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Document Number: DSP0134 2
Date: 2011-01-26 3
Version: 2.7.1 4
System Management BIOS (SMBIOS) Reference 5
Specification 6
Document Type: Specification 7
Document Status: DMTF Standard 8
Document Language: en-US 9
10
System Management BIOS (SMBIOS) Reference Specification DSP0134
2 DMTF Standard Version 2.7.1
Copyright Notice 11
Copyright © 2000, 2002, 2004–2011 Distributed Management Task Force, Inc. (DMTF). All rights
12
reserved.
13
DMTF is a not-for-profit association of industry members dedicated to promoting enterprise and systems 14
management and interoperability. Members and non-members may reproduce DMTF specifications and 15
documents, provided that correct attribution is given. As DMTF specifications may be revised from time to 16
time, the particular version and release date should always be noted. 17
Implementation of certain elements of this standard or proposed standard may be subject to third party 18
patent rights, including provisional patent rights (herein "patent rights"). DMTF makes no representations 19
to users of the standard as to the existence of such rights, and is not responsible to recognize, disclose, 20
or identify any or all such third party patent right, owners or claimants, nor for any incomplete or 21
inaccurate identification or disclosure of such rights, owners or claimants. DMTF shall have no liability to 22
any party, in any manner or circumstance, under any legal theory whatsoever, for failure to recognize, 23
disclose, or identify any such third party patent rights, or for such party’s reliance on the standard or 24
incorporation thereof in its product, protocols or testing procedures. DMTF shall have no liability to any 25
party implementing such standard, whether such implementation is foreseeable or not, nor to any patent 26
owner or claimant, and shall have no liability or responsibility for costs or losses incurred if a standard is 27
withdrawn or modified after publication, and shall be indemnified and held harmless by any party 28
implementing the standard from any and all claims of infringement by a patent owner for such 29
implementations. 30
For information about patents held by third-parties which have notified the DMTF that, in their opinion, 31
such patent may relate to or impact implementations of DMTF standards, visit 32
http://www.dmtf.org/about/policies/disclosures.php
. 33
DSP0134 System Management BIOS (SMBIOS) Reference Specification
Version 2.7.1 DMTF Standard 3
CONTENTS 34
Foreword ....................................................................................................................................................... 9
35
Introduction .................................................................................................................................................10
36
Document Conventions....................................................................................................................... 10
37
Typographical Conventions
......................................................................................................10 38
Document Version Number Conventions
................................................................................. 10 39
1
Scope ..................................................................................................................................................13 40
2
Normative references.......................................................................................................................... 13 41
3
Terms and definitions .......................................................................................................................... 14 42
4
Symbols and abbreviated terms.......................................................................................................... 15 43
5
Accessing SMBIOS Information..........................................................................................................21 44
5.1
General ..................................................................................................................................... 21 45
5.2
Table Convention......................................................................................................................21 46
5.2.1
SMBIOS Structure Table Entry Point........................................................................... 21 47
6
SMBIOS Structures............................................................................................................................. 22 48
6.1
Structure Standards.................................................................................................................. 23 49
6.1.1
Structure Evolution and Usage Guidelines.................................................................. 23 50
6.1.2
Structure Header Format.............................................................................................24 51
6.1.3
Text Strings.................................................................................................................. 24 52
6.2
Required Structures and Data ..................................................................................................25 53
6.3
SMBIOS Fields and CIM MOF Properties ................................................................................ 26 54
7
Structure Definitions............................................................................................................................27 55
7.1
BIOS Information (Type 0)........................................................................................................ 27 56
7.1.1
BIOS Characteristics ................................................................................................... 29 57
7.1.2
BIOS Characteristics Extension Bytes ........................................................................ 30 58
7.2
System Information (Type 1) ....................................................................................................31 59
7.2.1
System — UUID........................................................................................................... 32 60
7.2.2
System — Wake-up Type............................................................................................ 32 61
7.3
Baseboard (or Module) Information (Type 2) ........................................................................... 33 62
7.3.1
Baseboard — Feature Flags........................................................................................ 34 63
7.3.2
Baseboard — Board Type ........................................................................................... 34 64
7.4
System Enclosure or Chassis (Type 3) .................................................................................... 35 65
7.4.1
System Enclosure or Chassis Types........................................................................... 36 66
7.4.2
System Enclosure or Chassis States........................................................................... 38 67
7.4.3
System Enclosure or Chassis Security Status ............................................................38 68
7.4.4
System Enclosure or Chassis — Contained Elements................................................38 69
7.5
Processor Information (Type 4) ................................................................................................ 39 70
7.5.1
Processor Information — Processor Type................................................................... 42 71
7.5.2
Processor Information — Processor Family................................................................ 42 72
7.5.3
