Intel SR2400 Technical Product Specification
Intel® Server Chassis SR2400
Technical Product Specification
Intel order number C78845-001
Enterprise Platforms and Services Marketing
Revision 1.0
September 2004
Revision History Intel® Server Chassis SR2400
Revision History
Date Revision
Number
Jan. 2004 0.52 Updated to reflect the Alpha hardware. First external release
July 2004 0.9 Added iLCP, updated diagrams, updated backplane info, updated riser card info,
increased over all detail.
September 2004 1.0 Final updates, and review. First non-NDA Release – Added content supporting
SE7320VP2, updated cooling section, updated regulatory section,
Modifications
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Intel® Server Chassis SR2400 Disclaimers
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.
This document contains information on products in the design phase of development. Do not
finalize a design with this information. Revised information will be published when the product
is available. Verify with your local sales office that you have the latest datasheet before
finalizing a design.
The Intel® Server Chassis SR2400 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 registered trademarks of Intel Corporation.
*Other brands and names may be claimed as the property of others.
Copyright © Intel Corporation 2004.
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Table of Contents Intel® Server Chassis SR2400
Table of Contents
1. Product Overview .................................................................................................................1
1.1 Chassis Views .........................................................................................................1
1.2 Chassis Dimensions ................................................................................................ 2
1.3 System Components ............................................................................................... 2
1.4 Hard Drive and Peripheral Bays .............................................................................. 4
1.5 Control Panel Options.............................................................................................. 5
1.6 Power Sub-system................................................................................................... 6
1.7 System Cooling........................................................................................................ 7
1.8 Chassis Security ...................................................................................................... 7
1.9 Rack and Cabinet Mounting Options ....................................................................... 7
1.10 Front Bezel Features ............................................................................................... 7
2. Power Sub-system ...............................................................................................................9
2.1 Mechanical Overview............................................................................................... 9
2.2 Power Module Population........................................................................................ 9
2.3 Handle and Retention Mechanism......................................................................... 10
2.4 Hot Swap Support.................................................................................................. 10
2.5 Airflow .................................................................................................................... 10
2.6 Output Cable Harness ........................................................................................... 10
2.6.1 P1 – Baseboard Power Connector ........................................................................ 11
2.6.2 P2 – Processor Power Connector .........................................................................11
2.6.3 P3 – Power Signal Connector................................................................................ 12
2.6.4 P4 – Hard Drive / Backplane Power Connector..................................................... 12
2.6.5 P5 – Peripheral Power Connector ......................................................................... 12
2.7 AC Input Requirements .........................................................................................12
2.7.1 AC Inlet Connector ................................................................................................13
2.7.2 Efficiency ...............................................................................................................13
2.7.3 AC Input Voltage Specification .............................................................................. 13
2.7.4 AC Line Dropout / Holdup...................................................................................... 13
2.7.5 AC Line Fuse ......................................................................................................... 14
2.7.6 AC Inrush............................................................................................................... 14
2.7.7 AC Line Surge .......................................................................................................14
2.7.8 AC Line Transient Specification............................................................................. 14
2.7.9 AC Line Fast Transient (EFT) Specification ..........................................................15
2.7.10 AC Line Leakage Current ...................................................................................... 15
2.8 DC Output Specification ........................................................................................15
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2.8.1 Power Supply Mating Connector ........................................................................... 15
2.8.2 Grounding .............................................................................................................. 17
2.8.3 Standby Output / Standby Mode............................................................................ 17
2.8.4 Remote Sense ....................................................................................................... 17
2.8.5 Power Module Output Power / Currents ................................................................ 17
2.8.6 +12V Outputs Load Requirements ........................................................................18
2.8.7 DC/DC Converters Loading ................................................................................... 18
2.8.8 DC/DC Converters Voltage Regulation ................................................................. 18
2.8.9 DC/DC Converters Dynamic Loading .................................................................... 19
2.8.10 DC/DC Converter Capacitive Loading ................................................................... 19
2.8.11 DC/DC Converters Closed Loop stability............................................................... 19
2.8.12 Common Mode Noise ............................................................................................ 19
2.8.13 DC/DC Converters Ripple / Noise ......................................................................... 19
2.8.14 Timing Requirements............................................................................................. 20
2.8.15 Residual Voltage Immunity in Standby Mode ........................................................ 21
2.9 Protection Circuits.................................................................................................. 21
2.9.1 Over-Current Protection (OCP)............................................................................ 21
2.9.2 Over Voltage Protection (OVP)............................................................................. 22
2.9.3 Over Temperature Protection (OTP)..................................................................... 23
2.10 SMBus Monitoring Interface ..................................................................................23
2.10.1 Hot Plug I2C Requirements ................................................................................... 24
