If a slot can supply 60W and you ask for 75W, what happens?

If you put a 75W GPU into an mxm slot rated for 60W, what will happen?

Will the GPU have to just do it's best with 60W or would it somehow be able to draw 75W?

 

I think it would either pull more than its supposed to and start overheating resistors/capacitors and eventually frying something on the motherboard, or will generate errors when it actually has to use past 60 watts and won't get anymore past it.

Or everything will work fine and you worry about nothing.

 

That is what I'm worried about, since I can hear whining noises and buzzing from the notebook when I run the card at it's stock speed and try to run any 3d app.

If I underclock it, I don't hear any noises.
With my old 9600m GT, I didn't hear anything either.

I don't remember if there was that same noise while using a 9800m GS, I didn't pay attention.

So far while running 3dmark06, furmark and atitool I didn't get any errors.

That would really be great

 

Well there are many componants involved in a slot.

If the slot suggests certain figures but you design in the capacity for 75W then you should be fine.

Lets cut to the chase here:

Will the Nvidia 480M GTX just burn out? Can I use this to dismiss the nvidia chip?

No.

If you use higher quality componants on the PCB of the card, design in better power delivery to the slot then those power tabs on the connector will be fine and even make sure the slot itself maybe exceeds spec in terms of quality.

This is going beyond the fact that in any spec there is "give" some leeway to exceed design parameters.