User Guide

Mac Pro Upgrades — PCI Express/Graphics Card 169
Warning: When installing or removing a card, handle it only by the edges. Do not touch its
connectors or any of the components on the card.
Standard Card
Align the card’s connector with the expansion slot and press until the connector is inserted 1.
all the way into the slot. If you’re installing a 12-inch card, make sure the card engages the
appropriate slot in the PCI card guide.
• Don’t rock the card from side to side; instead, press the card straight down into the slot.
• Don’t force the card. If you meet a lot of resistance, pull the card out. Check the connector
and the slot for damage or obstructions, then try inserting the card again.
• Pull the card gently to see if it is properly connected. If it resists and stays in place and its
gold connectors are barely visible, the card is connected.
Replace the PCI bracket and tighten the two screws that secure it to the enclosure.2.