Lenovo IdeaCentre K200 Hardware Maintenance Manual

Also see for IdeaCentre K Series: Hardware Maintenance Manual Hardware Maintenance Manual Hardware Maintenance Manual Hardware Maintenance Manual User guide

Contents

Hardware Maintenance Manual24Beep symptomsBeep symptoms are tones or a series of tones separated by pauses(intervals without sound) during POST.The following tables describes beep symptoms.Beep Symptom FRU/Action1 beepMemory refresh timer errorReseat the memory, or replace withknown good modules.2 beepsParity error in base memory (first64KB block)3 beepsBase memory read/write test error4 beepsMotherboard timer not operationalFatal error indicating a seriousproblem with the system. Consultyour system manufacturer. Beforedeclaring the motherboard beyondall hope, eliminate the possibilityof interference by a malfunctioningadd-in card. Remove all expansioncards except the video adapter.• If beep codes are generatedwhen all other expansion cardsare absent, consult your systemmanufacturer’s technical support.• If beep codes are not generatedwhen all other expansion cardsare absent, one of the add-in cardsis causing the malfunction. Insertthe cards back into the systemone at a time until the problemhappens again. This will reveal themalfunctioning card.5 beepsProcessor error6 beeps8042 Gate A20 test error (cannotswitch to protected mode)7 beepsGeneral exception error (processorexception interrupt error)8 beepsDisplay memory error (system videoadapter)If the system video adapter is anadd-in card, replace or reseat thevideo adapter. If the video adapteris an integrated part of the systemboard, the board may be faulty.