HP Z840 Maintenance and Service Guide - Page 62
HP Z440 Workstation slot identification and description, identification
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HP Z440 Workstation slot identification and description Maximum power used by all slots must not exceed total system power and is subject to configuration 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 five 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