard Drive Bays (Up to Eight Possible with Mini Control
Panel)

1.7 Power Sub-system

The system can support up to two 650 Watt power supply modules providing support for either a
non-redundant 1+0 or redundant 1+1 power configuration. In a 1+1 redundant configuration,
each power supply module is hot-swappable should one fail.

The power sub-system has several integrated management features including:

• Status LED on each power module

• Over temperature protection circuitry

• Over voltage protection circuitry

• Over current and 240VA protection circuitry

• Power dropout and brownout recovery

With the addition of Server Management Software, the power subsystem is capable of
supporting several system management features including:

• Remote Power On/Off

• Status Alerting

• Module and PDB FRU Information Reporting

• PSMI Capabilities:

Thermal management

• Relative temperature sensor for monitoring hot spot in power supply

• Fan speed sensor

• System control of power supply fan

• Power supply fan control override indicator

Power monitoring

• Output currents (12V)

• AC Input current

• AC input voltage

Diagnostics

• Shutdown events; general failure, over current, over temperature, and loss of
AC input

• Warning events; low input voltage, high current, high temperature, slowing
fan

Status

• Fan control override mode

• Signals; PWOK, PSON

• Input voltage range indicator

• SMBAlert#

Product Overv iew Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

8

Control

• Fan control mode; system or power supply

• Failure and Warning LED indication

Each power supply module operates within the following AC voltage ranges and ratings:

PARAMETER MIN RATED MAX

Start-up

Vac

Power Off

Vac

Max Input AC

Current

Max Rated Input AC

Current

Line Voltage

(110)

90V

rms

100-127

V

rms

140V

rms

85Vac
±4Vac

75Vac
±5Vac

8.5 A

rms

1,3

7.6 A

rms

4

Line Voltage

(220)

180V

rms

200-240

V

rms

264V

rms

- -

4.2 A

rms

2,3

3.8 A

rms

4

Frequency 47 Hz 50/60Hz 63 Hz

Notes:

1 Maximum input current at low input voltage range shall be measured at 90Vac, at max load.
2 Maximum input current at high input voltage range shall be measured at 180VAC, at max load.
3 This is not to be used for determining agency input current markings.
4 Maximum rated input current is measured at 100VAC and 200VAC.

1.8 System Cooling

The cooling subsystem for this system consists of air baffles, a CPU air duct, and a tool-less fan
module which houses five 56 mm dual rotor system fans. In addition, each power supply
module includes a 56 mm dual rotor fan module which pulls air from inside the chassis and
blows it out the back. Coupled with the onboard server management functionality of the server
board, the cooling sub-system provides sufficient airflow to maintain internal system thermal
requirements when the external ambient temperature remains within specified limits.

Note: The cooling sub-system for this system provides no fan redundancy. Should any of the
system fans fail, the system should be shut down as soon as possible to have the failed fan
replaced.

1.9 System Security

The system provides support for a lockable front bezel which prevents unauthorized access to
the system control buttons and hard drives. In addition, a chassis intrusion switch is provided
allowing server management software to monitor removal of the top cover from the chassis.

1.10 Rack and Cabinet Mounting Options

The system was designed to support 19” wide by up to 30” deep server cabinets. The chassis
supports three rack mount options: A fixed mount relay rack / cabinet mount, a tool-less sliding
rail kit, or a basic three-quarter extension sliding rail kit. The fixed mount relay rack / cabinet
mount kit can be configured to support both 2-post racks and 4-post cabinets. The tool-less
sliding rail kit or basic rail kit is used to mount the chassis into a standard (19” by up to 3 0” deep )
EIA-310D compatible server cabinet. An optional Cable Management Arm can be used with the
tool-less sliding rail kit only.

1.11 Front Bezel Features

The optional front bezel options are made of molded plastic and use a snap-on design with a
key lock. When installed, the design allows for maximum airflow.

Intel® Server System SR1550AL Product Overview

Revision – 1.3

Intel order number D31982-006

9

Figure 11. Optional Front Bezel

Separate front bezels are available to support systems that use a Mini Control Panel, Standard
Control Panel or Intel

®

Local Control Panel with LCD support.

When either the Mini Control Panel or the Standard Control Panel is used, light pipes on the
backside of the front bezel allow the system status LED’s to be monitored with the front bezel
installed. The front bezel lock is provided to prevent unauthorized access to hard drives,
peripheral devices and the control panel buttons and I/O ports.

