Lightning damage

[Trizik]

Lightning struck my house the other day and damaged my cable modem, router, and one of my computers as they had no surge protection. My other computers had surge protection and are perfectly fine. The computer that did not have surge protection makes a strange ticking noise from a black plastic cylinder on the motherboard during boot. The onboard network port no longer works.

I had to replace the cable modem and router to get my network back online. The computer that had no surge protection can access the network with a separate network card but not with its onboard network port.

Do you think the lightning damaged the computer's power supply or motherboard or both?

 

[PurdueRy]

Probably both. The "black plastic cylinder" is probably a capacitor

 

[Trizik]

It doesn't look like a capacitor. It has a hole on top that almost makes it look like a mini speaker, something that you might see on a modem. Here's a pic of it:

http://www.mahalos.net/2006-03-21-12-46-48_rs.jpg

I'm hoping it's not the motherboard but considering everything except the onboard network port works fine (as far as I know) I'm guessing it probably is the motherboard.

Thanks for the reply.

 

[PurdueRy]

I think that is the PC speakers but its tough to tell from the pic.

 

[boomerang]

That is the speaker.