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Expansion Cards

The system is available with a PCI-X riser board or an optional PCI-X/PCI Express (PCIe) riser board. The PCI-X riser board provides three PCI-X expansion

slots and the PCI-X/PCIe riser board provides one PCI-X expansion slot, one PCIe x4-lane expansion slot, and one PCIe x8-lane expansion slot

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Expansion Card Installation Guidelines

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PCI-X Riser Board Expansion Slots

Slot 1 and slot 2 share the same bus. Slot 3 is on a separate bus. You can install expansion cards of different operating speeds on the same bus; however,

thebuswilloperateattheslowestoperatingspeedofthecardsonthatbus.Forexample,ifonecardonthebushasanoperatingspeedof66MHzandthe

othercardhasanoperatingspeedof100MHz,thebuscanoperateonlyat66MHz.Also,ifaPCIcardisinstalledonthesamebuswithaPCI-X card, the bus

runs in PCI mode.

To identify expansion slots, see FigureA-4. Table6-1 lists the operating speed for the PCI-X riser board expansion-card slots.

Table 6-1. PCI-X Riser Board Expansion Slot Speeds

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Optional PCI-X/PCIe Riser Board Expansion Slots

The optional PCI-X/PCIe riser board provides one PCIe x4-lane slot, one PCIe x8-lane slot, and one PCI-X 100-MHz slot.

To identify expansion slots, see FigureA-5. Table6-2 lists the PCI bus and operating speed for the optional PCI-X/PCI-e riser board expansion-card slots. The

three expansion card slots are on separate buses.

Table 6-2. Optional PCI-X/PCIe Riser Board Expansion Slot Speeds

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Installing an Expansion Card

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1. Unpack the expansion card and prepare it for installation.

For instructions, see the documentation accompanying the card.

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2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.

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3. Open the system. See "Opening the System" in "Troubleshooting Your System."

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NOTE: The expansion-card slots are not hot-pluggable.

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Slot

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Operating Speed

33, 66, 100, or 133 MHz

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NOTE: Slot 3 supports half-length expansion cards only.

NOTE: Although the PCIe x4-lane expansion slot is physically a PCIe x8 connector, it functions only as a PCIe x4-lane slot.

NOTE: The expansion-card slots are not hot-pluggable.

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Slot

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Operating Speed

2GB per second

4GB per second

33, 66, or 100 MHz

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NOTE: Slot 3 supports half-length expansion cards only.

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See

your Product Information Guide for complete information about safety precautions, working inside the computer, and protecting against

electrostatic discharge.

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Dell PowerEdge 2850 Guía para resolver problemas Pagina 48

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