Mobo or cpu gone?

[djcoleyb]

hi guys.
i have been building computers for years and the other day i was inside a laptop witht the mobo exposed repairing it when i dropped my screwdriver and it fell on the keyboard connection pins (i think) and it must of crossed because a spark flew out and it cut out.

it didnt smell like anything blew,
cant see any viisual damage.

so im in a dilema.
i now dont know if its the mobo or cpu.

any advice?

thanks

 

[Dark Lord of Tech]

I would say the board!

 

[Pyree]

So forgot to remove battery and let static drain from the circuit before working could happen to experienced desktop builders. Well, perhaps I should stop encouraging people to open the inside of their laptop. It can be any number of thing but I think the most likely is the battery protection circuit.

 

[djcoleyb]

So forgot to remove battery and let static drain from the circuit before working could happen to experienced desktop builders. Well, perhaps I should stop encouraging people to open the inside of their laptop. It can be any number of thing but I think the most likely is the battery protection circuit.

well i had it plugged in and running as i was testing something and i stood up and the screw driver fell onto the board. its not that i dont know what im doing it was just an accident

 

[Pyree]

Never mind now. The solution is more important. Did you try running it plugged in without battery?

 

[bachok83]

I would bet on the board too.

Logically, the board+cpu design is meant that they should stay separate, in case anything happen.. stuff like this, electro-static-discharge, etc.

Unless you see a dark spots on the CPU pins/package itself, it is unlikely to be CPU.

I once (gimme a break, i was a kid once ) pulled out pci-bus modem while desktop machine is running.. Yes, it was running, and i shorted isa-bus sound card. The sound card's chip exploded with a big hole in the middle of it.

But the rest of the parts worked fine still after that.