Table 9-2 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity | Beeps | Possible Cause | Recommended Action | |
|
|
|
| |
Red Power LED flashes five | 5 | CAUTION: To avoid damage to the DIMMs or | ||
times, once every second, |
|
| the system board, you must unplug the computer | |
followed by a two second |
|
| power cord before attempting to reseat, install, or | |
pause. Beeps stop after fifth |
|
| remove a DIMM module. | |
iteration but LEDs continue |
|
| 1. | Reseat DIMMs. |
until problem is solved. |
|
| ||
|
|
| 2. | Replace DIMMs one at a time to isolate the |
|
|
|
| faulty module. |
|
|
| 3. | Replace |
|
|
|
| memory. |
|
|
| 4. | Replace the system board. |
|
|
|
| |
Red Power LED flashes six | 6 | For systems with a graphics card: | ||
times, once every second, |
|
| 1. | Reseat the graphics card. |
followed by a two second |
|
| ||
pause. Beeps stop after fifth |
|
| 2. | Replace the graphics card. |
iteration but LEDs continue |
|
| ||
until problem is solved. |
|
| 3. | Replace the system board. |
|
|
| ||
|
|
| For systems with integrated graphics, replace | |
|
|
| the system board. | |
|
|
|
| |
Red Power LED flashes | 7 | System board failure | Replace the system board. | |
seven times, once every |
| (ROM detected failure |
|
|
second, followed by a two |
| prior to video). |
|
|
second pause. Beeps stop |
|
|
|
|
after fifth iteration but LEDs |
|
|
|
|
continue until problem is |
|
|
|
|
solved. |
|
|
|
|
|
|
|
|
|
Red Power LED flashes eight | 8 | Invalid ROM based on | 1. | Reflash the system ROM with the latest |
times, once every second, |
| bad checksum. |
| BIOS image. See the “Boot Block |
followed by a two second |
|
|
| Emergency Recovery Mode” section of the |
pause. Beeps stop after fifth |
|
|
| Desktop Management Guide for more |
iteration but LEDs continue |
|
|
| information. |
until problem is solved. |
|
| 2. | Replace the system board. |
|
|
| ||
|
|
|
|
|
Red Power LED flashes nine | 9 | System powers on but is | 1. | Check that the voltage selector, located on |
times, once every second, |
| unable to boot. |
| the rear of the power supply (some |
followed by a two second |
|
|
| models), is set to the appropriate voltage. |
pause. Beeps stop after fifth |
|
|
| Proper voltage setting depends on your |
iteration but LEDs continue |
|
|
| region. |
until problem is solved. |
|
| 2. | Unplug the AC power cord from the |
|
|
| ||
|
|
|
| computer, wait 30 seconds, then plug the |
|
|
|
| power cord back in to the computer. |
|
|
| 3. | Replace the system board. |
|
|
| 4. | Replace the processor. |
|
|
|
|
|
