Summery
システム情報の表示Construction
$ dmidecode [option]
Option
-d, --dev-mem FILE Read memory from device FILE (default: /dev/mem)
-h, --help Display this help text and exit
-q, --quiet Less verbose output
-s, --string KEYWORD Only display the value of the given DMI string
-t, --type TYPE Only display the entries of given type
-u, --dump Do not decode the entries
--dump-bin FILE Dump the DMI data to a binary file
--from-dump FILE Read the DMI data from a binary file
-V, --version Display the version and exit</code>
<h2>Sample</h2>
<code class="lang:sh decode:true " >$ dmidecode
# dmidecode 2.12
SMBIOS 2.8 present.
82 structures occupying 3033 bytes.
Table at 0x000EC1F0.
Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: American Megatrends Inc.
Version: 0325
Release Date: 05/04/2014
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 8192 kB
Characteristics:
PCI is supported
APM is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
BIOS ROM is socketed
EDD is supported
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 4.6
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: ASUS
Product Name: All Series
Version: System Version
Serial Number: System Serial Number
UUID: 1E1908C0-D7DA-11DD-B1FB-10C37B94CE04
Wake-up Type: Power Switch
SKU Number: All
Family: ASUS MB
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: Z97M-PLUS
Version: Rev X.0x
Serial Number: 140525895000160
Asset Tag: To be filled by O.E.M.
Features:
Board is a hosting board
Board is replaceable
Location In Chassis: To be filled by O.E.M.
Chassis Handle: 0x0003
Type: Motherboard
Contained Object Handles: 0
Handle 0x0003, DMI type 3, 25 bytes
Chassis Information
Manufacturer: To Be Filled By O.E.M.
Type: Desktop
Lock: Not Present
Version: To Be Filled By O.E.M.
Serial Number: To Be Filled By O.E.M.
Asset Tag: To Be Filled By O.E.M.
Boot-up State: Safe
Power Supply State: Safe
Thermal State: Safe
Security Status: None
OEM Information: 0x00000000
Height: Unspecified
Number Of Power Cords: 1
Contained Elements: 1
<out OF SPEC> (0)
SKU Number: To be filled by O.E.M.
Handle 0x0004, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: PS/2
Internal Connector Type: None
External Reference Designator: PS/2
External Connector Type: PS/2
Port Type: Other
Handle 0x0005, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: VGA
Internal Connector Type: None
External Reference Designator: VGA port
External Connector Type: Other
Port Type: Other
Handle 0x0006, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB7_8
Internal Connector Type: None
External Reference Designator: USB7_8
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0007, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB3_56
Internal Connector Type: None
External Reference Designator: USB3_56
External Connector Type: Access Bus (USB)
Port Type: USB
Handle 0x0008, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: GbE LAN
Internal Connector Type: None
External Reference Designator: GbE LAN
External Connector Type: RJ-45
Port Type: Network Port
Handle 0x0009, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: AUDIO
Internal Connector Type: None
External Reference Designator: AUDIO
External Connector Type: Other
Port Type: Audio Port
Handle 0x000A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: DVI
Internal Connector Type: None
External Reference Designator: DVI port
External Connector Type: Other
Port Type: Other
Handle 0x000B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: HDMI
Internal Connector Type: None
External Reference Designator: HDMI port
External Connector Type: Other
Port Type: Other
Handle 0x000C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: SPDIF_OUT
Internal Connector Type: None
External Reference Designator: SPDIF_OUT
External Connector Type: On Board Sound Input From CD-ROM
Port Type: Audio Port
Handle 0x000D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: SATA6G_1
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA
Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: SATA6G_2
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA
Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: SATA6G_3
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA
Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: SATA6G_4
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA
Handle 0x0011, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: SATA6G_5
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA
Handle 0x0012, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: SATA6G_6
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA
Handle 0x0013, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB3_12
Internal Connector Type: Access Bus (USB)
External Reference Designator: Not Specified
External Connector Type: None
Port Type: USB
Handle 0x0014, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB3_34
Internal Connector Type: Access Bus (USB)
