IBM 887022X Maintenance Manual - Page 198
Beep/symptom
UPC - 000435151957
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Beep symptoms Beep symptoms are short tones or a series of short tones separated by pauses (intervals without sound). See the following examples. Beeps 1-2-3 4 Description v One beep v A pause (or break) v Two beeps v A pause (or break) v Three beeps Four continuous beeps One beep after successfully completing POST indicates the system is functioning properly. 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. Beep/symptom FRU/action 1-1-3 (CMOS write/read test failed) 1. Battery 2. I/O board 1-1-4 (BIOS ROM checksum failed) I/O board 1-2-1 (Programmable Interval Timer failed) I/O board 1-2-2 (DMA initialization failed) I/O board 1-2-3 (DMA page register write/read failed) I/O board 1-2-4 (RAM refresh verification failed) 1. DIMM 2. SMP board 1-3-1 (1st 64K RAM test failed) 1. DIMM 2. SMP board 2-1-1 (Secondary DMA register failed) I/O board 2-1-2 (Primary DMA register failed) I/O board 2-1-3 (Primary interrupt mask register failed) 1. I/O board 2. SMP board 2-1-4 (Secondary interrupt mask register 1. I/O board failed) 2. SMP board 2-2-2 (Keyboard controller failed) 1. I/O board 2. Center plane 3-1-1 (Timer tick interrupt failed) I/O board 3-1-2 (Interval timer channel 2 failed) I/O board 3-1-4 (Time-of-Day clock failed) 1. Battery 2. I/O board 188 xSeries 445 Type 8870: Hardware Maintenance Manual and Troubleshooting Guide