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System Management BIOS

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The SMBIOS table consists of an entry point (two types are defined, 32-bit and 64-bit), and a variable number of structures that describe platform components and features. These structures are occasionally referred to as "tables" or "records" in third-party documentation.
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command can retrieve and display the SMBIOS data. One can often enter the UEFI shell by entering the system firmware settings, and then selecting the shell as a boot option (as opposed to a DVD drive or hard drive).
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The EFI configuration table (EFI_CONFIGURATION_TABLE) contains entries pointing to the SMBIOS 2 and/or SMBIOS 3 tables. There are several ways to access the data, depending on the platform and operating system.
808:(PI) specification includes an SMBIOS protocol (EFI_SMBIOS_PROTOCOL) that allows components to submit SMBIOS structures for inclusion, and enables the producer to create the SMBIOS table for a platform. 1164: 1406: 1386: 1452: 833:
will attempt to monitor a non-existent battery and shut down the screen and network interfaces when the missing battery drops below a threshold. Additionally, if the
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utility with 'BIOS'/'MEMORYCHIP'/'BASEBOARD' and similar parameters, or by looking in the Windows Registry under HKLM\HARDWARE\DESCRIPTION\System.
253:(DMTF) took ownership of the specification. The first version published by the DMTF was 2.3.1 on March 16, 1999. At approximately the same time 999: 911: 735: 1509: 1376: 100: 268:
Version 3.0.0, introduced in February 2015, added a 64-bit entry point, which can coexist with the previously defined 32-bit entry point.
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The last version to be published directly by vendors was 2.3 on August 12, 1998. The authors were American Megatrends, Award Software,
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to probe hardware directly to discover what devices are present in the computer. The SMBIOS specification is produced by the
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If the SMBIOS data is not generated and filled correctly then the machine may behave unexpectedly. For example, a
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On Windows systems that support it (XP and later), some SMBIOS information can be viewed with either the
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Various software utilities can retrieve raw SMBIOS data, including FirmwareTablesView and
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Version 2.0 of the Desktop Management BIOS specification was released on March 6, 1996 by
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As of version 3.3.0, the SMBIOS specification defines the following structure types:
162:(and access methods) that can be used to read management information produced by the 182:. The DMTF estimates that two billion client and server systems implement SMBIOS. 204:
Version 1 of the Desktop Management BIOS (DMIBIOS) specification was produced by
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https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.3.0.pdf
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Table and structure creation is normally up to the system firmware/BIOS. The
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and BIOS vendors support the interface/data-set in order to have Microsoft
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The DMTF released the version 3.7.1 of the specification on May 24, 2024.
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can also generate SMBIOS tables for use inside VMs, for instance
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as the preferred mechanism for accessing SMBIOS information from
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is not filled in correctly then work-arounds for the incorrect
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Platform Initialization Specification, volume 5, section 6,
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may behave unexpectedly using Linux. A desktop manager like
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SMBIOS was originally known as Desktop Management BIOS (
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https://www.dmtf.org/content/dmtf-releases-smbios-32
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Available for system- and OEM- specific information
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This eliminates the need for the 1080:"Linux System Information Decoded" 898:DMTF press release on SMBIOS 3.2: 835:Chassis Information | Manufacturer 330:Baseboard (or Module) Information 180:standards development organization 14: 871:"Libsmbios Library Documentation" 666:Processor Additional Information 602:Management Device Threshold Data 251:Distributed Management Task Force 176:Distributed Management Task Force 90:Distributed Management Task Force 812:Platform virtualization software 578:64-Bit Memory Error Information 458:32-Bit Memory Error Information 189:), since it interacted with the 972:"Phoenix BIOS help and support" 851:Web-Based Enterprise Management 244:International Business Machines 105:Web-Based Enterprise Management 1: 474:Memory Device Mapped Address 410:System Configuration Options 394:On Board Devices Information 1009:. 