Question PC used to crash to power off state and give Anti-Surge warning, but now it won't even start up ?

Apr 25, 2025
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PC Specs
Mobo: ASUS Z170-K
CPU: i7-6700K
GPU: GTX 1070
RAM: Corsair Vengeance (2 x 8GB) 2400mhz
PSU: DeepCool PF550 (bought Oct 2023)

For the past week my computer has been shutting down on its own and i was getting anti surge trigger warning in the BIOS when powering up again. This was followed by a storm nearby my area which had led to a transformer change aswell so I thought it was due to that.

Few days ago I had problems turning it even on so i removed a ram module and it worked fine, I even tested it on valley benchmark so my conclusion was one of my ram sticks was effected and the power supply and other components were okay.

Today I find my computer is unable to turn on again even if the ram sticks removed, although I have to say these ram sticks have been the bane of my existence every time I move or clean my computer I had to readjust then 3 to 4 times until I see the boot screen again, maybe the storm was the final blow my ram couldn't handle.

My question is how do I be sure that the ram sticks are causing this problem and perhaps not motherboard being faulty(maybe it has loose slot instead of ram being faulty), I have tested my ram in multiple slots, it works in 1,3 slots sometimes(yes I have to re seat it alot) but never works in 2,4 no matter how many times I re seat it, does that mean my motherboard slot is faulty? or perhaps the PSU although I have stress tested it and it was able to handle full load for quite some time.

I have no problem buying a new set of ram but I'm a little worried if my motherboard is faulty there are no models I can replace it with, i can only find motherboards smaller than atx and which do not support overclocking, Please Help me, Should buy new ram or would that be a waste.