howto check RAM chip specification from Ubuntu

7/27/2011 , , 0 Comments

I wanted to add more RAM to my Ubuntu box. How do I find out Memory type/specification information under Linux OS (ubuntu, Fedora, Suse etc) without opening the case.

"dmidecode" command is a tool that extracts computer's DMIT table into readable format. Open terminal and type the following command

$ sudo dmidecode --type memory (or) $ dmidecode --type memory | less (or) $ sudo dmidecode -- type 17

Output looks like:

Handle 0x0040, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x003A
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 2048 MB
Form Factor: DIMM
Set: None
Locator: DIMM2
Bank Locator: BANK2
Type: DDR2
Type Detail: Synchronous
Speed: 800 MHz (1.2 ns)
Manufacturer: Manufacturer2
Serial Number: SerNum2
Asset Tag: AssetTagNum2
Part Number: PartNum2

Handle 0x0042, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x003A
Error Information Handle: Not Provided
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: DIMM
Set: None
Locator: DIMM3
Bank Locator: BANK3
Type: Unknown
Type Detail: Unknown
Speed: Unknown
Manufacturer: Manufacturer3
Serial Number: SerNum3
Asset Tag: AssetTagNum3
Part Number: PartNum3


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