Computer keeps restarting.. not sure why

[GigFledge]

Alright, so my desktop runs great when it's on, does everything I need it to. However, whenever I turn it off, shut down, reset, etc., it will turn off, and won't come back on. It will "turn on" fans will light up and spin, graphics card lights up, however my peripherals don't light up and it doesn't post. And then it'll turn off. And back on, and off again, usually a few times before it just stays on without posting or having my peripherals light up, can't do anything with it. I have to completely turn it off, flipping off the powerstrip or the psu, waiting till all the lights inside turn off, then turn it back on and it'll boot up, nearly fine. I would have to go into the bios and choose the boot device from there. I figured this was a dead mobo battery, so I replaced that, and now whenever I boot it up, even when I completely turn it off, it will do the stupid boot loop thing. I have to manually reset the cmos to access the bios to boot up my computer.

I'm honestly at a loss as to what to do, do y'all have any suggestions?

 

ASUS P8Z68‑V Pro/Gen 3

i7-2600K

Cooler Master Hyper 212 EVO

EVGA GTX 1080

20Gb 1333Hz DDR3 RAM (don't remember the exact make)

1200 watt Corsair PSU

Samsung EVO 512Gb SSD

Cooler Master HAF

[orangecat]

Seems like a fault PSU. Can you reliability turn on the PSU of you bridge the Green wire on the 24 pin to a ground pin? Also your PSU is massively overkill for your system.

[GigFledge]

I'm not sure, what is that supposed to do?

And yes, it is overkill, but I didn't buy the parts, I got them from a friend.

[orangecat]

1 minute ago, GigFledge said:

I'm not sure, what is that supposed to do?

And yes, it is overkill, but I didn't buy the parts, I got them from a friend.

If you short the green wire on the 24 pin to a black wire on the 24 pin it changes the PSU power state from standby to on. That's what the power switch does on your PC. It just shorts that pin to ground and that's what tells the PSU to starts delivering all it's rail voltages other than +5v standby power. Just be careful and make sure you know what wires are what and don't short something to ground if you don't know for sure it's the power on wire. Some PSUs these days have all black wires so you'll need to find a pinout diagram for that PSU.

[GigFledge]

24 minutes ago, Kilobytez95 said:

If you short the green wire on the 24 pin to a black wire on the 24 pin it changes the PSU power state from standby to on. That's what the power switch does on your PC. It just shorts that pin to ground and that's what tells the PSU to starts delivering all it's rail voltages other than +5v standby power. Just be careful and make sure you know what wires are what and don't short something to ground if you don't know for sure it's the power on wire. Some PSUs these days have all black wires so you'll need to find a pinout diagram for that PSU.

Ahh, alrighty. Well I'll try that when I get home from class and update with whatever I find out. Thank you

[orangecat]

Just now, GigFledge said:

Ahh, alrighty. Well I'll try that when I get home from class and update with whatever I find out. Thank you

np but like I said just lookup a pinout for your PSU and double check before doing anything. Also as you can probably guess make sure your PSU isn't connected to your PC. The only thing that should be connected is fans so you can tell when its powered on. So that means disconnect EPS, PCI-e and obviously any sata or molex as you don't want your PC getting power when the 24 pin isn't connected.  I recommend just pulling your PSU out completely along with a single fan connected directly to your PSU with an adapter or something. All you wanna do is check that it can power on and spin a fan reliably. if it can do that it's a PSU issue. I would also recommend watching a youtube video or something on how to do it first just so you have some info on the exact process.