Use the following table to learn about the meaning of a code that your computer may encounter.
hp-bliking
Code type Number of Blinks or Beeps Component Being Checked Condition Possible solution(s)
AC power adapter LED Constantly on Power adapter OK. Power is being supplied. None. The power adapter is likely not the problem.
AC power adapter LED Constantly off Power adapter Power is not being supplied Try a different power outlet.

Replace power adapter.

AC power adapter LED Continuous blinking Power adapter Insufficient power Try a different power outlet.

Replace power adapter.

Caps Lock/Num Lock 1 CPU CPU not functional Reseat replace CPU.

Service

Caps Lock/Num Lock 2 BIOS BIOS corruption failure Restore BIOS from onboard backup (jumpers)

Service

Caps Lock/Num Lock 3 Memory Memory module error not functional Reseat memory modules (see next section).

Test memory from UEFI or BIOS.

Replace bad memory modules.

Service

Caps Lock/Num Lock 4 Graphics Graphics controller not functional Service
Caps Lock/Num Lock 5 System board General system board failure Service
Caps Lock/Num Lock 6 BIOS BIOS authentication failure Restore BIOS from onboard backup (jumpers)

Service

Beep Varies Varies Varies Reseat memory modules (see next section).

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Service

For more detail on the exact code, search the Internet for “beep code” and the manufacturer of your BIOS – such as AMI or Award.

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