IBM x3655 Service Guide - Page 129
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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. Beep code Description Action 3-1-4 Time-of-day clock failed. 1. Reseat the battery. 2. Replace the following components one at a time, in the order shown, restarting the server each time: a. Battery b. (Trained service technician only) System board 3-2-1 Serial port failed. (Trained service technician only) Replace the system board. 3-2-4 Failure comparing CMOS memory size against actual. 1. Reseat the following components: a. DIMMs b. Battery 2. Replace the following components one at a time, in the order shown, restarting the server each time: a. DIMMs b. Battery c. (Trained service technician only) System board 3-3-1 Memory size mismatch occurred. 1. Verify that both DIMMs in the bank are of the same size, speed, type and technology. 2. Reseat the following components: a. DIMMs b. Battery 3. Replace the following components one at a time, in the order shown, restarting the server each time: a. DIMMs b. Battery c. (Trained service technician only) System board 3-3-2 Critical SMBUS error occurred. 1. Reseat the DIMMs. 2. Replace the following components one at a time, in the order shown, restarting the server each time: a. DIMMs b. (Trained service technician only) System board Chapter 5. Diagnostics 111