IBM System x3755 M3 7164 Installation And User Manual

Also see for System x3755 M3 7164: Product guide Product guide At-a-glance guide

Contents

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 thelight path button on the system board when the server is not connected to power.v You do not have to turn off the server to install or replace hot-swap powersupplies, hot-swap hard disk drives, hot-swap fans, or hot-plug Universal SerialBus (USB) devices. However, you must turn off the server before you performany steps that involve removing or installing adapter cables.v Blue on a component indicates touch points, where you can grip the componentto remove it from or install it in the server, open or close a latch, and so on.v Orange on a component or an orange label on or near a component indicatesthat the component can be hot-swapped, which means that if the server andoperating system support hot-swap capability, you can remove or install thecomponent while the server is running. (Orange can also indicate touch points onhot-swap components.) See the instructions for removing or installing a specifichot-swap component for any additional procedures that you might have toperform before you remove or install the component.v When you are finished working on the server, reinstall all safety shields, guards,labels, and ground wires.v For a list of supported optional devices for the server, see http://www.ibm.com/servers/eserver/serverproven/compat/us/.A single-power-supply server operating at 100 V or 240 V acOne power supply operating at 100 V or 240 V ac supports a server with minimumtwo-microprocessor configuration, but it does not support power redundancy.System reliability guidelinesTo help ensure proper cooling and system reliability, make sure that the followingrequirements are met:v Each of the drive bays has a drive or an electromagnetic compatibility (EMC)shield installed in it.v If the server has redundant power, each of the power-supply bays has a powersupply or EMC shield installed in it.v There is adequate space around the server to allow the server cooling system towork properly. Leave approximately 50 mm (2.0 in.) of open space around thefront and rear of the server. Do not place objects in front of the fans. For propercooling and airflow, replace the top cover and the fan door before you turn on theserver. Operating the server for extended periods of time (more than 30 minutes)with the fan door removed might damage server components.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 suppliesare connected to 100-240 V ac.v Microprocessor sockets 1 - 4 each always contain either a socket dust cover or amicroprocessor and heat sink.Notes:1. The server automatically shuts down when the top cover is removed. The serverwill not turn on without the top cover installed.2. Hard disk drive temperature sensing is not supported.Chapter 2. Installing optional devices 29