我想使用下面的命令查看我的内存类型信息（例如：DDR2、DDR3、DDR4），但它没有显示。原因是什么？有什么办法可以知道吗？
$ sudo lshw -short -C memory
H/W path Device Class Description
========================================================
/0/0 memory 64KiB BIOS
/0/5e memory 32GiB System Memory
/0/5e/0 memory 8GiB DIMM Synchronous 2133 MHz (0.5 ns)
/0/5e/1 memory DIMM Synchronous [empty]
/0/5e/2 memory 8GiB DIMM Synchronous 2133 MHz (0.5 ns)
/0/5e/3 memory DIMM Synchronous [empty]
/0/5e/4 memory 8GiB DIMM Synchronous 2133 MHz (0.5 ns)
/0/5e/5 memory DIMM Synchronous [empty]
/0/5e/6 memory 8GiB DIMM Synchronous 2133 MHz (0.5 ns)
/0/5e/7 memory DIMM Synchronous [empty]
/0/6c memory 384KiB L1 cache
/0/6d memory 1536KiB L2 cache
/0/6e memory 15MiB L3 cache
$ sudo dmidecode --type memory [140/1342]
# dmidecode 2.12
# SMBIOS entry point at 0x000f0570
SMBIOS 2.8 present.
Handle 0x005E, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 512 GB
Error Information Handle: Not Provided
Number Of Devices: 8
Handle 0x0060, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x005E
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: DIMM
Set: None
Locator: DIMM_A1
Bank Locator: NODE 1
Type: Other
Type Detail: Synchronous
Speed: 2133 MHz
Manufacturer: Samsung
Serial Number: 9203CE6C
Asset Tag: DIMM_A1_AssetTag
Part Number: M378A1G43DB0-CPB
Rank: 2
Configured Clock Speed: 2133 MHz
Handle 0x0062, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x005E
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM_A2
Bank Locator: NODE 1
Type: Other
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag: NO DIMM
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Handle 0x0063, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x005E
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: DIMM
Set: None
Locator: DIMM_B1
Bank Locator: NODE 1
Type: Other
Type Detail: Synchronous
Speed: 2133 MHz
Manufacturer: Samsung
Serial Number: 9203CE36
Asset Tag: DIMM_B1_AssetTag
Part Number: M378A1G43DB0-CPB
Rank: 2
Configured Clock Speed: 2133 MHz
Handle 0x0065, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x005E
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM_B2
Bank Locator: NODE 1
Type: Other
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag: NO DIMM
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Handle 0x0066, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x005E
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: DIMM
Set: None
Locator: DIMM_C1
Bank Locator: NODE 1
Type: Other
Type Detail: Synchronous
Speed: 2133 MHz
Manufacturer: Samsung
Serial Number: 9203CE7C
Asset Tag: DIMM_C1_AssetTag
Part Number: M378A1G43DB0-CPB
Rank: 2
Configured Clock Speed: 2133 MHz
Handle 0x0068, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x005E
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM_C2
Bank Locator: NODE 1
Type: Other
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag: NO DIMM
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Handle 0x0069, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x005E
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 8192 MB
Form Factor: DIMM
Set: None
Locator: DIMM_D1
Bank Locator: NODE 1
Type: Other
Type Detail: Synchronous
Speed: 2133 MHz
Manufacturer: Samsung
Serial Number: 9203CE7E
Asset Tag: DIMM_D1_AssetTag
Part Number: M378A1G43DB0-CPB
Rank: 2
Configured Clock Speed: 2133 MHz
Handle 0x006B, DMI type 17, 34 bytes
Memory Device
Array Handle: 0x005E
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM_D2
Bank Locator: NODE 1
Type: Other
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag: NO DIMM
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
答案1
我不知道为什么运行命令时它不显示sudo dmidecode --type memory。
然而，在谷歌上快速搜索一下零件编号M378A1G43DB0-CPB显示它是DDR4。
在以下文档第 6 页末尾处，该产品列在4.7 288Pin DDR4 非 ECC UDIMM
webcache.googleusercontent.com/search?q=cache:www.samsung.com