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Platform Management Functional Overview Intel
®
Server Board S2400GP TPS
Revision 1.01
Intel order number G50295-002
64
6.5 Power Control Sources
The server board supports several power control sources which can initiate a power-up or
power-down activity.
Table 16. Power Control Initiators
Source
External Signal Name or
Internal Subsystem
Capabilities
Power button
Front panel power button
Turns power on or off
BMC watchdog timer
Internal BMC timer
Turns power off, or power cycle
Command
Routed through command processor
Turns power on or off, or power cycle
Power state retention
Implemented by means of BMC
internal logic
Turns power on when AC power returns
Chipset
Sleep S4/S5 signal (same as
POWER_ON)
Turns power on or off
CPU Thermal
CPU Thermtrip
Turns power off
WOL(Wake On LAN)
LAN
Turns power on
6.6 BMC Watchdog
The BMC FW is increasingly called upon to perform system functions that are time-critical in
that failure to provide these functions in a timely manner can result in system or component
damage. Intel
®
S1400/S1600/S2400/S2600/S4600 Server Platforms introduce a BMC watchdog
feature to provide a safe-guard against this scenario by providing an automatic recovery
mechanism. It also can provide automatic recovery of functionality that has failed due to a fatal
FW defect triggered by a rare sequence of events or a BMC hang due to some type of HW
glitch (for example, power).
This feature is comprised of a set of capabilities whose purpose is to detect misbehaving
subsections of BMC firmware, the BMC CPU itself, or HW subsystems of the BMC component,
and to take appropriate action to restore proper operation. The action taken is dependent on the
nature of the detected failure and may result in a restart of the BMC CPU, one or more BMC
HW subsystems, or a restart of malfunctioning FW subsystems.
The BMC watchdog feature will only allow up to three resets of the BMC CPU (such as HW
reset) or entire FW stack (such as a SW reset) before giving up and remaining in the uBOOT
code. This count is cleared upon cycling of power to the BMC or upon continuous operation of
the BMC without a watchdog-generated reset occurring for a period of > 30 minutes. The BMC
FW logs a SEL event indicating that a watchdog-generated BMC reset (either soft or hard reset)
has occurred. This event may be logged after the actual reset has occurred. Refer sensor
section for details for the related sensor definition. The BMC will also indicate a degraded
system status on the Front Panel Status LED after an BMC HW reset or FW stack reset. This
state (which follows the state of the associated sensor) will be cleared upon system reset or (AC
or DC) power cycle.
Note: A reset of the BMC may result in the following system degradations that will require a
system reset or power cycle to correct:
- Server Board S2400GP 1
- Revision History 2
- Disclaimers 2
- Table of Contents 3
- Table of Contents Intel 4
- List of Figures 7
- List of Tables 8
- List of Tables Intel 10
- Server Board S2400GP TPS 10
- 1. Introduction 11
- 2. Overview 12
- 2.2 Server Board Layout 14
- 3. Functional Architecture 27
- 3.5 Intel 33
- QuickPath Interconnect 33
- 3.6.1 Supported Memory 34
- 3.6.4 RAS Features 39
- 3.7.1 Network Interface 44
- 3.8 Intel 45
- 3.8.4 AHCI 47
- 3.8.6 PCI Interface 48
- 3.8.13 RTC 49
- 3.8.14 GPIO 49
- 3.8.16 Manageability 50
- 3.8.18 Intel 50
- Overview 53
- 3.10 Super I/O Controller 55
- 3.12.1 Remote KVMS Support 57
- IP Address: Static 58
- All users disabled 58
- 4 System Security 59
- 4.3 TPM security BIOS 60
- 4.3.1 Physical Presence 61
- 4.3.3 Security Screen 62
- 4.4 Intel 63
- System Security Intel 64
- 5 Technology Support 65
- 5.3 Intel 66
- 5.3.1 Hardware Requirements 67
- 6.1.1 IPMI 2.0 Features 68
- 6.1.2 Non IPMI Features 69
- 6.5 Power Control Sources 74
- 6.6 BMC Watchdog 74
- 6.8 Sensor Monitoring 75
- 6.10 System Event Log (SEL) 76
- 6.11 System Fan Management 76
- 6.11.3 Altitude 77
- 6.11.4 Set Fan Profile 77
- 6.11.5 Fan PWM Offset 77
- 6.11.6 Quiet Fan Idle Mode 78
- 6.11.7 Fan Profiles 78
- 6.12 Messaging Interfaces 81
- 6.12.3 LAN Interface 82
- 6.12.7 Secure Shell (SSH) 89
- 6.12.11 Alert Policy Table 90
- 6.12.10 LAN Alerting 90
- 6.12.13 Embedded Web Server 91
- 6.12.14 Virtual Front Panel 93
- 7.1.1 Remote Console 100
- 7.1.2 Performance 100
- 7.2 Media Redirection 101
- 7.2.1 Availability 102
- 7.2.2 Network Port Usage 102
- 8.2 Power Connectors 104
- 8.3.1 Intel 105
- 8.3.2 TPM connector 106
- 8.3.3 LCP Header 106
- 8.3.4 HSBP Header 106
- 8.3.5 SATA SGPIO Header 106
- 8.4 Front Panel Connector 107
- 8.5 I/O Connectors 107
- 8.5.3 SATA Connectors 108
- 8.5.5 USB Connector 110
- 8.6 Fan Headers 111
- Revision 1.01 112
- 9 Jumper Blocks 113
- Jumper Blocks Intel 114
- 9.1.2 Clearing the Password 115
- 9.3 ME Force Update Jumper 116
- 9.4 BIOS Recovery Jumper 116
- Revision 1.01 117
- 10 Intel 118
- Light Guided Diagnostics 118
- 10.2 Fan Fault LEDs 119
- 10.3 CPU Fault LEDs 119
- 10.4 System Status LED 120
- 10.5 DIMM Fault LEDs 123
- C. Diagnostic LED #3 126
- G. Diagnostic LED #7 126
- D. Diagnostic LED #4 126
- 11.2 MTBF 128
- /Triggers 131
- Triggers 133
- Appendix D: POST Code Errors 144
- POST Error Beep Codes 148
- 1-5-4-4 149
- 1-5-1-2 149
- Appendix E: Supported Intel 150
- Server Chassis 150
- Glossary 152
- Glossary Intel 154
- Reference Documents 156
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