Figure 12. Front Bezel Supporting Mini Control Panel

Figure 13. Front Bezel Supporting Standard Control Panel

Product Overv iew Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

10

When the Intel

®

Local Control Panel is used, the control panel module can be adjusted to

extend further out from the chassis face to allow the LCD panel to protrude from the front bezel.

Figure 14. Front Bezel Supporting Intel® Local Control Panel

Intel® Server System SR1550AL Power Sub-system

Revision – 1.3

Intel order number D31982-006

11

2. Power Sub-system

The power sub-system of the system consists of an integrated Power Distribution Module
(PDM), a Power Module Enclosure, and support for up to two 650 Watt power supply modules.
The power sub-system can be configured to support a single module in a 1+0 non-redundant
configuration, or dual modules in a 1+1 redundant power configuration. In a 1+1 configuration, a
single failed power module can be hot-swapped with the system running. Either configuration
will support up to a maximum of 650 Watts of power.

This chapter provides technical details to the operation of the power supply module and power
sub-system. For additional information refer to the Intel

®

Server Chassis SR1550 AC Power

Supply Specification and the Intel

®

Server Chassis SR1550 Power Distribution Module

Specification.

2.1 Mechanical Overview

Notes:

1. All dimensions are in mm.

2. AC inlet can protrude beyond front panel of power supply module

3. Fans powered from +12V when power supplies are ON.

4. Fans shall be powered from 5VSB when in standby mode.

Figure 15. PS Module Enclosure - Dimensional Drawing

320 mm

+/-0.5

39.0

+0.5/-0.5

54.5

+/- 0.5

Bi-Color LED
(PWR/Fail)

Airflow direction

4.0

AC

Fan

Fan

Beveled to allow smooth insertion into the system

Bevel

39 +/-0.5mm

40.25
+/-0.5mm

Power Sub-system Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

12

2.1.1 DC Output Connection (card edge)

2.2 Single Power Supply Module Population

In single power module configurations, server management firmware requires that power supply
module #1 be populated. The power module #1 slot is located closest to the baseboard away
from the side edge of the chassis. See the diagram below. The non-operating slot must have
the power supply blank installed.

Configuring a single power supply module in the #2 module slot will cause the server
management firmware and BIOS to generate a system error during POST and to the System
Event Log and will cause the System Status LED on the control panel to blink green, denoting a
degraded system configuration.

2.3 Handle and Retention Mechanism

Each power supply module includes a handle allowing for module insertion to or removal from
the module enclosure. Each module has a simple retention mechanism to hold the power
module in place once it is inserted. This mechanism will withstand the specified platform
mechanical shock and vibration requirements. The tab on the retention mechanism is colored

Green

to indicate it is a hot-swap touch point. The latch mechanism is designed in such a way,

SMB ALERT

Ground

Ground

+12V

+12V

Bottom

To

p

5VSdB

y

5VSdB

y

5VSdB

y

5VSdB

y

+12VRS

A1

A0

SD

A

SCL

PS Kill

PS ON

PW OK

+12VRS

12LS

Vsense-

PDB Ale

Presen

PDB Fa

Power supply #1

Chassis Side Edge

Air

Flow

Power supply #2

Intel® Server System SR1550AL Power Sub-system

Revision – 1.3

Intel order number D31982-006

13

so that it prevents inserting the module with the power cord plugged in. This will aid the hot­swapping procedure.

2.4 Hot-swap Support

Hot-swapping a power supply module is the process of extracting and re-inserting a power
supply module from an operating power system. During this process the output voltages shall
remain within specified limits. Up to two power supply modules may be on a single AC line.
The power supply module can be hot-swapped by the following method:

Extraction: on removal, the power cord is unplugged first, and then the power module is
removed. This could occur in standby mode or power-on mode.

Insertion: The module is inserted first and then the power cord is plugged in. The system and
the supply will power on into standby mode or power-on mode.

2.5 Output Cable Harness

The power distribution board connects to the system via a wire harness. The harness size,
connectors, and pin outs are shown below. Listed or recognized component appliance wiring
material (AVLV2), CN, Rated 105°C Min, 300Vdc Min shall be used for all output wiring.

