Lenovo ThinkServer RD240 - Handling Static-Sensitive Devices; System Reliability Guidelines

•Makesurethatyouhaveanadequatenumberofproperlygroundedelectricaloutletsfortheserver,
monitor,andotherdevices.
•Backupallimportantdatabeforeyoumakechangestodrives.
•Haveasmallat-bladescrewdriveravailable.
•Youdonothavetoturnofftheservertoinstallorreplaceahot-swapredundantpowersupplymodule,
hot-swapharddiskdrives,orhot-plugUSBdevices.However,youmustturnofftheserverbefore
performinganystepsthatinvolveinstalling,removing,orreplacingadaptercablesornon-hot-swap
devicesorcomponents.
•ToviewtheLEDsonthesystemboardandinternalcomponents,leavetheserverconnectedtopower.
•Whenyouarenishedworkingontheserver,reinstallallsafetyshields,guards,labels,andgroundwires.
•Whenworkinginsidetheserver,youmightndsometaskseasierifyoulaytheserveronitsside.
Handlingstatic-sensitivedevices
Attention
Donotopenthestatic-protectivepackagecontainingthenewpartuntilthedefectiveparthasbeenremovedfromthe
serverandyouarereadytoinstallthenewpart.Staticelectricity,althoughharmlesstoyou,canseriouslydamage
servercomponentsandparts.
Whenyouhandleserverpartsandcomponents,taketheseprecautionstoavoidstatic-electricitydamage:
•Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.
•Wearanelectrostatic-dischargewriststrap,ifoneisavailable.
•Alwayscarefullyhandlethepartsandothercomponents(suchasPCIcards,memorymodules,system
boards,andmicroprocessors)byitsedgesoritsframe.Donottouchsolderjoints,pins,orexposed
circuitry.
•Preventothersfromtouchingthepartsandothercomputercomponents.
•Beforeyoureplaceanewpart,touchthestatic-protectivepackagecontainingthenewparttoametal
expansion-slotcoverorotherunpaintedmetalsurfaceontheserverforatleasttwoseconds.This
reducesstaticelectricityfromthepackageandyourbody.
•Removethenewpartfromthestatic-protectivepackageanddirectlyinstallitintheserverwithout
placingitonanyothersurface.Ifitishardforyoutodothisinyourspecicsituation,placethe
static-protectivepackageofthenewpartonasmooth,levelsurface,andthenplacethenewparton
thestatic-protectivepackage.
•Donotplacethepartontheservercoverorothermetalsurface.
•Takeadditionalcarewhenhandlingdevicesduringcoldweather.Heatingreducesindoorhumidity
andincreasesstaticelectricity.
Systemreliabilityguidelines
Tohelpensurepropercoolingandsystemreliability,makesurethatyoufollowtheseguidelines:
•Eachofthedrivebayshasadriveoradummytrayinstalled;orthereisanelectromagneticinterface(EMI)
protectivepanelorEMIshieldinstalledtoprotectthedrivecage.
•Iftheserverhasredundantpower,eachofthepowersupplymodulebayhasaredundantpowersupply
moduleinstalled,oronebayhasamodulewhiletheotherbayiscoveredbyashield.
•Leaveadequatespacearoundtheservertomakesurethattheservercoolingsystemworkswell.Leave
approximately50mm(2inches)ofopenspacearoundthefrontandrearoftheserver.Donotplace
objectsinfrontofthefans.Forpropercoolingandairow,installtheservercoverbeforeyouturnon
36ThinkServerRD240HardwareMaintenanceManual