3 Long Beeps followed by 4 Short beeps not turning on :/

[AidenZero]

My Pavilion All in one B225 is not Booting up. When I turn The computer on. It beeps 3 times and 4 more times faster.

[Lil_Boy_Blue]

Hi

BIOS Beep & LED error codes for Post April 2015 PC's	https://support.hp.com/us-en/document/bph07107
You get a LONG (MAJOR) signal category, RED LED & then a SHORT (MINOR) signal category, WHITE LED. Major – the category of the error; Minor – specific error in that category The AUDIBLE repeats 5 times, and the VISUAL until power is removed.	LONG Beeps / Blinks
2	BIOS
3	Hardware
4	Thermal
5	Main-Board

Hardware

3.4

The Main-Board displays a power failure (crowbar).* Indicates potential power system failure.

1 Reduce to minimum config (CPU, Main-Board, PSU, Single memory DIMM) 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, Main-Board, PSU.

[AidenZero]

Thanks for coming to help but, I’m still really confused to how to fix it.

[Lil_Boy_Blue]

Take it to a shop.