New CPU Upgrade leading to PC not starting

[Davard]

Hey, ive installed a ryzen 2700x as an upgrade from my 1500x on a B350 tomahawk motherboard and im failing to even have the motherboard start up properly. The most i get are the motherboards lights glow for a split second before fading again. Ive replugged everything, resat the cpu 3 times now, cleared the CMOS and im just stuck for answers. Ive seen the answer of updating Bios floating around but I no longer have my old processor to do that with, and I was already at a newer supported BIOS version than stock so it shouldnt be a problem.

Any ideas or am I likely stuck with a faulty CPU?

[boggy77]

Should have updated bios to the latest version before replacing cpu. Try to take it to a pc shop, maybe they can upgade bios for you

[SupaKomputa]

Unless it's physically damaged, it's near impossible you got a faulty cpu.

This is bios related, you should update the bios before upgrading.

[Davard]

9 minutes ago, SupaKomputa said:

Unless it's physically damaged, it's near impossible you got a faulty cpu.

This is bios related, you should update the bios before upgrading.

I had updated the BIOS back in september, would i still need the latest version?

[SupaKomputa]

No, you only need the one with the second gen update.

So the september update should be okay.

Now do a bare minimum setup (CPU + 1 memory stick + gpu).

Check the diagnostic led or beep codes to find the error.

[Davard]

1 hour ago, SupaKomputa said:

No, you only need the one with the second gen update.

So the september update should be okay.

Now do a bare minimum setup (CPU + 1 memory stick + gpu).

Check the diagnostic led or beep codes to find the error.

I cant get the motherboard to power for longer than half a second so I cant get it to output any diagnostic codes