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Table 25. POST beep codes (continued)
Symptom FRU/action
One Long and Two Short
Beeps
1. Video adapter (if present)
2. System board
Two Long and Two Short
Beeps Video adapter
Table 26. POST no-beep codes
No Beep Symptom FRU/action
No beep and the system
operates correctly.
1. Check speaker cables
2. Speaker
3. System board
No Beeps occur after
successfully completing
POST
(The Power-On
Status is disabled.)
1. Run Configuration/Setup, set the Start Options
Power-On Status to enable.
2. Check speaker connections
3. System board
No AC power (Power
supply AC LED is off)
1. Check the power cord.
2. Power supply (if two are installed, swap them to determine if
one is defective).
3. Power backplane.
4. Hot-swap power AC inlet box.
No beep and no video See the Hardware Installation Guide .
System will not
power-up
(Power supply
AC LED is on)
See the Hardware Installation Guide .
Appendix D. Engine POST and diagnostic program messages
139