User manual

1-16
Chapter 1: Product Introduction
2. Overclocking Jack (8-1 pin OCJ)
ThesejumperssupporttheoverclockingfeaturesReTry,SafeBootandSlowMode.
Short-circuitthecorrespondingpinswithametalobjectorjumpercapforabout5-10
seconds to use its function.
• ReTry
ReTryisusedduringthebootingprocesswheretheResetbuttonisrendereduseless.
Itforcesthesystemtorebootwhileretainingthesamesettingstoberetriedinquick
successiontoachieveasuccessfulPOST.
• SafeBoot
SafeBootisusedtoforcethesystemtorebootintotheBIOSsafemode.Ittemporarily
appliessafesettingstotheBIOSwhileretaininganyoverclockedsettingsallowingyou
to modify the settings causing boot failure.
• SlowMode
SlowModeisemployedduringLN2benching.Someprocessorshaveasmalloptimum
temperaturerangetorunattheirhighestfrequency.Temperaturesthatfalloutsidethis
bandmayyieldinstability.Forexample,aprocessormayneedtooperateat-80°C
underloadandonly75°Cwhenidletomaintainstabilityat5GHz.
Atlowerfrequencies,theCPU’stemperaturetoleranceincreases.Itwillhowever
remainstableatlowerfrequenciesatmuchcolderorwarmertemperatures.Once
itcomesoutofaheavyloadwhiletransitioningovertoalightload,whenthe
temperaturedoesnotwarmfastenough,itmaycrash.Toovercomethis,simplyshort
the2-pinstodecreasetheprocessorfrequency.SwitchingovertoSlow-Modeduring
criticalmomentswhenTemperature/MaxFrequencyalignmentisoff-synccanprevent
alotofcrashes,evenwhentryingtobootintotheOSatcoldtemperatures.