Dmidecode reports information about your system’s hardware as described in your system BIOS according to the SMBIOS/DMI standard (see a sample output). This information typically includes system manufacturer, model name, serial number, BIOS version, asset tag as well as a lot of other details of varying level of interest and reliability depending on the manufacturer. This will often include usage status for the CPU sockets, expansion slots (e.g. AGP, PCI, ISA) and memory module slots, and the list of I/O ports (e.g. serial, parallel, USB).
The command example below show the use of dmidecode command to display motherboard information or baseboard information.
[root@lifelinux ~]# dmidecode --type baseboard
# dmidecode 2.10 SMBIOS 2.6 present. Handle 0x0002, DMI type 2, 15 bytes Base Board Information Manufacturer: Supermicro Product Name: X8SIE Version: 0123456789 Serial Number: 0123456789 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 0x0047, DMI type 41, 11 bytes Onboard Device Reference Designation: To Be Filled By O.E.M. Type: Video Status: Enabled Type Instance: 0 Handle 0x0048, DMI type 41, 11 bytes Onboard Device Reference Designation: To Be Filled By O.E.M. Type: SCSI Controller Status: Disabled Type Instance: 0
Get more infomation using dmidecode command. Type the following command:
[root@lifelinux ~]# dmidecode --type
dmidecode: option `--type' requires an argument Type number or keyword expected Valid type keywords are: bios system baseboard chassis processor memory cache connector slot
Example, get processor information. Type the following command:
[root@lifelinux ~]# dmidecode --type processor
# dmidecode 2.10 SMBIOS 2.6 present. Handle 0x0004, DMI type 4, 42 bytes Processor Information Socket Designation: CPU Type: Central Processor Family: Xeon Manufacturer: Intel ID: E5 06 01 00 FF FB EB BF Signature: Type 0, Family 6, Model 30, Stepping 5 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 (Fast floating-point save and restore) SSE (Streaming SIMD extensions) SSE2 (Streaming SIMD extensions 2) SS (Self-snoop) HTT (Hyper-threading technology) TM (Thermal monitor supported) PBE (Pending break enabled) Version: Intel(R) Xeon(R) CPU X3440 @ 2.53GHz Voltage: Unknown External Clock: 133 MHz Max Speed: 2533 MHz Current Speed: 2533 MHz Status: Populated, Enabled Upgrade: Other L1 Cache Handle: 0x0005 L2 Cache Handle: 0x0006 L3 Cache Handle: 0x0007 Serial Number: To Be Filled By O.E.M. Asset Tag: To Be Filled By O.E.M. Part Number: To Be Filled By O.E.M. Core Count: 4 Core Enabled: 4 Thread Count: 8 Characteristics: 64-bit capable
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