Processor ID Field Format........................................................................................... 48 73
7.5.4
Processor Information — Voltage................................................................................48 74
7.5.5
Processor Information — Processor Upgrade............................................................. 49 75
7.5.6
Processor Information — Core Count..........................................................................50 76
7.5.7
Processor Information — Core Enabled...................................................................... 50 77
7.5.8
Processor Information — Thread Count...................................................................... 50 78
7.5.9
Processor Characteristics............................................................................................ 51 79
7.6
Memory Controller Information (Type 5, Obsolete) .................................................................. 51 80
7.6.1
Memory Controller Error Detecting Method................................................................. 53 81
7.6.2
Memory Controller Error Correcting Capability............................................................ 53 82
7.6.3
Memory Controller Information — Interleave Support.................................................53 83
7.6.4
Memory Controller Information — Memory Speeds .................................................... 53 84
7.7
Memory Module Information (Type 6, Obsolete) ...................................................................... 54 85
System Management BIOS (SMBIOS) Reference Specification DSP0134
4 DMTF Standard Version 2.7.1
7.7.1 Memory Module Information — Memory Types .......................................................... 55 86
7.7.2
Memory Module Information — Memory Size ............................................................. 55 87
7.7.3
Memory Subsystem Example...................................................................................... 56 88
7.8
Cache Information (Type 7) ......................................................................................................57 89
7.8.1
Cache Information — Maximum Cache Size and Installed Size.................................59 90
7.8.2
Cache Information — SRAM Type .............................................................................. 59 91
7.8.3
Cache Information — Error Correction Type ...............................................................59 92
7.8.4
Cache Information — System Cache Type ................................................................. 60 93
7.8.5
Cache Information — Associativity.............................................................................. 60 94
7.9
Port Connector Information (Type 8) ........................................................................................ 61 95
7.9.1
Port Information Example ............................................................................................ 61 96
7.9.2
Port Information — Connector Types .......................................................................... 61 97
7.9.3
Port Types.................................................................................................................... 63 98
7.10
System Slots (Type 9)............................................................................................................... 64 99
7.10.1
System Slots — Slot Type ...........................................................................................64 100
7.10.2
System Slots — Slot Data Bus Width..........................................................................66 101
7.10.3
System Slots — Current Usage................................................................................... 66 102
7.10.4
System Slots — Slot Length........................................................................................ 67 103
7.10.5
System Slots — Slot ID ...............................................................................................67 104
7.10.6
Slot Characteristics 1................................................................................................... 67 105
7.10.7
Slot Characteristics 2................................................................................................... 68 106
7.10.8
Segment Group Number, Bus Number, Device/Function Number.............................. 68 107
7.11
On Board Devices Information (Type 10, Obsolete)................................................................. 68 108
7.11.1
Onboard Device Types ................................................................................................69 109
7.12
OEM Strings (Type 11) .............................................................................................................69 110
7.13
System Configuration Options (Type 12).................................................................................. 69 111
7.14
BIOS Language Information (Type 13).....................................................................................70 112
7.15
Group Associations (Type 14) ..................................................................................................71 113
7.16
System Event Log (Type 15) .................................................................................................... 72 114
7.16.1
Supported Event Log Type Descriptors....................................................................... 75 115
7.16.2
Indexed I/O Access Method......................................................................................... 75 116
7.16.3
Access Method Address — DWORD Layout .............................................................. 76 117
7.16.4
Event Log Organization ...............................................................................................76 118
7.16.5
Log Header Format...................................................................................................... 76 119
7.16.6
Log Record Format...................................................................................................... 78 120
7.17
Physical Memory Array (Type 16) ............................................................................................82 121
7.17.1
Memory Array — Location........................................................................................... 83 122
7.17.2
Memory Array — Use .................................................................................................. 84 123
7.17.3
Memory Array — Error Correction Types .................................................................... 84 124
7.18
Memory Device (Type 17) ........................................................................................................85 125
7.18.1
Memory Device — Form Factor................................................................................... 87 126
7.18.2
Memory Device — Type .............................................................................................. 87 127
7.18.3
Memory Device — Type Detail.................................................................................... 88 128
7.18.4
Memory Device — Extended Size............................................................................... 89 129
7.19
32-Bit Memory Error Information (Type 18).............................................................................. 89 130
7.19.1
Memory Error — Error Type ........................................................................................ 90 131
7.19.2
Memory Error — Error Granularity............................................................................... 90 132
7.19.3
Memory Error — Error Operation ................................................................................ 90 133
