Dell 745N Computer Hardware User Manual


 
Installing System Components 61
3
Connect the following power supply cables:
a
P3 to the power distribution board
b
P2 to the system board connector CN2
c
P1 to the system board connector CN3
4
Close the system. See "Closing the System" in "Troubleshooting Your System."
Expansion Cards
The system supports up to two PCI expansion cards, which are installed in connectors on a riser
board. The upper slot supports PCI 32-bit, 33-MHz (5.0-V) expansion cards and the lower slot
supports PCI-X 64-bit, 66-MHz (3.3-V) expansion cards. See Figure A-4. If you are installing a
remote access controller card, it must be installed in the upper slot of the riser board. Install most
RAID and SCSI controller cards in the lower slot.
NOTE: The connectors on 64-bit cards are longer than the 32-bit PCI connector in the system. However,
as long as the card is installed properly, the card will still function.
Installing an Expansion Card
CAUTION: See your System Information Guide for complete information about safety precautions,
working inside the computer, and protecting against electrostatic discharge.
1
Open the system. See "Opening the System" in Troubleshooting Your System."
2
If you are installing a remote access controller card and a daughter card is installed, remove
the daughter card. See "Removing a Daughter Card."
3
Remove the expansion-card retainer adjacent to the PCI slots. See Figure 6-7.
4
Remove the filler bracket on the slot you will be using.
NOTE: Keep this bracket if you need to remove the expansion card. Filler brackets must be
installed over empty expansion card slots to maintain Federal Communications Commission (FCC)
certification of the system. The brackets also keep dust and dirt out of the system and aid in proper
cooling and airflow inside the system.
5
If you are installing a CERC SATA RAID controller or remote access controller, do the
following as appropriate:
Connect the LED cable to bottom of the RAID controller. See Figure 6-8.
Connect the remote access controller cable to the bottom of the remote access controller.
See Figure 6-9.
6
Insert the expansion card firmly into the expansion-card connector on the riser board until
the card is fully seated, being careful not to remove the riser board from the system board.
NOTE: Ensure that the expansion-card bracket is also inserted into the securing slot on the
chassis's back panel.
7
Replace the expansion-card retainer. See Figure 6-7.
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