914285-001 HP MOTHERBOARD FOR HP Z4 G4 WORKSTATION - SYSTEM BOARD COMPATIBLE WITH INTEL XEON W SERIES ( 1 ) ONE CPU SOCKET ( 8 ) EIGHT DIMM SLOTS ( 2 )
914283-001 HP Z6 G4 Workstation System Board
Used HP Z4 G4 Workstation Motherboard LGA2066 8 Memory slots 844783-001 914285-001 914285-601 L31850-601 L31700-001 - Walmart.com
HP Z4 G4 Review / A best seller Workstation - YouTube
HP Z4 G4 Workstation Motherboard LGA2066 For Intel Core X Serie L09990-001 L12125-001 L12125-601 - Newegg.com