HP Z440, Z640, and Z840 Workstation Series - Maintenance and Service Guide

HP Z840 Workstation DIMM installation order
Install DIMMs in this order.
NOTE: If you install DIMMs of dierent sizes, load them in order of size, starting with largest and nishing
with the smallest (largest in DIMM 1, smallest in last loaded DIMM slot).
68 Chapter 3 Component replacement information and guidelines