If you are unsure of the slot configuration as used in your machine, it can be determined by using the Expansion Slot Utility application. This application is found in the following directory location on your Mac Pro: System/Library/CoreServices. The correct configuration is with the slots configured as follows:
x4 for slot 4
x4 for slot 3
x1 for slot 2
x16 for slot 1
To see an image of the appropriate selection in the Expansion Slot Utility application,
CLICK HERE
Option 1 |
Slot 4 |
PCI-e 16x (Set to 4x) |
Empty/Storage |
Slot 3 |
PCI-e 16x (Set to 4x) |
KONA 3/3G/LHi/LHe |
Slot 2 |
PCI-e 16x (Set to 1x) |
Empty |
Slot 1 |
PCI-e 16x |
GPU |