![](http://pdfasset.owneriq.net/5/c8/5c8faa62-5802-4706-aa73-c41ac3b19ddb/5c8faa62-5802-4706-aa73-c41ac3b19ddb-bg20.png)
HP Z420 Workstation system board architecture
Figure 1-15 HP Z420 Workstation system board block diagram
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.
20 Chapter 1 Hardware overview