IBM 86655RY Hardware Maintenance Manual - Page 228

Beep/Symptom One Long and Two Short Beeps Two Long and Two Short Beeps FRU/Action 1. Video adapter (if present) 2. I/O Legacy Board 1. Video adapter No beep symptoms No Beep Symptom No beep and the system operates correctly. No Beeps occur after successfully completing POST (The Power-On Status is disabled.) No ac power (Power supply ac LED is off) No beep and no video System will not power-up (Power supply ac LED is on) 1. Diagnostic LED Panel FRU/Action 1. Run Configuration/Setup, set the Start Options Power-On Status to enable. 2. Diagnostic LED Panel 3. I/O Legacy Board 1. Check the power cord. 2. Power Supply (If two are installed, swap them to determine if one is defective.) 3. Power Backplane 1. See "Undetermined problems" on page 241 1. See"Power supply LED errors" on page 225 Diagnostic panel LEDs The system error LED is turned on when an error is detected. If the system error LED is on, remove the cover and check the diagnostic panel LEDs. The following is a complete list of diagnostic panel LEDs followed by the FRU/Action for correcting the problem. Note: If a diagnostic panel LED is on and the information LED panel system error LED is off, there is probably an LED problem. Run LED diagnostics. Notes: 1.To locate the LEDs on the processor board see "Processor board component locations" on page 55. 2.Check the System Error Log for additional information before replacing a FRU. 3.It may be necessary to view the system error log from a remote connection, such as MOST. 4.The memory card DIMM error LEDs, processor error LEDs, and VRM error LEDs turn off when the system is powered down. 218 Hardware Maintenance Manual: Netfinity 7600 - Type 8665 Models 1RY, 2RY