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

12 Hard disk drive LED 27 Front fan 2 (bottom)
NOTE: For related expansion card
slot information, see
Expansion slots
on page 80.
13 SAS/SATA 6Gb/s 28 Liquid cooling 0 power
14 SAS (optional) 29 Liquid cooling 1 power
15 SCU 3Gb/s 30 Rear chassis fans
HP Z820 Workstation system board architecture
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.
34 Chapter 1 Hardware overview