IBM 315, Hardware Maintenance Manual Supplement

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Beep Symptom FRU/Action
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 640 KB 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. Video Adapter
(if installed)
2. System Board
Three short beeps during
POST. 1. System Board
Memory
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
No beep during POST. 1. See “Undetermined
Problem” on
page 79.
2. System Board
3. Memory Module
4. Any Adapter or Device
5. Riser Card
6. Power Cord
7. Power Supply
PC Server 315 - Type 8638
103