Dell Inspiron 24 5420 All-in-One Owners Manual - Page 116
Table 45. System-diagnostic lights continued, Blinking pattern, Problem description
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Table 45. System-diagnostic lights (continued) Blinking pattern Amber White 1 5 1 6 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 Problem description EC unable to program i-Fuse Suggested resolution Replace the system board. Generic catch-all for ungraceful EC code flow errors Disconnect all power source (AC, battery, coin cell) and drain flea power by pressing and holding down power button for 3~5 seconds. CPU failure ● Run the Dell Support Assist/Dell Diagnostics tool. ● If problem persists, replace the system board. System board failure (included ● BIOS corruption or ROM ● error) Flash latest BIOS version If problem persists, replace the system board. No memory/RAM detected ● Confirm that the memory module is installed properly. ● If problem persists, replace the memory module. Memory/RAM failure ● Reset and swap memory modules among the slots. ● If problem persists, replace the memory module. Invalid memory installed ● Reset and swap memory modules among the slots. ● If problem persists, replace the memory module. System board/Chipset Error Replace the system board. LCD failure (SBIOS message) Replace the LCD module. LCD failure (EC detection of power rail failure) Replace the system board. CMOS battery failure ● Reset the main battery connection. ● If problem persists, replace the main battery. PCI or Video card/chip failure Replace the system board. BIOS Recovery image not found BIOS Recovery image found but invalid Power rail failure ● Flash latest BIOS version ● If problem persists, replace the system board. ● Flash latest BIOS version ● If problem persists, replace the system board. Replace the system board. 116 Troubleshooting