v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See Chapter 3, “Parts listing, System x3800 Type 8866,” on page 107 to determine which components arecustomer 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 Action166-201-007 ISMP indicates I2C errors on bus M0. 1. Reseat the following components:a. Memory cardb. I/O boardc. Microprocessor tray2. Replace the following components one at a time,in the order shown, restarting the server eachtime:a. Memory cardb. I/O boardc. (Trained service technician only)Microprocessor tray166-201-008 ISMP indicates I2C errors on bus M1. 1. Reseat the following components:a. Memory cardb. I/O boardc. Microprocessor tray2. Replace the following components one at a time,in the order shown, restarting the server eachtime:a. Memory cardb. I/O boardc. (Trained service technician only)Microprocessor tray166-260-000 ASM restart failure. 1. Disconnect all server and option power cordsfrom the server, wait 30 seconds, reconnect thepower cords, and retry.2. Reseat the Remote Supervisor Adapter IISlimLine.3. Replace the Remote Supervisor Adapter IISlimLine.166-342-000 System management BIST indicates failedtests. 1. Disconnect all server and option power cordsfrom the server, wait 30 seconds, reconnect thepower cords, and retry.2. Reseat the Remote Supervisor Adapter IISlimLine.3. Replace the Remote Supervisor Adapter IISlimLine.166-400-000 ISMP Self Test Result failed tests: xxxwhere xxx=flash, ROM, or RAM. 1. Disconnect all server and option power cordsfrom the server, wait 30 seconds, reconnect thepower cords, and retry.2. Update the BMC firmware (see “Updating thefirmware” on page 157).3. Reseat the I/O board.4. Replace the I/O board.72 IBM System x3800 Type 8866: Problem Determination and Service Guide