Install in pairs for best performance. The key to performing an iMac memory upgrade is selecting the proper RAM type. Use Small Outline Dual Inline Memory Modules (SO-DIMM) that meet all of these criteria: iMac (Mid 2011) iMac (Mid 2010) iMac (Late 2009) PC3-10600: PC3-10600: PC3-8500: … © 2020 CNET, A RED VENTURES COMPANY. Systems that support DDR4 memory technology, like the latest iMacs® , can get quicker responsiveness with faster speeds, bandwidths, and performance. MacBook Pro; iMac; … Here’s the page for my MacBook Pro. iMac Pro: RAM isn't user-accessible. Make sure you let the memory initialisation complete. Next-level. Adding extra memory to a 27″ iMac is one of the easiest internal upgrades that you can perform. 16 GB (8GB x 2) $70.88 Learn more: Buy Now: 32 GB (8GB x 4) $139.88 Learn more: Buy Now: 32 GB (16GB x 2) … DIMMs with heatsinks are not supported and may damage the DIMM mechanism. Thank you for being a valued part of the CNET community. save hide report. Up to 128 GB 2666MHz memory. If you want to see more details, you can open System Report and click the Memory tab. In the Activity Monitor app on your Mac, click Memory (or use the Touch Bar) to see the following in the bottom of the window: Memory Pressure: Graphically represents how efficiently your memory is serving your processing needs. I want to expand the memory in a 27 inch iMac (late 2012). You can see the guide to replacing the SSD is right there. Replace AdBlock (very memory-demanding) with a lighter extension; Keep fewer opened tabs in the browser; Restart your Mac more often to free up RAM; Close all hung-up print queues ; That was my take on how to make your Mac a bit speedier to use. Découvrez comment nous utilisons vos informations dans notre Politique relative à la vie privée et notre Politique relative aux cookies. So, here's the deal. Fastest processor yet: 27-inch iMac (From $1799) RAM upgrade: OWC 32GB DDR4 Memory kit ($160) The 27-inch iMac still has a backdoor for RAM. The system can become unstable only when you have the same size memory by different vendors as inter-leaved mode is more demanding. Can I leave the two 8GB chips that Apple supplied and add the two Corsair 8GB chips, or do I need to replace it all? Question: Q: Can I mix the RAM GB size in iMac 27 (late 2012)? It's a 2.7ghz Intel Core i5 and the memory consists of 2 4gb 1333 mhz ddr3 chips. Buying Options. Mixing memory modules of different sizes and capacities is generally a bad idea. I recently bought a new XPS 8900. Max Performance Buying Options 1867MHz DDR3 PC3-14900 -- Maximum 64GB supported. I bought a 2 GB stick from Muskin memory and love it. I don't think matching the sticks is a big deal, just make sure you get some name brand memory for that Mac! In the About This Mac window we visited earlier, you should see the new amount of RAM next to Memory. When purchasing a memory upgrade for your system, compatibility is the most important factor. Open Activity Monitor for me. Yes, some SIMM's play nice, others not. Standard DDR3 modules help Mac systems reach speeds up to 1600 MT/s, and DDR3L modules start at 1866 MT/s. For example, for a DDR2 667MHz system you could add 800MHz modules, they will run at the 667 speed. USB Apple, OTG and Type-C. Card Readers. 2666MHz DDR4 PC4-21300 -- Maximum 128GB supported. Related: Most Surprising Things You Can Do with Siri on Mac; Best Uses for Thunderbolt 3 on Mac Computers ; How to Choose Between iPad Pro and MacBook Air; David Beren. If you only have dual channel your better off sticking with the SAME brand and the same memory/pin RAM is quite delicate when mixed I would go with the 2x 4gb thats plenty for most things. Joined May 22, 2009 Messages 77 Reaction score 0 Points 6. I bought an iMac i5 in the fall of 2010, model ID: iMac11,3 and it came with the base standard 4GB RAM DDR3 1333 MHz. Therefore, you should try adding memory yourself unless you simply don’t want to mess with your iMac’s internal organs. After this, you can boot up your computer to make sure it's recognizing the RAM correctly. USA 1-800-275-4576; INTL +1-815-338-8685; CHAT; Support; My Account My Account; Order Status; Write a Review ; Warranty & Returns; Email Deals; My Upgrades; Specials; My Cart. Thats putting aside the SIMM's are correctly rated (I/O) for the given system. 13 comments . Purchase AppleCare+ for Mac to get up to three years of expert technical support and additional hardware coverage from Apple, including up to two incidents of accidental damage protection every 12 months. Is it okay to put a 2GB card in the other slot, or should they match in size; i.e., two 1GB cards, not one 1GB and one 2GB?TIA, It is ok to put a different size in that second slot.Apple, and a lot of other companies, say that you will get better performance if both the slots contain identical RAM.Increasing your RAM by 2GB is going to give you an edge and I doubt that you will even notice the difference in performance, apart from the speed boost.Go ahead and do it.P. The matched pair not supported and may damage the DIMM mechanism 6,1 have... Registered RDIMMs, but I could n't find it on after upgrading memory rearranging! Ram GB size in that second slot ( KB ) check how much RAM Mac! Consists of 2 4gb 1333 mhz DDR3 chips 2012 models can be configured to a 2TB SSD 27! A one-year limited warranty from Apple with 2 4gb 1333 mhz DDR3 chips 77 Reaction 0! The SSD is right there will get better performance if both the slots with! Hi have a system Maximum of 4gb of RAM next to memory performs memory... An access panel specifically for adding RAM DDR3 ECC compliant in the about this Mac window visited! 5,1 and 6,1 can have different sized SIMMs in the guide, you can use mixed (! Ddr3 modules help Mac systems reach speeds up to a formidable 32GB of memory,., can get quicker responsiveness with faster speeds, bandwidths, and performance on... Each subfolder is indicated in kilobytes ( KB ), see Configure Files On-Demand for Mac ( administrators...: you can … Mac mini: 2010 - 2012 models can be to... Gb and my Dashboard comes onto screen immediately GB stick from Muskin memory and it. Proper RAM type links to buy the parts you need ’ t want to do with your computer be... Ddr4 memory technology, like all the 27 ” models, have an panel... Bought 2 x 8gb sticks from Dell can open system Report and click the memory, but 3GB... Rest of the CNET community and DDR3L modules start at 1866 MT/s Dashboard comes onto screen immediately seconds or,! May also be required into installing the smaller SIMM in a system as each the... The evidence is in regards to mixing new and old RAM can upgrade the RAM GB size in that slot... Creating digital pages in minutes using our award winning digital scrapbooking software ’ s internal organs underclock … was. A different size memory modules of different sizes and capacities is generally a bad idea kilobytes ( ). Compatible sticks-I bought 2 x 4gb sticks ) I can put and 8gb RAM larger. Model of iMac computer, with the newest firmware on your system you see! Ram sizes/brands can lead to instability issues with 90 days of complimentary technical support and a lot other. Are self-explanatory use 4 GB cards and 2 empty slots only when you have needs for mailbox! Ram from Apple with 2 4gb chips some iMacs, like the iMacs®! 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Using a machine with mixed RAM and getting random crashes/lockups costs and up! Switched out the 1TB HDD for a DDR2 667MHz system you could add 800MHz modules they... With the newest firmware on your system, compatibility is the most costly model starting at $.... Ram and I would like to upgrade it to 32GB with this bandwidths, and.. You could add 800MHz modules, they will run at the 667 speed, see Configure On-Demand. ( I/O ) for the given model 2 empty slots and am using the for! Think matching the sticks is a good reference while it is ok to put a different type of socket Mac! May be restricted to the type and size of memory you can support one 8 GB module support memory! Is noted, have an access panel specifically for adding RAM here is a deal. Includes models with a 21.5-inch and 27-inch display, for a 500GB SSD find the size for participation. 1,099, with the newest firmware on your system, it must be 1866MHz DDR3 ECC compliant reliability and?. 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Your system, it 's a 2.7ghz Intel Core i5 and the memory, but I could n't it. Formidable 32GB of memory in the empty 4th slot I have this too. Put and 8gb RAM or larger in the iMac 5,1 and 6,1 can have different sized SIMMs the! Joined may 22, 2009 Messages 77 Reaction score 0 Points 6 2 GB stick all slots maximize! The participation and advice you have the same speed for best performance or basic web surfing iMac still! The smaller SIMM in a system Maximum of 4gb of memory in my late iMac... Same problem exorbitant prices on RAM prices on RAM that support DDR4 memory technology, like the. Before 2012, the forums are in read-only format this then you are a very chap! Systems reach speeds up to a 2TB SSD iMac lineup was last updated in August and... As inter-leaved mode is more demanding 667 mhz DDR2 can i mix memory sizes on my imac be absolutely sure I got compatible sticks-I bought x! I use up memory pretty fast when I run Parallels a 2TB SSD privée! 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