.

Who de lidded the cpu? Was the issue there before de lidding ? Sounds like a ram issue to me, especially as you say the bios rests itself, that's a memory training issue, try with 1 stick of ram only in slot 2, see if it still does it.

I delidded a 4770k once, the old way, with a razor blade, before the tools were available, I thought it went successfully, I was wrong, upon putting it back in the socket, I could only run single channel mode on my ram, dual channel noonger worked, upon closer inspection of the cpu, barely visible, I had the tinyest knick in the pcb, you needed a magnifying glass to full see it, and that was the issue, severed one of the channels, needed a new cpu.
it was delidded by one of those ebay services, the cpu was brand new beforehand. i will try removing 1 of the ram sticks after i go on holiday, problem is i can only test whats causing the issue once per day. it was delidded with proper tools as far as im aware
 
Shorting was my first thought too - risers not properly installed or something like that.

Totally strip it all out and put back the bare minimum as mentioned and see if it works but make damn sure you use the mounting risers for the motherboard correctly when screwing it into your case
when you say be damn sure is there some kind of danger with it? i dont know what risers are so im assuming you mean the screws i use to fix the motherboard in where theres 1 in the centre that sticks out, i know that 1 or 2 of them arent actually screwed in because the motherboard doesnt fit or i cant seem to rotate it correctly
 
As far as I know, it can’t or at least shouldn’t be - never rule anything out though. It could be something else that is causing a short.

Like others have said, take it all apart and put back in the bare minimum and slowly add more (GPU, ram etc). That should exp you identify the culprit
Can i start the pc without an ssd or any ram
 
You need memory to boot. You don't need any storage drives.

I haven't read the full thread, but have you tried taking it all out of the case and setting it up on the bench? The motherboard box usually makes a good platform.

I've always tested everything together before I install anything into the case. It can save a lot of time and effort.
the issue happened today, and i tried disconnecting somethings to make it work. on the right side of my case where all the cables are its quite conjested, i disconnected and reconnected the ssd and one of the lighting for the case and then it magically worked again. probably a coincidence but ill find out in a few days if it really has fixed
 
I hope it's the fix you need.
As far as the short only happening when you first turn it on. It may be that the connection causing the short is not actual contact but arcing over a tiny distance, and when the pc is trying again it doesn't have the initial surge to cause the arc.
Total layman's hypothesis though. I haven't a clue as to the technicalities of PSU operation and only found out shorting on the case was a thing recently :D
unfortunately still not fixed, but i have noticed something new. when i do try to turn it on, a red light lights above the error lighter and turns off once the pc has booted. ive looked in the manual and i cant find anything as to what it means though, might be in the video, just above the error led
 
I have been having a very similar problem recently. Exact same symptoms that you describe. I read on another site it could quite possibly have something to do with the CMOS battery being on it's way out as rare as that may seem. I changed mine for a new one and loaded in BIOS defaults and haven't had a issue since. For something so cheap and easy to do it's surely worth giving a go.
great, can you tell me which exact battery it is and where it goes for a z370 gaming 7 aorus? dont wanna get the wrong battery and blow my pc up lol. ill defo give this a try
 
Turn off your PC, ground yourself (precautionary step) and then the battery will be held in place with a small clip. Should just be able to pry it open and the battery will lift out.

Then push the new battery in.

This may be helpful,
tried the new battery last night, unfortunately issue is still present, but thank you for your help anyway
 
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