Question Trouble starting up PC

Viccehh

Honorable
Feb 17, 2017
9
0
10,510
My self-built computer has a problem with starting up. This problem started about a month ago and I've had the computer for about 3 years with some parts exchanged in the meantime.
The thing is if I unplug the PSU and leave it out for a while, then plug it back in, it somehow works again. Only after leaving the computer off overnight, the problem appears again the next day & I have to unplug, wait, plug back in to get it to start.

I thought it might be a PSU issue but I replaced it less than 1 year ago bc the old one died..
Also I recently added 16gb RAM (2x 8gb slots), to an existing 8gb RAM (2x4gb slots) which were the same chipset & Mhz. I thought maybe somehow this is causing a problem but removing one set didn't solve it.

Thanks in advance for any help :)

My system:

Mobo: Z270 TOMAHAWK (MS-7A68)
CPU Intel(R) Core(TM) i5-7500 @ 3.40GHz, 3408 Mhz
GPU Radeon RX 480 8gb
PSU: Cooler Master MWE Gold 550 Full Modular
RAM: 16 GB TridentZ RGB DDR4 2x8gb 3200Mhz
SSD: Samsung Evo 250GB
HD: Seagate Firecuda 1TB
 
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