7.20
Memory Array Mapped Address (Type 19)............................................................................... 91 134
7.21
Memory Device Mapped Address (Type 20)............................................................................ 92 135
7.22
Built-in Pointing Device (Type 21) ............................................................................................ 93 136
7.22.1
Pointing Device — Type .............................................................................................. 94 137
7.22.2
Pointing Device — Interface ........................................................................................ 94 138
7.23
Portable Battery (Type 22)........................................................................................................ 95 139
7.23.1
Portable Battery — Device Chemistry ......................................................................... 97 140
7.24
System Reset (Type 23) ...........................................................................................................97 141
DSP0134 System Management BIOS (SMBIOS) Reference Specification
Version 2.7.1 DMTF Standard 5
7.25 Hardware Security (Type 24)....................................................................................................98 142
7.26
System Power Controls (Type 25)............................................................................................ 99 143
7.26.1
System Power Controls — Calculating the Next Scheduled Power-on Time ........... 100 144
7.27
Voltage Probe (Type 26)......................................................................................................... 100 145
7.27.1
Voltage Probe — Location and Status ......................................................................101 146
7.28
Cooling Device (Type 27) ....................................................................................................... 102 147
7.28.1
Cooling Device — Device Type and Status............................................................... 102 148
7.29
Temperature Probe (Type 28) ................................................................................................103 149
7.29.1
Temperature Probe — Location and Status ..............................................................104 150
7.30
Electrical Current Probe (Type 29) ......................................................................................... 104 151
7.30.1
Current Probe — Location and Status.......................................................................105 152
7.31
Out-of-Band Remote Access (Type 30)..................................................................................106 153
7.32
Boot Integrity Services (BIS) Entry Point (Type 31) ...............................................................107 154
7.33
System Boot Information (Type 32)........................................................................................107 155
7.33.1
System Boot Status ...................................................................................................107 156
7.34
64-Bit Memory Error Information (Type 33)............................................................................ 108 157
7.35
Management Device (Type 34) ..............................................................................................109 158
7.35.1
Management Device — Type ....................................................................................109 159
7.35.2
Management Device — Address Type...................................................................... 110 160
7.36
Management Device Component (Type 35)........................................................................... 110 161
7.37
Management Device Threshold Data (Type 36)..................................................................... 111 162
7.38
Memory Channel (Type 37) ....................................................................................................111 163
7.38.1
Memory Channel — Channel Type ...........................................................................112 164
7.39
IPMI Device Information (Type 38).........................................................................................112 165
7.39.1
IPMI Device Information — BMC Interface Type....................................................... 114 166
7.40
System Power Supply (Type 39) ............................................................................................ 114 167
7.40.1
Power Supply Characteristics.................................................................................... 116 168
7.41
Additional Information (Type 40)............................................................................................. 116 169
7.41.1
Additional Information Entry Format ..........................................................................117 170
7.42
Onboard Devices Extended Information (Type 41) ................................................................ 118 171
7.42.1
Reference Designation .............................................................................................. 119 172
7.42.2
Onboard Device Types ..............................................................................................119 173
7.42.3
Device Type Instance ................................................................................................ 119 174
7.42.4
Segment Group Number, Bus Number, Device/Function Number............................ 119 175
7.43
Management Controller Host Interface (Type 42) ..................................................................119 176
7.44
Inactive (Type 126) .................................................................................................................121 177
7.45
End-of-Table (Type 127)......................................................................................................... 121 178
Annex A (informative) Conformance Gui
delines......................................................................................122 179
Annex B (informative) Usi
ng the Table Convention................................................................................. 125 180
Annex C (informative) Change Hi
story .................................................................................................... 126 181
Bibliography
..............................................................................................................................................136 182
183
Tables 184
Table 1 – SMBIOS Entry P
oint Structure.................................................................................................... 21 185
Table 2 – Structure Header Format Desc
ription ......................................................................................... 24 186
Table 3 – Required Struct
ures and Data .................................................................................................... 25 187
Table 4 – Relationship Between SMBIOS Fields and CIM MOF Properties
.............................................. 26 188
Table 5 – BIOS Information (Type 0) Struc
ture .......................................................................................... 27 189
Table 6 – BIOS Charac
teristics...................................................................................................................29 190
Table 7 – BIOS Characteris
tics Extension Byte 1 ...................................................................................... 30 191
Table 8 – BIOS Characteris
tics Extension Byte 2 ...................................................................................... 30 192
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