Oracle SPARC T8-4, Installation Manual

Page: 66 / 92

Connect the Chassis Ground Wire
Caution -
Do not attach power cables to the power supplies until you have connected the server
to a serial terminal or a terminal emulator (PC or workstation). The server goes into Standby
mode and the Oracle ILOM SP initializes as soon as a power cable connects a power supply
to an external power source. System messages might be lost after 60 seconds if a terminal or
terminal emulator is not connected to the SER MGT port before power is applied.
Note -
Oracle ILOM will signal a fault if all four power supplies are not cabled at the same
time, since it will be a nonredundant condition. Do not be concerned with this fault in this
situation.
Route the power cords from the AC power source to the rear of the server.
Do not attach the power cords to the power supplies at this time.
Related Information
■
“Rear Panel Components” on page 15
■
“Connect the Chassis Ground Wire” on page 66
■
“Power on the Server for the First Time” on page 69
Connect the Chassis Ground Wire
This procedure is optional for servers with AC input power. It is acceptable to ground the server
through the supplies and chassis ground wire.
Caution -
The server chassis must be grounded with the power supply ground pins or with the
chassis ground holes. It is acceptable to have both grounds connected.
1. Obtain a grounding lug (two-hole, long flared barrel, #6 AWG wire, ¼ inch stud
hole, 5/8 inch hole spacing, NEMA hole sizes and spacing, 45° angle tongue) and
two M5 screws.
The grounding lug and screws must be supplied by the customer. The grounding lug should be a
two-hole, 1/4" stud hole, with 5/8" hole spacing.
66 SPARC T8-4 Server Installation Guide • September 2017