Question about Processor Max Memory

[Destroia]

Hey everyone!

First post here on MacRumors. About a week ago I recieved my base model, single processor, 2010 Mac Pro. Since then I have maxed out my RAM though I likely don't utilize it enough to justify that, as well as ordered the Xeon W3690. Though I'm a pretty huge nerd when it comes to being ON a computer, I'm a real newcomer on the subject of hardware and how a lot of things function, which of course I'll learn in time as it is with all things. However, I noted that the processor I ordered has specs that state "Max Memory" is 24GB. I'm curious what the boundaries of that term are. By that, does it mean that though my mobo is picking up 32GB of RAM, it will only utilize 24? I just want to know if the 4th 8GB stick will be pointless for me to have, though I can't see it being that way. Once again, new to this subject so go easy on me!
Thanks

 

[Umbongo]

For Mac Pros, 32GB(4x8GB) will work, as will 48GB (3x16GB), and although no one seems to have tested it 96GB(3x32G) should work. Apple even offer a 32GB option with the model you have now.

The reason it is listed as only supporting 24GB is Intel only certified it for unbuffered ECC which only came in a maximum capacity of 4GB DIMMs at the time the platform was updated (March 2010). There are a total of 6 memory slots supported so 6x4GB = 24GB.

Registered memory works fine however (8GB, 16GB and 32GB available) and unbuffered DIMMs are available in 8GB capacities now.

 

[Destroia]

Ah thanks, I figured Apple wouldn't be offering it if it had no use. (Then again, I wouldn't put it past them heh.) Good to know my purchase wasn't 1/4 down the drain! Thanks