The system will not function with a mixed configuration. It is the COMMAND+ALT+N+V that works only on PPC, and that is known as resetting NVRAM, or Non-Volatile Ram Setrings, for older machines’ logic boards. It resets PRAMalso known as PARAMETER RAM SETTINGS. NOTE: Mac Pro can use either RDIMM or LRDIMM, but they cannot be combined. My Unibody MacBook Pro, 27 iMac, Unibody Mac Mini, and MacBook Air, ALL USE this boot command.

The Mac Pro has 12 available memory slots.ġ28GB Modules – Buying options2933MHz DDR4 PC4-23400 LRDIMM 128GBġ.0TB (128GB x 8)24-Core, 28-Core machines onlyġ.5TB (128GB x 12)24-Core, 28-Core machines onlyĦ4GB Modules – Buying options 2933MHz DDR4 PC4-23400 LRDIMM 64GB.128GB / 64GB Modules 2933MHz LRDIMM Memory for 12-Core, 16-Core, 24-Core, 28-Core Mac Pro All you have to do is pop open the access panel, remove the existing RAM modules, add your new modules, and then replace the panel. There wont be many people buying 1.5TB of memory, especially since the Mac Pro is upgradable.Ī lot of Mac users tend to buy their computers (at least the ones that can be upgraded) with the smallest available memory and then they will buy more affordable memory upgrades from companies such as OWC. You can see below that upgrading the RAM in a 27 iMac is a simple job. OWC offers memeory upgrade packages up to 1.5TB that are up to 65% less than what Apple is charging.Īpple chargers a whopping $25,000 USD for 1.5TB (12x128GB) of DDR4 ECC memory.

Well, OWC has a more affordable solution (I use that term affordable very loosely!).

If you have done some price searching on the Mac Pro you will be well aware of how expensive the memory upgrades are.

Ram board mac pro 2007