Mac Desktops forum


Mac Mini 2010 RAM upgrade. 1 module ok ?

by nashonashonasho / June 22, 2011 2:59 PM PDT

Hi ,

I bought today one 4GB DDR3 1333 MHz memory module.

I was told that 1333 instead of 1066 MHz is OK because the ram will just run slower..

But is it OK to have only one RAM module ? Or shall I keep one of the original 1GB module in there? (to make a total of 5 GB).

Reason I'm thinking of going 4GB instead of 5GB is that I heard that the mini is not good beyond 4GB . Is this true ?


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All Answers

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Memory modules are usually installed in matching pairs,
by mrmacfixit Forum moderator / June 22, 2011 9:59 PM PDT

2 X 2GB to give you 4GB

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It should work
by Jimmy Greystone / June 22, 2011 11:08 PM PDT

It should work. The matched pairs thing is more of a best practices thing these days, it's not really required like it used to be. It does impact dual channel memory operation, and you will most likely lose out on that particular feature if you go with a 1x4GB 1x1GB setup, but I would expect that the performance boost from the extra RAM would more than compensate now that the system doesn't have to hit the HDD as often. Dual and even triple channel memory have long been solutions in desperate search of a problem anyway. On a Mac Pro you might notice the performance difference, but I doubt you'd ever be able to tell on a Mini.

I'm too lazy to look up what the max amount of RAM for the 2010 Mini is, but suffice it to say that one of three things will happen:

1: It works exactly like you hope, you see 5GB of RAM when you go to About This Mac
2: That 1GB module is ignored, and you only have 4GB of RAM
3: The system will not boot until you remove one of the modules

Fortunately the new Minis have a very easy to access design, unlike all previous models that required some careful putty knife work. If you run into situation #3, it's pretty quick and easy to open it back up and remove one of the modules.

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Max RAM on the 2010 Mini is;
by mrmacfixit Forum moderator / June 23, 2011 12:38 AM PDT

2GB (two 1GB SO-DIMMs) of 1066MHz DDR3 SDRAM; two SO-DIMM slots support up to 8GB

direct from the Apple tech specs page

you just may be in luck with the 5GB


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