HP Z400 Workstation (6 DIMM Slots) 4GB RAM Memory Upgrade
Solved: Z400 RAM - HP Support Community - 6148900
CMS 8GB (2X4GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z400 Workstation for Server Only - B80
Does this memory fits in a workstation Z 400 - HP Support Community - 6029224
Solved: Z400 RAM - HP Support Community - 8063449
8GB Kit [2x4GB] 1RAM Memory Upgrade for Compaq HP Workstation Z400 | eBay
Solved: Z400 Aftermarket Upgrades - HP Support Community - 5691838