2.10.2 Power Supply Failure Communication................................................................... 24
2.10.3 LED Control ........................................................................................................... 24
3. Cooling Subsystem ............................................................................................................ 25
3.1 4+4 System Fan Module........................................................................................ 25
3.2 Fan Redundancy ...................................................................................................27
3.3 Air Flow Support .................................................................................................... 28
3.3.1 Power Supply Zone ...............................................................................................28
3.3.2 Full Height Riser Zone ........................................................................................... 28
3.3.3 CPU / Memory / Low Profile PCI Zone ..................................................................28
3.4 Drive Bay Population ............................................................................................. 29
4. Peripheral and Hard Drive Support................................................................................... 29
4.1 Slimline Drive Bay.................................................................................................. 29
4.1.1 Floppy Drive Support ............................................................................................. 29
4.1.2 IDE Optical Drive Support...................................................................................... 31
4.2 Hard Disk Drive Bays............................................................................................. 33
4.2.1 Hot Swap Drive Trays............................................................................................ 33
4.2.2 Fixed Mount Drive Trays........................................................................................ 34
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4.3 Hot-Swap SCSI Backplane.................................................................................... 35
4.3.1 Hot-Swap SCSI Backplane Placement and Board Layout..................................... 35
4.3.2 SCSI Backplane Functional Architecture............................................................... 36
4.3.3 SCSI Backplane Connector Definitions ................................................................. 38
4.3.4 Optional 6Th SCSI Drive ......................................................................................... 44
4.4 Hot-Swap SATA Backplane................................................................................... 45
4.4.1 SATA Backplane Layout........................................................................................ 45
4.4.2 SATA Backplane Functional Architecture.............................................................. 46
4.4.3 LEDs ...................................................................................................................... 48
4.4.4 SATA Backplane Connectors ................................................................................ 49
4.4.5 Optional 6th SATA Drive Board Functional Architecture ........................................52
4.5 Optional Tape Drive or 6th Hard Drive Bay ............................................................54
5. Standard Control Panel ..................................................................................................... 55
5.1 Control Panel Buttons........................................................................................... 55
5.2 Control Panel LED Indicators ................................................................................56
5.2.1 Power / Sleep LED ................................................................................................57
5.2.2 System Status LED................................................................................................ 57
5.2.3 Drive Activity LED .................................................................................................. 58
5.2.4 System Identification LED...................................................................................... 58
5.3 Control Panel Connectors...................................................................................... 58
5.4 Internal Control Panel Assembly Headers............................................................. 59
6. Intel® Local Control Panel................................................................................................. 61
6.1 LED Functionality................................................................................................... 62
6.1.1 Power / Sleep LED ................................................................................................62
6.1.2 System Status LED................................................................................................ 62
6.1.3 Drive Activity LED .................................................................................................. 63
6.1.4 System Identification LED...................................................................................... 63
6.2 Internal Control Panel Headers .............................................................................63
7. PCI Riser Cards and Assembly ......................................................................................... 66
7.1 PCI Riser Card Mechanical Drawings ................................................................... 67
8. Supported Intel® Server Boards ....................................................................................... 69
8.1 Intel Server Board SE7520JR2.............................................................................. 69
8.1.1 Server Board SE7520JR2 SKU Availability ........................................................... 69
8.1.2 Server Board SE7520JR2 Feature Set.................................................................. 69
8.2 Intel Server Board SE7320VP2 ............................................................................. 73
8.2.1 Intel Server Board SE7320VP2 SKU Availability................................................... 73
8.2.2 Intel Server Board SE7320VP2 Feature Set ......................................................... 73
9. Regulatory, Environmentals, and Specifications ............................................................ 75
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9.1 Product Regulatory Compliance ............................................................................ 75
9.1.1 Product Safety Compliance ................................................................................... 75
9.1.2 Product EMC Compliance ..................................................................................... 75
9.1.3 Product Regulatory Compliance Markings ............................................................ 76
9.2 Electromagnetic Compatibility Notices ..................................................................76
9.2.1 USA .......................................................................................................................76
9.2.2 FCC Verification Statement ................................................................................... 77
9.2.3 ICES-003 (Canada) ............................................................................................... 77
9.2.4 Europe (CE Declaration of Conformity) ................................................................. 77
9.2.5 Japan EMC Compatibility ......................................................................................78
9.2.6 BSMI (Taiwan) ....................................................................................................... 78
9.2.7 Korean RRL Compliance ....................................................................................... 78
9.3 Replacing the Back up Battery ..............................................................................78
9.4 System Level Environmental Limits....................................................................... 79
