查看主板支持多少个内存插槽（Memory Slots）
1. 查看所有内存设备（插槽）信息
sudo dmidecode -t memory
lichang@ubuntu:~$ sudo dmidecode -t memory
[sudo] password for lichang:
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.6.0 present.
# SMBIOS implementations newer than version 3.2.0 are not
# fully supported by this version of dmidecode.
Handle 0x003A, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 128 GB
Error Information Handle: Not Provided
Number Of Devices: 4
Handle 0x003B, DMI type 17, 92 bytes
Memory Device
Array Handle: 0x003A
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: Unknown
Set: None
Locator: Controller0-DIMMA1
Bank Locator: BANK 0
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 Memory Speed: Unknown
Minimum Voltage: Unknown
Maximum Voltage: Unknown
Configured Voltage: Unknown
Memory Technology: <OUT OF SPEC>
Memory Operating Mode Capability: None
Firmware Version: Not Specified
Module Manufacturer ID: Unknown
Module Product ID: Unknown
Memory Subsystem Controller Manufacturer ID: Unknown
Memory Subsystem Controller Product ID: Unknown
Non-Volatile Size: None
Volatile Size: None
Cache Size: None
Logical Size: None
Handle 0x003C, DMI type 17, 92 bytes
Memory Device
Array Handle: 0x003A
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 16384 MB
Form Factor: DIMM
Set: None
Locator: Controller0-DIMMA2
Bank Locator: BANK 0
Type: DDR4
Type Detail: Synchronous
Speed: 3600 MT/s
Manufacturer: 0x0B92
Serial Number: 12121239
Asset Tag: 9876543210
Part Number:
Rank: 2
Configured Memory Speed: 3600 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Memory Technology: DRAM
Memory Operating Mode Capability: Volatile memory
Firmware Version: Not Specified
Module Manufacturer ID: Bank 12, Hex 0x92
Module Product ID: Unknown
Memory Subsystem Controller Manufacturer ID: Unknown
Memory Subsystem Controller Product ID: Unknown
Non-Volatile Size: None
Volatile Size: 16 GB
Cache Size: None
Logical Size: None
Handle 0x003D, DMI type 17, 92 bytes
Memory Device
Array Handle: 0x003A
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: Unknown
Set: None
Locator: Controller1-DIMMB1
Bank Locator: BANK 0
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 Memory Speed: Unknown
Minimum Voltage: Unknown
Maximum Voltage: Unknown
Configured Voltage: Unknown
Memory Technology: <OUT OF SPEC>
Memory Operating Mode Capability: Volatile memory
Firmware Version: Not Specified
Module Manufacturer ID: Unknown
Module Product ID: Unknown
Memory Subsystem Controller Manufacturer ID: Unknown
Memory Subsystem Controller Product ID: Unknown
Non-Volatile Size: None
Volatile Size: None
Cache Size: None
Logical Size: None
Handle 0x003E, DMI type 17, 92 bytes
Memory Device
Array Handle: 0x003A
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 16384 MB
Form Factor: DIMM
Set: None
Locator: Controller1-DIMMB2
Bank Locator: BANK 0
Type: DDR4
Type Detail: Synchronous
Speed: 3600 MT/s
Manufacturer: 0x0B92
Serial Number: 12121237
Asset Tag: 9876543210
Part Number:
Rank: 2
Configured Memory Speed: 3600 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Memory Technology: DRAM
Memory Operating Mode Capability: Volatile memory
Firmware Version: Not Specified
Module Manufacturer ID: Bank 12, Hex 0x92
Module Product ID: Unknown
Memory Subsystem Controller Manufacturer ID: Unknown
Memory Subsystem Controller Product ID: Unknown
Non-Volatile Size: None
Volatile Size: 16 GB
Cache Size: None
Logical Size: None2. 仅查看插槽数量和每个插槽的容量
sudo dmidecode -t memory | grep -A5 "Memory Device$" | grep -E "Size|Locator"
lichang@ubuntu:~$ sudo dmidecode -t memory | grep -A5 "Memory Device$" | grep -E "Size|Locator"
Size: No Module Installed
Size: 16384 MB
Size: No Module Installed
Size: 16384 MB