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Expansion card slot identification
NOTE: Read Warnings and cautions on page 59 before servicing this component.
This section identifies and describes workstation expansion card slots, and presents card configuration
information.
Slot identification and description
The following figure identifies workstation expansion card slots.
Figure 5-23 Identifying expansion card slots
The following table describes the workstation PCIe card slots.
Table 5-5 PCI slots
Slot Type Slot power
(Maximum)
1 PCIe2 - x8(4) 25W
2 PCIe2 - x16 75W 75W
3 PCIe - x8(4) 25W
4 PCIe2 - x16 75W 75W
5 PCI 32/33 25W
6 PCI 32/33 25W
NOTE: The x1, x4, x8, and x16 designators describe the number of electrical PCIe lanes routed to an
expansion slot. For example, x16(8) means that the expansion slot is mechanically a x16 length
connector, with eight PCIe lanes connected. A x16 graphics card runs at the bandwidth of the slot it is
plugged into.
Slots one and three use open-ended PCIe connectors, so a PCIe x16 card can be inserted. Graphics
cards greater than 75 watts require the use of an auxiliary power cable adapter.
90 Chapter 5 Replacing components ENWW