【Linux-内存】找出你的系统所支持的最大内存

文章出处:https://linux.cn/article-5161-1.html
1、在基于Deb的系统中安装:
sudo apt-get install dmidecode
2、找出支持的最大内存:
sudo dmidecode -t 16
输出:

# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0005, DMI type 16, 23 bytes
Physical Memory Array
	Location: System Board Or Motherboard
	Use: System Memory
	Error Correction Type: None
	Maximum Capacity: 64 GB
	Error Information Handle: Not Provided
	Number Of Devices: 4

3、找出现在已经安装的内存的详细信息:
sudo dmidecode -t 17
输出:

# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x003C, DMI type 17, 40 bytes
Memory Device
	Array Handle: 0x0005
	Error Information Handle: Not Provided
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 4096 MB
	Form Factor: DIMM
	Set: None
	Locator: DIMM1
	Bank Locator: ChannelB
	Type: DDR4
	Type Detail: Synchronous Unbuffered (Unregistered)
	Speed: 2133 MHz
	Manufacturer: Samsung
	Serial Number: 99373AEA
	Asset Tag:  
	Part Number: M378A5143EB1-CPB    
	Rank: 1
	Configured Clock Speed: 2133 MHz
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: 1.2 V

Handle 0x0009, DMI type 17, 40 bytes
Memory Device
	Array Handle: 0x0005
	Error Information Handle: Not Provided
	Total Width: Unknown
	Data Width: Unknown
	Size: No Module Installed
	Form Factor: Other
	Set: None
	Locator: DIMM2
	Bank Locator: ChannelB
	Type: Unknown
	Type Detail: None
	Speed: Unknown
	Manufacturer: Not Specified
	Serial Number: Not Specified
	Asset Tag: Not Specified
	Part Number: Not Specified
	Rank: Unknown
	Configured Clock Speed: Unknown
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: Unknown

Handle 0x0008, DMI type 17, 40 bytes
Memory Device
	Array Handle: 0x0005
	Error Information Handle: Not Provided
	Total Width: 64 bits
	Data Width: 64 bits
	Size: 4096 MB
	Form Factor: DIMM
	Set: None
	Locator: DIMM3
	Bank Locator: ChannelA
	Type: DDR4
	Type Detail: Synchronous Unbuffered (Unregistered)
	Speed: 2133 MHz
	Manufacturer: Samsung
	Serial Number: 99373AEF
	Asset Tag:  
	Part Number: M378A5143EB1-CPB    
	Rank: 1
	Configured Clock Speed: 2133 MHz
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: 1.2 V

Handle 0x0007, DMI type 17, 40 bytes
Memory Device
	Array Handle: 0x0005
	Error Information Handle: Not Provided
	Total Width: Unknown
	Data Width: Unknown
	Size: No Module Installed
	Form Factor: Other
	Set: None
	Locator: DIMM4
	Bank Locator: ChannelA
	Type: Unknown
	Type Detail: None
	Speed: Unknown
	Manufacturer: Not Specified
	Serial Number: Not Specified
	Asset Tag: Not Specified
	Part Number: Not Specified
	Rank: Unknown
	Configured Clock Speed: Unknown
	Minimum Voltage: Unknown
	Maximum Voltage: Unknown
	Configured Voltage: Unknown

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