9.5 Serviceability and Availability................................................................................. 79
9.6 Regulated Specified Components ......................................................................... 80
Appendix A: SR2400 Integration and Usage Tips.................................................................. 82
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List of Figures Intel® Server Chassis SR2400
List of Figures
Figure 1. Front View with optional 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 Chassis Components........................................................................................... 2
Figure 5. Back Panel Feature Overview ....................................................................................... 3
Figure 6. Front Panel Feature Overview....................................................................................... 4
Figure 7. Control Panel Modules ..................................................................................................5
Figure 8. Standard Control Panel Overview ................................................................................. 5
Figure 9. LCD Contol Panel Overview .......................................................................................... 6
Figure 10. Optional Front Bezel .................................................................................................... 7
Figure 11. Front Bezel Supporting Standard Control Panel.......................................................... 8
Figure 12. Front Bezel Supporting Intel Local Control Panel........................................................ 8
Figure 13. Mechanical Drawing for Dual (1+1 configuration) PS enclosure with PDB.................. 9
Figure 14. Power Module Edge Connector View ....................................................................... 16
Figure 15. Turn On/Off Timing (Power Supply/PDB combo Signals)......................................... 21
Figure 16. Fan Distribution Board Layout ................................................................................... 25
Figure 17. Fan Module Assembly ............................................................................................... 27
Figure 18. CPU Air Duct with Air Baffle ......................................................................................28
Figure 19. Drive Blank ................................................................................................................29
Figure 20. Optional Floppy Drive Configuration.......................................................................... 31
Figure 21. Hard Drive Tray Assembly......................................................................................... 34
Figure 22. Fixed Drive Tray w/Blank........................................................................................... 34
Figure 23. Hot-Swap SCSI Backplane Layout ............................................................................ 35
Figure 24. SCSI Backplane Block Diagram ................................................................................ 36
Figure 25. SCSI I2C Block Diagram ...........................................................................................38
Figure 26. 80-pn SCA2 Connector.............................................................................................. 40
Figure 27. 68-pin SCSI Cable Connector ..................................................................................41
Figure 28. SATA Backplane Layout............................................................................................ 46
Figure 29. SATA Backplane Functional Block Diagram.............................................................. 47
Figure 30. SATA Backplane I2C Block Diagram......................................................................... 48
Figure 31. Standard Control Panel Assembly Module ................................................................ 55
Figure 32. Control Panel Buttons................................................................................................55
Figure 34. Intel Local Control Panel Assembly Module .............................................................. 61
Figure 35. Intel Local Contol Panel Overview............................................................................. 61
Figure 36. Full Height PCI-Express Riser Card .......................................................................... 67
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Figure 37. Full Height Passive PCI-X Riser Card ....................................................................... 67
Figure 38. Full Height Active PCI-X Riser Card .......................................................................... 68
Figure 39. Low Profile Passive PCI-X Riser Card....................................................................... 68
Figure 40. Intel® Server Board SE7520JR2 Board Layout......................................................... 71
Figure 41. Intel® Server Board SE7320VP2 Board Layout ........................................................ 74
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List of Tables Intel® Server Chassis SR2400
List of Tables
Table 1. Chassis Dimensions .......................................................................................................2
Table 2. Power Harness Cable Definitions ................................................................................. 10
Table 3. P1 Baseboard Power Connector ..................................................................................11
Table 4. P2 Processor Power Connector.................................................................................... 11
Table 5. P3 Power Signal Connector.......................................................................................... 12
Table 6. P4 Hard Drive Interface Board Power Connector ......................................................... 12
Table 7. P5 HDD Power Connector ............................................................................................ 12
Table 8. AC Input Rating............................................................................................................. 13
Table 9. AC Line Sag Transient Performance ............................................................................ 14
Table 10. AC Line Surge Transient Performance ....................................................................... 15
Table 11. Power Supply Edge Connector Slot Pinout ................................................................15
Table 12. Load Ratings...............................................................................................................17
Table 13. +12V Outputs Load Ratings........................................................................................ 18
Table 14. DC/DC Converters Load Ratings................................................................................ 18
Table 15. Voltage Regulation Limits .......................................................................................... 18
Table 16. Transient Load Requirements..................................................................................... 19
Table 17. Capacitive Loading Conditions ...................................................................................19
Table 18. Ripple and Noise......................................................................................................... 20
Table 19. Turn On / Off Timing ................................................................................................... 20
Table 20. Over Current Protection Limits / 240VA Protection..................................................... 22
Table 21. Power Module Over Current Protection Limit ............................................................. 22
Table 22. Over Voltage Protection Limits ...................................................................................22
Table 23. Power Module Over Voltage Protection Limits ........................................................... 23
