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Discussion in 'Mac Pro' started by zopiro, Oct 30, 2012.
I have two 4GB and four 512MB dimms. What would be the best way to dispose them on the riser cards?
It may be helpful indicating which Mac Pro model you have.
The two 4GB on slot 1&2 of riser A and the four 512MB all on riser B.
I'd replace the 512MB DIMMs with 1GB DIMMs, preferably 2GB, if you can. I see on eBay you can get them quite cheap now.
This is because optimally you have the same amount of memory on each riser, and you use dual-rank DIMMs and you fill all the memory slots. 512MB DIMMs are single rank (as are some 1GB) and there is a big imbalance on how much you have on each riser.
It's a Mac Pro 1,1