Specifications

Power Mac G5 (Late 2004) Troubleshooting - 3
General Information
AGP Cards
The AGP video card, installed in slot 1, contains the graphics processor unit (GPU) and
provides the computer’s display ports. Slot 1 is designed specifically to accept AGP cards.
Note: Certain high-performance AGP graphics cards, when installed in slot 1, block
access to the adjacent PCI slot. In this case, PCI cards can be installed in slots 3 and 4
but not in slot 2.
PCI Cards
The remaining three expansion slots, labeled 2, 3, and 4, accommodate PCI cards up to
12 inches long. The PCI slots can accommodate mixed-voltage (5.0 V, 12 V, or 3.3 V)
cards but only at 3.3 V signaling, with 32-bit or 64-bit data widths and a 33 MHz frequency.
You can add a 66 MHz card to a 33 MHz PCI slot if the card can operate at the lower 33
MHz rate.
Warning: Installing PCI cards that function only at 66 MHz could damage the computer.
However, cards that run at both 66 MHz and 33 MHz may be installed. Check with the
card’s manufacturer to see if a 66 MHz card also works at 33 MHz.