Saphire 7950 PCIe Lanes


i have mac pro 2010 (5,1) efi sapphire 7950 (boot screen) running. seems great except wondered why system report shows pcie lane width 4x. machine has 2 16x slots gpus. have in label 16x slot. have moved card around test no change. have no idea why restrict bandwidth of card unless it's bug.

machine running high sierra.
 

only double-wide slot x16
 


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