Lenovo ThinkServer RD240 - Working Inside the Server with the Power on; Removing the Server Cover

theserver.Operatingtheserverforextendedperiodsoftime(morethan30minutes)withtheserver
coverremovedmightdamageservercomponents.
•Properlyroutethecables.Forsomeoptions,suchasPCIcards,followthecablinginstructionsthatcome
withtheoptionsinadditiontotheinstructionsinthismanual.
•Makesurethatyoureplaceafailingfanwithin48hours.
•Whenreplacingahot-swapdrive,installthenewhot-swapdrivewithintwominutesofremoval.
Workinginsidetheserverwiththepoweron
Attention
Staticelectricitythatisreleasedtointernalservercomponentswhentheserveristurnedonmightcausetheserverto
halt,whichmightresultinthelossofdata.Toavoidthispotentialproblem,alwaysuseanelectrostatic-dischargewrist
straporothergroundingsystemwhenyouworkinsidetheserverwiththepoweron.
Theserversupportshot-swapdevicesandisdesignedtooperatesafelywhileitisturnedonandthecoveris
removed.Followtheseguidelineswhenyouworkinsidetheserverwiththepoweron:
•Avoidwearingloose-ttingclothingonyourforearms.Buttonlong-sleevedshirtsbeforeworkinginside
theserver;donotwearcufflinkswhileyouareworkinginsidetheserver.
•Donotallowyournecktieorscarftohanginsidetheserver.
•Removejewelry,suchasbracelets,necklaces,rings,andloose-ttingwristwatches.
•Removeitemsfromyourshirtpocket,suchaspensandpencils.Theseitemsmightfallintotheserveras
youleanoverit.
•Avoiddroppinganymetallicobjectsintotheserver,suchaspaperclips,hairpins,andscrews.
Removingtheservercover
Attention:Donotopenyourserverorattemptanyrepairbeforereadingandunderstandingthe“Safetyinformation”
onpageiii
and“Guidelines”onpage35.
Thissectionprovidesinstructionsonhowtoremovetheservercover.
Attention:Forpropercoolingandairow,installtheservercoverbeforeturningontheserver.Operatingthe
serverformorethan30minuteswiththeservercoverremovedmightdamageservercomponents.
Toremovetheservercover,dothefollowing:
1.Removeallmediafromthedrives.Then,turnoffallattacheddevicesandtheserver.
2.Disconnectallpowercordsfromelectricaloutlets.
3.Disconnectthepowercord(s),Input/Output(I/O)cables,andallothercablesthatareconnectedto
theserver.
4.Loosenthescrewintherearoftheservercover(1).Then,slidetheservercovertotherearuntilyou
canliftituptocompletelyremoveitfromthechassis(
2).
Chapter7.Installing,removing,orreplacinghardware37