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Mac Pro Tower 2006 - 2008 > DDR2 PC5300 667MHz


Mac Pro Tower 2006 - 2008

These Macs were a direct replacement for the PowerMac G5. The casing is almost identical, though the Mac Pro has two slots for internal DVD drives vs the G5's one. Internally this was a very significant upgrade. The Intel Xeon chips in the Mac Pro are considerably more powerful and also massively more efficient that the power hungry PowerPC G5. This allowed the power supply and cooling design to be scaled back significantly, allowing Apple to take advantage to the huge case to fit in 4 internal drive bays (vs 2 in the G5).

While these Macs definitely filled their role in their day, they have aged less well than the subsequent model. There are two main revisions in this group - the 2006 and the 2008. The 2007 is a 2006 with upgraded firmware (which can be applied onto the 2006), despite having a whole model identifier to itself. The 2008 can run up to OS X 10.11 El Capitan, while the 2006/7 is limited to 10.7 Lion (technically it can be got up to 10.11 but its an involved process requiring expensive hardware upgrades). All models use DDR2 memory, and Apple went for fully buffered DIMM modules (FB-DIMMs) which are more expensive and, as DDR2 memory as a whole is now obsolete, are much more difficult to source. The 2008 wants 800MHz FB-DIMMS which we stopped being able to source in 2018, though fortunately it can run the 667MHz modules of the earlier machines, albeit at the cost of slowing their memory access down a little.

These Macs use PATA for their DVD drives, rather than SATA, which makes sourcing a replacement difficult. However they do have additional spare SATA ports on their logic board, and its possible to run a cable to them and use a SATA DVD drive. We no longer carry the parts to do this ourselves, but you can see our old fitting guide here.

Mac Pro Tower 2006 - 2008 > RAM > DDR2 PC5300 667MHz

To see only products compatible with your exact Mac, you can search for it by name, or any identifier such as model identifier, part number, serial number, etc.:


  -  For the 2006 and 2007 revisions.  -  Fully compatible with the 2008 revision, though these Macs can also use faster 800MHz modules.