Error LEDsThe following illustration shows the system-board LEDs. The system board haserror LEDs that will help to locate the source of the error. Run the diagnosticprograms to find out the cause of the error (see “Running the diagnostic programs”on page 156).Slot 5, PCI 32-bit 33 MHz LEDSlot 4, PCI 32-bit 33 MHz LEDSlot 3, PCI-X 64-bit 133 MHz LEDSlot 2, PCI Express x4 LEDSlot 1, PCI Express x8 LEDStandby power LEDMicroprocessorfan LED DIMM 1LEDDIMM 2LEDDIMM 3LEDDIMM 4LEDSystem fan LEDHard drivefan LEDMini-PCI slotLEDMicroprocessor LEDBoard VRD fault LEDMini-BMCheartbeat LEDThe server is designed so that LEDs remain lit when the server is connected to anac power source but is not turned on, provided that the power supply is operatingcorrectly. This feature helps you to isolate the problem when the operating systemis shut down.Many errors are first indicated by a lit system-error LED on the front-panelassembly of the server. If this LED is lit, one or more LEDs elsewhere in the servermight also be lit and can direct you to the source of the error.Important: If the system-error LED on the front of the server is lit but there are noother error indications, clear the BMC system-event log. This log does not clearitself, and if it begins to fill up, the system-error LED will be lit. Also, after youcomplete a repair or correct an error, clear the BMC system-event log to turn off thesystem-error LED on the front of the server.Before you work inside the server to view the LEDs, read the safety information thatbegins on page vii and “Handling static-sensitive devices” on page 50.If an error occurs, view the server LEDs in the following order:152 System x3200 M2 Types 4367 and 4368: Problem Determination and Service Guide
