Dell Vostro 5301, Service Manual

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Table 1. LED codes (continued)
Diagnostic light codes Problem description Recommended Solution
2,1 Processor failure Replace the CPU. If CPU is on-board, replace system
board
2,2 System board: BIOS or ROM (Read-Only
Memory) failure Replace system board
2,3 No memory or RAM (Random-Access
Memory) detected Reseat and swap memory modules between the slots.
If problem persists, replace the memory module
2,4 Memory or RAM (Random-Access
Memory) failure Reseat and swap memory modules between the slots.
If problem persists, replace the memory module
2,5 Invalid memory installed Reseat and swap memory modules between the slots.
If problem persists, replace the memory module
2,6 System-board or chipset error Replace system board
2,7 Display failure Replace display vable (EDP) if possible, otherwise
replace the display assembly (LCD).
2,8 LCD power rail failure. Replace system
board Replace system board
3,1 Coin-cell battery failure Reset the CMOS battery connection. If problem
persists, replace the RTC battery
3,2 PCI, video card/chip failure Replace system board
3,3 Recovery image not found Flash latest BIOS version. If problem persists, replace
the system board
3,4 Recovery image found but invalid Flash latest BIOS version. If problem persists, replace
the system board
3,5 Power-rail failure Replace system board
3,6 System BIOS Flash incomplete Replace system board
3,7 Management Engine (ME) error Replace system board
Camera status light: Indicates whether the camera is in use.
● Solid white — Camera is in use.
● Off — Camera is not in use.
Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.
● Solid white — Caps Lock enabled.
● Off — Caps Lock disabled.
Updating the BIOS using the USB drive in Windows
Steps
1. Follow the procedure from step 1 to step 6 in Updating the BIOS in Windows to download the latest BIOS setup program file.
2. Create a bootable USB drive. For more information, see the knowledge base article 000145519 at www.dell.com/support .
3. Copy the BIOS setup program file to the bootable USB drive.
4. Connect the bootable USB drive to the computer that needs the BIOS update.
5. Restart the computer and press
F12 .
6. Select the USB drive from the One Time Boot Menu .
7. Type the BIOS setup program filename and press Enter .
The BIOS Update Utility appears.
8. Follow the on-screen instructions to complete the BIOS update.
58 Troubleshooting