What are the two power supply options for HP Z440 workstations? seenagape 10 years ago What are the two power supply options for HP Z440 workstations? A.1225W 99% efficient or 1500W 70% efficient B.100W 99% efficient or 200W 70% efficient C.225W 85% efficient or 500@ 90% efficient D.525W 85% efficient or 700W 90% efficient ← Previous question Next question →