0
votes
3answers
249 views

Which memory speed for an early 2008 Mac Pro?

I've got an early 2008 Mac Pro with 4 Gb of memory which I would like to upgrade, but I'm unsure of the memory speed. In my "About This Mac" dialog it says the memory speed should be 667 MHz, but ...
0
votes
1answer
45 views

Where can I find ALL of the memory specs for the Mac Pro?

I have a Mac Pro (Mid 2012) with stock RAM, and I'm aware of the usual info about what it's using, e.g. DDR3 1333 PC3-10600E SDRAM, but I want to know more. I understand there are specs such as ...
3
votes
2answers
402 views

Why my RAM runs at 800 MHz in 4 slots of my mac pro instead of 1066?

I've got a Mac Pro 4,1. I had two KVR1066D3Q8R7S/8G planks in it and it ran on 1066 Mhz. Now I've bought two planks of KVR1066D3Q8R7S/8GI (the same with "I" at the end - stands for intel ...
2
votes
1answer
69 views

Can I use memory taken from a Macbook Pro in a Mac Pro?

My Macbook Pro from around 2008 finally died. It has two 1 GB memory chips. (Specifically, two of this Samsung chip.) My question is: can I use these chips in my 2011 Mac Pro?
1
vote
1answer
64 views

Can I run 533 MHz RAM in original Mac Pro?

I have an original Mac Pro with 2 GB of RAM in it. Running Mountain Lion on it is a bit painful - lots of paging. I happen to have 4 GB of PC2-4200 ECC FB-DIMMs kicking about. What I wanted to know is ...
13
votes
2answers
7k views

Why do Apple's latest MacBook Pros cap the RAM limit at 8GB?

According to apple's latest documentation (at the time of writing), the cap on the newest MacBook Pros is 8GB RAM. The Mac Pros, however, can take up to 32GB RAM. So, why do the MacBooks have this ...
0
votes
1answer
72 views

Does the Mac Pro 2008 display memory speeds accurately in System Information?

Can anyone confirm that when a Mac Pro 2008 has 800MHz FB-DIMMs installed it displays the Ram speed as 800Mhz in the System Information and not 667MHZ. I am running OS X Lion.
3
votes
1answer
565 views

Do Mac Pros use NUMA?

Does Mac OS X make use of NUMA on Mac Pros with two (or more) CPUs?
3
votes
2answers
1k views

How to determine how much RAM I can put in my Mac Pro

I have a Mac Pro 4,1 (Dual 2.66Ghz, 6GB Ram). I want to increase the RAM, possibly adding 8GB to my existing 6GB. The RAM slots are used as follows: SLOT1: 1GB SLOT2: 1GB SLOT3: 1GB SLOT4: OPEN ...
2
votes
1answer
461 views

Memory in early 2008 Mac Pro

I have an early 2008 Mac Pro. It currently has 6G of ram (2x1G and 2x2G sticks). I've been swapping with some programs for a while, and just got around to buying more ram. (4x4G). My question ...
3
votes
2answers
3k views

Mac Pro Memory - Should I use 8 RAM slots in dual-channel mode or 6 RAM slots in triple-channel mode?

I have a Mac Pro tower with a 2 x 2.66 GHz 6-Core Intel Xeon chipset, and 8 RAM slots. I have been told because of the processor's triple-channel memory capability that I should be installing RAM ...