Table 24. LED Indicators ............................................................................................................24
Table 25. Individual Fan Pinout (J8B2, J6B1, J3B1, J1B1, J8A1, J6A1, J3A1, J1A1) ..............25
Table 26. 24-pin Fan Control Connector Pinout (J3K6, J8C1) ...................................................26
Table 27. 10-pin Fan Control Connector Pinout (J4l1, J7A1) ..................................................... 26
Table 28. 28-pin floppy connector Pinout (J4) ............................................................................ 29
Table 29. 4-pin floppy power connector Pinout (J3) ...................................................................30
Table 30. 34-pin floppy connector Pinout (J2) ............................................................................ 30
Table 31. 50-pin Drive connector Pinout (J6) .............................................................................31
Table 32. 44-pin internal Drive Interposer-to-Backplane Connector Pinout (J6) ........................32
Table 33. 4-pin Drive Power Connector Pinout (J5) ...................................................................32
Table 34. 40-pin IDE Optical Drive Interposer-to-Baseboard connector Pinout (J1) .................. 33
Table 35. SCSI Backplane Layout Description ........................................................................... 36
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Table 36. SCSI Backplane Power Connector Pinout (J9)........................................................... 39
Table 37. 7-pin SCSI power connector Pinout (J1)..................................................................... 39
Table 38. 10-pin Redundant Fan Connector Pinout (J5) ............................................................ 39
Table 39. 80-pin SCA-2 SCSI Interface Pinout (J9, J2, J10, J11, J12) ......................................40
Table 40. Ultra2 (LVD) SCSI Connector Pinout (J8)................................................................... 41
Table 41. 100-pin Floppy / CP / CD-ROM / Video Connector Pinout (J6) ..................................42
Table 42. 28-pin floppy connector Pinout (J15) .......................................................................... 43
Table 43. 44-pin internal CD-ROM connector Pinout (J3) .......................................................... 43
Table 44. 50-pin SCSI Backplane to Control Panel Connector Pinout (J5) ................................ 44
Table 45. 6th Drive 7-pin Power Connector Pinout..................................................................... 44
Table 46. SATA Backplane Layout Reference Descriptions....................................................... 46
Table 47. SATA LED Function Definitions .................................................................................. 48
Table 48. SATA Backplane Power Connector Pinout................................................................. 49
Table 49. Option Board Power Connector Pin-out...................................................................... 49
Table 50. 4-pin SATA optional tape dirve power connector Pinout (J15) ................................... 49
Table 51. 10-pin Redundant Fan Connector Pinout (J5) ............................................................ 50
Table 52. 7-Pin SATA Connector Pinout (J2, J3, J4, J5, J6) ...................................................... 50
Table 53. 22-Pin SATA Connector Pinout (J7, J8, J9, J10, J11) ............................................... 50
Table 54. 100-pin Floppy/FP/IDE/Video Connector.................................................................... 51
Table 55. 50-pin Control Panel Connector.................................................................................. 52
Table 56. Contol Button and Intrusion Switch Functions ............................................................ 56
Table 57. Control Panel LED Functions...................................................................................... 56
Table 58. SSI Power LED Operation .......................................................................................... 57
Table 59. External USB Connectors (J1B1) ...............................................................................58
Table 60. Video Connector (J1A1).............................................................................................. 59
Table 61. 50-pin Control Panel Connector (J6B1) ...................................................................... 59
Table 62. Internal USB Header (J2B1) ....................................................................................... 60
Table 63. Control Panel LED Functions...................................................................................... 62
Table 64. SSI Power LED Operation .......................................................................................... 62
Table 65. 50-pin Control Panel Connector.................................................................................. 64
Table 66. Internal USB Header...................................................................................................64
Table 67. IPMI Header................................................................................................................65
Table 68. Internal NMI/Temp Sensor Header ............................................................................. 65
Table 69. Baseboard Layout Reference ..................................................................................... 72
Table 70. System Environmental Limits Summary .....................................................................79
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Intel® Server Chassis SR2400 Product Overview
1. Product Overview
The Intel® Server Chassis SR2400 is a 2U server chassis that is designed to support the Intel®
Server Board SE7520JR2 and Intel Server Board SE7320VP2. The baseboards and the chassis
have feature sets that are designed to support the high-density server market. This chapter
provides a high-level overview of the chassis features. Greater detail for each major chassis
component or feature is provided in the following chapters.
Note: Support for some chassis features described in this document is dependent on which
server board is used and whether or not an Intel Management Module is installed in the system.
1.1 Chassis Views
Figure 1. Front View with optional Bezel
Figure 2. Front View without Bezel (Shown with Standard Control Panel option)
Figure 3. Back View – (Shown with 1+1 Power Supply Configuration)
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1.2 Chassis Dimensions
Table 1. Chassis Dimensions
Height
Width
Depth
Max. Weight
1.3 System Components
87.5 mm 3.445”
430 mm 16.930”
672 mm 26.457”
27.22 kg 60 Lbs
A.
Power Supply Modules G Slim Line Drive Bay
B.
Power Distribution Board H Front Bezel (Optional)
C.
Riser Card Assembly I Chassis Handles
D.
Processor Air Duct J Control Panel
E.
Fan Module (Shown with redundant fan configuration option) K Hard Drive Bays
F.
Air Baffle
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Figure 4. Major Chassis Components
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Intel® Server Chassis SR2400 Product Overview
The I/O connector locations on the back of the chassis are pre-cut, so the use of an I/O shield is
not required. The supplied EMI gasket must be installed to maintain Electromagnetic
Interference (EMI) compliance levels.
A
C B
E D
F
J I H G
Figure 5. Back Panel Feature Overview
K
L
M
N
O
A Low Profile PCI Add-in Card Slots I Video Connector
B Full Height PCI Add-in Card Slots J USB 1 Connector
C Power Supply Modules (1+1 Configuration Shown) K USB 2 Connector
D PS2 Keyboard and Mouse Ports L Diagnostic Post Code LEDs
E RJ45 Serial B Port M Management NIC (IMM - Advanced
Edition required)
F NIC #1 Connector N External SCSI Channel B Connector
G NIC #2 Connector O Non-redundant Power Module Fans
H DB9 Serial A Port Cut-out
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1.4 Hard Drive and Peripheral Bays
The SR2400 is designed to support several different hard drive and peripheral configurations.
