Lenovo ThinkServer RD640 - Handling Static-Sensitive Devices

•Haveasmallflat-bladescrewdriveravailable.
•Youdonothavetoturnofftheservertoinstallorreplaceahot-swapredundantpowersupply,hot-swap
harddiskdrives,orhot-plugUSBdevices.However,youmustturnofftheserverbeforeperforming
anystepsthatinvolveinstalling,removing,orreplacingadaptercablesornon-hot-swapdevicesor
components.
•ToviewtheLEDsonthesystemboardandinternalcomponents,leavetheserverconnectedtopower.
•Whenyouarefinishedworkingontheserver,reinstallallsafetyshields,guards,labels,andgroundwires.
Handlingstatic-sensitivedevices
Attention:Donotopenthestatic-protectivepackagethatcontainsthenewpartuntilthedefectiveparthasbeen
removedfromtheserverandyouarereadytoinstallthenewpart.Staticelectricity,althoughharmlesstoyou,
canseriouslydamageservercomponentsandparts.
Whenyouhandleserverpartsandcomponents,taketheseprecautionstoavoidstatic-electricitydamage:
•Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.
•Theuseofagroundingsystemisrecommended.Forexample,itisrecommendedtowearanelectrostatic
discharge(ESD)wriststrap,ifoneisavailable.EnsurethatyouworkinanESD-safearea.
•Alwayscarefullyhandlethepartsandothercomponents(suchasPCIcards,memorymodules,system
boards,andmicroprocessors)byedgesorframe.Donottouchsolderjoints,pins,orexposedcircuitry.
•Donotleavethedevicewhereotherscanhandleandpossiblydamagethedevice.
•Beforeyoureplaceanewpart,touchthestatic-protectivepackagecontainingthenewparttoan
unpaintedmetalpartoftheserverforatleasttwoseconds.Thisreducesstaticelectricityfromthe
packageandyourbody.
•Removethenewpartfromthestatic-protectivepackageanddirectlyinstallitintheserverwithout
placingitonanyothersurface.Ifitishardforyoutodothisinyourspecificsituation,placethe
static-protectivepackageofthenewpartonasmooth,levelsurface,andthenplacethenewparton
thestatic-protectivepackage.
•Donotplacethepartontheservercoverorothermetalsurface.
•Takeadditionalcarewhenhandlingdevicesduringcoldweather.Heatingreducesindoorhumidity
andincreasesstaticelectricity.
Systemreliabilityguidelines
Tohelpensurepropercoolingandsystemreliability,strictlyfollowtheseguidelines:
•Eachofthedrivebayshasadriveoradummytrayinstalled;orthereisanelectromagneticinterface(EMI)
protectivepanelorEMIshieldinstalledtoprotectthedrivecage.
•Iftheserversupportshot-swapredundantpowersupplies,eachofthepowersupplybayhasaredundant
powersupplyinstalled,oronebayhasaredundantpowersupplyinstalledwhiletheotherbayiscovered
byashield.
•Leaveadequatespacearoundtheservertoensurethattheservercoolingsystemworkswell.Leave
approximately50mm(2inches)ofopenspacearoundthefrontandrearoftheserver.Donotplace
objectsinfrontofthefans.Forpropercoolingandairflow,installtheservercoverbeforeyouturnon
theserver.Operatingtheserverforextendedperiodsoftime(morethan30minutes)withtheserver
coverremovedmightdamageservercomponents.
•Properlyroutethecables.Forsomeoptions,suchasPCIcards,followthecablinginstructionsthatcome
withtheoptionsinadditiontotheinstructionsinthismanual.
•Whenreplacingahot-swapdrive,installthenewhot-swapdrivewithintwominutesofremoval.
76ThinkServerRD640UserGuideandHardwareMaintenanceManual