Actions:
•Verifythatallcablesandcordsaresecurelyconnectedtothecomputerandattacheddevices.
•Verifythatwhenthecomputerison,thefangrillisnotblocked(thereisairowaroundthegrill),andthe
fansareworking.Ifairowisblockedorthefansarenotworking,thecomputermightoverheat.
Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“LenovoSolutionCenter”on
page52forinstructions).Ifyouneedtechnicalassistance,see“Additionalinformationresources”onpage32.
Harddiskdriveproblems
Selectyoursymptomfromthefollowinglist:
•“SomeorallharddiskdrivesmissingfromtheSetupUtilityprogram”onpage41
•“"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrectharddiskdrive”
onpage41
SomeorallharddiskdrivesmissingfromtheSetupUtilityprogram
Symptom:SomeorallharddiskdrivesmissingfromtheSetupUtilityprogram
Actions:
•Ensurethatallharddiskdrivesignalcablesandpowercablesareconnectedcorrectly.Forcomputer
models2551,2552,2553,2554,and2555,see“Replacingtheprimaryharddiskdrive”onpage104.For
computermodels3688,3690,3691,3693,and3695,see“Replacingtheharddiskdrive”onpage135.
•Ensurethatyourcomputerisconguredcorrectlytosupporttheharddiskdrives.
–IfyourcomputerisinstalledwithveSATAharddiskdrives,ensurethattheSATAharddiskdrive
enablementmodule(onetoveharddiskdrives)isinstalled.
–IfyourcomputerisinstalledwithSASharddiskdrives,ensurethattheSASharddiskdriveenablement
module(onetoveharddiskdrives)ortheLSIMegaRAIDSASadapterisinstalled.
Iftheseactionsdonotcorrecttheproblem,runthediagnosticprogramLenovoSolutionCenter.See
“LenovoSolutionCenter”onpage52.Ifyouneedtechnicalassistance,see“Additionalinformation
resources”onpage32.
"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrect
harddiskdrive
Symptom:"NoOperatingSystemFound"messageorthesystemnotstartingfromthecorrectharddiskdrive
Actions:
•Ensurethatallharddiskdrivesignalcablesandpowercablesareconnectedcorrectly.Forcomputer
models2551,2552,2553,2554,and2555,see“Replacingtheprimaryharddiskdrive”onpage104.For
computermodels3688,3690,3691,3693,and3695,see“Replacingtheharddiskdrive”onpage135.
•EnsurethattheharddiskdriveyourcomputerstartsfromislistedastherststartupdeviceintheSetup
Utilityprogram.Referto“Selectingastartupdevice”onpage56.
•IfyouareusingRAID,ensurethatyouhaveconguredtheharddiskdrivescorrectly.RefertoChapter7
“ConguringRAID”onpage59.
Note:Inrarecases,theharddiskdrivewiththeoperatingsystemmightgetcorruptedordamaged.Insuch
cases,youmightneedtoreplacetheharddiskdrive.Forcomputermodels2551,2552,2553,2554,and
2555,see“Replacingtheprimaryharddiskdrive”onpage104.Forcomputermodels3688,3690,3691,
3693,and3695,see“Replacingtheharddiskdrive”onpage135.
Chapter5.Troubleshootinganddiagnostics41