IBM x3655 Service Guide - Page 127

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 1-3-1 First 64K RAM test failed. 1. Reseat the DIMMs. 2. Replace the lowest-numbered pair of DIMMs with an identical known good pair of DIMMs; then, restart the server. If the beep code error remains, go to 3b. Return one DIMM at a time from the failed pair to its connector, restarting the server after each DIMM, to identify the failed DIMM. 3. 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 1-3-2 First 64K RAM parity test failed. 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 2-1-1 Secondary DMA register failed. (Trained service technician only) Replace the system board. 2-1-2 Primary DMA register failed. (Trained service technician only) Replace the system board. 2-1-3 Primary interrupt mask register failed. (Trained service technician only) Replace the system board. 2-1-4 Secondary interrupt mask register failed. (Trained service technician only) Replace the system board. 2-2-1 Interrupt vector loading failed. (Trained service technician only) Replace the system board. 2-2-2 Keyboard controller failed. 1. Reseat the keyboard. 2. Replace the following components one at a time, in the order shown, restarting the server each time. a. Keyboard b. (Trained service technician only) System board Chapter 5. Diagnostics 109