After power surge PC won't boot, still won't boot after replacing MOBO and PSU

[jdeegz]

Hi all,

 

I'm at a loss here, hope someone on here can help.

 

A few weeks ago my circuit breaker tripping caused my PC to not power on.

 

What would happen is that my MOBO would flash LEDs for a split second before turning off.

 

After looking online I replaced both the Motherboard and the PSU but exactly the same issue remains. 

 

I have removed the GPU and the RAM and the it still does the same thing.

 

Any idea here? I assume my CPU must be fried by process of elimination, but I am also wary of the cables with my case and if they're causing the problem.

[5x5]

Well, something is definitely dead. If you can't even enter the BIOS - it's pretty likely the CPU is fucked.

[SupaKomputa]

Build the pc outside the case with 1 stick of memory, no gpu for now.

[jdeegz]

1 hour ago, SupaKomputa said:

Build the pc outside the case with 1 stick of memory, no gpu for now.

Nope still nothing.

 

Assuming this is CPU or RAM?

[jdeegz]

1 hour ago, 5x5 said:

Well, something is definitely dead. If you can't even enter the BIOS - it's pretty likely the CPU is fucked.

Could it be something else like RAM or case power cable?

 

I've already replaced PSU and Motherboard so I assume it's not either of them causing this. 

[SupaKomputa]

put another cpu maybe?

it's really rare to see cpu died, maybe this my first time.

[Aragorn-]

have you unplugged everything? Hard drives, USB devices etc etc.

 

Start with just the mobo, cpu, cooler and PSU.

 

Nothing else.