Mixing memory modules of different sizes in a Mac Mini

I have a MM Intel Core Duo with a 1.66GHz processor and 512 MB 667 MHz SDRAM. Model Macmini1,1, 32 Bits, SMC Version (system): 1.3f4.
Anybody know if you can mix memory modules in it? I have the standard 256 modules (2) and would take one out and replace it with a 1 GB one. Can this be done?
Thanks

+Anybody know if you can mix memory modules in it? I have the standard 256 modules (2) and would take one out and replace it with a 1 GB one. Can this be done?+
Yes, you can do this. You will get a slight performance hit on video, but that will be more than offset 99% of the time by the extra RAM reducing overloading of the Virtual Memory system.
However, it is enough work to replace the RAM and RAM is cheap enough, that I'd recommend putting in two matched 1 Gig modules instead.

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Hi,
I have two 2 GB memory modules that I pulled from my Mac Mini.
Since they are just sitting around, I am wondering if I add them to my iMac that has two empty slots, will give me any performance boost.
The iMac currently has two 8 GB memory modules.
Adding two the 2 GB would make the total go to 20 GB.
Will this help in any way?
Is there a certain order in which I should install these modules?
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We cannot say without know the exact model of the Mac Mini. Even though RAM modules may have the same form factor and number of pins, you cannot use RAM rated at a lower speed than that of your iMac's RAM.
You iMac requires 204-pin PC3-12800 (1600 MHz) DDR3 SO-DIMMs
Late 2012 and newer Mac Minis use the same RAM. If the Mini is older, the RAM will not work.

Can i use 2gb memory in one slot in my 2006 Mac mini as the 2 slots of 1gb only reports only 1gb memory, both memory work ok in the one slot

Can I use 2gb memory in one slot in my 2006 Mac mini as the 2 slots of 1gb only reports as 1gb memory, both memory work ok in the one slot as I have swapped them over

To my knowledge 1GB modules are the max. size for the 2006 Mini.
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Dear Hardware gurus,
I have a 12-Cores Westmere. Do you know is it possible to mix different memory modules on it, namely:
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+
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Kappy, thanks for the note.
I am actually going to order some more 1333 modules, but just for the short time I have to work with what I have currently (see my original post).
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If there are only two modules in the computer, one goes in slot 1 in each riser. Otherwise, matched pairs go in slots 1 and 2 of each riser, and when those are filled, in slots 3 and 4.
If the computer came with just two modules, one must be moved to slot 2 of the other riser when adding more memory. If it came with more than two modules, you don't have to move any. You will get best performance if both risers match, but don't remove modules just to make them match. More memory is always faster.
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Can I mix memory modules?

I have some memory modules left over from various upgrades and I would like to use them to upgrade my daughter's iMac which is a 2.0 GHz machine using 667 MHz DDR2 SDRAM PC2-5300. I have 1 Gb of that memory from wife's iMac which is the same model but I also have 1Gb of 800 MHz DDR2 SDRAM 6400 from my own 2.4 GHz iMac. Can I install them together in my daughter's machine? If I can't mix them, will the 800 MHz run in it on it's own and would there be any benefit?
I also have some 667 MHz 5300 from my laptop which appears to be the same as that in the 2.0 GHz iMac. Can anybody confirm that? Finally, is there any risk in trying any of the above?
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Teufelhunden,
Hi I know you're new so let me try to educate you a little. First is trying to ask a question in someone else's thread is considered rude, it's called thread jacking. I'm sure that wasn't your intent though. Next is if you see a green star by a thread that indicates it has been answered so posting a question in a thread that has already been answered probably isn't even going to be looked at.
I would recommend opening your own thread and I'm sure you will get some people more than willing to answer your question. If I see it I'll help you too! If you need assistance on how to create a thread click above where it says "Expanding your Intel-based iMac" and then you will see a link called *Post new Topic*.
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Been using my 2011 Mac Mini since October 2011 with no issues at all. upgraded the Ram (2 x 8 =16gb crucial ddr3 1333 sodimm 204) which worked flaulessly since early 2012.
last week while workign on some ram intensive stuff my mac froze and made some funky sounds (kinda like C3PO beat boxing) and then would not reboot and beeped at me 3 times. I looked that beep up and it indicated a ram issue. I took out the first stick (closest to the twisty lid) and the mac boots indicating an issue with the bank i guess not the ram.
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Welcome to Apple Support Communities
If you have checked with both RAM modules that your Mac doesn't start up when a module is inserted in the first slot, this slot is damaged.
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See here for the tech specs: http://support.apple.com/kb/SP29
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Mixing memory modules of different sizes in a Mac Mini

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