Incorrect . There is no "OEM "version of windows 8 . There is a "home user license " that lets you activate on 3 computers [ though only one at a time] .
7 would be a coaster , 8 is good to go but as stated unless the board is identical you will probably have to reinstall .
A board with an identical chipset might boot but likely the device drivers will need sorting out . Sound, LAN , etc etc may not be identical and will need new drivers from the new mb disk
don't bother buying a new os unless you find you definitely need to, from my experience in the past you won't need to.
Can I transfer the software to another computer or user? You may transfer the software to another computer that belongs to you. You may also transfer the software (together with the license) to a computer owned by someone else if a) you are the first licensed user of the software and b) the new user agrees to the terms of this agreement. To make that transfer, you must transfer the original media, the certificate of authenticity, the product key and the proof of purchase directly to that other person, without retaining any copies of the software. You may use the backup copy we allow you to make or the media that the software came on to transfer the software. Anytime you transfer the software to a new computer, you must remove the software from the prior computer. You may not transfer the software to share licenses between computers. You may transfer Get Genuine Windows software, Pro Pack or Media Center Pack software only together with the licensed computer.
from microsofts oem license :- http://personaluseli...US/default.aspx
didn't know they'd changed the terms since win 8 myself till now, just knew i've never had a problem re-activating an os with a simple phone call at most.
Edited by terry1966, 01 March 2015 - 10:04 AM.