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HP ProBook 640 CPU Upgrade Options


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I'm waiting for my new HP ProBook 640 to arrive (I know - it's already a year old!). It only comes with a dual core processor, so from both (a) thermal structure and (B) BIOS point-of-view, can the HP ProBook 640 handle a (47W or 57W) Quad Core processor?

The service manual says the max CPU you can put in the HP ProBook 640 is an Intel Dual Core i7-4600M 2.80-GHz processor (3.0-MB L3 cache, 37 W) 737330-001:

http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c04030196-1.pdf

But from a physical socket point of view, I can put in an i7-4940MX:

post-19997-14494999233299_thumb.jpg

Is the heat from the increased TDP the only problem? Or will the BIOS throttle the CPU down to 37W?

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