linux內存插槽

❶ linux怎麼查看內存型號

因為網站開發的需求，需要對單位的伺服器內存進行升級。那麼在linux中怎麼查看內存型號呢?下面跟著我一起來了解一下吧。

linux怎麼查看內存型號

機器主板是nVidia Corporation MCP61，系統內存支持雙通道內存技術。

配置了4個DDRII DIMM插槽，支持DDRII 800/667/533內存，最大支持8G容量。

為了嘗試下雙通道內存技術，准備加一條與原來完全一樣的內存條。

電腦配置上只寫了kingston DDRII512M。

接下來就要用工具dmidecode(DMI table decoder)確定下內存頻率了。

dmidecode命令可以全面的顯示你系統的信息，包括bios、 cpu 、內存等信息。

例如：

[root@localhost testcase]$ sudo dmidecode --help

Usage: dmidecode [OPTIONS]

Options are:

-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, --mp Do not decode the entries

-V, --version Display the version and exit

[root@localhost testcase]$ sudo dmidecode -t memory

# dmidecode 2.7

SM BIOS 2.4 present.

Handle 0x0007, DMI type 5, 24 bytes.

Memory Controller Information

Error Detecting Method: 64-bit ECC

Error Correcting Capabilities:

None

Supported Interleave: One-way Interleave

Current Interleave: One-way Interleave

Maximum Memory Mole Size: 2048 MB

Maximum Total Memory Size: 8192 MB

Supported Speeds:

70 ns

60 ns

Supported Memory Types:

DIMM

SDRAM

Memory Mole Voltage: 3.3 V

Associated Memory Slots: 4

0x0008

0x0009

0x000A

0x000B

Enabled Error Correcting Capabilities:

None

Handle 0x0008, DMI type 6, 12 bytes.

Memory Mole Information

Socket Designation: DIMM0

Bank Connections: 0 1

Current Speed: Unknown

Type: ECC DIMM

Installed Size: 512 MB (Single-bank Connection)

Enabled Size: 512 MB (Single-bank Connection)

Error Status: OK

Handle 0x0009, DMI type 6, 12 bytes.

Memory Mole Information

Socket Designation: DIMM1

Bank Connections: None

Current Speed: Unknown

Type: Unknown

Installed Size: Not Installed

Enabled Size: Not Installed

Error Status: OK

Handle 0x000A, DMI type 6, 12 bytes.

Memory Mole Information

Socket Designation: DIMM2

Bank Connections: None

Current Speed: Unknown

Type: Unknown

Installed Size: Not Installed

Enabled Size: Not Installed

Error Status: OK

Handle 0x000B, DMI type 6, 12 bytes.

Memory Mole Information

Socket Designation: DIMM3

Bank Connections: None

Current Speed: Unknown

Type: Unknown

Installed Size: Not Installed

Enabled Size: Not Installed

Error Status: OK

Handle 0x0010, DMI type 16, 15 bytes.

Physical Memory Arroot

Location: System Board Or Motherboard

Use: System Memory

Error Correction Type: None

Maximum Capacity: 8 GB

Error Information Handle: Not Provided

Number Of Devices: 4

Handle 0x0012, DMI type 17, 27 bytes.

Memory Device

Arroot Handle: 0x0010

Error Information Handle: Not Provided

Total Width: 64 bits

Data Width: 72 bits

Size: 512 MB

Form Factor: DIMM

Set: None

Locator: DIMM0

Bank Locator: BANK0

Type: DDR2

Type Detail: Synchronous

Speed: 533 MHz (1.9 ns)

Manufacturer: Manufacturer0

Serial Number: SerNum0

Asset Tag: AssetTagNum0

Part Number: PartNum0

Handle 0x0014, DMI type 17, 27 bytes.

Memory Device

Arroot Handle: 0x0010

Error Information Handle: Not Provided

Total Width: Unknown

Data Width: 64 bits

Size: No Mole Installed

Form Factor: DIMM

Set: None

Locator: DIMM1

Bank Locator: BANK1

Type: Unknown

Type Detail: Unknown

Speed: Unknown

Manufacturer: Manufacturer1

Serial Number: SerNum1

Asset Tag: AssetTagNum1

Part Number: PartNum1

Handle 0x0016, DMI type 17, 27 bytes.

Memory Device

Arroot Handle: 0x0010

Error Information Handle: Not Provided

Total Width: Unknown

Data Width: 64 bits

Size: No Mole Installed

Form Factor: DIMM

Set: None

Locator: DIMM2

Bank Locator: BANK2

Type: Unknown

Type Detail: Unknown

Speed: Unknown

Manufacturer: Manufacturer2

Serial Number: SerNum2

Asset Tag: AssetTagNum2

Part Number: PartNum2

Handle 0x0018, DMI type 17, 27 bytes.

Memory Device

Arroot Handle: 0x0010

Error Information Handle: Not Provided

Total Width: Unknown

Data Width: 64 bits

Size: No Mole Installed

Form Factor: DIMM

Set: None

Locator: DIMM3

Bank Locator: BANK3

Type: Unknown

Type Detail: Unknown

Speed: Unknown

Manufacturer: Manufacturer3

Serial Number: SerNum3

Asset Tag: AssetTagNum3

Part Number: PartNum3

總結 ：

在Memory Controller Information中，可以看到最大的內存大小是8G，支持內存種類為DIMM和SDRAM。有四個Memory Slots。對應接下來的4個Memory Mole Information。

DMI type 16 (man dmidecode裡面有DMI TYPES specification)的意思是 Physical Memory Arroot。

❷ linux如何查看內存信息

查看內存信息（顯示插槽個數和每個插槽里內存條的大小）
dmidecode -t memory | grep Size

查看內存條廠家
dmidecode -t memory | grep Manufacturer

free 查看當前內存使用情況

❸ linux中查看物理內存和配置空間的命令是什麼

linux中查看物理內存的命令是：dmidecode -t memory | grep Size。（如果沒有安裝dmidecode 需要先執行yum -y install dmidecode）

物理內存是沒辦法配置的，只能配置虛擬內存，在Linux系統即Swap分區，查看Swap分區的命令是：free -k 或者 free -m。m代表以MB為單位，k代表以KB為單位。

(3)linux內存插槽擴展閱讀

dmidecode命令介紹

使用方法:

dmidecode [OPTIONS]

參數介紹:

-d, --dev-mem FILE 從設備文件讀取內存(默認: /dev/mem)

-h, --help顯示此幫助文本並退出。

-q, --quiet 減少詳細輸出。

-t, --type TYPE 僅顯示給定類型的條目。

-V, --version 查看版本號。