I have an old Dell laptop an E6420 which I use for a couple of things and kids use it for some school practice programs. The LCD is now black. The computer works fine when I hooked it up to my bigscreen tv. I was looking for an easy fix. It is and intel i5. I noticed on ebay there are a few E6420's for cheap that have working LCDs but have other issues. I am curious if I buy one that has an intel i7 (no hDD, no cd drive ect.) if I could not only switch my LCD out but also switch my i5 for the i7 processor?