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What's DOS?
Posts: 3
Registered: ‎05-15-2012
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E520 1143-8NG CPU upgrade



I'd like to know if it's possible to upgrade the cpu to i5 or i7? How could I know if the chipset is compatible or not with a certain cpu?

Posts: 955
Topics: 3
Kudos: 80
Solutions: 65
Registered: ‎01-05-2010
Location: INDIA
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Re: E520 1143-8NG CPU upgrade

Hello wang and welcome to community,


You can upgrade the processor up to Intel® Core i7 Processor i7-2620M with dual core (2.70GHz), 4MB Cache



Best Regards,


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Posts: 20,913
Topics: 128
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Registered: ‎12-19-2008
Location: Australia, Melbourne
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Re: E520 1143-8NG CPU upgrade

actually you can use the standard voltage generation 2 (Sandy Bridge) i5 and i7 CPU.

At the current moment the i7-2640m is the highest supported.

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft