Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Revision History
Revision History
Date Revision
Number
June 2004 1.0 Initial Release
November 2004 2.0
Updated and clarified memory support, removed LX SKU references, added MTBF
calculations, performed general grammar and spelling updates.
Modifications
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ii
Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS 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 SE7320SP2 and server board SE7525GP2s 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.
Xeon is a registered trademark of Intel Corporation.
*Other brands and names may be claimed as the property of others.
Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Introduction
1. Introduction
This Technical Product Specification (TPS) provides detail to the architecture and feature set of
the Intel
The target audience for this document is anyone wishing to obtain more in depth detail of the
server board than what is generally made available in the board’s Users Guide. It is a technical
document meant to assist people with understanding and learning more about the specific
features of the board.
This is one of several technical documents available for this server board. All of the functional
sub-systems that make up the board are described in this document. However, certain low level
detail of specific sub-systems is not included. Design level information for specific sub-systems
can be obtained by ordering the External Product Specification (EPS) for a given sub-system.
The EPS documents available for this server board include the following:
These documents are not made publicly available and must be ordered by your local Intel
representative.
®
Server Board SE7320SP2 and the Intel Server Board SE7525GP2.
o SE7320SP2 BIOS EPS
o SE7320SP2 Baseboard Management Controller (BMC) Firmware EPS
o Mini-Baseboard Management Controller (mBMC) Core EPS
1.1 Chapter Outline
This document is divided into the following chapters
Chapter 1 – Introduction
Chapter 2 – Server Board Overview
Chapter 3 – Functional Architecture
Chapter 4 – System BIOS
Chapter 5 – Platform Management
Chapter 6 – Error Reporting and Handling
Chapter 7 – Connector Definitions and Pin-Outs
Chapter 8 – General Specifications
Chapter 9 – Product Regulatory Compliance
Appendix A – Integration and Usage Tips
Appendix B – Glossary of Terms
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Introduction
1.2 Server Board Use Disclaimer
Intel Corporation server boards contain a number of high-density VLSI and power delivery
components which need adequate airflow to cool. Intel ensures through its own chassis
development and testing that when Intel server building blocks are used together, the fully
integrated system will meet the intended thermal requirements of these components. It is the
responsibility of the system integrator who chooses not to use Intel developed server building
blocks to consult vendor datasheets and operating parameters to determine the amount of air
flow required for their specific application and environmental conditions. Intel Corporation can
not be held responsible, if components fail or the server board does not operate correctly when
used outside any of their published operating or non-operating limits.
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Server Board Overview
2. Server Board Overview
The Intel® Server Boards SE7320SP2 and SE7525GP2 are both monolithic printed circuit
boards with features that were designed to support the entry level server market. Additionally,
the server board SE7525GP2 also has features making it suitable for the entry level workstation
market. The features of both boards will be discussed in detail in this document.
2.1 SE7320SP2 SKU Availability
There is one SKU of the server board SE7320SP2. This product is based on the Intel E7320
chipset and provides an interface to a single PCI-Express bus, one 32-bit / 33MHz PCI Bus and
one 64-bit / 66MHz PCI-X bus. Additionally, integrated on the board is a gigabit NIC and an
ATI* Rage XL video solution. A detailed list of the features is listed below.
• Four DIMM slots supporting DDR 266/333 MHz memory
• Single Intel 82541 10/100/1000 Network Interface Controller (NIC)
• On board ATI* Rage XL video controller w/8MB SDRAM
• Intel Server Management support
• External IO connectors
o Stacked PS2 ports for keyboard and mouse
o DB-9 Serial A Port
o RJ45 NIC connector
o 15 pin video connector
o 2 - USB 2.0 ports
• Internal IO Connectors / Headers
o On-board USB port headers (capable of supporting 2 USB ports)
o DH10 Serial B Header
o 2 – SATA-100 connectors w/integrated chipset RAID 0/1 support
o 2 – ATA100 connectors
o Floppy connector
o SSI compliant front panel headers
o SSI compliant 24 pin main power connector (will support ATX-12V standard in
first 20 pins)
• Internal expansion connectors
o 1 – x 8 PCI-Express connector (on x4 PCI-Express bus)
o 2 – 32-bit/33MHz PCI connectors
o 2 – 64-bit/66MHz PCI-X connectors
• Light Guided Diagnostics on some FRU devices (Processors, Memory)
• Port-80 Diagnostic LEDs displaying POST Codes
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Server Board Overview
The following figure shows the board layout of the server board SE7320SP2. Each connector
and major component is identified by number and identified in Table 1: server board SE7320SP2 Layout Reference.
13
11
12
19
18
14
15
10
8
17
6
2
16
Figure 1 - SE7320SP2 Board Layout
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Server Board Overview
Table 1: server board SE7320SP2 Layout Reference
Ref # Description Ref # Description
1 Processor Sockets 11 Front panel header
DIMM connectors (from left to right 2A,
2
2B, 1A, 1B) 12
3 2 External USB connectors 13 Floppy connector
4 Keyboard and mouse connector 14 Main jumper block
5 Stacked video and serial 15 Serial B header
6 Main power 16 12V CPU power
7 RJ45 Gigabit NIC connector 17 Post Code LEDs
8 32-bit PCI slots 18 SATA connectors (left to right A2, A1)
9 PCI-Express x8 connector (x4 bus) 19 Front panel USB header
Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Server Board Overview
2.2 SE7525GP2 SKU Availability
One SKU of the server board SE7525GP2 is offered. This section describes its feature set.
While largely similar to the server board SE7320SP2, there are specific features making this
server board suitable for an entry level workstation solution as well as an entry server
environment.
2.2.1 SE7525GP2 Feature Set
•Dual processor slots supporting Intel® Xeon™ processors operating on the 800MT/s
system bus
• Intel E7525 Chipset (MCH, ICH-5R)
• Four DIMM slots supporting DDR 266/333 MHz memory
• Single Intel 82541 10/100/1000 Network Interface Controller (NIC)
• On board ATI* Rage XL video controller w/8MB SDRAM
• Intel Server Management support
• External IO connectors
o Stacked PS2 ports for keyboard and mouse
o DB-9 Serial A Port
o RJ45 NIC connector
o 15 pin video connector
o 2 – USB 2.0 ports
• Internal IO Connectors / Headers
o On-board USB port headers (capable of supporting 2 USB ports)
o DH10 Serial B Header
o 2 – SATA-100 connectors with integrated chipset RAID 0/1 support
o 2 – ATA100 connectors
o Floppy connector
o SSI compliant front panel headers
o SSI compliant 24 pin main power connector (will support ATX-12V standard in
first 20 pins)
•Internal expansion connectors
o 1 – x16 PCI-Express Graphics connector
o 1 – x 8 PCI-Express connector (on x4 PCI-Express bus)
o 2 – 32-bit/33MHz PCI connectors
o 2 – 64-bit/66MHz PCI-X connectors
• Light Guided Diagnostics on most FRU devices (Processors, Memory)
• Port-80 Diagnostic LEDs displaying POST Codes
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Server Board Overview
The following figure shows the board layout of the server board SE7525GP2. Each connector
and major component is identified by number and identified in Table 2: server board
SE7525GP2 Layout Reference.
13
11
12
19
18
14
15
10
8
20
2
16
Figure 2 - SE7525GP2 Board Layout
17
6
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Server Board Overview
Table 2: server board SE7525GP2 Layout Reference
Ref # Description Ref # Description
1 Processor Sockets 11 Front panel header
DIMM connectors (from left to right
2
3 2 External USB connectors 13 Floppy connector
4 Keyboard and mouse connector 14 Main jumper block
5 Stacked video and serial 15 Serial B header
6 Main power 16 12V CPU power
7 RJ45 Gigabit NIC connector 17 Post Code LEDs
8 32-bit PCI slots 18 SATA connectors (left to right A2, A1)
9 PCI-Express x8 connector (x4 bus) 19 Front panel USB header
Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Functional Architecture
3. Functional Architecture
This chapter provides a high-level description of the functionality associated with the
architectural blocks that make up the Intel Server Board SE7320SP2 and the Intel Server Board
SE7525GP2.
Note: Due to the similarities between these two products, this chapter will discuss all the
features that are present on both products. Where appropriate, specific features to one product
or the other will be called out.
