PC won't turn on - PSU crackling noise

  Kanimi 10:38 18 Nov 2015

I have built my pc during summer and it has been fine until two days ago. It started with a crackling noise and my pc not turning on correctly. It's not my pc case nor the power output as I have tried multiple sockets and my pc buttons do work as I have tested them multiple times. The only way to turn my pc on is to give it a power jolt by shutting down the power through the power output or button on the PSU itself, sometimes it takes multiple tries. I have tried checking the cables to see if everything is correctly connected and it seems to be so. I wonder if it's the cable or PSU itself that's a problem...

PC specs:

CPU - Intel Core i5-4690K 3.5GHz Quad-Core Processor

CPU Cooler - be quiet! Shadow Rock Slim 113.8 CFM Rifle Bearing CPU Cooler

Motherboard - MSI Z97-GAMING 5 ATX LGA1150 Motherboard

RAM - Corsair Vengeance 8GB (2x4GB) DDR3-1866 Memory

SSD - Samsung 850 EVO-Series 120GB 2.5" Solid State Drive

HDD - Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive

HDD - WD - 2TB Desktop SATA Hard Drive - OEM - Green 3.5"

GPU - MSI GeForce GTX 970 4GB Twin Frozr V Video Card

Case - Corsair 330R Titanium Edition ATX Mid Tower Case

PSU - XFX 550W 80+ Bronze Certified ATX Power Supply

Monitors - LG 23EA63V-P 23.0" (Main) iiyama ProLite E2271HDS (Secondary)

  Fruit Bat /\0/\ 11:05 18 Nov 2015

crackling sounds like bad connections, partly broken wires, bad capacitors in PSU.

Cable is easy enough to change as they are standard.

  wee eddie 11:20 18 Nov 2015

Crackling suggests sparks. Sparks lead to flames.

Take the side off the PC. Close the curtains, turn the lights off aand have a look

  Kanimi 11:23 18 Nov 2015

Not that kind of crackling wee eddie, google my PSU followed by crackling noises and look at the videos, and no it is not my fan brushing against something. I suspect the cable but looking for more ideas until I get a new cable.

  wee eddie 11:44 18 Nov 2015

The dark room test is free. I'd still do it, just in case.

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