Dell NM176 owner manual Expansion Cards, Installing the Power Supply, Installing an Expansion Card

Installing the Power Supply

1Lower the power supply into the chassis and slide it backward until the four pins on the power supply are engaged into the securing brackets.

2Using a #2 Phillips screwdriver, install the screw at the front of the power supply that secures the power supply to the chassis.

3Connect the following power supply cables: a P3 to the hard drive cable harness

b P2 to the system board connector 12V

c P1 to the system board connector PWR_CONN

4Close the system. See "Closing the System" on page 55.

Expansion Cards

The system is available with an optional PCIe riser card or PCI-X/PCIe riser card. The PCIe riser card contains two PCIe expansion slots with x8-lane connectors—slot 1 has x4-lane capability and slot 2 has x8-lane capability. The PCI-X/PCIe riser card provides one PCI-X expansion slot and one PCIe x8-lane expansion slot. If you are installing a remote access controller card, it must be installed in the upper slot of a PCI-X/PCIe riser card. See "PCIe Riser Card Connectors" on page 124 for the locations of the expansion-card slots on the two types of riser cards.

Installing an Expansion Card

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1Open the system. See "Opening the System" on page 54.

2Remove the expansion-card retainer adjacent to the expansion card slots. See Figure 3-14.

3Slide the expansion-card sliding retainer to the retracted or open position. See Figure 3-15.

Installing System Components

75