IBM 7985 Problem Determination And Service Manual

v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 4, “Parts listing, System x3655, Type 7985 and 7943,” on page 93 to determine whichcomponents are customer replaceable units (CRU) and which components are field replaceable units(FRU).v If an action step is preceded by “(Trained service technician only),” that step must be performed only by atrained service technician.Error code Description Action11xx System board serial port error. 1. Reseat the external cable on the serial port.2. Run the Configuration/Setup Utility program.3. (Trained service technician only) Replace thesystem board.1162 Serial port configuration conflicts. 1. Run the Configuration/Setup Utility program toensure that the IRQ and I/O port assignmentsneeded by the serial port are available.2. If all interrupts are being used by adapters,remove an adapter or force other adapters toshare an interrupt.1200 Processor machine check. 1. Check the system event/error log or BMC log(see “System event/error log messages” on page68).2. (Trained service technician only) Replace thesystem board.1762 Hard disk configuration error. 1. Reseat the hard disk drive.2. Run the Configuration/Setup Utility program andload the defaults.3. Replace the following components one at a time,in the order shown, restarting the server eachtime:a. Hard disk driveb. (Trained service technician only) Systemboard1800 Unavailable PCI hardware interrupt. 1. Run the Configuration/Setup Utility program andadjust the adapter settings.2. Remove each adapter one at a time, restartingthe server each time, until the problem is isolated.32 IBM System x3655 Type 7985 and 7943: Problem Determination and Service Guide