Power Consumption And Heat Dissipation; Resetting The Power Supply; System Board; Diagnostics And Troubleshooting On - HP Z440 Workstation Series Maintenance And Service Manual

Power consumption and heat dissipation

Power consumption and heat dissipation specifications are available for multiple configurations. To review
available specifications, see http://www.hp.com/go/quickspecs.
To reach zero power consumption, unplug the workstation from the power outlet or use a power strip with an
on/off switch. For additional information about power-saving features, see the operating system installation
instructions.
This product is in compliance with U.S. Executive Order 13221.

Resetting the power supply

If an overload triggers the power supply overload protection, power is immediately disconnected.
To reset the power supply:
1. Disconnect the power cord from the workstation.
2. Determine what caused the overload and fix the problem. For troubleshooting information, see
Diagnostics and troubleshooting on page
3. Reconnect the power cord and restart the workstation.
When you power off the workstation through the operating system, power consumption falls below what is
considered low power consumption but does not reach zero. This low power consumption feature extends
the life of the power supply.

System board

If you replace the system board:
●
Make a note of the cable connections before disconnecting them from the system board.
●
Follow good cable management practices. See
The following tables show system cabling for the workstations.
72 Chapter 3 Component replacement information and guidelines
76.
Cable management on page 49.