Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > Desktops > iMac

Reply
 
Thread Tools Search this Thread Display Modes
Old Jul 21, 2013, 10:29 AM   #1
sap12690
macrumors regular
 
Join Date: Jan 2011
Adding Memory to Late 2009 21.5" iMac... Where can I buy it?

Ive been looking to add memory to my late 2009 21.5" iMac it currently has 4 gb installed (2gb in each slot) and has 2 slots open and free for more. My iMac is telling me I need "1067 MHz DDR3 memory module" I looked at the Apple Store but they dont have that memory available anymore. Does anybody know of a legitimate place where I can buy this memory. I just want to make sure its good memory and not something crappy that will mess up my computer.

Thanks
sap12690 is offline   0 Reply With Quote
Old Jul 21, 2013, 10:42 AM   #2
fa8362
macrumors 6502a
 
Join Date: Jul 2008
Count yourself lucky that Apple doesn't have it, because RAM sold through Apple is way overpriced. Buy your RAM from Crucial.com.
fa8362 is offline   0 Reply With Quote
Old Jul 21, 2013, 10:49 AM   #3
sap12690
Thread Starter
macrumors regular
 
Join Date: Jan 2011
Quote:
Originally Posted by fa8362 View Post
Count yourself lucky that Apple doesn't have it, because RAM sold through Apple is way overpriced. Buy your RAM from Crucial.com.
Do you know if i have to put in only 2gb into each slot because the other two slots that are already in use have 2gb or can I put in whatever i want
sap12690 is offline   0 Reply With Quote
Old Jul 21, 2013, 10:58 AM   #4
benwiggy
macrumors 68020
 
Join Date: Jun 2012
You can take up to 16Gb. Crucial will sell you memory for your model of computer. (ie, select your model of Mac on their website, and they'll show you what RAM they have that works with it.)

It generally considered best to pair the memory, (teeny speed advantage), though the benefit of having more RAM in asymmetrical sticks is worth more than having less RAM in pairs.
__________________
2012 MacMini, 2.6GHz i7, 16Gb RAM, Fusion Drive | 2012 MacBook Pro, 16Gb RAM, 480 Gb SSD |
2009 MacBook | 2006 iMac | 2003 G3 iBook | Beige G3 | PowerMac 7600 | Mac IIsi |
benwiggy is offline   0 Reply With Quote
Old Jul 21, 2013, 06:22 PM   #5
sap12690
Thread Starter
macrumors regular
 
Join Date: Jan 2011
Quote:
Originally Posted by benwiggy View Post
You can take up to 16Gb. Crucial will sell you memory for your model of computer. (ie, select your model of Mac on their website, and they'll show you what RAM they have that works with it.)

It generally considered best to pair the memory, (teeny speed advantage), though the benefit of having more RAM in asymmetrical sticks is worth more than having less RAM in pairs.
what do you mean by "best to pair", Would it be fine if i just buy one 4gb memory and add it one of the empty slots? That way it would have 3 taken slots. One 2gb, Another 2GB and the third 4gb
sap12690 is offline   0 Reply With Quote
Old Jul 22, 2013, 01:39 AM   #6
benwiggy
macrumors 68020
 
Join Date: Jun 2012
Ideally, you want to put 2 RAM modules of equal size in the remaining two slots .
So, 2, 2, 4, 4.

Putting in one module will work fine, though as said there may be some teeny speed disadvantage compared to matched pairs. But you gain better performance from having more ram anyway.

RAM is cheap and you can never have too much.
__________________
2012 MacMini, 2.6GHz i7, 16Gb RAM, Fusion Drive | 2012 MacBook Pro, 16Gb RAM, 480 Gb SSD |
2009 MacBook | 2006 iMac | 2003 G3 iBook | Beige G3 | PowerMac 7600 | Mac IIsi |
benwiggy is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > Desktops > iMac

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 12:18 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC