IBM 8478 Hardware Maintenance Manual - Page 110
Symptom, FRU/Action, System, Board
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Beep/ Symptom FRU/Action 1-1-4 (BIOS EEPROM checksum failed) 1. System Board 1-2-1 1. System Board (Programmable Interval Timer failed) 1-2-2 (DMA initialization failed) 1. System Board 1-2-3 (DMA page register write/read failed) 1. System Board 1-2-4 (RAM refresh verification failed) 1. DIMM 2. System Board 1-3-1 (1st 64K RAM test failed) 1. DIMM 2. System Board 1-3-2 (1st 64K RAM parity test failed) 1. DIMM 2. Processor 3. System Board 1-4-3 (Interrupt vector loading test failed) 1. System Board 2-1-1 (Secondary DMA register failed) 1. System Board 2-1-2 (Primary DMA register failed) 1. System Board 2-13(Primary 1. System Board interrupt mask register failed) 2-1-4 1. System Board (Secondary interrupt mask register failed) 2-2-1 (Interrupt vector loading failed) 1. System Board 100 Hardware Maintenance Manual: xSeries 200