IBM 2256 Computer Hardware User Manual


 
No-beep symptoms
Important:
Type 2254, 2256, 2257, 6336, 6337, 6339, 6341, 6342, 6346, 6347, and 6348 computers default
to come up quiet (no beep and no memory count and checkpoint code display) when no
errors are detected by POST.
To enable beep and memory count and checkpoint code display when a successful POST
occurs, do the following:
1. Select Start Options in the Configuration/Setup Utility program (see Setup Utility
program on page 10).
2. Set Power-On Self-Test to Enhanced.
Symptom/Error FRU/Action
No beep during POST but computer works
correctly.
1. System Board
No beep during POST.
1. See “Undetermined problems” on page
109.
2. System Board
3. Memory Module
4. Any Adapter or Device
5. Riser Card
6. Power Cord
7. Power Supply
92 Hardware Maintenance Manual