IBM 3745 Series, Installation And Maintenance Manual

Page: 101 / 270

Beep Symptom FRU/Action
2-1-X
First 64KB of RAM failed. 1. Memory Module
2. System Board
2-2-2 1. Video Card (if installed)
2. System Board
2-2-X
First 64KB of RAM failed. 1. Memory Module
2. System Board
2-3-X 1. Memory Module
2. System Board
2-4-X 1. Run Setup
2. Memory Module
3. System Board
3-1-X
DMA register failed. 1. System Board
3-2-4
Keyboard controller failed. 1. System Board
2. Keyboard
3-3-4
Screen initialization failed. 1. Video Adapter (if installed)
2. System Board
3. Display
3-4-1
Screen retrace test detected an error. 1. Video Adapter (if installed)
2. System Board
3. Display
3-4-2
POST is searching for video ROM. 1. Video Adapter (if installed)
2. System Board
4 1. Video Adapter (if installed)
2. System Board
All other beep code sequences. 1. System Board
One long and one short beep during
POST.
Base 640KB memory error or shadow
RAM error. 1. Memory Module
2. System Board
One long beep and two or three short
beeps during POST.
(Video error) 1. Display Adapter (if installed)
2. System Board
Three short beeps during POST. 1. See “System Board Memory” on
page 3-38
2. System Board
Continuous beep. 1. System Board
Repeating short beeps. 1. Keyboard stuck key?
2. Keyboard Cable
3. System Board
No Beep Symptoms
Symptom/Error FRU/Action
No beep during POST but computer
works correctly 1. System Board
Chapter 3. Service Processor Troubleshooting
3-17