Quick Specs

Front PCI Fan Header 2 Front PCI Fan Headers
Front Control Panel/Speaker
Header
Yes
CMOS Battery Holder - Lithium Yes
Power Supply Headers Yes
Power Switch, Power LED & Hard
Drive LED Header
Front power switch, front power and hard drive LED. Rear power switch and rear power LED. Drive
LED header on system board.
Clear Password Jumper Yes
Serial Port Yes, on rear panel
Parallel Port No
Keyboard/Mouse Yes
Power Supply 850W 88% Efficient, Custom PSU
(Wide-Ranging, Active PFC)
1125W/1275W*/1450W*
90% Efficient, Custom PSU
(Wide-Ranging, Active PFC)
Operating Voltage Range 90–269 VAC 90–269 VAC
Rated Voltage Range 100-127 VAC
200-240 VAC
118 VAC 100 VAC
115-127 VAC
200-240 VAC
118 VAC
Rated Line Frequency 50-60 Hz 400 Hz 50–60 Hz 400 Hz
Operating Line Frequency
Range
47-66 Hz 393-407 Hz 47–66 Hz 393-407 Hz
Rated Input Current 11A @ 100-127 VAC
5.5A @ 200-240 VAC
11A @ 118 VAC 12A @ 100 VAC
12A @ 115-127 VAC
10A @ 200-240 VAC
12A @ 118 VAC
Heat Dissipation
(Configuration and
software dependent)
Typical = 2142 btu/hr (540kg-cal/hr)
Max = 3335 btu/hr (840 kg-cal/hr)
Typical = 2773 btu/hr (699 kg-cal/hr)
Max-1 = 3878 btu/hr (977 kg-cal/hr)
Max-2 = 5002 btu/hr (1260 kg-cal/hr)
Max-3 = 5624 btu/hr (1417 kg-cal/hr)
Power Supply Fan (2) 80x25 mm variable speed (2) 80x25 mm variable speed
ENERGY STAR Qualified
(Configuration
dependent)
Yes Yes
80 PLUS® Compliant 88% Efficient
The Z840 850W power supply efficiency report can
be found at this link: TBD
90% Efficient
The Z840 1125W power supply efficiency report
can be found at this link: TBD
FEMP Standby Power
Compliant @115V
(<2W in S5 - Power Off)
Yes Yes
EuP Compliant @ 230V
(<0.5 W in S5 - Power Off)
Yes Yes
CECP Compliant @ 220V
(<4W in S3 - Suspend to
RAM)
Yes; Configuration dependent Yes; Configuration dependent
QuickSpecs
HP Z840 Workstation
System Technical Specifications
DA - 15098 Worldwide QuickSpecs — Version 3 — 11/1/2014 Page 19