Lenovo x3550 M5 - Serial-Device Problems

Table18.Powerproblemsandactions(continued)
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly),”thatstepmustbeperformedonlybyatrained
technician.
•GototheSupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,tips,
andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Pwrrail7errorhasbeen
recordedinthesystemevent
log.
1.Disconnecttheserverpowercords.
2.RemovethefollowingcomponentsifthePwrrail7errorhasbeenrecordedin
thesystemeventlog:
•Fan1
•Fan2
3.Restarttheserver.IfthePwrrail6errorhasbeenrecordedinthesystemevent
logagain,(trainedtechnicianonly)replacethesystemboard(see“Removingthe
systemboard”onpage268and“Replacingthesystemboard”onpage271).
4.Reinstallthecomponentsoneatatime,intheordershown,restartingthe
servereachtime.IfthePwrRail6errorhasbeenrecordedinthesystemevent
logagain,thecomponentthatyoujustreinstalledisdefective.Replacethe
defectivecomponent.
•Fan1(see“Removingathermalkit(hot-swapfan)”onpage191
and
“Replacingathermalkit(hot-swapfan)”onpage192).
•Fan2
Theserverdoesnotturnoff.
1.DeterminewhetheryouareusinganAdvancedConfigurationandPower
Interface(ACPI)oranon-ACPIoperatingsystem.Ifyouareusinganon-ACPI
operatingsystem,completethefollowingsteps:
a.PressCtrl+Alt+Delete.
b.Turnofftheserverbypressingthepower-controlbuttonandholditdownfor
5seconds.
c.Restarttheserver.
d.IftheserverfailsPOSTandthepower-controlbuttondoesnotwork,
disconnectthepowercordfor20seconds;then,reconnectthepowercord
andrestarttheserver.
2.IftheproblemremainsorifyouareusinganACPI-awareoperatingsystem,
suspectthesystemboard.
Theserverunexpectedlyshuts
down,andtheLEDsonthe
operatorinformationpanelare
notlit.
See“Solvingundeterminedproblems”onpage90.
Serial-deviceproblems
Usethisinformationtosolveserial-deviceproblems.
Chapter3.Troubleshooting85