Dell Inspiron 15 (5521) Beep Codes Diagnostic Indicators


How to identify beep codes:

When a laptop or computer first powers on, it goes through an initial set of diagnostic tests to make sure vital components are preforming correctly. These tests are called POST or Power On Self Test. When a test fails, the user is notified via POST codes, Light codes, or Beep codes. For diagnosing Beep codes you need to:
  • Power on the laptop or restart it if it is already on.
  • Listen to the number of consecutive beep when the computer begins to boot. Restarting the laptop may be necessary and should not harm the laptop at this time.
Dell Inspiron 15 (5521) Beep Codes
# of Beeps Description Possible Cause(s)
1 BIOS ROM checksum in progress or failure System board failure, covers BIOS corruption or ROM errors.
2 No Memory (RAM) detected Memory or Memory slot failure
3
  • chipset Error (North and South bridge error, DMA/IMR/Timer error)
  • Time-Of-Day Clock test failure
  • Gate A20 failure
  • Super I/O chip failure
  • Keyboard controller test failure
System board failure
4 Memory read / write failure Memory failure
5 Real Time Clock (RTC) power fail CMOS battery failure
6 Video BIOS test failure Video subsystem failure
7 CPU Cache test failure Processor failure
8 LCD LCD failure

Most Common Fixes:

  • 1 Beep: Replace the motherboard / system board.
  • 2 Beeps: Reseat the memory or replace the memory.
  • 3 Beeps: Replace the motherboard / system board.
  • 4 Beeps: Reseat the memory or replace the memory.
  • 5 Beeps: Replace the CMOS battery.
  • 6 Beeps: Reseat or replace the video card or replace the motherboard / system board.
  • 7 Beeps: Reseat or replace the CPU.
  • 8 Beeps: Reseat the LCD cable or replace the LCD screen.

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Inspiron 15R 5521 Beep Codes

Topics: Dell Inspiron Repair Manuals Dell Laptop Repair Dell Repair Manuals Beep Codes Inspiron 15R (5521)

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6 Responses to Dell Inspiron 15 (5521) Beep Codes Diagnostic Indicators

  1. Werdna

    My Inspiron 15 5521 just beeps continuously from the computer speakers when I power on. The beeps are about 3 seconds apart. There is nothing on the display. The power light on the front (below the keyboard) is solid white and no other lights are on. When I remove the RAM, I get no beeps. I’ve tried removing the HDD, and reseating the RAM with just one stick. It still just beeps.

  2. Loralai Times

    sir my laptop inspiron 15 3521 having 7 beeping problm ,i power on if product 7 beeps then turns off………………why it doing it ………….sir plzzzzzz tell me the reason as quick as u can

    • The Inspiron 15 3521 has the CPU built onto the motherboard. If you’re getting 7 beeps, it is signifying a CPU failure and you will most likely have to replace the motherboard. It can be caused by a short on the motherboard, damage to the motherboard, the CPU overheating, or something like that. Unfortunately there is not an easy way to repair it besides replacing the motherboard.

    • fayazuddin

      cpu problem change the process ok

  3. Loralai Times

    i’m wiating for ur reply

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