@RAKIBUL007 -- Please answer my Question only Expert Person.
Sorry, but you may get non-experts who are volunteering their time & talent to try to become experts.
Have you done a Google-search for "HP beep codes"?
One such search-result is: HP and Compaq Desktop PCs - BIOS Beep Codes | HP® Customer Support
But, the most-common types of failures that produce your computer's symptoms are:
- failing power-supply
- failing motherboard
- failing processor
Do you have the technical skills to partially disassemble your computer, remove the current power-supply, and then locate/purchase/install a compatible replacement? The cost will be under $100.
A failing motherboard may cost $500 to $1000 to find a replacement, if HP''s warehouse has one available for purchase. Check: http://PartSurfer.HP.com
A failing processor requires a complete disassembly of your computer, and may cost $200 to $300 to purchase a compatible replacement.
Or, take your computer to a qualified computer technician, for professional trouble-shooting & repair.