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Fedora 14 HP Netbook 210 Mini

My netbook had 1 GB of DDR3 memory. However, that wasn't enough. So I decided to replace the 1 GB with a 2GB or DDR3.

However, what command can I issue to be sure that I am using DDR3.

I tried the following cat /proc/meminfo

However, it didn't list any information about DDR3.

Is there some other command I can use?

Many thanks for any suggestions.

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Have you tried dmidecode? –  Malabarba Dec 11 '10 at 6:20

2 Answers 2

up vote 4 down vote accepted

Running dmidecode or lshw should show the type. Might require root privileges to check, however.

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Found it using dmidecode. However, lshw return 'command not found'. –  ant2009 Dec 11 '10 at 7:32
It is well known that dmidecode is inaccurate in reporting memory information. See here –  David Schwartz Jan 12 '12 at 0:49

Here's the exact way to find out whether you have DDR2 or DDR3 Memory on Debian or Ubuntu systems:

sudo dmidecode | grep DDR

It will return something like this:

Type: DDR3

Or you can do this:

sudo lshw | grep DDR

It will return a bit more information, like this:

description: SODIMM DDR3 Synchronous 1600 MHz (0.6 ns)

You're welcome.

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As noted in the comment posted more than two years ago, to Sathya's answer posted more than three years ago, dmidecode is inaccurate. And lshw wouldn't work for the original poster. –  ChrisInEdmonton Apr 24 at 0:12

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