IBM 887022X Maintenance Manual - Page 202
FRU/action
UPC - 000435151957
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Note: See Chapter 8, "Parts listing, Type 8870," on page 249 to determine which components are replaceable by the customer, and which components should be replaced by an IBM field service technician. Level 2 light path LED FRU/action NMI (nonmaskable interrupt) Note: A PCI or MEM LED may also be on. 1. See System Error log. 2. If a PCI LED is on, follow the instructions for that LED. 3. If MEM LED is on, follow the instructions for that LED. 4. Restart the server. BOARD (board failure) See top cover LEDs to determine location of failing board. EVENT LOG (non optimal condition) 1. See System Error log. 2. See Service Processor log. POWER SUPPLY 1 1. Power supply 1 2. Top power board POWER SUPPLY 2 1. Power supply 2 2. Top power board VRM (VRM failure) Check event log or follow level 3 light path chart (see "Level 3 light path" on page 193) to determine location of failing level 4 light path LED (VRM). NON REDUND (nonredundancy lost) 1. If PS x LED is lit on light path diagnostics panel, follow instructions for that LED. 2. Failing power supply. OVER SPEC (power supplies' rating exceeded) 1. Power supply 2. Top power board 192 xSeries 445 Type 8870: Hardware Maintenance Manual and Troubleshooting Guide