I just finished building a computer, but the screen won't stay on for more than ten seconds

[phillpower2]

Sorry ,should have asked if you have the SD/USB adapter in when the BIOS screen turns off.

If the adapter is not plugged in it suggests one of three things, the previous BIOS update was bad, something is shorting out or the CPU is bad/overheating.

If the adapter is plugged in when the BIOS screen turns off, remove the adapter, restart to access the BIOS and see if the behaviour changes.

Got to head out for a couple of hours but will check back later.

[Jaxson_Buckman]

It did it even before I even tried to install Windows and before I updated the bios, so it’s down to either shorted motherboard or overheating/bad CPU, the motherboard was brand new, so it’s most likely the CPU as it was from an old and no longer used gaming pc, and the condition of it was unknown, I’m not sure if it’s over heating, and I’m pretty sure I applied the thermal paste correctly, and I’m not sure why it would be overheating, but I still can’t rule overheating out either

If overheating, it may be fixable, but if the CPU is bad, I will need to get a new one, how would I test if it were bad?

[PeterOz]

Can i ask 1 question
is the cpu fan working

[phillpower2]

Have to hold my hands up here and admit to misreading/misunderstanding what has been happening right from the outset, example;

Right now, I’m installing the newest BIOS on it because that might be the problem

I pressed F11 to go to the boot menu and to boot off of my usb drive to download windows 10, but after I do that, no video signal will show up

Well, the barebones setup works and the screen turns on, but where do I go from here?

Having again read the thread from the OP I can see now that this hodgepodge as you put it has in fact never worked and that you did not mean that you got the no signal message once Windows had been installed, if this latest assessment is accurate then you will have your answer below;

The CPU is most likely ok but it is never going to work in the MAG B550M BAZOOKA and there is one very good reason why not, the CPU is only a second gen Ryzen 7 whereas the MAG B550M BAZOOKA is only compatible with third gen Ryzen CPUs onwards, you can check/confirm this here

[Jaxson_Buckman]

Can i ask 1 question
is the cpu fan working

Yep

[Jaxson_Buckman]

Well then, if that’s so, then I guess the story ends here, and I’ll have to get a new CPU

Any cheaper recommendations on 3rd gen Ryzen CPUs, because I think I’ll get a Ryzen 7 3700X, but what do you think?

[phillpower2]

Well then, if that’s so, then I guess the story ends here,

Indeed it does but only on your behalf, I’ve still got work to do