02-17-2012 03:45 PM - edited 02-17-2012 03:46 PM
I don't understand all the specifications associated with ram. Can someone tell me if this works? I insist on buying from amazon.
02-17-2012 05:19 PM - edited 02-17-2012 05:20 PM
I recently replaced my E420 original 2x2 GB with this 2x4GB kit from Crucial:
CT2337982 8GB Kit (4GBx2), 204-pin SODIMM Upgrade for a Lenovo ThinkPad Edge E420 System
My Windows Performance Index for Memory is now 7.4
Go to Crucial.com to get great information on RAM for your system. You can then buy from Amazon with better understanding.of what's best for you.
02-18-2012 07:48 AM
Crucial.com has a tool that will detect the ram you have installed on your TP. If it is 2 x 2GB, then you can just decide to buy 1 -4GB for 6GB total and keep the waste to a minimum. You can also try to sell your left over ram. All I can tell you is that I am very happy with my 8GB. I am keeping the extra 2 x 2GB as spares.