Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Must have ram installed incorrectly: 2x2x2GB reads as only 4GB
- Thread starter marklight
- Start date
- Sort by reaction score
Yea that's what I was thinking. I ordered 4 GB (2X2) , and I thought that my mac pro would have come with 2GB (1X1), but instead it just came with a single 2GB chip. So I figured that it would probably be something with pairing seeing how it was shrinking down each stick to 1GB.
Interesting. So the implication here is that if you have a stand alone stick of RAM, the pairing rules do not apply? I may be in your boat if that's the case...
Oh well, we'll cross that bridge...I think you must have hit the nail on the head: the OP surely cannot have received a 2008 Mac Pro with a single 2GB module. There should be a 1GB module in each riser.
If it really did come with a single 2GB module - which is almost never going to happen direct from Apple (and definitely wouldn't have been Apple's intention) - then you will need to return the memory and get it replaced. Buying a second module simply won't do - they need to be matched pairs and the only way to get a matched pair is to buy them as a matched pair. A single module is utterly worthless - it's of no use to anyone.
That diagram is for the old Mac Pros, but it's the same for the new Mac Pro with 1 exception: the stock configuration of 2 x 1GB modules in the early 2008 Mac Pro actually has 1 module in slot 1 of each riser, not both together in one riser as shown in the diagram
Yes. They just shouldn't expect to see 2 modules in the same riser as the stock configuration.