1996-03-06. Archived from 921:. 1996-03-06. Archived from 877:. 2007-04-11. Archived from 806:UEFI Platform Initialization 594:Management Device Component 466:Memory Array Mapped Address 338:System Enclosure or Chassis 227:, Phoenix Technologies, and 191:Desktop Management Interface 1510:Computer hardware standards 1190:"SMBIOS Peek - CodeProject" 841:problem cannot be applied. 378:Port Connector Information 53:; 25 years ago 1526: 554:Out-of-Band Remote Access 418:BIOS Language Information 18: 1210:SMBIOS Support in Windows 1103:: CS1 maint: unfit URL ( 546:Electrical Current Probe 482:Built-in Pointing Device 1188:wjfrancis (2008-03-27). 1067:DMTF Releases SMBIOS 3.7 1056:DMTF Releases SMBIOS 3.6 1045:DMTF Releases SMBIOS 3.5 1034:DMTF Releases SMBIOS 3.4 714:Intel Management Engine 618:IPMI Device Information 570:System Boot Information 257:started to require that 158:) specification defines 101:Common Information Model 19:Not to be confused with 1078:Ken Hess (2010-04-23). 634:Additional Information 16:Computing specification 800:Generating SMBIOS data 514:System Power Controls 442:Physical Memory Array 346:Processor Information 229:SystemSoft Corporation 152:System Management BIOS 73:; 3 months ago 27:System Management BIOS 1282:Red Hat Issue Tracker 763:utility can be used. 721:Accessing SMBIOS data 178:(DMTF), a non-profit 1223:"FirmwareTablesView" 626:System Power Supply 206:Phoenix Technologies 426:Group Associations 322:System Information 213:American Megatrends 208:in or before 1996. 28: 1315:SMBIOS Demystified 1264:2019-04-27 at the 586:Management Device 538:Temperature Probe 506:Hardware Security 370:Cache Information 119:Systems management 1487: 1486: 1431:Related standards 1192:. Codeproject.com 1007:uni-regensburg.de 919:uni-regensburg.de 780:Microsoft Windows 718: 717: 490:Portable Battery 434:System Event Log 314:BIOS Information 144: 143: 97:Related standards 71:May 24, 2024 1517: 1345: 1338: 1331: 1322: 1311: 1310: 1308:Official website 1294: 1293: 1291: 1289: 1284:. 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907: 904: 901: 895: 892: 881:on 2016-09-18 880: 876: 872: 866: 863: 857: 852: 849: 848: 844: 842: 840: 839:Type = Tablet 836: 832: 828: 824: 819: 817: 813: 809: 807: 799: 797: 795: 790: 788: 783: 781: 777: 773: 766: 764: 762: 758: 754: 746: 744: 737: 729: 727: 720: 713: 710: 709: 705: 702: 701: 697: 694: 693: 689: 686: 685: 682:End-of-Table 681: 678: 677: 673: 670: 669: 665: 662: 661: 657: 654: 653: 649: 646: 645: 641: 638: 637: 633: 630: 629: 625: 622: 621: 617: 614: 613: 609: 606: 605: 601: 598: 597: 593: 590: 589: 585: 582: 581: 577: 574: 573: 569: 566: 565: 561: 558: 557: 553: 550: 549: 545: 542: 541: 537: 534: 533: 529: 526: 525: 521: 518: 517: 513: 510: 509: 505: 502: 501: 498:System Reset 497: 494: 493: 489: 486: 485: 481: 478: 477: 473: 470: 469: 465: 462: 461: 457: 454: 453: 449: 446: 445: 441: 438: 437: 433: 430: 429: 425: 422: 421: 417: 414: 413: 409: 406: 405: 401: 398: 397: 393: 390: 389: 386:System Slots 385: 382: 381: 377: 374: 373: 369: 366: 365: 361: 358: 357: 353: 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May 2024 932:2016-02-02 885:2016-02-02 858:References 774:specifies 740:SmbiosView 736:UEFI Shell 706:Intel AMT 698:Intel ASF 136:/standards 78:2024-05-24 1288:March 21, 772:Microsoft 761:dmidecode 747:From Unix 730:From UEFI 674:Inactive 255:Microsoft 242:, Intel, 148:computing 43:Published 1262:Archived 1099:cite web 951:dmtf.org 875:dell.com 845:See also 687:128–255 284:Contents 238:, Dell, 168:computer 107:(WBEM), 1402:Redfish 1227:NirSoft 823:Mini PC 757:FreeBSD 734:In the 215:(AMI), 200:History 193:(DMI). 187:DMIBIOS 138:/smbios 125:Website 109:Redfish 103:(CIM), 76: ( 56: ( 1443:JSR-48 1412:SMBIOS 1144:hp.com 853:(WBEM) 794:AIDA64 738:, the 236:Compaq 156:SMBIOS 150:, the 115:Domain 92:(DMTF) 40:Status 35:SMBIOS 1453:SMI-S 1407:SMASH 1397:NC-SI 1014:(PDF) 1003:(PDF) 926:(PDF) 915:(PDF) 831:GNOME 753:Linux 303:Type 225:Intel 166:of a 132:.dmtf 69:3.7.1 1505:BIOS 1438:CMPI 1417:WBEM 1387:DASH 1382:CIMI 1353:DMTF 1290:2019 1105:link 816:QEMU 787:WMIC 751:For 711:131 703:130 695:129 679:127 671:126 259:OEMs 221:Dell 164:BIOS 134:.org 58:1999 51:1999 1479:WQL 1474:OMI 1469:WMI 1448:OVF 1392:DMI 1377:CIM 1372:CDM 1367:ASF 776:WMI 663:44 655:43 647:42 639:41 631:40 623:39 615:38 607:37 599:36 591:35 583:34 575:33 567:32 559:31 551:30 543:29 535:28 527:27 519:26 511:25 503:24 495:23 487:22 479:21 471:20 463:19 455:18 447:17 439:16 431:15 423:14 415:13 407:12 399:11 391:10 146:In 130:www 21:DMI 1496:: 1280:. 1225:. 1167:. 1142:. 1101:}} 1097:{{ 1082:. 1005:. 949:. 917:. 873:. 818:. 796:. 782:. 755:, 383:9 375:8 367:7 359:6 351:5 343:4 335:3 327:2 319:1 311:0 265:. 223:, 219:, 1344:e 1337:t 1330:v 1292:. 1235:. 1199:. 1177:. 1153:. 1107:) 1093:. 1023:. 988:. 974:. 960:. 935:. 888:. 154:( 80:) 60:) 23:.

Index

DMI
Distributed Management Task Force
Common Information Model
Web-Based Enterprise Management
Redfish
Systems management
www.dmtf.org/standards/smbios
computing
data structures
BIOS
computer
operating system
Distributed Management Task Force
standards development organization
Desktop Management Interface
Phoenix Technologies
American Megatrends
Award Software
Dell
Intel
SystemSoft Corporation
Compaq
Hewlett-Packard
International Business Machines
Distributed Management Task Force
Microsoft
OEMs
certification
UEFI Shell
Linux

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