TS2570 My Mac Book Pro will not start up.  I ran the AHT and received the following error:

My Mac Book Pro will not start up.  I ran the AHT and received the following error:  4SNS/1/40000000:Th0H-90.750.  Anyone know what this means?

I have no idea how much it will cost to repair. I don't even know what the exact problem will prove to be. It may be quick if it isn't a motherboard problem. I just don't know. Take it in for a service diagnostic, then they can tell you what is involved.

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