IBM x3655 Service Guide - Page 141

v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 4, "Parts listing, System x3655, Type 7985," on page 97 to determine which components 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 a trained service technician. Error code Description Action 01298200 Processor speed mismatch. Make sure that all microprocessors have the same number of cores, cache size and type, clock speed, and clock frequencies (see "Using the Configuration/Setup Utility program" on page 18). 19990301 Hard disk sector error. 1. Reseat the hard disk drive. 2. Replace the following components one at a time, in the order shown, restarting the server each time: a. Hard disk drive b. (Trained service technician only) System board 19990305 An operating system was not found. 1. Make sure that a bootable operating system is installed. 2. Run the hard disk drive diagnostic test. 3. Reseat the hard disk drive. 4. Replace the following components one at a time, in the order shown, restarting the server each time: a. Hard disk drive b. (Trained service technician only) System board Chapter 5. Diagnostics 123