External Reference Designator: Not Specified
External Connector Type: None
Port Type: USB
Handle 0x0015, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB9_10
Internal Connector Type: Access Bus (USB)
External Reference Designator: Not Specified
External Connector Type: None
Port Type: USB
Handle 0x0016, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB11_12
Internal Connector Type: Access Bus (USB)
External Reference Designator: Not Specified
External Connector Type: None
Port Type: USB
Handle 0x0017, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB13_14
Internal Connector Type: Access Bus (USB)
External Reference Designator: Not Specified
External Connector Type: None
Port Type: USB
Handle 0x0018, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: AAFP
Internal Connector Type: Mini Jack (headphones)
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Audio Port
Handle 0x0019, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: CPU_FAN
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: CHA_FAN1
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: CHA_FAN2
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: COM
Internal Connector Type: DB-9 male
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Serial Port 16550A Compatible
Handle 0x001D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: LPT
Internal Connector Type: DB-9 male
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Serial Port 16550A Compatible
Handle 0x001E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: TPM
Internal Connector Type: Other
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other
Handle 0x001F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: M.2
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA
Handle 0x0020, DMI type 9, 17 bytes
System Slot Information
Designation: PCIEX16_1
Type: x16 PCI Express
Current Usage: Available
Length: Long
ID: 1
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:01:00.0
Handle 0x0021, DMI type 9, 17 bytes
System Slot Information
Designation: PCIEX16_2
Type: x16 PCI Express
Current Usage: Available
Length: Long
ID: 2
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:ff:00.0
Handle 0x0022, DMI type 9, 17 bytes
System Slot Information
Designation: PCI1
Type: 32-bit PCI
Current Usage: Available
Length: Short
ID: 3
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:04:1c.7
Handle 0x0023, DMI type 9, 17 bytes
System Slot Information
Designation: PCI2
Type: 32-bit PCI
Current Usage: Available
Length: Short
ID: 4
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:04:1d.0
Handle 0x0024, DMI type 10, 8 bytes
On Board Device 1 Information
Type: Video
Status: Enabled
Description: To Be Filled By O.E.M.
On Board Device 2 Information
Type: Ethernet
Status: Enabled
Description: To Be Filled By O.E.M.
Handle 0x0025, DMI type 11, 5 bytes
OEM Strings
String 1: To Be Filled By O.E.M.
String 2: To Be Filled By O.E.M.
String 3: Silver
String 4: To Be Filled By O.E.M.
Handle 0x0026, DMI type 12, 5 bytes
System Configuration Options
Option 1: To Be Filled By O.E.M.
Handle 0x0027, DMI type 24, 5 bytes
Hardware Security
Power-On Password Status: Disabled
Keyboard Password Status: Disabled
Administrator Password Status: Disabled
Front Panel Reset Status: Disabled
Handle 0x0028, DMI type 32, 20 bytes
System Boot Information
Status: No errors detected
Handle 0x0029, DMI type 34, 11 bytes
Management Device
Description: Nuvoton NCT5538D
Type: Other
Address: 0x00000295
Address Type: I/O Port
Handle 0x002A, DMI type 26, 22 bytes
Voltage Probe
Description: LM78A
Location: </out><out OF SPEC>
Status: </out><out OF SPEC>
Maximum Value: Unknown
Minimum Value: Unknown
Resolution: Unknown
Tolerance: Unknown
Accuracy: Unknown
OEM-specific Information: 0x00000000
Nominal Value: Unknown
Handle 0x002B, DMI type 36, 16 bytes
Management Device Threshold Data
Lower Non-critical Threshold: 1
Upper Non-critical Threshold: 2
Lower Critical Threshold: 3
Upper Critical Threshold: 4
Lower Non-recoverable Threshold: 5
Upper Non-recoverable Threshold: 6
Handle 0x002C, DMI type 35, 11 bytes
Management Device Component
Description: To Be Filled By O.E.M.
Management Device Handle: 0x0029
Component Handle: 0x0029
Threshold Handle: 0x002A
Handle 0x002D, DMI type 28, 22 bytes
Temperature Probe
Description: LM78A
Location: </out><out OF SPEC>
Status: </out><out OF SPEC>
Maximum Value: Unknown
Minimum Value: Unknown
Resolution: Unknown
Tolerance: Unknown
Accuracy: Unknown
OEM-specific Information: 0x00000000
Nominal Value: Unknown
Handle 0x002E, DMI type 36, 16 bytes
Management Device Threshold Data
Lower Non-critical Threshold: 1
Upper Non-critical Threshold: 2
Lower Critical Threshold: 3
Upper Critical Threshold: 4
Lower Non-recoverable Threshold: 5
Upper Non-recoverable Threshold: 6
Handle 0x002F, DMI type 35, 11 bytes
Management Device Component
Description: To Be Filled By O.E.M.
