Inserting a new ram in my mac that wont go in all the way
I bought two 4 mb Ram memory cards in order to upgrade my Mac which is using two slots at the moment the top ones. When I tried to insert the new cards they wouldn't go all the way in although I heard a click.
I tried several times repeating the same procedure but no result. The cards were the right way up , I did everything by the book.
Please tell me what else to do or haven't done. Help 😊
Thanks
iMac, macOS Sierra 10.12.6