appendix E
DIAGNOSTIC INDICATOR LIGHTS
LED | Color | LED Activity | State/Message |
Power | Green | On | Computer on |
Power | Green | 1 blink/second | Normal suspend mode |
Power | Green | 1 blink/second | Suspend to RAM |
Power | None |
| Computer off |
Power | Red | 4 blinks/second | CPU thermal shutdown |
Power | Red | On | CPU not installed/fetching code |
Power | Red | 1 blink/second | ROM error |
Power | Red | 1 blink/2 or more | Power supply overloaded |
|
| seconds |
|
Power and Hard Drive | Red | On | Riser board not seated |
Num Lock | Green | Flashing | Memory error |
Caps Lock | Green | Flashing | No video |
Scroll Lock | Green | Flashing | System board failure, prior to video |
Deskpro Service Reference Guide |