Management Device Handle: 0x0029
Component Handle: 0x002C
Threshold Handle: 0x002D
Handle 0x0030, DMI type 27, 15 bytes
Cooling Device
Temperature Probe Handle: 0x002D
Type: </out><out OF SPEC>
Status: </out><out OF SPEC>
Cooling Unit Group: 1
OEM-specific Information: 0x00000000
Nominal Speed: Unknown Or Non-rotating
Description: Cooling Dev 1
Handle 0x0031, DMI type 36, 16 bytes
Management Device Threshold Data
Lower Non-critical Threshold: 1
Upper Non-critical Threshold: 2
Lower Critical Threshold: 3
Upper Critical Threshold: 4
Lower Non-recoverable Threshold: 5
Upper Non-recoverable Threshold: 6
Handle 0x0032, DMI type 35, 11 bytes
Management Device Component
Description: To Be Filled By O.E.M.
Management Device Handle: 0x0029
Component Handle: 0x002F
Threshold Handle: 0x0030
Handle 0x0033, DMI type 27, 15 bytes
Cooling Device
Temperature Probe Handle: 0x002D
Type: </out><out OF SPEC>
Status: </out><out OF SPEC>
Cooling Unit Group: 1
OEM-specific Information: 0x00000000
Nominal Speed: Unknown Or Non-rotating
Description: Not Specified
Handle 0x0034, DMI type 36, 16 bytes
Management Device Threshold Data
Lower Non-critical Threshold: 1
Upper Non-critical Threshold: 2
Lower Critical Threshold: 3
Upper Critical Threshold: 4
Lower Non-recoverable Threshold: 5
Upper Non-recoverable Threshold: 6
Handle 0x0035, DMI type 35, 11 bytes
Management Device Component
Description: To Be Filled By O.E.M.
Management Device Handle: 0x0029
Component Handle: 0x0032
Threshold Handle: 0x0033
Handle 0x0036, DMI type 29, 22 bytes
Electrical Current Probe
Description: ABC
Location: </out><out OF SPEC>
Status: </out><out OF SPEC>
Maximum Value: Unknown
Minimum Value: Unknown
Resolution: Unknown
Tolerance: Unknown
Accuracy: Unknown
OEM-specific Information: 0x00000000
Nominal Value: Unknown
Handle 0x0037, DMI type 36, 16 bytes
Management Device Threshold Data
Handle 0x0038, DMI type 35, 11 bytes
Management Device Component
Description: To Be Filled By O.E.M.
Management Device Handle: 0x0029
Component Handle: 0x0035
Threshold Handle: 0x0033
Handle 0x0039, DMI type 26, 22 bytes
Voltage Probe
Description: LM78A
Location: Power Unit
Status: OK
Maximum Value: Unknown
Minimum Value: Unknown
Resolution: Unknown
Tolerance: Unknown
Accuracy: Unknown
OEM-specific Information: 0x00000000
Nominal Value: Unknown
Handle 0x003A, DMI type 28, 22 bytes
Temperature Probe
Description: LM78A
Location: Power Unit
Status: OK
Maximum Value: Unknown
Minimum Value: Unknown
Resolution: Unknown
Tolerance: Unknown
Accuracy: Unknown
OEM-specific Information: 0x00000000
Nominal Value: Unknown
Handle 0x003B, DMI type 27, 15 bytes
Cooling Device
Temperature Probe Handle: 0x003A
Type: Power Supply Fan
Status: OK
Cooling Unit Group: 1
OEM-specific Information: 0x00000000
Nominal Speed: Unknown Or Non-rotating
Description: Cooling Dev 1
Handle 0x003C, DMI type 29, 22 bytes
Electrical Current Probe
Description: ABC
Location: Power Unit
Status: OK
Maximum Value: Unknown
Minimum Value: Unknown
Resolution: Unknown
Tolerance: Unknown
Accuracy: Unknown
OEM-specific Information: 0x00000000
Nominal Value: Unknown
Handle 0x003D, DMI type 39, 22 bytes
System Power Supply
Power Unit Group: 1
Location: To Be Filled By O.E.M.
Name: To Be Filled By O.E.M.
Manufacturer: To Be Filled By O.E.M.
Serial Number: To Be Filled By O.E.M.
Asset Tag: To Be Filled By O.E.M.
Model Part Number: To Be Filled By O.E.M.
Revision: To Be Filled By O.E.M.
