What is maximum amount of memory supported?

[jcllings]

3rd Generation Intel Core i7-3610QM Processor ( 2.30GHz 6MB L3 Cache - 4 Cores plus Hyperthreading )
16 GB Dual Channel DDR3 SDRAM at 1600MHz - 2 X 8 GB

This is my awesome System76 laptop. When I got it, I couldn't afford much for memory, was only able to get 16 Gb but now I've got some more cash and would like to max it out. Why? I've noticed that when you reach the point where your box is getting slow and you want a memory upgrade, there isn't any by that time remaining in the market for your machine. ...so I like to get this out of the way before I need it since i will eventually regardless.

Question: How can I figure out how much memory these two DDR3 slots can handle? It's not explicitly mentioned in the BIOS. Is there a way to do this without cracking open the case to get the motherboard model number for reference?

[grahammechanical]

Why do you not go on the System76 web site and look up your machine? Then you might see something like this

Up to 16 GB 204 pin Dual Channel DDR3 @ 1600 MHz

Regards.

[slickymaster]

Moved to the System76 Support sub-forum.

[MoebusNet]

In Terminal, type:

sudo dmidecode

That should tell you the maximum RAM supported for your motherboard. From: http://ubuntuforums.org/showthread.php?t=1224006

[jcllings]

Why do you not go on the System76 web site and look up your machine? Then you might see something like this

Regards.

Well, The information I had posted regarding the hardware actually is a cut 'n paste from their site. I suppose I could bug System76 Support but IDK how long that support contract actually runs.
You would think they would see this as a marketing opportunity to sell me some memory but it doesn't appear that they sell much in the way of individual parts.

[jcllings]

It's already maxed out at 16 Gb according to System76 support.

[untrustytahr]

sudo dmidecode -t 16

Will display max capacity

[matt_symes]

Hi

You can get all the information with

sudo dmidecode -t memory

For total allowed memory, look on the memory controller.

sudo dmidecode -t 5 | grep -i memory

Kind regards

[jcllings]

sudo dmidecode -t 16

Will display max capacity

...

Hi

You can get all the information with

sudo dmidecode -t memory

For total allowed memory, look on the memory controller.

sudo dmidecode -t 5 | grep -i memory

Kind regards

Wow, those commands are awesome and definitely going into my alias collection!

...and look what I found out despite what System76 was telling me:

johndoa@machine:~$ sudo dmidecode -t 16
[sudo] password for johndoa:
# dmidecode 2.12
# SMBIOS entry point at 0x000f04c0
SMBIOS 2.7 present.

Handle 0x0049, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 32 GB
Error Information Handle: Not Provided
Number Of Devices: 4

Hmmm... what is meant above by 4 devices? Not memory slots, I hope because I only saw 2 when I had the case opened earlier. ...or could there be two more tucked away somewhere?

[jcllings]

One question always leads to another. :-/

OK so now what I am hearing is that only 8Gb per channel are supported and there are only 2 memory slots I've been able to find.

Since the board only has 2 slots, it only supports 16Gb max but IMHO if the CPU supports 32 Gb, it seems illogical that the mobo would only support 16Gb max. I've seen plenty less logical hardware idiosyncrasies before though.

How can I check what the maximum amount of memory per slot is?