Figure 3 – Server Board SE7320SP2 Block Diagram
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Functional Architecture
Figure 4 –Server Board SE7525GP2 Block Diagram
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Functional Architecture
3.1 Processor Sub-system
The support circuitry for the processor sub-system consists of the following:
• Dual 604-pin zero insertion force (ZIF) processor sockets
• Processor host bus AGTL+ support circuitry
• Reset configuration logic
• Processor module presence detection logic
• BSEL detection capabilities
• CPU signal level translation
• Common Enabling Kit (CEK) CPU retention support
3.1.1 Processor VRD
The server board has two Voltage Regulator Devices (VRDs) providing the appropriate voltages
to the installed processors. Each VRD is compliant with the VRD 10.1 specification and is
designed to support Intel
of 105 Amps and peak support of 120A.
The server board supports the Flexible Mother Board (FMB) specification for all 800MHz FSB
Intel Xeon processors with respect to current requirements and processor speed requirements.
FMB is an estimation of the maximum values the 800MHz FSB versions of the Intel Xeon
processors will have over their lifetime. The value is only an estimate and actual specifications
for future processors may differ. At present, the current demand per FMB is a sustained
maximum of a 105 Amps and peak support of 120 Amps.
®
Xeon™ processors that require up to a sustained maximum current
3.1.2 Reset Configuration Logic
The BIOS determines the processor stepping, cache size, etc through the CPUID instruction. All
processors in the system must operate at the same frequency; have the same cache sizes and
same VID. No mixing of product families is supported. Processors run at a fixed speed and
cannot be programmed to operate at a lower or higher speed.
3.1.3 Processor Module Presence Detection
Logic is provided on the server board to detect the presence and identity of installed processors.
In dual processor configurations, the on-board mini Baseboard Management Controller (mBMC)
must read the processor voltage identification (VID) bits for each processor before turning on
the VRD. If the VIDs of the two processors are not identical, then the mBMC will not turn on the
VRD. Prior to enabling the embedded VRD, circuitry on the server board ensures that the
following criteria are met:
• In a uni-processor configuration, CPU 1 is installed.
• Only supported processors are installed in the system to prevent damage to the MCH.
• In dual processor configurations, both processors support the same FSB frequency.
3.1.4 GTL2006
The GTL2006 is a 13-bit translator designed for 3.3V to GTL/GTL+ translations to the system
bus. The translator incorporates all the level shifting and logic functions required to interface
between the processor subsystem and the rest of the system.
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Functional Architecture
3.1.5 Common Enabling Kit (CEK) Design Support
The server board has been designed to comply with Intel’s Common Enabling Kit (CEK)
processor mounting and heat sink retention solution. The server board will ship with a CEK
spring snapped onto the bottom side of the board beneath each processor socket. The CEK
spring is removable, allowing for the use of non-Intel heat sink retention solutions.
Heatsink assembly with
integrated hardware
Thermal Interface
Material (TIM)
Server board
CEK Spring
Chassis
Figure 5. CEK Processor Mounting
3.1.6 Processor Support
The server board SE7320SP2 and the server board SE7525GP2 are designed to support one
or two Intel
2.8 GHz. Previous generations of Intel Xeon processors are not supported on either of these
server boards.
The server board is designed to provide current up to 120A per processors. Processors with
higher current requirements are not supported.
Note: Only Intel
the server board SE7320SP2 and server board SE7525GP2. See the table below for the
supported processors.
®
Xeon™ processors utilizing an 800MHz Front Side Bus with frequencies starting at
®
Xeon™ processors that support an 800MHz Front Side Bus are supported on
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Functional Architecture
Table 3: Processor Support Matrix
Processor Family FSB Frequency Frequency Support
Intel® Xeon™ 533 MHz 2.8 GHz No
Intel® Xeon™ 533 MHz 3.06 GHz No
Intel® Xeon™ 533 MHz 3.2 GHz No
Intel® Xeon™ 800MHz 2.8 GHz Yes
Intel® Xeon™ 800MHz 3.0 GHz Yes
Intel® Xeon™ 800MHz 3.2 GHz Yes
Intel® Xeon™ 800MHz 3.4 GHz Yes
Intel® Xeon™ 800MHz 3.6 GHz Yes
3.1.6.1 Processor Mis-population Detection
The processors must be populated in the correct order for the processor Front Side Bus to be
correctly terminated. CPU socket 1 must be populated before CPU socket 2. Server board logic
will prevent the system from powering up if a single processor is present but it is not in the
correct socket. This protects the logic against voltage swings or unreliable operation that could
occur on an incorrectly terminated Front Side Bus.