The system can be configured to support either hot swap SCSI or SATA drives, or can be
configured to support cabled SATA drives. Each drive configuration requires an orderable kit
which includes the necessary cables, drive trays and applicable backplane. The sixth bay,
labeled “B” in the diagram below, can optionally be configured to support a sixth hard drive or
3.5” Tape Drive.
The slim-line peripheral bay (A) is capable of supporting one of the following devices: CDROM,
DVD, DVD-CDR, floppy drive. If both an optical drive and floppy drive are required, an optional
kit can be purchased to convert the first 1” drive bay (D) to a floppy drive bay. The kit includes
the necessary cables and mounting tray.
D
A
E
Figure 6. Front Panel Feature Overview
B
C
A Slimline drive bay (Floppy or Optical)
B Optional 6th HDD Drive or Tape Drive Bay
C System Control Panel
D 1” Hard Drive Bay or optional Floppy Drive Bay
E 1” Hard Drive Bays x5
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1.5 Control Panel Options
The Server Chassis SR2400 can support either of two control panels: a Standard Control Panel
and an Intel® Local Control Panel with LCD support. The control panel assemblies are preassembled and modular in design. The entire module assembly slides into a predefined slot in
the front of the chassis.
Figure 7. Control Panel Modules
The standard control panel supports several push buttons and status LEDs, 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 control panel.
C D E
B
F
G
H
A
I
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
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Product Overview Intel® Server Chassis SR2400
The Intel® Local Control Panel utilizes a combination of control buttons, LEDs, and LCD display
to provide system accessibility, monitoring, and control functions. The following diagram
provides an overview of this control panel.
A
M
L
K
I
H G J
Figure 9. LCD Contol Panel Overview
A LCD Display G NIC 2 Activity LED
B LCD Menu Control Buttons H NIC 1 Activity LED
C ID LED I Hard Drive Activity LED
D Power LED J System Reset Button
E System Power Button K USB 2.0 Port
F System Status LED L NMI Buttom (Tool Required)
M USB 2.0 Port
E
C
D F
B
Note: The Intel Local Control Panel can only be used when either the Intel Management Module
Professional Edition or Advanced Edition is installed in the system.
1.6 Power Sub-system
The power subsystem of the SR2400 consists of an integrated power share board and module
enclosure which is capable of housing up to two 700 Watt power supply modules supporting
1+0 or redundant 1+1 power configurations. 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
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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
FRU Information Reporting
Each power supply module operates within the following voltage ranges and ratings:
• 100 - 127VAC∼ at 50/60 Hertz (Hz); 8.9A maximum
200 - 240VAC∼ at 50/60 Hz; 4.5A maximum
1.7 System Cooling
The SR2400 has support for up to eight system fans in a modular 4+4 configuration. The bank
of fans closest to the baseboard is the default configuration providing sufficient airflow for both
cabled drive and hot-swap drive system configurations when external ambient temperatures
remain within specified limits. With the addition of a SATA or SCSI backplane to supply power,
the optional second bank of fans can be used to give the system fan redundancy should a fan
fail. In addition to the eight system fans, each power supply module installed provides an
additional two non-redundant fans pulling air from inside the chassis out the back.
1.8 Chassis Security
The SR2400 provides support for a lockable front bezel and a chassis intrusion switch.
1.9 Rack and Cabinet Mounting Options
The Server Chassis SR2400 was designed to support 19” wide by up to 30” deep server
cabinets. The chassis supports either of two rack mount options: A fixed mount relay rack /
cabinet mount or a tool-less 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 is used
to mount the chassis into a standard (19” by up to 30” deep) EIA-310D compatible server
cabinet.
1.10 Front Bezel Features
The optional front bezel is made of molded plastic and uses a snap-on design. When installed,
its design allows for maximum airflow.
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Product Overview Intel® Server Chassis SR2400
Separate front bezels are available to support systems that use either a Standard Control Panel
or Intel Local Control Panel.
When the Standard Control Panel is used, light pipes on the backside of the front bezel allow
the system status LEDs to be monitored with the front bezel in the closed position. The front
bezel lock is provided to prevent unauthorized access to hard drives, peripheral devices and the
control panel.
Figure 11. Front Bezel Supporting Standard Control Panel
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 12. Front Bezel Supporting Intel Local Control Panel
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Intel® Server Chassis SR2400 Power Sub-system
2. Power Sub-system
The power sub-system of the SR2400 consists of an integrated Power Distribution Board (PDB)
and Power Module Enclosure assembly, with support for up to two 700 Watt power supply
modules. The power sub-system can be configured to support a single module in a 1+0 nonredundant 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 700 Watts of power.
This chapter provides technical details to the operation of the power supply module and power
sub-system.
