Expansion cards, Expansion card installation guidelines, Installing an expansion card – Dell PowerEdge 2850 User Manual
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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
Expansion Card Installation Guidelines
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
.
lists the operating speed for the PCI-X riser board expansion-card slots.
Table 6-1. PCI-X Riser Board Expansion Slot Speeds
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
.
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
Installing an Expansion Card
1.
Unpack the expansion card and prepare it for installation.
For instructions, see the documentation accompanying the card.
2.
Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
3.
Open the system. See "
Opening the System
" in "Troubleshooting Your System."
NOTE:
The expansion-card slots are not hot-pluggable.
Slot
Operating Speed
1
33, 66, 100, or 133 MHz
2
33, 66, 100, or 133 MHz
3
33, 66, 100, or 133 MHz
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.
Slot
Operating Speed
1
2GB per second
2
4GB per second
3
33, 66, or 100 MHz
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.