I am having an issue with one of my older secondary PCs. Running an i5-4670k, GTX 970, 16gb Ram, Asus Hero VI/Gigabyte Z87-HD3, 750w/1050w PSU.
A week ago, I had powered up my PC, went into windows like normal, opened up a program and my PC instantly crashed. I went to turn it back on, and got nothing, no lights no fan, no error code, just a click for power and nothing.
Things I tried:
Reset CMOS, Remove and switch Ram and slots, Remove GPU, Swap Power supply, try different outlet, even swapped motherboards. After the motherboard swap, I was able to get literally 1 second of fan spin/color etc then immediate shut down. This was on both PSU, and trying to start by using power button, and shorting.
The only thing I can think of now is a dead CPU, which feels silly since I never overclocked the CPU and it was under AIO where I monitored temps and everything seemed normal, and even when I peeled it off the paste was still totally normal, not dry at all.
I know this thing being 7 years old is almost ancient these days, I'm surprised it would just up and die after all this time.
Thanks for any extra help anyone can give!