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 x3500 Type 7977,” on page 41 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 Action166-198-000 BIOS cannot detect ASM. Reseat ASMadapter in correct slot; ASM restart failure.Unplug and cold boot server to reset ASM.1. Run the diagnostic test again.2. Correct other error conditions (including otherfailed systems-management tests and items thatare logged in the Remote Supervisor Adapter IISlimLine system-error log) and retry.3. Disconnect all server and device power cordsfrom the server, wait 30 seconds, reconnect thepower cords, and retry.4. Reseat the Remote Supervisor Adapter IISlimLine.5. Replace the following components one at a time,in the order shown, restarting the server eachtime.a. Remote Supervisor Adapter II SlimLineb. (Trained service technician only) Systemboard166-201-000 ISMP indicates I2C errors on bus X. (Trained service technician only) Replace the systemboard.166-201-001 ISMP indicates I2C errors on bus P. 1. (Trained service technician only) Reseat thepower backplane.2. Replace the following components one at a time,in the order shown, restarting the server eachtime:a. (Trained service technician only) Powerbackplaneb. (Trained service technician only) Systemboard166-201-002 ISMP indicates I2C errors on bus I. (Trained service technician only) Replace the systemboard.166-201-003 ISMP indicates I2C errors on bus C. (Trained service technician only) Replace the systemboard.166-201-004 ISMP indicates I2C errors on bus M. 1. Reseat the DIMMs2. Replace the following components one at a time,in the order shown, restarting the server eachtime:a. DIMMsb. (Trained service technician only) Systemboard144 IBM System x3500 Type 7977: Problem Determination and Service Guide
