Re: detect type of ram from linux

On Sun, 1 May 2005, Robby Russell wrote:

> I have a client who is running a Linux server and wants to upgrade his
> RAM but doesn't want to take it down to check the RAM sticks until he
> has some more RAM to add into it. I am curious if there is a command
> that will tell us what type of RAM is in the box from the shell.

Try 'dmidecode' and search for "Memory". On an IBM Thinkpad, I get this
info:

Handle 0x0008
        DMI type 6, 12 bytes.
        Memory Module Information
                Socket Designation: DIMM Slot 1
                Bank Connections: 0 1
                Current Speed: Unknown
                Type: DIMM SDRAM
                Installed Size: 512 MB (Double-bank Connection)
                Enabled Size: 512 MB (Double-bank Connection)
                Error Status: OK
Handle 0x0009
        DMI type 6, 12 bytes.
        Memory Module Information
                Socket Designation: DIMM Slot 2
                Bank Connections: 2 3
                Current Speed: Unknown
                Type: DIMM SDRAM
                Installed Size: 256 MB (Double-bank Connection)
                Enabled Size: 256 MB (Double-bank Connection)
                Error Status: OK


as well as:

Handle 0x002D
        DMI type 17, 27 bytes.
        Memory Device
                Array Handle: 0x002C
                Error Information Handle: No Error
                Total Width: 64 bits
                Data Width: 64 bits
                Size: 512 MB
                Form Factor: SODIMM
                Set: None
                Locator: DIMM 1
                Bank Locator: Bank 0/1
                Type: DDR
                Type Detail: Synchronous
                Speed: Unknown
                Manufacturer: Not Specified
                Serial Number: Not Specified
                Asset Tag: Not Specified
                Part Number: Not Specified
Handle 0x002E
        DMI type 17, 27 bytes.
        Memory Device
                Array Handle: 0x002C
                Error Information Handle: No Error
                Total Width: 64 bits
                Data Width: 64 bits
                Size: 256 MB
                Form Factor: SODIMM
                Set: None
                Locator: DIMM 2
                Bank Locator: Bank 2/3
                Type: DDR
                Type Detail: Synchronous
                Speed: Unknown
                Manufacturer: Not Specified
                Serial Number: Not Specified
                Asset Tag: Not Specified
                Part Number: Not Specified



	Pat

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