Table 2. Power Harness Cable Definitions

Connector #

No of

pins

Description

P1

2x12 Main Power Connector

P2

2x4 Processor Power Connector

P3

1x5 Baseboard Signal Connector

P4

2x4 Backplane Power Connector

P5

2x5 Mid-plane Power Connector

2.5.1 P1 – Baseboard Power Connector

Connector housing: 24- Pin Molex* Mini-Fit Jr. 39-01-2245 or equivalent
Contact: Molex Mini-Fit, HCS, Female, Crimp 44476 or equivalent

Table 3. P1 Main Power Connector

PIN SIGNALS 18 AWG COLOR PIN SIGNAL

18 AWG

COLORS

1 +3.3 VDC Orange 13 +3.3 VDC Orange
2 +3.3 VDC Orange 14

-12 VDC

Blue
3 COM (GND) Black 15 COM Black
4* 5 VDC Red 16 PS_ON# Green
5V RS Red (24 AWG) 17 COM Black
5 COM Black 18 COM Black

6 +5 VDC Red 19 COM Black
7 COM Black 20 Reserved (-5V in ATX) N.C.
8 PWR OK Gray 21 +5 VDC Red
9 5Vsb Purple 22 +5 VDC Red
10 +12 V3 Yellow/Blue 23 +5 VDC Red
11 +12 V3 Yellow/Blue 24 COM Black
12 +3.3 VDC Orange

Power Sub-system Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

14

2.5.2 P2 – Processor Power Connector

Connector housing: 8- Pin Molex 39-01-2085 or equivalent
Contact: Molex

44476-1111 or equivalent

Table 4. P2 Processor Power Connector

PIN SIGNAL 18 AWG COLORS PIN SIGNAL 18 AWG COLORS

1 COM Black 5 + 12 V1 Yellow
2 COM Black 6 +12 V1

Yellow

3 COM Black 7 +12 V2

Yellow/Black

4 COM Black 8 +12 V2

Yellow/Black

2.5.3 P3 – Power Signal Connector

Connector housing: 5-pin Molex 50-57-9705 or equivalent
Contacts: Molex 16-02-0087 or equivalent

Table 5. P3 Power Signal Connector

PIN SIGNAL 24 AWG COLORS

1 I2C Clock (SCL) White/Green
2 I2C Data (SDL) White/Yellow
3 SMBAlert# White
4 ReturnS Black
5 3.3RS White/Brown

2.5.4 P4 – Backplane Power Connector

Connector housing: 8 Pin Molex Mini-Fit Jr. PN# 39-01-2245 or equivalent
Contact: Molex Mini-Fit, HCS, Female, Crimp 44476 or equivalent

Table 6. P4 Hard Drive Interface Board Power Connector

PIN SIGNAL 18 AWG COLORS PIN SIGNAL 18 AWG COLORS

1 COM Black 5 +12 V4 Yellow/Green
2 COM Black 6 +12 V4 Yellow/Green
3 +5V Red 7 +5Vsb Purple
4 +5V Red 8 +3.3V Orange

Intel® Server System SR1550AL Power Sub-system

Revision – 1.3

Intel order number D31982-006

15

2.5.5 P5 – Mid-Plane Power Connector

Connector housing: 10-Pin Molex Mini-Fit Jr. 43025-1000 or equivalent
Contact: Molex Mini-Fit, HCS, Female, Crimp 43030-0007 or equivalent

Table 7. P5 Mid-plane Power Connector

PIN SIGNAL 20 AWG Colors PIN SIGNAL 20 AWG Colors

1 COM Black 6 +12 V4 Yellow/Green
2 COM Black 7 +12 V4 Yellow/Green
3 +5V Red 8 +12 V4 Yellow/Green
4 +3.3V Orange 9 +12 V4 Yellow/Green
5 COM Black 10 +5Vsb Purple

2.6 AC Input Requirements

The power supply module incorporates universal power input with active power factor correction,
which reduces line harmonics in accordance with the EN61000-3-2 and JEIDA MITI standards.

2.6.1 AC Inlet Connector

The AC input connector shall be an IEC 320 C-14 power inlet. This inlet is rated for 15A /
250VAC.

2.6.2 AC Power Cord Specification Requirements

The AC power cord used must meet the following minimum specification requirements:

Table 8. AC Power Cord Specification

Cable Type SVT

Wire Size 18 AWG

Temperature Rating 60º C

Amperage Rating 10A

Voltage Rating 125V

Power Sub-system Intel® Server System SR1550AL

Revision – 1.3

Intel order number D31982-006

16

2.6.3 Efficiency

The following table provides the recommended efficiency level for the power supply module.
Efficiency shall be tested over an AC input voltage range of 90VAC to 264VAC.

