HN440 USER’S GUIDE
3 2 I n s t a l l a t i o n
Connecting to AC power
Important
Any equipment that requires an AC power cord must be
earthed.
Use the following guidance to connect the components of the
system together. It is important that you take each step in the
order indicated.
1.
Before connecting any components, ensure that the AC
power supply is switched off or disconnected, and that
the system unit, the monitor and any peripherals are
turned off.
2.
Connect the component’s signal cables to their
respective ports on the system unit: keyboard, mouse,
monitor, audio (where appropriate) and any other
peripherals.
3.
Connect the component’s power cords: monitor to
system unit (if the PSU has a pass-though AC port), and
system unit and any other peripherals to nearby,
grounded AC power outlets.
4.
Turn on the system unit first, then the monitor, then
other peripherals.
Turning the system on and off
The following instructions apply if you are using a logic-
controlled PSU and an operating system that supports the
Advanced Configuration & Power Interface (ACPI):
To turn on the system, press the Power button. The
Power LED lights steadily green.
To suspend the system, press the Power button again.
(The Power LED may turn yellow, if a two-colour LED
is fitted.) Press the Power button once more to resume
the system.
To turn off the system, shut down the operating system.
If this is not possible, press and hold the Power button
for at least four seconds. The Power LED goes out.