IBM 8681 Hardware Maintenance Manual - Page 217

server starts, power-off the system, then attach/install the remaining components one at a time, until you hear the 3-3-2 beep. The last FRU added prior to the 3-3-2 beep code is the failing FRU. Power-on the server after the addition of each FRU, and power it off prior to adding the next FRU. FRUs should be added in the following order: a. Front panel (after which you no longer need to use jumper J11 on the I/O board to force power on) b. Power supplies (one at a time) c. Processors (one at a time) Note Addition of the 5th processor automatically requires installation of the second processor daughter card and the cache coherency filter DIMMs as well. Any of these may be the failing FRU if the system fails at this point. If the 3-3-2 beep occurs when this combination is installed, do the following: 1. Remove the cache coherency filter DIMMs. 2. Remove the first processor daughter board with all its processors. 3. Reboot the system. If the system boots without the 3-3-2 beep, one or more of the cache coherency filter DIMMs were the failing FRUs. Replace the pair of DIMMs. If the system does not boot with this combination of processor and processor daughter card, do the following: 1. Swap the processor with one from the first processor daughter card 2. Reboot the system. If the system boots without the 3-3-2 beep, the processor just removed is the failing FRU. Replace it. If the system still gives the 3-3-2 beep, the processor daughter board is the failing FRU. Replace it. d. Processor terminator cards (one at a time) e. Memory card (maintaining DIMM pairs across the memory cards) f. Memory DIMM (maintaining DIMM pairs across the memory cards) g. System management adapter h. SCSI backplane i. Hardfiles (one at a time) j. CDROM drive Netfinity 8500R - Type 8681 209