Installing RAM in Mac Pro

-JochemWeierink

Mac Pro’s are sensitive to how the DIMMs are ordered in the risers.

1. It is always best to have the same amount of RAM in each Riser.
2. It is wise to have symmetry in your risers, like 2gb, 4gb, 4gb, 2gb
3. It is good to mirror the DIMMs from on riser to the other. Meaning that if your DIMM order on one riser is 2gb, 4gb, 4gb, 2gb, you’ll want the same on the other.

However, it seems you have an odd number of DIMMs. I’d recommend you test your rig with the configuration 2, 4, x, 2 on each riser, this would leave you with one 4gb DIMM left over. This would leave you with 16gb of total RAM. If that works, replace one of your 4gb DIMMs with the leftover and test again.

If all is well in both scenarios, I would recommend getting one more 4gb DIMM to allow full parity and interleaving. With the Riser configuration of 2,4,4,2 in both risers.

I am curious as to how well the Pro will deal with RAM space bigger than 16gb. Will it work with more? If it does, let me know, I’d love to move to 32gb.

 

Same problem

 

Micron - over here http://www.micron.com/products/partdetail.aspx?part=MT18JSF25672AZ-1G1