Early 2008 - MacPro3,1
Compatible upgrades for: MA970LL/A - Early 2008 Mac Pro's.
Standard RAM: 2 GB
Maximum RAM: 64 GB*
Details: 2 GB of RAM installed as two 1 GB modules. 6 slots free. RAM must be installed in pairs, and for "best acoustic performance" contain an "Apple-approved heat sink".
*Apple officially supports 32 GB of RAM in this model, but it is capable of using 64 GB of RAM with appropriate high-density memory modules.
RAM Slots: 8