2.1 Mechanical Overview
The drawing below displays the Power Distribution Board + Module Enclosure assembly
FLANGE DETAILS TDB
FLANGE DETAILS TDB
106.0 +/- 0.5
106.0 +/- 0.5
MODULE
MODULE
83.5 +/- 0.5
83.5 +/- 0.5
CAGE
CAGE
40.0 +/- 0.5
(100)
(100)
400 +/- 1.0
400 +/- 1.0
300 +/- 0.5
300 +/- 0.5
MAX TBD
MAX TBD
109.0 +/- 0.5
109.0 +/- 0.5
CAGE
CAGE
40.0 +/- 0.5
MODULE
MODULE
Figure 13. Mechanical Drawing for Dual (1+1 configuration) PS enclosure with PDB
2.2 Power Module Population
In single power module configurations, the power module can be inserted into either top or
bottom slot of the power module enclosure. Both locations will operate correctly in single
module configurations. System and Power Supply thermals are not affected, however the nonoperating slot must have the power supply blank installed.
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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,
so that it prevents inserting the module with the power cord plugged in. This will aid the hot
swapping procedure.
2.4 Hot Swap Support
Hot swapping a power supply module is the process of inserting and extracting a power supply
module from an operating power system. During this process the output voltages shall remain
within specified limits. Up to 2 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 Airflow
Each power supply module incorporates two non-redundant 40mm fans for self cooling and is
also used for partial system cooling. When installed in the system, the fans will provide
approximately 15.5 CFM airflow at max load/ max temp in a 1+0 configuration, through the
power supply and min 10CFM to the system. The air used to cool the power module is preheated from the system before being drawn through the power module.
2.6 Output Cable Harness
A cable harness from the power distribution board is used to provide the system with the various
power interconnects. The harness size, connectors, and pin outs are shown below. Listed or
recognized component appliance wiring material (AVLV2), CN,
Rated 85
Power Distribution Board
Power Distribution Board 270 P2 2x4 Processor Power Connector
Power Distribution Board 240 P3 1x5 Power Signal Connector
Power Distribution Board 100 P4 2x3 Hard Drive / Backplane Power Connector
Power Distribution Board 100 P5 1x4 Peripheral Power Connector
°C Min, 300Vdc Min shall be used for all output wiring.
Table 2. Power Harness Cable Definitions
From Length mm
140, turn
90°
To
connector #
P1 2x12 Baseboard Power Connector
No of
pins
Description
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2.6.1 P1 – Baseboard Power Connector
• Connector Housing: 24-pin Molex Mini-Fit Jr. 39-01-2240 or equivalent.
Contact: Molex 44476-1111 or equivalent
Table 3. P1 Baseboard Power Connector
PIN SIGNALS 18 AWG COLOR PIN SIGNAL
1 +3.3 VDC Orange 13 +3.3 VDC Orange
2* +3.3 VDC Orange 14
3* COM (GND) Black 16 PS_ON# Green
4* 5 VDC Red 18 COM Black
5 COM Black 20 Reserved (-5V in ATX) N.C.
6 +5 VDC Red 21 +5 VDC Red
7 COM Black 22 +5 VDC Red
8 PWR OK Gray 23 +5 VDC Red
9 5VSB Purple 24 COM Black
10 +12 V3 Yellow / Blue Stripe
11 +12 V3 Yellow / Blue Stripe
12 +3.3 VDC Orange
3.3V RS Orange/white (24 AWG)
COM Black (24 AWG)
5V RS Red (24 AWG)
15 COM Black
17 COM Black
19 COM Black
-12 VDC
* Remote Sense wire double crimped
2.6.2 P2 – Processor Power Connector
• Connector Housing: 8-pin Molex 39-01-2080 or equivalent
Contact: Molex 44476-1111 or equivalent
18 AWG
COLORS
Blue
PIN SIGNAL 18 AWG COLORS PIN SIGNAL 18 AWG COLORS
1 COM Black 5 +12 V1 Yellow / Black Stripe
2 COM Black 6 +12 V1 Yellow / Black Stripe
3 COM Black 7 +12 V2 Yellow / White Stripe
4 COM Black 8 +12 V2 Yellow / White Stripe
Note: the 12V remote sense should be connected just before the 240VA current sense resistors on the
PDB.
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Table 4. P2 Processor Power Connector
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Intel order number C78845-001
Power Sub-system Intel® Server Chassis SR2400
2.6.3 P3 – Power Signal Connector
Connector housing: 5-pin Molex 50-57-9405 or equivalent
Contacts: Molex 16-02-0088 or equivalent
Table 5. P3 Power Signal Connector
PIN SIGNAL 24 AWG COLORS
1 SMBus Clock (SCL) White /Green Stripe
2 SMBus Data (SDL) White / Yellow Stripe
3 SMBAlert# White
4 ReturnS Black / White Stripe
5 3.3RS Orange / White Stripe
Notes:
1. It is recommended to use gold plated signal connector contacts on both the PDB
connector and the baseboard header.
2. If the server signal connector is unplugged, the PS/PDB-combo shall not shut down or
go into an OVP condition.
