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    Lenovo Y400 Processor Upgrade

    Discussion in 'Lenovo' started by alexpolska, Jun 15, 2014.

  1. alexpolska

    alexpolska Newbie

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    Does anyone know if the y400 with an i7-3630QM could be upgraded to an i7-3940XM? I'm pretty sure it can go all the way to an i7-3820QM, not sure though about the 3940XM. A quick search on Intel shows both the 3630QM and 3940XM support the same socket type: FCPGA988. Check the link here:

    ARK | Intel® Core™ i7-3940XM Processor Extreme Edition (8M Cache, up to 3.90 GHz)

    Only notable differences are the Max TDP of the 3940XM is higher than the 3630QM at 55w vs 45w. As far as I'm concerned, this just means the 3940XM can potentially draw more power (duh), which could lead to overheating at times. Nothing a good cooling pad and cpu-core temp can't help me control. The other difference I noticed is the listed PCN/MDDS information differs between the two. "SR0US" for the 3630QM and "SR0UX" for the 3940XM. I assume these are just technical specifics to identify and classify the different series of processors.

    As far as I can tell, the 3630QM can easily be swapped out with a 3940XM; main thing being that they share the same socket type. Anyone care to share their thoughts? I'm looking to upgrade, thanks!