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HP Recommended
pavilion all in one
Microsoft Windows 10 (64-bit)

On power up of my HP Pavilion All-in-One - I get 3 long beeps & 4 short one. This sequence repeats 5 times and pc boots up normal.


The troubleshooting steps are very confusing. can someone translate into layman's terms? and is this something i can do at home or do i have to get repaired? hah, too techy!


The system board displays a power failure (crowbar).*
Indicates potential power system failure.
  1. Reduce to minimum config (CPU, System board, PSU, 1 DIMM of memory) and isolate failed component.
  2. Reduce further if issue persists.
  3. Test known good PSU.
  4. Replace affected component.
  5. If unable to confirm source, replace CPU, System Board, PSU.
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