is this the best choice for in imac, 27 inch, late 2009 (currently has 4GB
1374979
As long as what you order is Kingston part number KTA-MB1066K2/8G it is compatible with any of the Late 2009 27" iMacs (Core 2 Duo/i5/i7's).
1374980
Mine is a Early-2009 27" and that's what I used. Bumped it up to 8GB, reloaded Mountain Lion and now it screams like a brand new machine. Can't imagine needing to upgrade the hardware anytime soon. Great deal.
1738017
According to what I found out The 21.5 inch iMac does not have the ability to change out the RAM if you want to upgrade. But do not take my word for it. Do some research as things change so rapidly with computers, as you know new os'es are coming out faster each year. New intel chips too with imacs etc. It wont be a bad idea to talk to apple about this question as well. You can log on to their apple store website and launch a chat with a rep and ask this same question they might guide you to the best imac for you that may be able to upgrade or you never know this imac now may be able to upgrade as I said changes happen quickly to many of these devices that its hard to keep up. Speaking to a representative at apple will help you as well. I hope this has been at least some guidance for you. Good Luck with your search and your purchase.
1942867
Depends how old your Mac is. If it only supports 1067MHz I believe the maximum you can put on it is 2x 4GB modules, so a total of 8GB max.
1558602
Hi I found some info on Apple:Memory specificationsThese iMac computers have two side-by-side Synchronous Dynamic Random-Access Memory (SDRAM) slots in the bottom of the computer.The maximum amount of random-access memory (RAM) you can install in the computer is:Computer Memory Type Maximum MemoryiMac (Mid 2007) DDR2 4GB (2x2GB)iMac (Early 2008) DDR2 4GB (2x2GB)iMac (Early 2009) DDR3 8GB (2x4GB)with this specs I think that this memory ram doesn´t fit on your IMAC. I think that your IMAC supports up to 8 gb memory ram so you can buy these 8GB 2X 4GB PC3-8500 1067MHz DDR3 APPLE RAM MEMORY SODIMM 204pin (PARTS-QUICK BRAND) You have to be sure that these fits your IMAC, I think that these fits well Hi I found some info on Apple:Memory specificationsThese iMac computers have two side-by-side Synchronous Dynamic Random-Access Memory (SDRAM) slots in the bottom of the computer.The maximum amount of random-access memory (RAM) you can install in the computer is:Computer Memory Type Maximum MemoryiMac (Mid 2007) DDR2 4GB (2x2GB)iMac (Early 2008) DDR2 4GB (2x2GB)iMac (Early 2009) DDR3 8GB (2x4GB)with this specs I think that this memory ram doesn´t fit on your IMAC. I think that your IMAC supports up to 8 gb memory ram so you can buy these... » Read More Hi I found some info on Apple:Memory specificationsThese iMac computers have two side-by-side Synchronous Dynamic Random-Access Memory (SDRAM) slots in the bottom of the computer.The maximum amount of random-access memory (RAM) you can install in the computer is:Computer Memory Type Maximum MemoryiMac (Mid 2007) DDR2 4GB (2x2GB)iMac (Early 2008) DDR2 4GB (2x2GB)iMac (Early 2009) DDR3 8GB (2x4GB)with this specs I think that this memory ram doesn´t fit on your IMAC. I think that your IMAC supports up to 8 gb memory ram so you can buy these 8GB 2X 4GB PC3-8500 1067MHz DDR3 APPLE RAM MEMORY SODIMM 204pin (PARTS-QUICK BRAND) You have to be sure that these fits your IMAC, I think that these fits well « Show Less
90585
Hi, I also have mid 2009 macbook Pro, what can I use to upgrade the 2gb (original) memory? thanks
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Im not sure about early 2009, I have a late 2009 imac 3.06 GHz Intel Core 2 Duo and this ram worked great.
1140377
You have to choos. Only one at time. But. This is realy good for run your OsX.Mi iMac 2014 run faster runing from ssd atached to it.
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I've replaced hard drives with SSDs in 7 iMacs spanning from late 2010 to 2012 and this worked in all... should be fine.
92374
Absolutely !!! and it is generally a free upgrade. I am running OSX10.9.5 and my iMac is a 2009
999437
yeah man, this will 100% work. your machine tops out at 8GB though **according to Apple ;)
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Yes. Bear in mind that the pre-2010 iMac models do not have an add-on option if I recall correctly, meaning that you will have to completely replace your previous HDD (or SSD if you had previously replaced it). If you are confused about the installation process, here is a great link that gives an overview of the steps necessary:http://forums.macrumors.com/showthread.php?t=842548Likewise, it never hurts to check with the manufacturer since they are the ones who give you your warranty on products. Check with Mac and/or Crucial tech support if you have any specific technical questions that you may have. Yes. Bear in mind that the pre-2010 iMac models do not have an add-on option if I recall correctly, meaning that you will have to completely replace your previous HDD (or SSD if you had previously replaced it). If you are confused about the installation process, here is a great link that gives an overview of the steps necessary:http://forums.macrumors.com/showthread.php?t=842548Likewise, it never hurts to check with the manufacturer since they are the ones who give you your warranty on products. Check with Mac and/or Crucial tech support if you have any specific... » Read More Yes. Bear in mind that the pre-2010 iMac models do not have an add-on option if I recall correctly, meaning that you will have to completely replace your previous HDD (or SSD if you had previously replaced it). If you are confused about the installation process, here is a great link that gives an overview of the steps necessary:http://forums.macrumors.com/showthread.php?t=842548Likewise, it never hurts to check with the manufacturer since they are the ones who give you your warranty on products. Check with Mac and/or Crucial tech support if you have any specific technical questions that you may have. « Show Less
1280948
Yes, but the quality of these are very iffy. I have a 2009 iMac and these did not work very well. Several of the memory chips failed within the first year. You may want to look at the crucial brand.
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My Imac is an older version too and I bought this hard drive and I love it. I have no problems with it at all. It is top of the line I think. I highly recommend it!
340364
Well, it worked for me. I have 2008 imac. I ordered 4gb memory(2 chips). I pulled old memory out n inserted the new memory, one at a time. I turned on the computer n i could see the increased memory right away in drop down menu "about this mac."
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The 2013 27" iMac has 4 memory slots, the ram from the factory will fill two of the slots. If you are adding ram you will add the new modules to the open slots. If you are replacing the original ram, remove it and and replace with new modules. Once you have the ram bay open it is pretty obvious.
842139
It most likely will work. The best way to determine your memory type is to click on the Apple icon and then click on About this Mac. It should show you the type of memory that is required. I would say that most likely memory for 2006-20007 era iMacs will utilize the same memory as long as you have a duo2 core processor.. Just follow my steps and let me know if you have other questions.
1098039
Hi Leonardo,The Early 2006 iMac only supports up to 2GB of memory using two 1GB memory modules. This 4GB kit is not compatible with it as it would not recognize the 2GB memory modules. To max out at 2GB you can use part number KTA-MB667K2/2G which is a kit of two 1GB memory modules.Thank you for choosing Kingston memory!-Jewel, Kingston US Technical Support