HP Z440, Z640, and Z840 Workstation Series - Maintenance and Service Guide
HP Z440 Workstation slot identication and description
Maximum power used by all slots must not exceed total system power and is subject to conguration
limitations.
Slot Type Mechanical compatibility Electrical compatibility
1 PCIe2 x4 (1) x4 x1
2 PCIe3 x16 x16 x16
3 PCIe2 x8 (4) x8 x4
4 PCIe3 x8 x8 x8
5 PCIe3 x16 x16 x16
6 PCI 32/33 PCI PCI
NOTE: The PCIe designators indicate the mechanical connector size and 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 8 PCIe lanes supported.
Slot two is the primary graphics slot; slot ve is the secondary graphics slot.
Slots one, three, and four 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.
52 Chapter 3 Component replacement information and guidelines