PC made weird noise when starting up, now not starting at all anymore.

[ForgottenAncient]

Hello everyone,

1 year ago i built my own pc, and i has been running smoothly every since till today.
Because my initial built only had a 250 GB SSD, i wanted to upgrade with 1x HDD of 1TB.
So today i install the HDD when everything is turned off. Connect SATA, Connect PSU.
Then i try to boot my pc again, and suddenly this very loud noise start to appear at start up.
first its mediocre, but as the pc boots up, it gets louder and louder till it reaches like a constant volume. then when it has booted, it often lowers a bit again.
I didn't think this was a good sign. so i put off the power, and removed the HDD again.
Now my built was like it was before..i try to boot my pc. Nothing happens. Everything is plugged in, the on switch is on, psu plugged in net etc.

Does anyone know what is causing the problem and how to fix it?

This is my built for more info:
PSU: Sea Sonic S12II-620 Bronze (620 watt)
Screen: Iiyama ProLite XB2380HS
Case: NZXT Crafted Series Phantom 410
RAM: Kingston HyperX Beast 2x4GB
CPU: Intel Core i5 4670K / 3.4 GHz - 6 MB cache - LGA1150
MOBO: Gigabyte Z87X-D3H - Moederbord - ATX - LGA1150 Socket -
Z87 - USB 3.0 - Gigabit Ethernet - HD Audio
GPU: MSI GTX 770 Gaming 2 GDDR5
SSD: Samsung 840 EVO Basic - Solid state drive - 250 GB

New HDD: WD BLUE 1TB

 

[quilciri]

Is the motherboard power LED on when the PSU is plugged in and turned on?

 

[SkyBill40]

You may have a dead PSU. Let it rest for several hours and try it again. If it won't come on and stay on or immediately shuts off, it's toast.

 

[ForgottenAncient]

Is the motherboard power LED on when the PSU is plugged in and turned on?

It could be me but i do not find a power led on my motherboard, not even in the manual of the mobo.

Manual:
At page 7 is the layout of the mobo, could you be so kind to tell me where the power led is?

http://files.sotmarket.ru/instr/komplektuushie_pc/motherboard/gigabyte/manual-gigabyte-ga-z87x-d3h.pdf

 

[ForgottenAncient]

You may have a dead PSU. Let it rest for several hours and try it again. If it won't come on and stay on or immediately shuts off, it's toast.

How could it be dead so quickly? it worked several hours ago

 

[SkyBill40]

That's the mystery of electronics: they work or they suddenly don't work. Their death can come at any time and usually comes at a mostly inconvenient time at that.

 

[ForgottenAncient]

That's the mystery of electronics: they work or they suddenly don't work. Their death can come at any time and usually comes at a mostly inconvenient time at that.

even if the psu only has 1 year of service? that is horrific. I hope i can sent it back and get a new on for free..

 

[SkyBill40]

Yep. Just the way it goes some times. I agree that it's unacceptable for what's seen as a quality manufacturer in Seasonic. I've got an old Raidmax 630w powering my mom's computer (my old one) that's been running flawlessly for 7+ years. You just never know.

If it's still under warranty, contact Seasonic.

 

[quilciri]

Do you or a friend have a known good PSU you can test with?