2.6.4 P4 – Hard Drive / Backplane Power Connector
Connector housing: 6 Pin Molex Mini-Fit Jr. PN# 39-01-2065
Contact: Molex Mini-Fit, HCS, Female, Crimp 44476
Table 6. P4 Hard Drive Interface Board Power Connector
PIN SIGNAL 18 AWG Colors PIN SIGNAL 18 AWG Colors
1 COM Black 4 +12 V4 Yellow
2 COM Black 5 +12 V4 Yellow
3 5V Red 6 5VSB Purple
2.6.5 P5 – Peripheral Power Connector
Connector housing: Amp 1-480424-0 or equivalent
Contact: Amp 61314-1 or equivalent
Table 7. P5 HDD Power Connector
PIN SIGNAL 18 AWG Colors
1 +12 V4 Yellow
2 COM Black
3 COM Black
4 +5 VDC Red
2.7 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.
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2.7.1 AC Inlet Connector
The AC input connector is an IEC 320 C-14 power inlet. This inlet is rated for 15A / 250VAC.
2.7.2 Efficiency
The power supply combo (PS+PDB) has a minimum efficiency of 80% at maximum load and
over 100-240VAC line voltage range to guarantee proper power supply cooling while mounted
in the system.
2.7.3 AC Input Voltage Specification
The power supply module operates 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 8. AC Input Rating
Start-up
PARAMETER MIN RATED MAX
Line Voltage (110)
Line Voltage (220)
Frequency 47 Hz 50/60Hz 63 Hz
100-127 V
90V
rms
180V
200-240 V
rms
140V
rms
264V
rms
rms
- -
rms
Vac
85Vac ±4Vac 75Vac
Power
Off
Vac
±5Vac
Max Input
AC Current
1,3
9.9 A
5.0 A
rms
rms
2,3
Max Rated
Input AC
Current
8.9A
rms
4.5A
rms
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.
2.7.4 AC Line Dropout / Holdup
An AC line dropout is defined to be when the AC input drops to 0VAC at any phase of the AC
line for any length of time. During an AC dropout of one cycle or less the power supply must
meet dynamic voltage regulation requirements over the rated load. An AC line dropout of one
cycle or less (20ms min) shall not cause any tripping of control signals or protection circuits (=
20ms holdup time requirement). If the AC dropout lasts longer than one cycle the power supply
should recover and meet all turn-on requirements. The power supply must meet the AC dropout
requirement over rated AC voltages, frequencies, and output loading conditions. Any dropout of
the AC line shall not cause damage to the power supply. The min holdup time requirement is as
follows:
4
4
20ms Min when tested under the following conditions: Max combined load = 600W, Line =
90Vac/47Hz,
18ms Min when tested under the following conditions: Max combined load = 650W, Line =
90Vac/47Hz, and 14ms Min when tested under the following conditions: Max combined load =
700W, Line = 90Vac/47Hz.
Note: The B+ bulk cap voltage shall not exceed 400Vpk at any time.
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Power Sub-system Intel® Server Chassis SR2400
2.7.4.1 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).
2.7.5 AC Line Fuse
The power supply has a single line fuse, on the Line (Hot) wire of the AC input. The line fusing
is acceptable for all safety agency requirements. The input fuse is a slow blow type. AC inrush
current shall not cause the AC line fuse to blow under any conditions. All protection circuits in
the power supply shall not cause the AC fuse to blow unless a component in the power supply
has failed. This includes DC output load short conditions.
2.7.6 AC Inrush
The peak AC inrush current shall be less than 40A peak for one-quarter of the AC cycle and
less then the ratings of power supply’s critical AC input components, including: input fuse, bulk
caps, rectifiers, and surge limiting device. Also, a single inrush current disturbance I²t value
MUST NOT exceed 20% of the I²t rating of the power supply’s AC input fuse. 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
cold inrush).
, (includes hot and
op
2.7.7 AC Line Surge
The power supply is tested with the system for immunity to AC Ring Wave and AC
Unidirectional wave, both up to 2kV, per EN 55024:1998, EN 61000-4-5:1995 and ANSI
C62.45: 1992.
The pass criteria include: No unsafe operation is allowed under any condition; all power supply
output voltage levels to stay within proper spec levels; No change in operating state or loss of
data during and after the test profile; No component damage under any condition.
2.7.8 AC Line Transient Specification
AC line transient conditions shall be defined as “sag” and “surge” conditions. “Sag” conditions
are also commonly referred to as “brownout”, these conditions will be defined as the AC line
voltage dropping below nominal voltage conditions. “Surge” will be defined to refer to conditions
when the AC line voltage rises above nominal voltage.
The power supply shall meet the requirements under the following AC line sag and surge
conditions.
Table 9. AC Line Sag Transient Performance
AC Line Sag (10sec interval between each sagging)
Duration Sag Operating AC Voltage Line Frequency Performance Criteria
Continuous 10% Nominal AC Voltage ranges 50/60Hz No loss of function or performance
0 to 1 AC
cycle
> 1 AC cycle >30% Nominal AC Voltage ranges 50/60Hz Loss of function acceptable, self
95% Nominal AC Voltage ranges 50/60Hz No loss of function or performance
recoverable
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Table 10. AC Line Surge Transient Performance
AC Line Surge
Duration Surge Operating AC Voltage Line Frequency Performance Criteria
Continuous 10% Nominal AC Voltages 50/60Hz No loss of function or performance
0 to ½ AC
cycle
30% Mid-point of nominal AC
Voltages
50/60Hz No loss of function or performance
2.7.9 AC Line Fast Transient (EFT) Specification
The power supply meets the EN61000-4-5 directive and any additional requirements in
IEC1000-4-5:1995 and the Level 3 requirements for surge-withstand capability, with the
following conditions and exceptions:
• These input transients must not cause any out-of-regulation conditions, such as
overshoot and undershoot, nor must it cause any nuisance trips of any of the power
supply protection circuits.
