Motherboard Memory specifications

Could someone briefly explain what the specification 16/32 Gb memory means?  I'm guessing that to get the full 32 Gb you may need some additional hardware or perhaps there is a software limitation?

 Has anyone ever installed the maximum 32 Gb memory in one of these boards? I've heard that there are often problems when all the slots are filled and that ECC memory is a better choice.
MichaelSeareAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

woodendudeCommented:
What's the make and model of the motherboard?
0
Merlin740500Commented:
To have 32GB of memory and to manage it properly are two things!  What OS do you use?

I wait for the motherboard model too.
0
CallandorCommented:
4GB is the maximum for most desktop motherboards.  If you can install more, it must be a server motherboard with more than 4 memory slots.  Yes, there is an OS limitation: http://www.brianmadden.com/content/content.asp?ID=69 - you need to use a server OS to go beyond 4GB.
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

Merlin740500Commented:
Callandor i may be wrong as it changed a lot every years but he can do a virtual drive using memory.  The summum for gamers or drawers, video editors..!  
0
CallandorCommented:
As far as I know, the 4GB limit is caused by 32-bit addressing, which is why the advanced server OS'es can go beyond it.
0
Merlin740500Commented:
yes
0
WatzmanCommented:
Callandor is right, 4 gig is the max supported by current CPUs.  That is the physical address space limit, there are not enough pins in the memory address bus for anything beyond that, and there is no way around this.
0
sciwriterCommented:
ECC is not a solution unless the MB specifically allows it.  You cannot get 16 GB memory without some special add-on cards.  The 16/32 GB designation is not a realistic memory goal, perhaps it somehow relates to the speed of the RAM, not, its capacity.  ECC does NOT change the capacity.
0
MichaelSeareAuthor Commented:
16/32 Gb is getting to be a common spec for dual Xeon based servers. Just go to the Supermicro.com website and right on the front ad there is a server with up to 32Gb of ram(i.e. SS6014H-T).  Actually, there are quite a few boards with 16Gb and a smaller amount with 32GB. The new mySql cluster is an "All-memory" database. A Hard drive is just needed for backup.
0
CallandorCommented:
Yes, server motherboards can provide hardware support for more than 4GB.  To use it, the OS has to do a little juggling with the memory.  From my previous link:

"However, systems booted /PAE can support up to 64GB physical memory. A 32-bit process can 'use' large amounts of memory via AWE (address windowing extension) functions. This means that they must map views of the physical memory they allocate into their 2GB virtual address space. Essentially, they can only use 2GB of memory at a time."
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Components

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.