OT. Thanks @57Charlie. I have a 2012 Macbook Pro, due for an...

OT. Thanks @57Charlie. I have a 2012 Macbook Pro, due for an update, I bought an extra 4GB of RAM from aliexpress whilst I was in Africa as getting anything else to where I work has a high chance of it going missing. Chinese packages seem to move through without drama. Just landed in Bangkok last night and have been a little concerned plugging the chip in just incase it releases that smoke they lock into your electronics at the time of manufacture. I will plug it in tonight and see how it goes, if the smoke comes out, at least I am in a location to buy a new laptop which was on the cards anyway due to the age of my current one. This new chip will only give me a total of 8GB of RAM though so still short of your 16GB. May still buy new even if the smoke stays inside