HP Z400 H2D81US Expansion card slot identification, Slot identification and description, Type

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 5-23Identifying 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