3. Turn off the computer and attached devices and disconnect all external cablesand power cords; then, remove the side cover. For more information aboutremoving the side cover, see “Removing the side cover” on page 45.4. Disconnect the support bracket assembly fan cable from the connector (SYSFA3)on the system board. For the location of the fan cable connector, see “Systemboard internal cable connectors” on page 36.5. Locate the end of the support bracket near the rear of the computer. Pull it outapproximately 152 mm (6 in.).6. Pull the front end of the support bracket assembly away from the computerand place the assembly aside.To reinstall the support bracket assembly, reverse the previous steps.Working with adaptersYour computer comes with adapter connectors, call slots. The AGP video adapter isinstalled in the AGP slot. You can install up to five PCI adapters in PCI expansionslots 1 through 5. All PCI expansion slots are 32-bit, 33 MHz slots.The following illustration shows the location of the AGP and PCI expansion slotson the system board and the PCI extender board.Note: The illustrations in this document might differ slightly from your hardware.AGP slotPCI slot 1PCI slot 2PCI slot 3PCI slot 4PCI slot 5Adapter considerationsBefore you install adapters, review the following:v Locate the documentation that comes with the adapter and follow thoseinstructions in addition to the instructions given in this chapter. If you need tochange switch settings or jumper settings on your adapter, follow theinstructions that come with the adapter.v You can install full-length adapters in all five PCI expansion slots.v Your computer supports 5.0 V and universal PCI adapters; it does not support3.3 V adapters.v Your computer uses a rotational interrupt technique to configure PCI adapters.Because of this technique, you can install a variety of PCI adapters that currentlydo not support sharing of PCI interrupts.Chapter 5. Installing options 47