Z390 not booting

[Cybersamuraiiii]

So, I am replacing my intel board with a msi true gaming z390 board 

 

Back story

 

I have an hp omen with a i5 7400 and it turned of randomly on me and would do only spin the fans and boot for a second and turn off. I thought it was the power supply and it wasnt as when I went to swap my evga 850w brand new psi to it it melted a vrm chip exhibit A in the picture 

 

So I was getting a turn on instant turn off symptom

 

Well after it fried I went and bought a z390 board from msi to swap all my parts to. 

 

Has the same exact symptom

 

Ran basics, 1 ram stick, no gpu and just cpu attached. 

 

Same thing but if I remove the CPU, motherboard stays on like it should 

 

What are the chances that my board is DOA or am I looking at a cpu failure 

[Bombastinator]

High.  Same problem after a mobo swap means mobo was never the problem.  Pebkac might be if you’re trying to use the same settings.  What components did you swap over besides the CPU?  Any one of them could be bad.

[TheNamelessOne]

Thing is you're trying to use an i5 7400 in a Z390 motherboard. Those 2 are not compatible.

Yes, it's the same socket but it doesn't work. You need a 100 series motherboard with updated bios or a 200 series motherboard for that i5 7400.

Examples, Z170, Z270, B150, B250, H170, H270.

[Cybersamuraiiii]

15 minutes ago, Bombastinator said:

High.  Same problem after a mobo swap means mobo was never the problem.  Pebkac might be if you’re trying to use the same settings.  What components did you swap over besides the CPU?  Any one of them could be bad.

I swapped ram, cpu, gpu over

 

Symptoms still happens with 1 ram stick (doesnt matter which one.) 

No gpu 

 

This is breadboarded sitting on the box not in a case. 

 

If I I unplugg CPU power it stays on, if it have it plugged in it turns on for maybe .5 seconds turns off. 

[Cybersamuraiiii]

1 minute ago, TheNamelessOne said:

Thing is you're trying to use an i5 7400 in a Z390 motherboard. Those 2 are not compatible.

Yes, it's the same socket but it doesn't work. You need a 100 series motherboard or a 200 series motherboard for that i5 7400.

Examples, Z170, Z270, B150, B250, H170, H270.

I see I was looking at the LGA1151 and figured it was the same chip (still new to building cpus) 

 

 

So wrong processor for the chipset. I'll take it back and return it thanks man for the info, I was just trying to do a quick fix.