GPU boots only if i keep trying for 10-15 minutes

[failaip12]

PC Specs:

 

AMD Ryzen R5 3600-only a month old as it died once

MSI B450 Gaming Plus-latest BIOS-2 years old
16GB DDR4 RAM 3200Mhz-2 years old
RX470 4GB-used mining GPU got it 8 months ago
1TB HDD + 500GB M.2 970 Evo Plus
Acer KG241 24'' 1080p 144Hz

Everything at stock speeds, except XMP.

 

The problem:

At some point after i got the GPU while booting it would not POST for 2 minutes and the light on MB would be on for GPU but after some 2 minutes it would boot just fine(while booting gpu fans would start and stop in same intervals), though i noticed the time slowly getting longer. The GPU otherwise was working just fine even playing more intensive games and temps were fine(always lower than 80 C). After some time i tried to turn on PC and went to eat, 20 minutes pass and it didnt boot with GPU lamp on MB on, i tried again and same, so i decided to turn it on wait 30 sec and if it didnt boot turn it off and try again. After about 5 minutes of trying it booted and i just thought that id never turn it off again . Git evry unlucky and the next few nights had constat power outages but with the technique the PC would turn on every time in about 5 min. A few days ago after 32 days of uptime Windows completly stopped responding so i had to restart, this time though it took me 15 mins to boot.
Does anyone know what i can do to fix this or at least mitigate it a bit cause i cant buy another GPU right now.

[Bad5ector]

If it were me, I'd replace PSU with known good one and see if problem persists. If it does, the order of what I would suspect next would be graphics card>motherboard>other addin cards>CPU.

[failaip12]

Sorry for the late reply it seems the GPU was not a problem I replaced it with a friend's and put my GPU in his PC and it worked good in his PC however on my side the same thing happened. As I can't really test any other part now should I just gamble and get a new MB as I don't think it's PSU as it's only few months old. 

[ProximaOfZeal]

Since you already have a friend with a PC that can handle your GPU, frankly speaking it'd be best if you could borrow his PSU to test your setup. I used to have a problem where the PC was refusing to boot unless I kept trying for a while, and once it booted, it worked normally. I chased the problem by replacing/removing every single part to no avail, until I replaced the PSU (which I did last, because I was convinced it's ok since it was a recommended brand and model and not some random blacklisted box) - and then the problem magically disappeared.

[failaip12]

I fixed the problem after trying every part it turned out it was the SSD, once removed everythingg works perfectly. Weird.

[Just that Mario]

On 10/28/2021 at 7:47 PM, failaip12 said:

AMD Ryzen R5 3600-only a month old as it died once

It died once? huh?

Don't you have OS on the SSD?