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Hi guys

So my PC lost signal on my monitor one time and I do not know why. What happens is that When I click on the ON switch it boots up for a second or 5 and then my pc turns itself off. The second time it seems to boot normally, but there is no signal on monitor

 

This is a list of things I have tried:

 

Tried a different HDMI cable
Tried a DVI cable
Tried another monitor
Replaced GPU by a new one
Changed RAM stick to other slots
(PSU being broken is small chance. Got a new one 6 months ago and I have about 120 Watts to spare)
I made sure all the cables are in there correctly.

This is a list of my specs:


Gigabyte Radeon R9 270X 2GB but now it is a Gigabyte GTX 1060 3GB
Ryzen 5 1500X
ASUS PRIME B350-M 
8GB RAM x1
1 HDD

620W PSU


So I do not know what could be wrong. Could it be the CPU or the is it the RAM stick. Or could it be my motherboard's PCIe slot. I have 1 x16 slot so I can not test it on another. All fans spin and the LED on my Motherboard turns on too.

Does anyone have an idea of what could be wrong and how I can fix it?

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