- Overview
- Common Switches to use with dmidecode
- Example Results from a VM
- Example Results from Physical Machine
dmidecode is a linux command, found commonly on any Red Hat variant of Linux, and possibly
on others too.
Execute man dmidecode in order to learn more about this tool.
ALWAYS execute dmidecode as the Root User.
-s or --string : is for string matching KEYWORD as dmidecode refers to it, and
Only display the value of the DMI string identified by KEYWORD.
KEYWORD must be a keyword from the following list: bios-vendor, bios-version, bios-release-date, system-manufacturer, system-product-name, system-version, system-serial-number, system-uuid, baseboard-manufacturer, baseboard-product-name, baseboard-version, baseboard-serial-number, baseboard-asset-tag, chassis-manufacturer, chassis-type, chassis-version, chassis-serial-number, chassis-asset-tag, processor-family, processor-manufacturer, 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 provided 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 : is for the TYPE matching as defined by the dmidecode command.
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: (0)bios, (1)system, (2)baseboard, (3)chassis, (4)processor, (5)memory, (6)cache, (7)connector, (8)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.
With these two (2) switch options you can learn a lot of detail about systems.
dmidecode -s bios-vendor
Phoenix Technologies LTD
dmidecode -s bios-version
6.00
dmidecode -s bios-release-date
04/14/2014
dmidecode -s system-manufacturer
VMware, Inc.
dmidecode -s system-product-name
VMware Virtual Platform
dmidecode -s system-serial-number
VMware-42 3c 77 ea 6a c3 3f d4-62 2c 2c 01 3b 55 bc 8e
dmidecode -s system-uuid
423C77EA-6AC3-3FD4-622C-2C013B55BC8E
dmidecode -s chassis-type
Other
dmidecode -s baseboard-version
None
dmidecode -s processor-family
Unknown Unknown ....... Unknown
dmidecode -s processor-manufacturer
GenuineIntel 000000000000 000000000000 000000000000 000000000000 000000000000 ............ 000000000000
dmidecode -s processor-version
Intel(R) Xeon(R) CPU E7- 4830 @ 2.13GHz Unknown Processor Unknown Processor Unknown Processor ................. Unknown Processor
dmidecode -s processor-frequency
2133 MHz Unknown Unknown ....... Unknown
dmidecode -t 0
SMBIOS 2.4 present.
Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: Phoenix Technologies LTD Version: 6.00 Release Date: 04/14/2014 Address: 0xEA050 Runtime Size: 90032 bytes ROM Size: 64 kB Characteristics: ISA is supported PCI is supported PC Card (PCMCIA) is supported PNP is supported APM is supported BIOS is upgradeable BIOS shadowing is allowed ESCD support is available Boot from CD is supported Selectable boot is supported EDD is supported 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) CGA/mono video services are supported (int 10h) ACPI is supported Smart battery is supported BIOS boot specification is supported Function key-initiated network boot is supported Targeted content distribution is supported BIOS Revision: 4.6 Firmware Revision: 0.0
dmidecode -t 1
SMBIOS 2.4 present.
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: VMware, Inc. Product Name: VMware Virtual Platform Version: None Serial Number: VMware-42 3c 77 ea 6a c3 3f d4-62 2c 2c 01 3b 55 bc 8e UUID: 423C77EA-6AC3-3FD4-622C-2C013B55BC8E Wake-up Type: Power Switch SKU Number: Not Specified Family: Not Specified
dmidecode -t 2
SMBIOS 2.4 present.
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
Manufacturer: Intel Corporation Product Name: 440BX Desktop Reference Platform Version: None Serial Number: None Asset Tag: Not Specified Features: None Location In Chassis: Not Specified Chassis Handle: 0x0000 Type: Unknown Contained Object Handles: 0
dmidecode -t 4
SMBIOS 2.4 present.
