Some questions about upgrading RAM

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Brian24

20 posts

Geek

#102402 15-May-2012 04:57

I've got an iMac and I'm planning to upgrade the RAM myself. First of all, will this affect the warranty in any way? Secondly, can you mix different sizes of RAM? Its got 4GB RAM (2x2GB) - will there be any problems if I use 2x4GB in the remaining two slots or should i stick to another 2x2GB?

RunningMan

8954 posts

Uber Geek

#625247 15-May-2012 08:48

Should be no problem warranty wise with doing it yourself. Just make sure you take proper ESD precautions.

Different models have to have RAM installed in different combinations.

Suggest you check here for details.

OWC are generally accepted as one of the better/cheaper memory suppliers if you don't already have the RAM.

josephhinvest

1543 posts

Uber Geek

ID Verified

Trusted

#625279 15-May-2012 09:29

RunningMan: Should be no problem warranty wise with doing it yourself. Just make sure you take proper ESD precautions.

Different models have to have RAM installed in different combinations.

Suggest you check here for details.

OWC are generally accepted as one of the better/cheaper memory suppliers if you don't already have the RAM.

Agree re warranty and ESD precautions. Will likely be very simple to upgrade.
Should be no problem mixing and matching, may be best to keep in pairs, but this depends a bit on the model.
I would think you should do it probably like

Front side of iMac
4 gb 4 gb
2 gb 2 gb
Rear of iMac

As the slots are usually populated across ways. It probably wont matter :)

Cheers,
Joseph

Mark

1653 posts

Uber Geek

#625373 15-May-2012 11:22

I have 2 * 2GB (the originals) and 2 * 4GB SODIMMs in my iMac .. no problems..

Just check you get speeds that are supported.

Mark

khull

1245 posts

Uber Geek

#625557 15-May-2012 16:23

I recommend keeping them in pairs too for the purposes of dual channel (all intel macs should support this)

Brian24

20 posts

Geek

#626610 17-May-2012 01:20

Thanks for the replies! As long as the warranty isn't going to be affected I'm happy!