RB1GCHASSISW600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A326TroubleshootingTroubleshooting ReferenceBM board Side A (not applicable for this model)Pin 4Pin 3Pin 2Pin 1CN4601L4604L4603L4602L4601Information Not Use