ThinkPad T420 - Checkout Guide; System Supporting the Lenovo Thinkvantage Toolbox Program and the PC-Doctor for DOS Diagnostics Program

Checkoutguide
UsethefollowingproceduresasaguideinidentifyingandcorrectingproblemswiththeThinkPadNotebook.
Note:ThediagnostictestsareintendedtotestonlyThinkPadproducts.Theuseofnon-ThinkPadproducts,
prototypecards,ormodiedoptionscanleadtofalseindicationsoferrorsandinvalidsystemresponses.
1.Identifythefailingsymptomsinasmuchdetailaspossible.
2.Verifythesymptoms.Trytore-createthefailurebyrunningthediagnostictestorbyrepeatingthe
operation.
SystemsupportingtheLenovoThinkVantageToolboxprogramandthe
PC-DoctorforDOSdiagnosticsprogram
ThesectionprovidesinformationaboutThinkPadcomputersthatsupporttheLenovoThinkVantageT oolbox
programandthePC-Doctor
®
forDOSdiagnosticsprogram.Somedescriptionsmightnotapplytoyour
particularcomputer.
DiagnosticsusingPC-DoctorforDOS
TheThinkPadnotebookcomputerhasatestprogramcalledPC-DoctorforDOS(hereaftercalledPC-Doctor.)
YoucandetecterrorsbyrunningthediagnosticstestincludedinPC-Doctor.
Note:
PC-DoctorforDOSisavailableatthefollowingWebsite:
http://www.lenovo.com/support
TocreatethePC-DoctordiagnosticCD,followtheinstructionsontheWebsite.
Forsomepossiblecongurationsofthecomputer,PC-Doctormightnotruncorrectly.Toavoidthisproblem,
youneedtoinitializethecomputersetupbyuseoftheThinkPadSetupprogrambeforeyourunPC-Doctor.
ToentertheThinkPadSetupprogram,doasfollows:
1.Turnonthecomputer.
2.WhentheThinkPadlogocomesup,immediatelypressF1toentertheThinkPadSetupprogram.
Note:Ifasupervisorpasswordhasbeensetbythecustomer,theThinkPadSetupprogrammenuappears
afterthepasswordisentered.Y oucanstarttheThinkPadSetupprogrambypressingEnterinsteadof
enteringthesupervisorpassword;however,youcannotchangetheparametersthatareprotectedbythe
supervisorpassword.
OntheThinkPadSetupprogramscreen,pressF9,Enter,F10,andthenEnter.
Note:Whenyouinitializethecomputerconguration,somedevicesaredisabled,suchastheserialport.If
youtestoneofthesedevices,youwillneedtoenableitbyusingCongurationutilityforDOS.Theutilityis
availableonthefollowingWebsite:
http://www.lenovo.com/support
PC-Doctorcannotbeusedtotestadevicethatisinthedockingstation,evenifthecomputersupportsthe
dockingstation.TotestaUSBdevice,connectittotheUSBconnectorofthecomputer.
Testingthecomputer
Note:ThePC-DoctorforDOSCD-R/CD-RWdiscsupportsonlytestofinternalopticaldiscdrives(CD-RW,
CD-RW/DVDCombo,andDVDMultidrives)onThinkPadcomputers.Itdoesnotsupporttestofanyoptical
discdrivesconnectedthroughUSBdevices,PCcards,CardBuscards,orsimilar.TheUSBlimitationonly
Chapter3.Generalcheckout29
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