I tried
$ sudo dmidecode -t memory command and this picture is result
So under Physical Memory Array it says Maximum Capacity: 32 GB.
So can i use 2 32GB Ram or Just 2 16GB Ram?
I mean 32GB is maximum of each Memory slot or both memory slot?
Is dmidecode trustable? can i trust this information ? Because i want to buy memory so i should know maximum supported memory of my Motherboard . my Motherboard model is LNVNB161216
Thank you guys
I am trying to add new RAM whose type is identical to the current RAM type. dmidecode command shows no added RAM and total number of memory array is 1 and each size is 16GB. So, free command outputs 16GB free size of memory.
Current RAM's slot is DIMMA1 and the new RAM of the same type is placed at the slot DIMMB1.
How can I specify the right operation to be recognized by ubuntu or mother borad ?
$ 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
$ free -m
total used free shared buff/cache available
Mem: 15710 1827 12570 50 1312 13505
Swap: 15624 0 15624
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