Max Power Capacity: Unknown
Status: Present, OK
Type: Switching
Input Voltage Range Switching: Auto-switch
Plugged: Yes
Hot Replaceable: No
Input Voltage Probe Handle: 0x0039
Cooling Device Handle: 0x003B
Input Current Probe Handle: 0x003C
Handle 0x003E, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard IGD
Type: Video
Status: Enabled
Type Instance: 1
Bus Address: 0000:00:02.0
Handle 0x003F, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard LAN
Type: Ethernet
Status: Enabled
Type Instance: 1
Bus Address: 0000:00:19.0
Handle 0x0040, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard 1394
Type: Other
Status: Enabled
Type Instance: 1
Bus Address: 0000:03:1c.2
Handle 0x0041, DMI type 139, 54 bytes
OEM-specific Type
Header and Data:
8B 36 41 00 FE DC BA 98 76 54 32 10 04 04 32 55
F8 00 A2 02 A1 00 40 63 06 11 44 30 03 DF 40 B2
00 20 00 73 3C 10 08 00 00 00 00 00 00 00 00 00
00 00 00 00 00 01
Strings:
V1394GUID
Handle 0x0042, DMI type 4, 42 bytes
Processor Information
Socket Designation: SOCKET 1150
Type: Central Processor
Family: Other
Manufacturer: Intel
ID: C3 06 03 00 FF FB EB BF
Version: Intel(R) Core(TM) i3-4130T CPU @ 2.90GHz
Voltage: 1.2 V
External Clock: 100 MHz
Max Speed: 3900 MHz
Current Speed: 2900 MHz
Status: Populated, Enabled
Upgrade: Socket BGA1155
L1 Cache Handle: 0x0043
L2 Cache Handle: 0x0044
L3 Cache Handle: 0x0045
Serial Number: Not Specified
Asset Tag: Fill By OEM
Part Number: Fill By OEM
Core Count: 2
Core Enabled: 2
Thread Count: 4
Characteristics:
64-bit capable
Handle 0x0043, DMI type 7, 19 bytes
Cache Information
Socket Designation: CPU Internal L1
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 128 kB
Maximum Size: 128 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Parity
System Type: Other
Associativity: 8-way Set-associative
Handle 0x0044, DMI type 7, 19 bytes
Cache Information
Socket Designation: CPU Internal L2
Configuration: Enabled, Not Socketed, Level 2
Operational Mode: Write Back
Location: Internal
Installed Size: 512 kB
Maximum Size: 512 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Unified
Associativity: 8-way Set-associative
Handle 0x0045, DMI type 7, 19 bytes
Cache Information
Socket Designation: CPU Internal L3
Configuration: Enabled, Not Socketed, Level 3
Operational Mode: Write Back
Location: Internal
Installed Size: 3072 kB
Maximum Size: 3072 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Multi-bit ECC
System Type: Unified
Associativity: 12-way Set-associative
Handle 0x0047, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 32 GB
Error Information Handle: Not Provided
Number Of Devices: 4
Handle 0x0048, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0047
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: DIMM
Set: None
Locator: DIMM_A1
Bank Locator: BANK 0
Type: DDR3
Type Detail: Synchronous
Speed: 1600 MHz
Manufacturer: 1311
Serial Number: 55112C4F
Asset Tag: 9876543210
Part Number: M2X4G64CB88CHN-DG
Rank: 1
Configured Clock Speed: 1600 MHz
Minimum voltage: 1.500 V
Maximum voltage: 1.500 V
Configured voltage: 1.500 V
Handle 0x0049, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0047
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM_A2
Bank Locator: BANK 1
Type: Unknown
Type Detail: None
Speed: Unknown
Manufacturer: [Empty]
Serial Number: [Empty]
Asset Tag: Not Specified
Part Number: [Empty]
Rank: Unknown
Configured Clock Speed: Unknown
Minimum voltage: Unknown
Maximum voltage: Unknown
Configured voltage: Unknown
Handle 0x004A, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0047
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 4096 MB
Form Factor: DIMM
Set: None
Locator: DIMM_B1
Bank Locator: BANK 2
Type: DDR3
Type Detail: Synchronous
Speed: 1600 MHz
Manufacturer: 1311
Serial Number: C0732B4E
Asset Tag: 9876543210
Part Number: M2X4G64CB88CHN-DG
Rank: 1
Configured Clock Speed: 1600 MHz
Minimum voltage: 1.500 V
Maximum voltage: 1.500 V
Configured voltage: 1.500 V
Handle 0x004B, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0047
