A Single-Power-Supply Server Operating At 100 V Or 240 V Ac; System Reliability Guidelines - IBM System x3755 M3 7164 Installation And User Manual

v Back up all important data before you make changes to disk drives.
v Have a small flat-blade screwdriver available.
v To view the error LEDs on the system board and internal components, press the
v You do not have to turn off the server to install or replace hot-swap power
v Blue on a component indicates touch points, where you can grip the component
v Orange on a component or an orange label on or near a component indicates
v When you are finished working on the server, reinstall all safety shields, guards,
v For a list of supported optional devices for the server, see http://www.ibm.com/

A single-power-supply server operating at 100 V or 240 V ac

One power supply operating at 100 V or 240 V ac supports a server with minimum
two-microprocessor configuration, but it does not support power redundancy.

System reliability guidelines

To help ensure proper cooling and system reliability, make sure that the following
requirements are met:
v Each of the drive bays has a drive or an electromagnetic compatibility (EMC)
v If the server has redundant power, each of the power-supply bays has a power
v There is adequate space around the server to allow the server cooling system to
v You have followed the cabling instructions that come with optional adapters.
v You have replaced a failed fan within 48 hours.
v You have replaced a hot-swap drive within 2 minutes of removal.
v For redundant and hot-swappable power supply operation, the power supplies
v Microprocessor sockets 1 - 4 each always contain either a socket dust cover or a
Notes:
1. The server automatically shuts down when the top cover is removed. The server
2. Hard disk drive temperature sensing is not supported.
light path button on the system board when the server is not connected to power.
supplies, hot-swap hard disk drives, hot-swap fans, or hot-plug Universal Serial
Bus (USB) devices. However, you must turn off the server before you perform
any steps that involve removing or installing adapter cables.
to remove it from or install it in the server, open or close a latch, and so on.
that the component can be hot-swapped, which means that if the server and
operating system support hot-swap capability, you can remove or install the
component while the server is running. (Orange can also indicate touch points on
hot-swap components.) See the instructions for removing or installing a specific
hot-swap component for any additional procedures that you might have to
perform before you remove or install the component.
labels, and ground wires.
servers/eserver/serverproven/compat/us/.
shield installed in it.
supply or EMC shield installed in it.
work properly. Leave approximately 50 mm (2.0 in.) of open space around the
front and rear of the server. Do not place objects in front of the fans. For proper
cooling and airflow, replace the top cover and the fan door before you turn on the
server. Operating the server for extended periods of time (more than 30 minutes)
with the fan door removed might damage server components.
are connected to 100-240 V ac.
microprocessor and heat sink.
will not turn on without the top cover installed.
Chapter 2. Installing optional devices
29