环境信息
- Ubuntu 版本：Ubuntu 18.04.3 LTS
- 主板：SuperMicro C9X299-PG300F
- 初始 RAM 大小：总共 16GB，每个插槽一个 16GB 卡
- 内存类型：MTA16ATF2G64AZ-2G6E1
当前状态
我正在尝试添加与当前 RAM 类型相同的新 RAM。dmidecode 命令显示没有添加 RAM，内存阵列总数为 1，每个大小为 16GB。因此，free 命令输出 16GB 的可用内存大小。
当前 RAM 的插槽为 DIMMA1，相同类型的新 RAM 放置在插槽 DIMMB1。
问题
我如何指定正确的操作才能被 ubuntu 或主板识别？
我尝试过的命令及其输出
解码
$ sudo dmidecode -t memory
# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 3.1.1 present.
Handle 0x001A, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 1536 GB
Error Information Handle: Not Provided
Number Of Devices: 4
Handle 0x001B, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x001A
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 16384 MB
Form Factor: DIMM
Set: None
Locator: DIMMA1
Bank Locator: P0_Node0_Channel0_Dimm0
Type: DDR4
Type Detail: Synchronous
Speed: 2666 MT/s
Manufacturer: Micron
Serial Number: 1EE08861
Asset Tag:
Part Number: 16ATF2G64AZ-2G6E1
Rank: 2
Configured Clock Speed: 2666 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Handle 0x001C, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x001A
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMMA2
Bank Locator: P0_Node0_Channel0_Dimm1
Type: Unknown
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag:
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Handle 0x001D, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x001A
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMMB1
Bank Locator: P0_Node0_Channel1_Dimm0
Type: Unknown
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag:
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Handle 0x001E, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x001A
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMMB2
Bank Locator: P0_Node0_Channel1_Dimm1
Type: Unknown
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag:
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Handle 0x001F, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 1536 GB
Error Information Handle: Not Provided
Number Of Devices: 4
Handle 0x0020, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x001F
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMMC1
Bank Locator: P0_Node0_Channel2_Dimm0
Type: Unknown
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag:
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Handle 0x0021, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x001F
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMMC2
Bank Locator: P0_Node0_Channel2_Dimm1
Type: Unknown
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag:
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Handle 0x0022, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x001F
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMMD1
Bank Locator: P0_Node0_Channel3_Dimm0
Type: Unknown
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag:
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
Handle 0x0023, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x001F
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMMD2
Bank Locator: P0_Node0_Channel3_Dimm1
Type: Unknown
Type Detail: Synchronous
Speed: Unknown
Manufacturer: NO DIMM
Serial Number: NO DIMM
Asset Tag:
Part Number: NO DIMM
Rank: Unknown
Configured Clock Speed: Unknown
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
自由的
$ free -m
total used free shared buff/cache available
Mem: 15710 1827 12570 50 1312 13505
Swap: 15624 0 15624