PC Boot Issue - Starts, turns off, gets stuck in a restart loop

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19 Oct 2014
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For a little while, this issue would occour, and with a few attempts of manually turning off the power supply then booting worked to get it to start, and once up and running, everything worked perfectly, running for hours on end with standard performance.

After a little period of time it would never get past the boot up/loop.

https://streamable.com/pktz4 < This video shows it happening. I press the power on button, it starts up for maybe 5-10 seconds or so- lights, fans, everything turns on, then it shuts off and goes dark, and then on its own tries to start up again, and will seemingly do so infinitely in a loop.

I've since tried to boot it with various components taken out (GPU, various fans & lights, DVD drive, swapped/taken RAM out, etc as well as all peripherals/USB devices). None seem to be working. The PSU is relatively new and the issue actually was a problem prior to it being replaced, so I doubt that is the cause of the problem. I've also tried to boot it with the minimal needed components, with the same issue persisting.

Is it logical to conclude the faulty component is the motherboard/processor? Which of the two it happens to be isn't too big of a deal since I've decided on both getting a new motherboard&processor (if this indeed is the problem) since just getting a new motherboard suitable for the processors 1150 socket seems like a headache anyway.

Any input/thoughts appreciated.
 
Unless having identical fault new PSU certainly couldn't cause identical symptoms.
Which sounds lot like (likely cheap Chineses) capacitors going bad.
That could have damaged motherboard keeping symptoms.
Guess bad garbage CPU VRM could have also tired.

And who knows if "BIOS"/RTC battery could cause this kind symptoms.
It should be CR2032 and at least cheap to replace.

Also try booting with minimum parts outside PC.
Though some short behind motherboard triggering PSU's protections should shut down PC and need power cycling PSU.


Anyway could you list precise components of PC?
Also my crystall is refusing to work.
 
Case: NZXT Phantom 530
Processor: Intel Core i7-4790K
Motherboard: GA-Z97X-UD3H-BK
GPU: ASUS Geforce GTX 1080 ROG STRIX
RAM: Avexir Golden Blitz 16GB (2x8GB) DDR3¨
PSU: SuperFlower Leadex GOLD 850W
SSD: Crucial MX100 512GB SATA
Storage: Seagate Barracuda 2TB 7200RPM
Cooler: NZXT KRAKEN X61 280mm
DVD drive: OcUK 24x DVD±RW SATA ReWriter

I'll give it a try with the minimum outside the PC.
 
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I had a Gigabyte board once that was a pig to boot from cold. Are you able to get into the BIOS? That board would boot if I entered the bios and then just exited and let it reboot.

Anyway, tangent aside, I take it you've tried clearing CMOS?
 
Change the BIOS battery, will cost you about £0.50 then see how it goes from there.

Using just one RAM module, no graphics card and out side the case is also a good plan. :)
 
One stick of ram(rotate between memory slots, then try the other stick), use onboard GPU, barebones boot, no hard drives, outside the case(if possible) and see if you can reach the bios, it takes some of your components out of the loop and lightens the load on your PSU during testing.

Start as barebones as you can, get a successful boot, then work your way into adding things back.
 
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