
Keyboard/Mouse
USB or PS/2
Power Supply
Power Supply
600W 90% Efficient, Custom PSU
(Wide Ranging, Active PFC)
Operating Voltage Range
90–269 VAC
Rated Voltage Range
100–240 V
118 V
Rated Line Frequency
50–60 Hz
400 Hz
Operating Line Frequency Range
47–66 Hz
393-407 Hz
Rated Input Current
100–240 V @ 8.0 A
118 V @ 8.0 A
Heat Dissipation
Typical: 1365btu/hr (344 kg-cal/hr)
Maximum: 2354btu/hr (593 kg-cal/hr)
Power Supply Fan
92x25 mm variable speed
ENERGY STAR Qualified
(Configuration dependent)
Yes
80 PLUS® Compliant
Yes, 90% Efficient
The Z420 600W power supply efficiency report can be found at this link:
TBD
FEMP Standby Power Compliant @115V (Wake-on
LAN disabled) (<2W in S5 - Power Off)
Yes
EuP Compliant @ 230V
(<1 W in S5 - Power Off)
Yes
CECP Compliant @ 220V
(<4W in S3 - Suspend to RAM)
Yes; Configuration dependent
Power Consumption in sleep mode (as defined by
ENERGY STAR) - Suspend to RAM (S3) (Instantly
Available PC) measured at 115V.
<10W
Built-in Self Test LED
Yes
Surge Tolerant Full Ranging Power Supply
(withstands power surges up to 2000V)
Yes
Hood Lock Header
Yes
Hood Sensor Header
Yes
Memory Fan
1 Memory Fan Header
QuickSpecs
HP Z420 Workstation
System Technical Specifications
DA - 14261 Worldwide — Version 10 — September 1, 2012
Page 17
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