How to check RAM channel?

Question

How to check if my ram is dual channel or not? Is there a piece of software similar to CPU Z to check this?

Solution 1

sudo dmidecode --type memory should show you if your hardware supports dual channel (look at Locator / Bank Locator for dual channel motherboards it will say something like ChannelA-DIMM0 ChannelB-DIMM1 etc.

But that does not show if the ram is working at a particular bandwidth. From what I read here the only way I know is to run memtest86 and look at the Mode 64, 128, 196, 256bit for single, dual, triple and quad channel

Solution 2

Translate from Indonesian :

For Linux distributions (x86 and x86_64), to check information about RAM channels, you can use the following command:

sudo dmidecode -t memory | grep Channel The output that appears should be like this:

Locator: ChannelA-DIMM0
Locator: ChannelB-DIMM0

You can see ChannelA and ChannelB, meaning RAM is running in dual channel mode. If nothing appears, it means a single channel.

Source : https://id.quora.com/Bagaimana-cara-cek-RAM-apakah-single-channel-atau-dual-channel-di-Ubuntu

Solution 3

dmidecode is the tool for anything memory related

Long version:

sudo dmidecode -t 17 

Look for "size" for the amount and "channel" or "locator" for the banknumber.

Filtered on size or channel and printing it with RAM ...

sudo dmidecode -t 17 | awk 'BEGIN { FS=":"; OFS="\t" } /Size|Channel/ { line = (line ? line OFS : "") $2 } /^$/ { print line; line="RAM" }' | grep -iv 'no'

Comments

[gdAdithya]

I get notifications like this: 4096 MB RAM ChannelA-DIMM0 4096 MB ChannelB-DIMM0 RAM How do I confirm whether it is single channel or dual channel?

[gdAdithya]

Thanks mate, this information is very useful for me .. And finally I know that my RAM is working on dual channel

[EODCraft Staff]

Channel A and Channel B Looks Dual to me...Is it that simple?

[Rinzwind]

yes it is that simple :)