Handle 0x0004, DMI type 4, 35 bytes
Processor Information
Socket Designation: CPU socket #0 Type: Central Processor Family: Unknown Manufacturer: GenuineIntel ID: 51 06 02 00 FF FB AB 0F Version: Intel(R) Xeon(R) CPU E7- 4830 @ 2.13GHz Voltage: 3.3 V External Clock: Unknown Max Speed: 30000 MHz Current Speed: 2133 MHz Status: Populated, Enabled Upgrade: ZIF Socket L1 Cache Handle: 0x0054 L2 Cache Handle: 0x0055 L3 Cache Handle: Not Provided Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not SpecifiedHandle 0x0005, DMI type 4, 35 bytes
Processor Information
Socket Designation: CPU socket #1 Type: Central Processor Family: Unknown Manufacturer: 000000000000 ID: 00 00 00 00 00 00 00 00 Version: Unknown Processor Voltage: 3.3 V External Clock: Unknown Max Speed: 30000 MHz Current Speed: Unknown Status: Unpopulated Upgrade: ZIF Socket L1 Cache Handle: 0x0056 L2 Cache Handle: 0x0057 L3 Cache Handle: Not Provided Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified
dmidecode -s bios-vendor
Dell Inc.
dmidecode -s bios-version
A15
dmidecode -s bios-release-date
02/02/2015
dmidecode -s system-manufacturer
Dell Inc.
dmidecode -s system-product-name
Precision T1700
dmidecode -s system-serial-number
HFQ5R52
dmidecode -s system-uuid
4C4C4544-0046-5110-8035-C8C04F523532
dmidecode -s processor-family
Core i7
dmidecode -s processor-manufacturer
Intel
dmidecode -s processor-version
Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
dmidecode -s processor-frequency
3600 MHz
dmidecode -t 0
SMBIOS 2.7 present.
Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: Dell Inc. Version: A15 Release Date: 02/02/2015 Address: 0xF0000 Runtime Size: 64 kB ROM Size: 12288 kB Characteristics: PCI is supported PNP is supported BIOS is upgradeable BIOS shadowing is allowed Boot from CD is supported Selectable boot is supported 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 Function key-initiated network boot is supported Targeted content distribution is supported UEFI is supported BIOS Revision: 4.6
dmidecode -t 1
SMBIOS 2.7 present.
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: Dell Inc. Product Name: Precision T1700 Version: 01 Serial Number: HFQ5R52 UUID: 4C4C4544-0046-5110-8035-C8C04F523532 Wake-up Type: Power Switch SKU Number: Precision T1700 Family: Not Specified
dmidecode -t 2
SMBIOS 2.7 present.
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
Manufacturer: Dell Inc. Product Name: 048DY8 Version: A01 Serial Number: /HFQ5R52/CN7220054F01C3/ Asset Tag: Not Specified Features: Board is a hosting board Board is replaceable Location In Chassis: Not Specified Chassis Handle: 0x0003 Type: Motherboard Contained Object Handles: 0
dmidecode -t 4
SMBIOS 2.7 present.
Handle 0x003A, DMI type 4, 42 bytes
Processor Information
Socket Designation: SOCKET 0 Type: Central Processor Family: Core i7 Manufacturer: Intel ID: C3 06 03 00 FF FB EB BF Signature: Type 0, Family 6, Model 60, Stepping 3 Flags: FPU (Floating-point unit on-chip) VME (Virtual mode extension) DE (Debugging extension) PSE (Page size extension) TSC (Time stamp counter) MSR (Model specific registers) PAE (Physical address extension) MCE (Machine check exception) CX8 (CMPXCHG8 instruction supported) APIC (On-chip APIC hardware supported) SEP (Fast system call) MTRR (Memory type range registers) PGE (Page global enable) MCA (Machine check architecture) CMOV (Conditional move instruction supported) PAT (Page attribute table) PSE-36 (36-bit page size extension) CLFSH (CLFLUSH instruction supported) DS (Debug store) ACPI (ACPI supported) MMX (MMX technology supported) FXSR (FXSAVE and FXSTOR instructions supported) SSE (Streaming SIMD extensions) SSE2 (Streaming SIMD extensions 2) SS (Self-snoop) HTT (Multi-threading) TM (Thermal monitor supported) PBE (Pending break enabled) Version: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz Voltage: 1.2 V External Clock: 100 MHz Max Speed: 3800 MHz Current Speed: 3600 MHz Status: Populated, Enabled Upgrade: Other L1 Cache Handle: 0x003B L2 Cache Handle: 0x003C L3 Cache Handle: 0x003D Serial Number: Not Specified Asset Tag: Fill By OEM Part Number: Fill By OEM Core Count: 4 Core Enabled: 4 Thread Count: 8 Characteristics: 64-bit capable