IBM 8681 Hardware Maintenance Manual - Page 218

k. Diskette drive l. Fans (one at a time) m. PCI card (one at a time) n. External device (one at a time) 8. If the server does not start with the minimum required configuration, one of the FRUs remaining in the configuration is bad. Do the following: a. If the system had multiple processors, processor daughter boards, memory cards, DIMMs or power supplies in its original configuration, swap removed FRUs with those currently installed in the minimum partial-boot configuration reboot to see if there is any change in system behavior. If system boots to the IBM logo screen after swapping a FRU, last FRU removed is the failing FRU. Swap FRUs one at a time in this order: 1) Power supplies 2) Processors 3) Processor terminator cards 4) Processor daughter boards 5) Memory boards 6) DIMMs b. Continue with this step until the failing FRU has been identified, or all multiple FRUs have been cycled through the minimum configuration. c. If the failing FRU has been identified, replace it and go to step 8. d. If all multiple FRUs have been cycled through the minimum configuration and the failing FRU has not been identified, go to step 9 9. One of the FRUs remaining in the configuration is the failing FRU. Replace FRUs in the order listed below. The FRU which allows the system to boot without the 3-3-2 beep is the failing FRU: a. Memory board (if the original configuration had only one) b. DIMM (if the original configuration had only one) c. Processor (if the original configuration had only one) d. Processor terminator card (if the original configuration had only one) e. Processor daughter board (if the original configuration had only one) f. Processor controller board g. I/O board h. I/O function card i. Power control card j. Midplane 10. Once the failing FRU has been identified and the minimum configuration will boot properly without the 3-3-2 beep code, reconfigure the server to its orginal configuration. 210 Netfinity Server HMM