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM_B2
Bank Locator: BANK 3
Type: Unknown
Type Detail: None
Speed: Unknown
Manufacturer: [Empty]
Serial Number: [Empty]
Asset Tag: Not Specified
Part Number: [Empty]
Rank: Unknown
Configured Clock Speed: Unknown
Minimum voltage: Unknown
Maximum voltage: Unknown
Configured voltage: Unknown
Handle 0x004C, DMI type 19, 31 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x001FFFFFFFF
Range Size: 8 GB
Physical Array Handle: 0x0047
Partition Width: 4
Handle 0x004D, DMI type 20, 35 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x000FFFFFFFF
Range Size: 4 GB
Physical Device Handle: 0x004B
Memory Array Mapped Address Handle: 0x004C
Partition Row Position: Unknown
Interleave Position: 1
Interleaved Data Depth: 2
Handle 0x004E, DMI type 20, 35 bytes
Memory Device Mapped Address
Starting Address: 0x00100000000
Ending Address: 0x001FFFFFFFF
Range Size: 4 GB
Physical Device Handle: 0x004B
Memory Array Mapped Address Handle: 0x004C
Partition Row Position: Unknown
Interleave Position: 2
Interleaved Data Depth: 2
Handle 0x004F, DMI type 136, 6 bytes
OEM-specific Type
Header and Data:
88 06 4F 00 00 00
Handle 0x0050, DMI type 13, 22 bytes
BIOS Language Information
Language Description Format: Long
Installable Languages: 3
en|US|iso8859-1
fr|FR|iso8859-1
zh|CN|unicode
Currently Installed Language: en|US|iso8859-1
Handle 0x0052, DMI type 131, 64 bytes
OEM-specific Type
Header and Data:
83 40 52 00 10 00 00 00 00 00 00 00 00 00 00 00
F8 00 00 00 00 00 00 00 01 00 00 00 01 00 09 00
E8 03 01 00 00 00 00 00 C8 00 00 00 00 00 00 00
00 00 00 00 26 00 00 00 76 50 72 6F 00 00 00 00
Handle 0x0053, DMI type 127, 4 bytes
End Of Table
Discription
NAME
dmidecode - DMI table decoder
SYNOPSIS
dmidecode [OPTIONS]
DESCRIPTION
dmidecode is a tool for dumping a computer's DMI (some say SMBIOS) table contents in a
human-readable format. This table contains a description of the system's hardware components,
as well as other useful pieces of information such as serial numbers and BIOS revision. Thanks
to this table, you can retrieve this information without having to probe for the actual hard‐
ware. While this is a good point in terms of report speed and safeness, this also makes the
presented information possibly unreliable.
The DMI table doesn't only describe what the system is currently made of, it also can report
the possible evolutions (such as the fastest supported CPU or the maximal amount of memory
supported).
SMBIOS stands for System Management BIOS, while DMI stands for Desktop Management Interface.
Both standards are tightly related and developed by the DMTF (Desktop Management Task Force).
As you run it, dmidecode will try to locate the DMI table. If it succeeds, it will then parse
this table and display a list of records like this one:
Handle 0x0002, DMI type 2, 8 bytes. Base Board Information
Manufacturer: Intel
Product Name: C440GX+
Version: 727281-001
Serial Number: INCY92700942
Each record has:
· A handle. This is a unique identifier, which allows records to reference each other. For
example, processor records usually reference cache memory records using their handles.
· A type. The SMBIOS specification defines different types of elements a computer can be made
of. In this example, the type is 2, which means that the record contains "Base Board Infor‐
mation".
· A size. Each record has a 4-byte header (2 for the handle, 1 for the type, 1 for the size),
the rest is used by the record data. This value doesn't take text strings into account
(these are placed at the end of the record), so the actual length of the record may be (and
is often) greater than the displayed value.
· Decoded values. The information presented of course depends on the type of record. Here, we
learn about the board's manufacturer, model, version and serial number.
OPTIONS
-d, --dev-mem FILE
Read memory from device FILE (default: /dev/mem)
-q, --quiet
Be less verbose. Unknown, inactive and OEM-specific entries are not displayed.
Meta-data and handle references are hidden.
