What happens if I pull to much power of my PSU.?

 I've got a B class PSU (600W)  in my pc, now I'm buying the CoolerMaster V10, which uses 70W, what happens if it does seem to be too much? I blow up my PSU? What excactly happens then? And I do not really care about blowing my PSU, but I do care about the rest of my system, can that get damaged too?

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It should shutdown gracefully.

trucker her (author)  steveastrouk7 years ago
 Nothing else could possible happen?
If its half decent supply, it should shut down gracefully.
If not, the fuse will blow and the thing will smoke.
trucker her (author)  steveastrouk7 years ago
 I hope it's half decent then ;)