Which component could be damaged by magnetism?

My girlfriend accidentally put a 5000 gauss magnet on the keyboard, near the trackpad while the computer was running. Suddenly the computer broke down.

After that, i can turn on the computer and i only can see in the display an icon of a folder with that symbol on it "?". The hdd make an strange noise. I have replaced the hdd and i have introduced the instalation dvd in the superdrive, but when i turn on the computer the display still in white and nothing happend. I have tried to push "c" button for start from the dvd device but nothing happened.

I think that the keyboard could be damaged because the capital letters ligth doesn't work when i push it.

The rest of the computer seems to work fine. I can hear a normal noise and the display turn on...

Do you think that if i replace the topcase the computer could work again? Or maybe the magnetism could damage more components?

Thanks in advance!!!

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Have you tried holding down the option key when powering on? Sometime that will show boot devices when other options fail. It's also another method of troubleshooting the keyboard.

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The POST is such that it wants (actually instructed to search) to find a valid startup folder (what that graphic indicates is absent) if you leave it for a few minutes it should automagically poll the optical drive bus for a startup disk on its own, unless the drive is damaged.

If you have a boot disk on an external HD and the computer is not damaged it should find/boot from that.

I do not know what, other than the HD can be destroyed by magnetism,… but the keyboard circuitry, wireless card, optical drive and fans might all be within range.

If this answer is acceptable please remember to return and mark it.

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I was thinking about that...

Maybe if I install the mac OS in the hdd from my imac could work...I'll try.


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