Dell Vostro 5481 Service Manual - Page 67
Battery status LED
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The system will not shut down when displaying the Diagnostic Error Codes. Diagnostic Error Codes always supersede any other use of the LED. For instance, on Notebooks, battery codes for Low Battery or Battery Failure situations will not be displayed when Diagnostic Error Codes are being displayed. Table 6. Diagnostic LED Blinking Pattern Amber White 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 3 1 3 2 3 3 3 4 3 5 3 6 3 7 Possible Problem Suggested Resolution CPU failure System Board failure (included BIOS corruption or ROM error) No Memory/ RAM detected Memory/RAM failure Invalid memory installed System board/Chipset Error/Clock failure/Gate A20 failure/Super I/O failure/Keyboard controller failure LCD failure No power supply to the LCD due to LCD power rail failure RTC power failure PCI or Video card/chip failure BIOS Recovery image not found BIOS Recovery image found but invalid EC ran into power sequencing failure. Flash corruption detected by SBIOS Timeout waiting on ME to reply to HECI message Replace the system board. Flash latest BIOS version. If problem persists, replace the system board. Confirm that the memory module.. is installed properly. If problem persists, replace the memory module Replace the memory module. Replace the memory module. Replace the system board. Replace the LCD. Replace the system board. Replace the CMOS battery. Replace the system board. Flash latest BIOS version. If problem persists, replace the system board. Flash latest BIOS version. If problem persists, replace the system board. Flash latest BIOS version. If problem persists, replace the system board. Flash latest BIOS version. If problem persists, replace the system board. Flash latest BIOS version. If problem persists, replace the system board. Battery status LED Table 7. Battery status LED Power Source AC Adapter AC Adapter AC Adapter Battery Battery Battery LED behavior Solid White Solid White Off Amber Off Off System Power State S0 S4/S5 S4/S5 S0 S0 S4/S5 Battery Charge Level 0-100% < Fully Charged Fully Charged < = 10% > 10% 0-100% • S0 (ON) - System is turned on. • S4- The system consumes the least power compared to all other sleep states. The system is almost at an OFF state, expect for a trickle power. The context data is written to hard drive. • S5 (OFF) - The system is in a shutdown state. Troubleshooting 67
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