My situation :
I’ve installed 2 additional memory modules replacing my old memory modules (while I had 2 new modules already installed, extending this to a 4 module configuration of the same module model). After some initial troubles which got resolved after a clear cmos and UEFI configuration I could verify everything shows up in the OS (64G/16 per module) with XMP profile applied. After a subsequent reboot the system never started up again. I undid my upgrade, cleared CMOS. removed all hardware and cables which aren’t required (only left 24 pin and 8 pin for CPU power plugged in). Also removed GPUs, sotorage, memory modules (one after another, each time trying to POST and then trying with just 1 module a different slot each time) to try and get any reaction from my system each time when I flip the switch on in the power supply (like psu fan, chipset fan, onboard LEDs).
Confirmed my PSU is working by shorting the green cable with ground and testing all the voltages with a multi meter (fan was also running).
From where I’m standing either CPU or the Motherboard has to be causing the issue (which isn’t even half a year old). Only thing left to try is reseating the cpu but I very much doubt that’s going to help.
Picture of motherboard in its current state is attached if that helps with diagnosing (I know that it’s kinda dirty/covered in dust). 24 pin and 8 pin (not visible) is still plugged in, RAM I’m constantly swapping in/out when attempting to power it on and get any reaction from it.
What I’m trying next is my new RAM in my old board (Z270/6700K) and then removing the board from the case which will take some work because of the AIOs (360 mounted top, 120 back from GPU).
Open to any suggestions. Thanks in advance.
For my hardware configuration see my hardware picker link