Table 9. Efficiency

Power Supply Version 20% of maximum 50% of maximum 100% of maximum

650W ~80-85% ~90% ~90%

2.6.4 AC Input Voltage Specification

The power supply must operate within all specified limits over the following input voltage range,
shown in the following table. Harmonic distortion of up to 10% of rated AC Input Voltage must
not cause the power supply to go out of specified limits. The power supply shall power off on or
after/below 75Vac ±5Vac range. The power supply shall start up on or before/above 85VAC
±4Vac. Application of an input voltage below 85VAC shall not cause damage to the power
supply, including a fuse blow.

Table 10. AC Input Rating

PARAMETER MIN RATED MAX

Start-up

Vac

Power Off

Vac

Max Input AC

Current

Max Rated Input AC

Current

Line Voltage

(110)

90V

rms

100-127

V

rms

140V

rms

85Vac
±4Vac

75Vac
±5Vac

8.5 A

rms

1,3

7.6 A

rms

4

Line Voltage

(220)

180V

rms

200-240

V

rms

264V

rms

- -

4.2 A

rms

2,3

3.8 A

rms

4

Frequency 47 Hz 50/60Hz 63 Hz

Notes:

1. Maximum input current at low input voltage range shall be measured at 90Vac, at max load.

2. Maximum input current at high input voltage range shall be measured at 180VAC, at max load.

3. This is not to be used for determining agency input current markings.

4. Maximum rated input current is measured at 100VAC and 200VAC.

2.6.5 AC Line Dropout / Holdup

An AC interrupt is defined as a momentary drop of AC input voltage to 0VAC at any phase of
the AC waveform. During an AC interrupt event, the system shall not reset or experience any
loss of data. If the AC interrupt event lasts longer than stated in the below table, the system may
shutdown.

Table 11. Supported AC Line Dropout Times

Input voltage Power supply configuration AC interrupt duration

120VAC Single power supply 15msec
120VAC Two power supplies 20msec
230VAC Single power supply 17msec
230VAC Two power supplies 20msec

Note: In order to prevent data loss due to power interruptions of any duration, it is
recommended that a Uninterruptable Power Source (UPS) be used anytime unstable line power
may exist.

Intel® Server System SR1550AL Power Sub-system

Revision – 1.3

Intel order number D31982-006

17

2.6.6 AC Inrush

The peak AC inrush current shall be less than 40A peak for one-quarter of the AC cycle. The
power supply must meet the AC inrush current requirements for any rated AC voltage, during
turn-on at any phase of AC voltage, during a single cycle AC dropout condition as well as upon
recovery after AC dropout of any duration, and over the specified temperature range T

op

,

(includes hot and cold inrush). It is acceptable that AC line inrush current may reach up to 60A

peak for up to 1msec.

2.6.7 AC Line 5VSB Holdup

The 5VSB output voltage should stay in regulation under its full load (static or dynamic) during
an AC dropout of 70ms min (=5VSB holdup time) whether the power supply is in ON or OFF
state (PSON asserted or de-asserted).

2.6.8 AC Line Leakage Current

The maximum leakage current to ground for each power supply shall be not more then 3.5mA
when tested at 240VAC.

2.6.9 Power Factor Correction

The power supply shall incorporate a Power Factor Correction circuit. The power supply shall be
tested as described in EN 61000-3-2: Electromagnetic Compatibility (EMC) Part 3: Limits-
Section 2: Limits for harmonic current emissions, and shall meet the harmonic current emissions
limits specified for ITE equipment. The power supply shall be tested as described in JEIDA MITI
Guideline for Suppression of High Harmonics in Appliances and General-Use Equipment and
shall meet the harmonic current emissions limits specified for ITE equipment.

2.7 DC Output Specification

2.7.1 Output Power / Currents

These are the power requirements for the power supply module.

Table 12. Power Supply Module Load Ratings

650W

Voltage Min Max Peak

+12 V 0 A 54 A 61 A4
+5 VSB

1,2

0.1 A 3.0 A 3.5 A

Vbias3 0 A See note ---

1. The two 40mm fans shall be powered from 5VSB when in standby mode.

2. +5VSB provides power to the two 40mm fans cooling the power supplies in standby mode. 1A of 5VSB is reserved for
power fan in standby mode.

3. Vbias max load based on PDB circuits. This output is optional depending if the PDB requires a higher voltage to power its
240VA circuits.

4. Peak current time duration doesn’t exceed 12 sec

2.7.2 Voltage Regulation

The power supply output voltages must stay within the following voltage limits when operating at
steady state and dynamic loading conditions. These limits include the peak-peak ripple/noise.
All outputs are measured with reference to the return remote sense signal (ReturnS). The +12V
and +5Vsb voltages are measured at the PDB output harness connector.