IBM 704 User Manual
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Padlock Loops:
The two side cover padlock loops enable you to
insert padlocks (not provided) to secure the side covers to the
system unit.
The electro-magnetic interference (EMI) door on the front of the
server also has a padlock loop. You can insert a small padlock
(not included) through this loop to secure the EMI door to the
system unit and help prevent unauthorized access to the hard
disk drives in the hot-swap bays.
Power Supplies:
All PC Server 704 models support three
420-watt power supplies. In a three-supply system, the third
power supply provides redundant power.
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CAUTION:
Power supplies are easy to install and remove, but they
are not hot-swappable. Always disconnect all server
power cords and all power supply power cords before
you remove or install a power supply.
Power-Good Light
and Current-Good Light: These green lights
provide status information about the power supply, as follows:
Power-Good Light (PS)
Current-Good Light (I)
Description
On
On
Power supply on and
OK
Off
Off or On
Power supply failure
On
Off
Current limit
Note: To ensure that the power supply is operational, both lights must be on.
Chapter 1. Introducing the PC Server 704
13