HP Z840 Maintenance and Service Guide - Page 64

HP Z640 Workstation slot identification and description Maximum power used by all slots must not exceed total system power and is subject to configuration limitations. NOTE: Slot 1 is not available in dual processor configurations. Slot Type Mechanical compatibility 1 PCIe2 x4 (1) x4 2 PCIe3 x16 x16 3 PCIe2 x8 (4) x8 4 PCIe3 x8 x8 5 PCIe3 x16 x16 6 PCI 32/33 PCI Electrical compatibility x1 x16 x4 x8 x16 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 an x16 length connector, with 8 PCIe lanes supported. NOTE: Slots two, four, and five are PCIe GEN3 slots. Slot two is the primary graphics slot; slot five is the secondary graphics slot. Slots three and four use open-ended PCIe connectors, so a PCIe x16 card can be inserted. This allows the workstation to support more PCIe x16 expansion cards. A x16 card typically trains and runs at the maximum lane width available by the expansion slot. The card runs at the reduced lane width, with a corresponding performance decrease. Graphics cards greater than 75 watts require the use of an auxiliary power cable adapter. HP Z640 Workstation installation sequence recommendations Load order 1 2 Card description Second System Board (Riser) First PCIe graphic card Slot 1 Only Slot 2 Only Slot 3 Slot 4 Slot 5 Slot 6 54 Chapter 3 Component replacement information and guidelines