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使用dmidecode检查常见的硬件信息

检查CPU

sudo dmidecode -t4
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 2.6 present.

Handle 0x0001, DMI type 4, 42 bytes
Processor Information
        Socket Designation: CPU
        Type: Central Processor
        Family: Core i5
        Manufacturer: Intel(R) Corporation
        ID: A7 06 02 00 FF FB EB BF
        Signature: Type 0, Family 6, Model 42, Stepping 7
        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) i5-2540M CPU @ 2.60GHz
        Voltage: 1.2 V
        External Clock: 100 MHz
        Max Speed: 2600 MHz
        Current Speed: 2600 MHz
        Status: Populated, Enabled
        Upgrade: ZIF Socket
        L1 Cache Handle: 0x0002
        L2 Cache Handle: 0x0003
        L3 Cache Handle: 0x0004
        Serial Number: Not Supported by CPU
        Asset Tag: None
        Part Number: None
        Core Count: 2
        Core Enabled: 2
        Thread Count: 4
        Characteristics:
                64-bit capable

检查内存

sudo dmidecode -t17
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 2.6 present.

Handle 0x0006, DMI type 17, 28 bytes
Memory Device
        Array Handle: 0x0005
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 2048 MB
        Form Factor: SODIMM
        Set: None
        Locator: ChannelA-DIMM0
        Bank Locator: BANK 0
        Type: DDR3
        Type Detail: Synchronous
        Speed: 1333 MT/s
        Manufacturer: Hynix/Hyundai
        Serial Number: 3152AA49
        Asset Tag: 9876543210
        Part Number: HMT325S6BFR8C-H9  
        Rank: Unknown

Handle 0x0007, DMI type 17, 28 bytes
Memory Device
        Array Handle: 0x0005
        Error Information Handle: Not Provided
        Total Width: 64 bits
        Data Width: 64 bits
        Size: 2048 MB
        Form Factor: SODIMM
        Set: None
        Locator: ChannelB-DIMM0
        Bank Locator: BANK 2
        Type: DDR3
        Type Detail: Synchronous
        Speed: 1333 MT/s
        Manufacturer: Hynix/Hyundai
        Serial Number: 0C41233F
        Asset Tag: 9876543210
        Part Number: HMT325S6BFR8C-H9  
        Rank: Unknown

查看主板

sudo dmidecode -t2
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 2.6 present.

Handle 0x0011, DMI type 2, 15 bytes
Base Board Information
        Manufacturer: LENOVO
        Product Name: 4242NP5
        Version: Not Available
        Serial Number: 1ZK601BN1BU
        Asset Tag: Not Available
        Features:
                Board is a hosting board
                Board is replaceable
        Location In Chassis: Not Available
        Chassis Handle: 0x0000
        Type: Motherboard
        Contained Object Handles: 0

查看板载设备(比如板载显卡/声卡)

sudo dmidecode -t10
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 2.6 present.

Handle 0x002B, DMI type 10, 6 bytes
On Board Device Information
        Type: Other
        Status: Enabled
        Description: IBM Embedded Security hardware