System Management BIOS (SMBIOS) Reference 6 Specification

1 1 Document Identifier: DSP0134 2 Date: 2020-07-17 3 Version: 4 System Management BIOS (SMBIOS) Reference 5 Specification 6 Supersedes: 7 Document Class: Normative 8 Document Status: Published 9 Document Language: en-US 10 11 System Management BIOS (SMBIOS) Reference Specification DSP0134 2 Published Version Copyright Notice 12 Copyright 2000, 2002, 2004 2020 DMTF. All rights 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").

2 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26 owner or claimant, and shall have no liability or responsibility for costs or losses incurred if a standard is 27 withdrawn or modified after publication, and shall be indemnified and held harmless by any party 28 implementing the standard from any and all claims of infringement by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.

3 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 33 This document s normative language is English. Translation into other languages is permitted. 34 DSP0134 System Management BIOS (SMBIOS) Reference Specification Version Published 3 CONTENTS 35 Foreword .. 10 36 11 37 Document conventions .. 11 38 Typographical conventions .. 11 39 Document version number conventions .. 11 40 1 Scope .. 15 41 Supported processor architectures .. 15 42 2 Normative references .. 15 43 3 Terms and definitions .. 17 44 4 Symbols and abbreviated terms .. 18 45 5 Accessing SMBIOS information .. 24 46 General .. 24 47 Table convention .. 24 48 SMBIOS (32-bit) Entry Point .. 24 49 SMBIOS (64-bit) Entry Point .. 26 50 6 SMBIOS structures.

4 27 51 Structure standards .. 27 52 Structure evolution and usage guidelines .. 28 53 Structure header format .. 29 54 Text strings .. 29 55 Required structures and data .. 30 56 SMBIOS fields and CIM MOF properties .. 31 57 7 Structure definitions .. 32 58 BIOS Information (Type 0) .. 32 59 BIOS 34 60 BIOS Characteristics Extension 35 61 System Information (Type 1) .. 36 62 System UUID .. 37 63 System Wake-up Type .. 38 64 Baseboard (or Module) Information (Type 2) .. 38 65 Baseboard feature flags .. 39 66 Baseboard Board Type .. 40 67 System Enclosure or Chassis (Type 3) .. 40 68 System Enclosure or Chassis Types .. 42 69 System Enclosure or Chassis 43 70 System Enclosure or Chassis Security Status .. 44 71 System Enclosure or Chassis Contained 44 72 Processor Information (Type 4) .. 45 73 Processor Information Processor Type.

5 48 74 Processor Information Processor Family .. 49 75 Processor ID field format .. 55 76 Processor Information Voltage .. 56 77 Processor Information Processor Upgrade .. 56 78 Processor Information Core 58 79 Processor Information Core Enabled .. 59 80 Processor Information Thread Count .. 59 81 Processor Characteristics .. 59 82 Memory Controller Information (Type 5, Obsolete) .. 60 83 Memory Controller Error Detecting Method .. 61 84 Memory Controller Error Correcting Capability .. 62 85 Memory Controller Information Interleave Support .. 62 86 System Management BIOS (SMBIOS) Reference Specification DSP0134 4 Published Version Memory Controller Information Memory Speeds .. 62 87 Memory Module Information (Type 6, Obsolete) .. 63 88 Memory Module Information Memory Types .. 64 89 Memory Module Information Memory Size.

6 64 90 Memory subsystem example .. 65 91 Cache Information (Type 7) .. 66 92 Cache Information Maximum Cache Size and Installed Size .. 68 93 Cache Information SRAM Type .. 68 94 Cache Information Error Correction Type .. 69 95 Cache Information System Cache Type .. 69 96 Cache Information Associativity .. 69 97 Port Connector Information (Type 8) .. 70 98 Port Information example .. 71 99 Port Information Connector Types .. 71 100 Port Types .. 72 101 System Slots (Type 9).. 73 102 System Slots Slot Type .. 74 103 System Slots Slot Data Bus Width .. 77 104 System Slots Current Usage .. 78 105 System Slots Slot Length .. 78 106 System Slots Slot ID .. 79 107 Slot Characteristics 1 .. 79 108 Slot Characteristics 2 .. 79 109 Segment Group Number, Bus Number, Device/Function Number .. 80 110 Peer Devices .. 80 111 System Slots - Slot Information.

