Hardware If you put a 45w chip where a 35w chip used to be can it fry your board

Dominator211

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I have an old Toshiba laptop at seems to be running a little sluggish lately and it's old enough to the point where the processor is not side of town so I see that it can support a i7 740m and I was just curious since they fit in the same socket could I upgrade it with a Qm chip since the TDP is different I'm not sure if we will have any ill effects
 

giovany86

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Give it a try, i changed my Old Core 2 Duo P7350 to a P9600, they both are 25W but if i wanted to i could have put a P9900 wich is 35W TDP and no risk for the board except highter temperature on CPU (but cleaning the rad and changing thermal paste should fix this if it happend) :)
 

mezz0

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A higher TDP chip will cause more heat. Aside from that, if it really is the correct socket it should work.
If the laptop was originally sold with the higher TDP chip, you should be able to swap your old one for the new one without issue.
If in doubt check intel ARK for both the cpu's and see if there are any breaking issues (such as your old CPU having the menory controller in there, instead of on the motherboard).
my 5 ct :)
 

The Real Jdbye

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Normally you can get the same model with different configurations, where they simply use a different chip, but keep the same cooling to my knowledge.
So the cooling in your laptop might be capable of cooling a higher TDP CPU, but if your configuration is already the top of the line CPU of that model, the cooling might not be up to the task and you might get overheating/throttling issues under load.

But no, it's not likely to fry your board. Worst case scenario you will have overheating/throttling issues as mentioned.
 

Ryccardo

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If you choose to undervolt (and I think the "i" series is hard or impossible to, compared to Core 2s) you can significantly reduce the heat output (which is declared as worst case scenario outside of unauthorized overclocking/overvolting)
 

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