Lenovo ThinkServer sd350 - Page 62

00000000
HDD
status
LED
System
error
LED
Power
LED
ID
LED
Figure13.TheLEDsonthesystemboard
TheserverisdesignedsothatLEDsremainlitwhentheserverisconnectedtoanacpowersourcebutis
notturnedon,providedthatthepowersupplyisoperatingcorrectly.Thisfeaturehelpsyoutoisolatethe
problemwhentheoperatingsystemisshutdown.
Note:Whenyoudisconnectthepowersourcefromtheserver,youlosetheabilitytoviewtheLEDsbecause
theLEDsarenotlitwhenthepowersourceisremoved.Beforeyoudisconnectthepowersource,make
anoteofwhichLEDsarelit,includingtheLEDsthatarelitontheoperationinformationpanelandLEDs
insidetheserveronthesystemboard.
46LenovoThinkServersd350ServerType5493,LenovoThinkServern400EnclosureType5495InstallationandServiceGuide