7 81 112 System Slots - Slot Physical Width .. 81 113 System Slots - Slot Pitch .. 81 114 On Board Devices Information (Type 10, Obsolete) .. 81 115 Onboard Device Types .. 82 116 OEM Strings (Type 11) .. 82 117 System Configuration Options (Type 12).. 83 118 BIOS Language Information (Type 13) .. 83 119 Group Associations (Type 14) .. 84 120 System Event Log (Type 15) .. 86 121 Supported Event Log Type descriptors .. 88 122 Indexed I/O Access method .. 88 123 Access Method Address DWORD layout .. 89 124 Event Log organization .. 89 125 Log Header format .. 90 126 Log Record format .. 91 127 Physical Memory Array (Type 16) .. 96 128 Memory Array Location .. 97 129 Memory Array Use .. 97 130 Memory Array Error Correction Types .. 98 131 Memory Device (Type 17) .. 98 132 Memory Device Form Factor .. 102 133 Memory Device Type.

8 103 134 Memory Device Type Detail .. 104 135 Memory Device Memory Speed .. 104 136 Memory Device Extended Size .. 105 137 Memory Device Memory 105 138 Memory Device Memory Operating Mode Capability .. 105 139 Memory Device Module Manufacturer ID .. 105 140 Memory Device Module Product ID .. 106 141 Memory Device Memory Subsystem Controller Manufacturer ID .. 106 142 DSP0134 System Management BIOS (SMBIOS) Reference Specification Version Published 5 Memory Device Memory Subsystem Controller Product ID .. 106 143 Memory Device Volatile Size, Non-volatile Size, Cache Size .. 106 144 Memory Device Type Logical and Logical Size .. 107 145 Memory Device Extended Speed .. 108 146 32-Bit Memory Error Information (Type 18) .. 108 147 Memory Error Error Type .. 109 148 Memory Error Error Granularity .. 109 149 Memory Error Error Operation.

9 110 150 Memory Array Mapped Address (Type 19).. 110 151 Memory Device Mapped Address (Type 20) .. 111 152 Built-in Pointing Device (Type 21) .. 113 153 Pointing Device Type .. 113 154 Pointing Device Interface .. 114 155 Portable Battery (Type 22) .. 114 156 Portable Battery Device Chemistry .. 116 157 System Reset (Type 23) .. 116 158 Hardware Security (Type 24) .. 117 159 System Power Controls (Type 25) .. 118 160 System Power Controls Calculating the Next Scheduled Power-on 119 161 Voltage Probe (Type 26) .. 119 162 Voltage Probe Location and 120 163 Cooling Device (Type 27) .. 121 164 Cooling Device Device Type and Status .. 121 165 Temperature Probe (Type 28) .. 122 166 Temperature Probe Location and Status .. 123 167 Electrical Current Probe (Type 29) .. 124 168 Current Probe Location and Status .. 124 169 Out-of-Band Remote Access (Type 30).

10 125 170 Boot Integrity Services (BIS) Entry Point (Type 31) .. 126 171 System Boot Information (Type 32) .. 126 172 System boot status .. 126 173 64-Bit Memory Error Information (Type 33) .. 127 174 Management Device (Type 34) .. 128 175 Management Device Type .. 128 176 Management Device Address Type .. 129 177 Management Device Component (Type 35) .. 129 178 Management Device Threshold Data (Type 36) .. 130 179 Memory Channel (Type 37) .. 130 180 Memory Channel Channel Type .. 131 181 IPMI Device Information (Type 38) .. 131 182 IPMI Device Information BMC Interface Type .. 133 183 System Power Supply (Type 39) .. 133 184 Power supply characteristics .. 135 185 Additional Information (Type 40) .. 135 186 Additional Information Entry format .. 136 187 Onboard Devices Extended Information (Type 41) .. 137 188 Reference Designation.