HP Z220 SFF, Z220 CMT, Z420, Z620, and Z820 Workstations Maintenance and Service Guide

HP Z820 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 PCIe3 x8 (4) — CPU0 x8 x4
2 PCIe3 x16 — CPU0 x16 x16
3 PCIe3 x16 (8) — CPU1 x16 x8
4 PCIe3 x16 — CPU1 x16 x16
5 PCIe2 x8 (4) — CPU0 x8 x4
6 PCIe3 x16 — CPU0 x16 x16
7 PCI 32/33 — CPU0 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.
NOTE: Slots one and five use open-ended PCIe connectors, so a PCIe x16 card can 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.
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 card 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, then re-close the clamp.
Component replacement guidelines 89