Chosen Solution
My 2010 Mac Mini started beeping after powering up when I replaced the original two 1 GB SODIMMS with two 4 GB SODIMMs. It will work if I use only one of the new 4 GB together with one of the old 1 GB. One 4 GB by itself doesn’t work. Why doesn’t it work with both 4 GB chips, but works with mismatched RAM? 5 GB is working fine and speeding things up considerably, but is there a way I can make my Mac use all 8 GB? Thanks!
Let’s test both the RAM and the slots. Use the one working 4 GB stick by itself and boot the machine with it in each of the slots. Now try it with the other stick. By now you should know if it a bad stick or bad slot. Get back to us after this and tell us which it is and if a slot , which slot.
This is a known issue with the 2010 Mini. I haven’t found a solution, and the most I can get to work is 2GB+4GB.
