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, Type 7979 and 1914 server,” on page 79 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.Beep code Description Action3-2-3 Math coprocessor test failed. 1. (Trained service technician only) Reseatthe microprocessors.2. Replace the following components, one ata time, in the order shown, restarting theserver each time:v (Trained service technician only)Microprocessorsv (Trained service technician only) Systemboard3-2-4 Failure comparing CMOS memory sizeagainst actual. 1. Reseat the following components, one at atime, in the order shown:a. DIMMsb. Battery2. Replace the components listed in step 1,one at a time, in the order shown.3-3-1 Memory size mismatch occurred. 1. Reseat the following components, one at atime, in the order shown:a. DIMMsb. Battery2. Replace the components listed in step 1,one at a time, in the order shown.3-3-2 Critical SMBUS error occurred. 1. Disconnect the server power cord from theoutlet and wait 30 seconds; then,reconnect the power cord and restart theserver.2. Reseat the following components, one at atime, in the order shown:a. DIMMsb. Hard disk drive backplanec. Power supply3. Replace the following components, one ata time, in the order shown, restarting theserver each time:a. DIMMsb. Hard disk drive backplanec. Power supplyd. (Trained service technician only)System boardChapter 2. Diagnostics 21