• The surge-withstand test must not produce damage to the power supply.
The supply must meet surge-withstand test conditions under maximum and minimum
DC-output load conditions.
2.7.10 AC Line Leakage Current
The maximum leakage current to ground for each power supply module shall be not more then
3.5mA when tested at 240VAC.
2.8 DC Output Specification
2.8.1 Power Supply Mating Connector
The power distribution board provides an edge connector slot for each of the supported power
supply modules. Each power module has a keyed edge connector which is blind mated to the
edge connector slot of the PDB. The following table provides the pinout for both the connector
and slot.
Table 11. Power Supply Edge Connector Slot Pinout
Description Pin# Pin# Description
12VLS 1 70 PSON#
PWOK 2 69 PSKill
Reserved 3 68 SMBus SDA
Reserved 4 67 SMBus SCL
5VSB 5 66 Address A0
5VSB 6 65 Address A1
15Vcc (SB) 7 64 PSAlert#
ReturnS 8 63 12VS
Ground 9 62 Ground
Ground 10 61 Ground
Ground 11 60 Ground
Ground 12 59 Ground
Ground 13 58 Ground
Ground 14 57 Ground
Ground 15 56 Ground
Ground 16 55 Ground
Ground 17 54 Ground
Ground 18 53 Ground
70
1
36
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Power Sub-system Intel® Server Chassis SR2400
Description Pin# Pin# Description
Ground 19 52 Ground
Ground 20 51 Ground
Ground 21 50 Ground
Ground 22 49 Ground
Keying Notch
+12V 23 48 +12V
+12V 24 47 +12V
+12V 25 46 +12V
+12V 26 45 +12V
+12V 27 44 +12V
+12V 28 43 +12V
+12V 29 42 +12V
+12V 30 41 +12V
+12V 31 40 +12V
+12V 32 39 +12V
+12V 33 38 +12V
+12V 34 37 +12V
+12V 35 36 +12V
Figure 14. Power Module Edge Connector View
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2.8.2 Grounding
The ground of the pins of the PDB output connectors provides the power return path. The
output connector ground pins are connected to safety ground (PDB enclosure).
2.8.3 Standby Output / Standby Mode
The 5VSB output shall be present when an AC input greater than the power supply turn-on AC
voltage is applied. Applying an external 5.25V to 5Vsb shall not cause the power supply to shut
down or exceed operating limits. When the external voltage is removed the voltage shall return
to the power supplies operating voltage without exceeding the dynamic voltage limits.
2.8.4 Remote Sense
The PDB 12V to 3.3V and 5V converters use remote senses to regulate out voltage drops in the
system for the +3.3V output. The remote sense output impedance to this DC/DC converter
must be greater than 200Ω. This is the value of the resistor connecting the remote sense to the
output voltage internal to the DC/DC converter. Remote sense must be able to regulate out of
up to 300mV drop on the +3.3V and 5V outputs. Also, the power supply ground return remote
sense (ReturnS) passes through the PDB and the output harness to regulate out ground drops
for its +12V and 5Vsb output voltages. The power supply uses remote sense (12VRS) to
regulate out drops up to the 240VA protection circuit on the PDB.
2.8.5 Power Module Output Power / Currents
The following table defines power and current ratings for the 700W continuous (810W pk) power
supply in 1+0 or 1+1 redundant configurations. The combined output power of both outputs
shall not exceed the rated output power. The power supply module must meet both static and
dynamic voltage regulation requirements for the minimum loading conditions. Also, the power
module shall be able to supply the listed peak currents and power for a minimum of 10 seconds.
Outputs are not required to be peak loaded simultaneously.
Table 12. Load Ratings
+12V +5Vsb
MAX Load
MIN DYNAMIC Load
MIN STATIC Load
PEAK Load (10 sec min)
Max Output Power (continuous), see note 1
Peak Output Power (for 10s min), see note 2
Note:
1. In reality, at max load the 12V output voltage is allowed to sag to –3%, which is 11.64V; so
the actual max power will then be: 11.64V x 58A = 675.12 W, and the same applies for
5VSB: 4.85Vx2A=9.7W; so total max continuous Power = 675.12+9.7=684.82W
2. In reality, at peak load the 12V output voltage is allowed to sag to –3%, which is 11.64V; so
the actual peak power will then be: 11.64V x 67A = 780 W; and the same applies to 5VSB:
4.85Vx2.5A=12.125W. The total peak power = 792 W pk.
58.0A 2.0A
5.0A 0.1A
1.0A 0A
67.0A 2.5A
12V x 58A = 696W max 5V x 2A = 10W max
12V x 67A = 804W pk 5V x 2.5A = 12.5W pk
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Intel order number C78845-001
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