Lenovo System x3250 M4 - Working Inside the Server with the Power on; Handling Static-Sensitive Devices; Removing the Cover

Workinginsidetheserverwiththepoweron
Guidelinestoworkinsidetheserverwiththepoweron.
Attention:Staticelectricitythatisreleasedtointernalservercomponentswhentheserverispowered-on
mightcausetheservertohalt,whichmightresultinthelossofdata.Toavoidthispotentialproblem,
alwaysuseanelectrostatic-dischargewriststraporothergroundingsystemwhenyouworkinsidethe
serverwiththepoweron.
Youmighthavetohavetheserverturnedonwhilethecoverisoff,tolookatsystem-boardLEDsorreplace
hot-swapcomponents.Followtheseguidelineswhenyouworkinsideaserverthatisturnedon:
•Avoidwearingloose-fittingclothingonyourforearms.Buttonlong-sleevedshirtsbeforeworkinginside
theserver;donotwearcufflinkswhileyouareworkinginsidetheserver.
•Donotallowyournecktieorscarftohanginsidetheserver.
•Removejewelry,suchasbracelets,necklaces,rings,andloose-fittingwristwatches.
•Removeitemsfromyourshirtpocket,suchaspensandpencils,thatcouldfallintotheserverasyou
leanoverit.
•Avoiddroppinganymetallicobjects,suchaspaperclips,hairpins,andscrews,intotheserver.
Handlingstatic-sensitivedevices
Usethisinformationtohandlestatic-sensitivedevices.
Attention:Staticelectricitycandamagetheserverandotherelectronicdevices.Toavoiddamage,keep
static-sensitivedevicesintheirstatic-protectivepackagesuntilyouarereadytoinstallthem.
Toreducethepossibilityofdamagefromelectrostaticdischarge,observethefollowingprecautions:
•Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.
•Theuseofagroundingsystemisrecommended.Forexample,wearanelectrostatic-dischargewrist
strap,ifoneisavailable.Alwaysuseanelectrostatic-dischargewriststraporothergroundingsystem
whenworkinginsidetheserverwiththepoweron.
•Handlethedevicecarefully,holdingitbyitsedgesoritsframe.
•Donottouchsolderjoints,pins,orexposedcircuitry.
•Donotleavethedevicewhereotherscanhandleanddamageit.
•Whilethedeviceisstillinitsstatic-protectivepackage,touchittoanunpaintedmetalsurfaceonthe
outsideoftheserverforatleast2seconds.Thisdrainsstaticelectricityfromthepackageandfrom
yourbody.
•Removethedevicefromitspackageandinstallitdirectlyintotheserverwithoutsettingdownthedevice.
Ifitisnecessarytosetdownthedevice,putitbackintoitsstatic-protectivepackage.Donotplacethe
deviceontheservercoveroronametalsurface.
•Takeadditionalcarewhenhandlingdevicesduringcoldweather.Heatingreducesindoorhumidity
andincreasesstaticelectricity.
Removingthecover
Usethisinformationtoremovethecover.
Readthesafetyinformationin“Safety”onpagevand“Installationguidelines”onpage33.
Ifyouarereplacingaservercomponentoranoptionaldeviceintheserver,youneedtoturnofftheserver
andperipheraldevices,anddisconnectthepowercordsandallexternalcables.
Chapter2.Installingoptionaldevices35