HP Envy Desktop 750-524 suddenly shut down, won't power up

[clufster]

Unit will not power up. Green LED light under power cord receptacle is flashing.  

I unplugged the unit, lamp tested the power strip outlet, plugged it back in and held down the power switch 30 seconds, and there is still no power - no beeps, no fans.  

[Grzwacz]

Hi,

Good troubleshooting.

Sounds like the power supply has failed.

Your MB has a standard 24 pin plus 4 pin PSU connection to the board. You have a 500 watt ATX power supply, 150 × 86 × 140 mm (5.9 × 3.4 × 5.5 in).

Measure this power supply to verify. Replace with a similar PSU. Look at Corsair, or Seasonic, or EVGA, or others  for reliable replacements.

Regards

[clufster]

1. Is there instructions somewhere that show me how to replace the Power Supply Unit?  

2. Where is a good place to buy a PSU?

3. Are my programs and data safe?

[Grzwacz · Accepted solution]

HI,

I buy power supplies at Amazon or Newegg.

Your OS installation (programs and data) should be good to go when replacing the power supply. Nothing is guaranteed on this planet. I can't predict any unforeseen circumstances. You could install a bad power supply which promptly destroys all components connected to the MB. Worst case scenario, highly unlikely.

Replacing a power supply has many steps to achieve the desired results. Check out this YouTube video (Link) for instructions.

Its a different HP PC but the steps are generally the same.

Contact a local PC tech for assistance.

Regards