Apple PCIe/Graphics Card ユーザーズマニュアル

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PCIe Slots
Your computer’s 
backplane board includes 
one double-wide PCI 
Express (PCIe) graphics 
slot and three PCIe 
expansion slots, for a total 
of four slots. All four slots 
physically support cards of 
up to x16 slot width. 
Slot electrical specs:
Slots 1 and 2:
• 
 x16 
PCIe 2.0
Slots 3 and 4:
• 
 x4  
PCIe 2.0
Important: Combined 
maximum power 
consumption for all 
four PCIe slots must not 
exceed 300 W.
Required Tool
Phillips #1 screwdriver