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Question Dodgy pc boot - would like help troubleshooting


Oct 13, 2012
Hello all,

I've recently bought a new mobo cpu and ram to upgrade from my old set. I have kept the PSU, SSD, HDD and GPU.

My set up at the moment:

CPU: Ryzen 3600
Mobo: MSI B450 Tomahawk MAX
RAM: 16gb 3200Mhz

PSU: OCZ 600W Bronze
SSD: 250GB Samsung Evo 850
HHD: 1TB WD Blue i think
GPU: Palit geforce 1070ti

OS: Windows 10 Home (upgraded from Win 7)

On attempting to use the new combo, it turns out that the new ryzen doesnt support windows 7, so during the new install I had to upgrade to windows 10. To confirm this was an upgrade to the windows 7, not a fresh installof window's 10 on a new SSD.
A little while later I started to notice that my PC would turn on, fail to boot. So i'd then reset it, it would then say that no boot media was found. I'd then reset once again, and it would boot to windows 10. It seems to have done this ever since and it's pretty reliable in its unreliability.

I was going to start to trouble shoot this but I recognise that a lot has been changed at once so would like some advice.

It feels like a software issue, but it could also be a SSD issue, or a Mobo issue. I was wondering how best to start.

Many thanks in advance. Dave.