HP Z840 Maintenance and Service Guide - Page 66
HP Z840 Workstation slot identification and description
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HP Z840 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 1 PCIe3 x4 2 PCIe3 x16 3 PCIe3 x8 4 PCIe3 x16 5 PCIe2 x8 5 PCIe3 x8 (CPU1) 6 PCIe3 x16 7 PCIe2 x1 Mechanical compatibility x4 x16 x8 x16 x8 x8 x16 x1 Electrical compatibility x4 x16 x8 x16 x4 x8 x16 x1 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 one and five use open-ended PCIe connectors, so a PCIe x16 card can be inserted. This allows the workstation to support more PCIe x16 expansion cards. An 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. NOTE: A eighth slot opening in the chassis has no corresponding expansion connector on the system board. This slot opening is provided for devices that do not require system board plug-in capability. NOTE: It is normal for the expansion card retention clamp to have a slight (5-10 degree) angle when closed. If the angle is greater than this, open the clamp and ensure that all cards are properly seated and all the brackets are mated to the chassis, and then re-close the clamp. 56 Chapter 3 Component replacement information and guidelines