IBM X3850 X6, Инструкция по установке и обслуживанию

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Installing a 750-watt -48 volt to -60 volt dc power supply
Use this information for considerations that you need note when you install
750-watt -48 volt to -60 volt dc power supplies and the instructions for installing
the 750-watt -48 volt to -60 dc power supplies in the server.
About this task
Note:
v
This information apply to both the 4-socket and 8-socket servers.
v Four 750-watt -48 dc power supplies is the only 750-watt -48 volt dc power
supply configuration that the server supports (per 4-socket node).
v
Four 750-watt hot-swap power supplies fed from a -48 volt to -60 volt dc input
source provides N+N redundancy support for limited configurations.
v
For more notes and information that you must consider when you install power
supplies in the server, see “Installing power supplies” on page 104.
The following notes provides information that you must consider when you install
a 750-watt -48 V to -60 V dc power supply. To confirm that the server supports the
power supply that you are installing, see http://www.ibm.com/systems/info/
x86servers/serverproven/compat/us/.
Attention:
v
Only trained service technicians, other than IBM service technicians, are
authorized to install and remove the 750-watt -48 V to -60 V dc power supply,
and make connections to or disconnections from the 750-watt -48 V to -60 V dc
power source.
v
IBM service technicians are not certified or authorized to install or remove the
750-watt -48 V to -60 V dc power cable. You are responsible for ensuring that
only a trained service technician install or remove the 750-watt -48 V to -60 V dc
power cable.
v
You can install up to four dc power supplies (per 4-socket node) or four ac
power supplies (per 4-socket node) in the server, but you cannot mix dc and ac
power supplies in the same server.
v The power supply bays are divided into two power domains (each 4-socket
node). Power supply bays 1 and 3 are in power domain A and power supply
bays 2 and 4 are in power domain B.
v
To reduce the risk of electric shock or energy hazards when installing the
750-watt -48 V to -60 V dc power supplies, take the following steps:
– Use a circuit breaker that is rated 40 amps.
– Use 4 mm2 (10 AWG) at 60° C copper wire.
– Cut the power cable wires to the correct length, but do not cut the wires
shorter than 150 mm (6 inches).
– Torque the wiring-terminal screws to 0.50 ~ 0.60 newton-meters (4.43 ~ 5.31
inch-pounds).
Statement 8
106
System x3850 X6 and x3950 X6 Types 3837 and 3839: Installation and Service Guide