PC Disaster! please Help!

Hi guys

We just had a thunderstorm but switched off the PC on the unit and at the wall, but not immediatetely, after couple minutes.

Just gone to switch it back on (using old dodgy laptop), and the unit shouts an audio message "system failed CPU test".

No boot up, nada.

Any ideas? Was it the thunderstorm`?

Is she completely dead_ Can i replace the CPU_which bit is the CPU.

thank you in advance.

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