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HP Envy Desktop
Microsoft Windows 10 (64-bit)

My HP ENVY Desktop TE01-0077c won't boot up - it gets caught in a cycle of 3 long beeps followed by 2 short beeps, power light goes off for a second then tries to boot up again with the same beeping message. What could be wrong? Is it problem with the  power supply or problem with the hard disk?

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