If processor mis-population is detected when using the standard on-board platform
instrumentation, the mBMC will log an error against processor 1 to the System Event Log and
the server board hardware will illuminate both processor error LEDs.
3.1.6.2 Mixed Processor Steppings
For optimum system performance, only identical processors should be installed in a system.
Processor steppings within a common processor family can be mixed in a system provided that
there is no more than a one stepping difference between them. If the installed processors are
more than one stepping apart, an error is reported. Acceptable mixed steppings are not
reported as errors by the BIOS.
3.1.6.3 Mixed Processor Models
Processor models cannot be mixed in a system. If this condition is detected, an error (8196) is
logged in the SEL.
3.1.6.4 Mixed Processor Families
Processor families cannot be mixed in a system. If this condition is detected, an error (8194) is
logged in the SEL.
3.1.6.5 Mixed Processor Cache Sizes
If the installed processors have mixed cache sizes, an error (8192) will be logged in the SEL.
The size of all cache levels must match between all installed processors. Mixed cache
processors are not supported.
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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Functional Architecture
3.1.6.6 Jumperless Processor Speed Settings
®
The Intel
XeonTM processor does not utilize jumpers or switches to set the processor frequency.
The BIOS reads the highest ratio register from all processors in the system. If all processors are
the same speed, the Actual Ratio register is programmed with the value read from the High
Ratio register. If all processors do not match, the highest common value between High and Low
Ratio is determined and programmed to all processors. If there is no value that works for all
installed processors, all processors not capable of speeds supported by the Boot Strap
Processor (BSP) are disabled and an error is displayed.
3.1.6.7 Microcode
IA-32 processors have the capability of correcting specific errata through the loading of an Intel
supplied data block, i.e., microcode update. The BIOS is responsible for storing the update in
non-volatile memory and loading it into each processor during POST. The BIOS allows a
number of microcode updates to be stored in the flash, limited by the amount of free space
available. The BIOS supports variable size microcode updates. The BIOS verifies the
signature prior to storing the update in the flash.
3.1.6.8 Processor Cache
The BIOS enables all levels of processor cache as early as possible during POST. There are no
user options to modify the cache configuration, size or policies. The largest and highest level
cache detected is reported in the BIOS Setup.
3.1.6.9 Hyper-Threading Technology
®
Intel
XeonTM processors support Hyper-Threading Technology. The BIOS detects processors
that support this feature and enables the feature during POST. The BIOS Setup provides an
option to selectively enable or disable this feature. The default behavior is “Enabled”.
The BIOS creates additional entries in the ACPI MP tables to describe the virtual processors.
The SMBIOS Type 4 structure shows only the physical processors installed. It does not
describe the virtual processors because some operating systems are not able to efficiently
utilize the Hyper-Threading Technology.
3.1.6.10 Intel
Intel Xeon processors support the Geyserville3 (GV3) feature of the Intel
®
SpeedStep® Technology
®
SpeedStep®
Technology. This feature changes the processor operating ratio and voltage similar to the
Thermal Monitor 2 (TM2) feature. It must be used in conjunction with the TM1 or TM2 feature.
The BIOS implements the GV3 feature in conjunction with the TM2 feature.
3.1.6.11 EM64T Technology Support
The system BIOS on the server board SE7320SP2 and server board SE7525GP2 supports the
Intel Extended Memory 64 technology (EM64T) of the Intel Xeon processors. There is no BIOS
setup option to enable or disable this support. The system will be in IA-32 compatibility mode
when booting to an operating system. Operating system specific drivers are then loaded to
enable this capability.
3.1.6.12 Execute Disable Bit support
The system BIOS on the server board SE7320SP2 and server board SE7525GP2 supports the
Execute Disable (NX) bit in the latest Intel Xeon processors. This option can be enabled or
disabled in the BIOS setup utility. It is disabled by default to allow users to opt-in to the
protection this feature provides.
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