-s, --string KEYWORD
Only display the value of the DMI string identified by KEYWORD. KEYWORD must be a key‐
word from the following list: bios-vendor, bios-version, bios-release-date, system-man‐
ufacturer, system-product-name, system-version, system-serial-number, system-uuid,
baseboard-manufacturer, baseboard-product-name, baseboard-version, base‐
board-serial-number, baseboard-asset-tag, chassis-manufacturer, chassis-type, chas‐
sis-version, chassis-serial-number, chassis-asset-tag, processor-family, processor-man‐
ufacturer, processor-version, processor-frequency. Each keyword corresponds to a given
DMI type and a given offset within this entry type. Not all strings may be meaningful
or even defined on all systems. Some keywords may return more than one result on some
systems (e.g. processor-version on a multi-processor system). If KEYWORD is not pro‐
vided or not valid, a list of all valid keywords is printed and dmidecode exits with an
error. This option cannot be used more than once.
-t, --type TYPE
Only display the entries of type TYPE. TYPE can be either a DMI type number, or a
comma-separated list of type numbers, or a keyword from the following list: bios, sys‐
tem, baseboard, chassis, processor, memory, cache, connector, slot. Refer to the DMI
TYPES section below for details. If this option is used more than once, the set of
displayed entries will be the union of all the given types. If TYPE is not provided or
not valid, a list of all valid keywords is printed and dmidecode exits with an error.
-u, --dump
Do not decode the entries, dump their contents as hexadecimal instead. Note that this
is still a text output, no binary data will be thrown upon you. The strings attached to
each entry are displayed as both hexadecimal and ASCII. This option is mainly useful
for debugging.
--dump-bin FILE
Do not decode the entries, instead dump the DMI data to a file in binary form. The gen‐
erated file is suitable to pass to --from-dump later.
--from-dump FILE
Read the DMI data from a binary file previously generated using --dump-bin.
-h, --help
Display usage information and exit
-V, --version
Display the version and exit
Options --string, --type and --dump-bin determine the output format and are mutually exclu‐
sive.
Please note in case of dmidecode is run on a system with BIOS that boasts new SMBIOS specifi‐
cation, which is not supported by the tool yet, it will print out relevant message in addition
to requested data on the very top of the output. Thus informs the output data is not reliable.
DMI TYPES
The SMBIOS specification defines the following DMI types:
Type Information
────────────────────────────────────────────
0 BIOS
1 System
2 Baseboard
3 Chassis
4 Processor
5 Memory Controller
6 Memory Module
7 Cache
8 Port Connector
9 System Slots
10 On Board Devices
11 OEM Strings
12 System Configuration Options
13 BIOS Language
14 Group Associations
15 System Event Log
16 Physical Memory Array
17 Memory Device
18 32-bit Memory Error
19 Memory Array Mapped Address
20 Memory Device Mapped Address
21 Built-in Pointing Device
22 Portable Battery
23 System Reset
24 Hardware Security
25 System Power Controls
26 Voltage Probe
27 Cooling Device
28 Temperature Probe
29 Electrical Current Probe
30 Out-of-band Remote Access
31 Boot Integrity Services
32 System Boot
33 64-bit Memory Error
34 Management Device
35 Management Device Component
36 Management Device Threshold Data
37 Memory Channel
38 IPMI Device
39 Power Supply
40 Additional Information
41 Onboard Devices Extended Information
42 Management Controller Host Interface
Additionally, type 126 is used for disabled entries and type 127 is an end-of-table marker.
Types 128 to 255 are for OEM-specific data. dmidecode will display these entries by default,
but it can only decode them when the vendors have contributed documentation or code for them.
Keywords can be used instead of type numbers with --type. Each keyword is equivalent to a
list of type numbers:
Keyword Types
──────────────────────────────
bios 0, 13
system 1, 12, 15, 23, 32
baseboard 2, 10, 41
chassis 3
processor 4
memory 5, 6, 16, 17
cache 7
connector 8
slot 9
Keywords are matched case-insensitively. The following command lines are equivalent:
· dmidecode --type 0 --type 13
· dmidecode --type 0,13
· dmidecode --type bios
· dmidecode --type BIOS
BINARY DUMP FILE FORMAT
The binary dump files generated by --dump-bin and read using --from-dump are formatted as fol‐
lows:
· The SMBIOS or DMI entry point is located at offset 0x00. It is crafted to hard-code the ta‐
ble address at offset 0x20.
· The DMI table is located at offset 0x20.
FILES
/dev/mem
BUGS
More often than not, information contained in the DMI tables is inaccurate, incomplete or sim‐
ply wrong.
AUTHORS
Alan Cox, Jean Delvare
SEE ALSO
biosdecode(8), mem(4), ownership(8), vpddecode(8)
dmidecode March 2012 DMIDECODE(8)
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