The RAM you have listed are PC generic, if you want to be assured of compatibility, Corsair and Crucial have Mac specific model numbers; For Corsair CMSAxxxxxxxxx For Crucial CTxxxxxxxxxM You want to purchase memory with a lifetime manufacturer's warranty, from a seller who guarantees compatibility, and who offers a no cost (no restock, no shipping cost) return or replacement if it does not work. You say you want to add a 4 GB to the 4 you already have. Have you checked for certain whether you have a sigle 4 GB module, or two 2 GB modules presently? Click to expand.- Provided the installed 4 GB are the original modules, you can't do that, since both slots will be occupied.
However, all the Internet is bloated about 4K support with different answers about 4K support on MBPs. Some say it's not possible, some say only at 30 or 24Hz, some say with multistream etc. What can I exactly get with late 2011 MacBook Pro (Mavericks 10.9.4) in terms of 4K? Please, is it worth upgrading the memory of my 4 years old MacBook Pro Early 2011 13-inch (Intel i7 2.7GHz, 4GB, Intel HD 3000 Graphics.
![Upgrade Mac Book Pro Late 2011 For 4k Video Upgrade Mac Book Pro Late 2011 For 4k Video](/uploads/1/2/5/4/125431687/359102355.png)
Look in the memory section of 'About This Mac'. All the modules you linked to are (probably) compatible. I say probably, because the information is quite sparse. It's worth making sure they're compatible with 1.5V, which isn't stated for all of them.
The Crucial is the best option, since it's 1600MHz. Your computer will support up to 16GB 1600MHz RAM, and to upgrade you'll have to remove at least one of the installed modules.
I use 16GB Corsair Vengeance 1600MHz in my 2011 machine. Provided the installed 4 GB are the original modules, you can't do that, since both slots will be occupied. Look in the memory section of 'About This Mac'.
All the modules you linked to are (probably) compatible. I say probably, because the information is quite sparse. It's worth making sure they're compatible with 1.5V, which isn't stated for all of them. The Crucial is the best option, since it's 1600MHz. Your computer will support up to 16GB 1600MHz RAM, and to upgrade you'll have to remove at least one of the installed modules. I use 16GB Corsair Vengeance 1600MHz in my 2011 machine.
If they're more expensive, that's a waste of money. RAM is RAM and as long as you buy RAM with the right specs, you're fine. In addition, different Macs have different requirements and capabilities, so a generic 'mac compatible' label says nearly nothing, and it certainly doesn't ensure you're getting the best or fastest RAM you can. The RAM you have listed are PC generic, if you want to be assured of compatibility, Corsair and Crucial have Mac specific model numbers; For Corsair CMSAxxxxxxxxx For Crucial CTxxxxxxxxxM You want to purchase memory with a lifetime manufacturer's warranty, from a seller who guarantees compatibility, and who offers a no cost (no restock, no shipping cost) return or replacement if it does not work. You say you want to add a 4 GB to the 4 you already have. Have you checked for certain whether you have a sigle 4 GB module, or two 2 GB modules presently? Click to expand.OK, whatever works for you.
You make the assumption that ALL of the specs are published (they aren't), and that you know which ones are relevant (Hint: DDR3-1333 SODIMM is not all there is to it). And you assume that the SPD values have been correctly written to the module by the manufacturer. Get back to me after you install some generic high density Single-Rank modules in your 2009 Mac even though they are the 'correct specs'. There's a reason why Kingston, for example, has dropped support for thousands of individual models of PCs and Macs; they have switched manufacturing across the board to a single rank module build with lower chip counts and higher density chips. These work on most modern machines but fail miserably on many machines, particularly from 2008 - 2011. Click to expand.Getting the correct speed and voltage for the machine is important, of course there is no one single 'Mac compatible' module for all models of Mac. Also, the Corsair CMSA Mac RAM is no different in price from the CMSO Corsair ValueRAM (on Amazon.ca Canada at least, individual sellers in different countries may vary) So the linked generic RAM may work fine.
My point was that SOME generic RAM is unworkable even if the basic spec looks right, and given that there is little or no price delta between the 'Value' and the Mac version of a given brand, if you want the assurance of compatibility, you should know that the companies have Mac part numbers. You make the assumption that ALL of the specs are published (they aren't), and that you know which ones are relevant (Hint: DDR3-1333 SODIMM is not all there is to it). And you assume that the SPD values have been correctly written to the module by the manufacturer. Get back to me after you install some generic high density Single-Rank modules in your 2009 Mac even though they are the 'correct specs'. There's a reason why Kingston, for example, has dropped support for thousands of individual models of PCs and Macs; they have switched manufacturing across the board to a single rank module build with lower chip counts and higher density chips. These work on most modern machines but fail miserably on many machines, particularly from 2008 - 2011. Click to expand.I've seen boxes of Kingston RAM with a Made For Mac sticker, in a brick and mortar store, right next to the regular stuff.
If you looked at the package and read the SKU on both, they were 100% identical. Same goes for all the printed writing on the chips. The only difference was the sticker. Price difference? About $10 per stick. That's an expensive sticker. One has to remember a Mac is a regular, run-of-the-mill, Intel-based PC, in a pretty case, that runs OS X.
So long as the RAM stick is compatible with whatever the mainboard can handle, it'll work. End of story. If the RAM will not work in a Mac, is it also unlikely to work in a PC of the same vintage with a similar mainboard.
Again, there is no such thing as Mac RAM ever since the switch to intel. Click to expand.Correct although it is a self referential statement: 'Any RAM that is compatible will be compatible'. We have never debated that you need compatible RAM. The debate is how do YOU tell if it is compatible with the mainboard? You are saying that any 'PC' or 'generic' RAM with the DDR3-1066 spec (for example) will work in any Mac that takes DDR3-1066.
And I am saying (with 20+ years experience in the Mac RAM business), you are wrong. There is much more at play than 'DDR3-1066 SODIMM'. Click to expand.You make an absolute statement that is absolutely untrue The chip density, SPD programming and the Row and column organization of the cells are major factors in Mac compatibility. PC machines are by and large much more lenient in accepting RAM. In the case linked, the poster actually bought Mushkin RAM sold for Mac. (Unfortunately they didn't know that there are different Mushkin modules for different Macs of the same speed, and that the first modules they got, like the majority of PC RAM, were high density 8-chip modules that failed miserably in their particular model Mac) and they went through three sets of RAM before they hit on some modules with the correct density, 16 chips and SPD programming.
Nearly changed everything, this is the ultimate Macbook Pro upgrade! Check out my in-depth motherboard upgrade tutorial Changes: 1. Corsair SSD 120GB 2. Faspeed SSD 500GB 3.
Wireless card BCM94331PCIEBT4CAX 4. MD101 Mid 2012 Motherboard 5. MBP Mid 2012 heatpipe 5. 16GB (2x8) 1866MHz DDR3 RAM With this changes comes: 1. Way faster overall performance 2. Better graphics (from total crap to okay) 3.
Official Airdrop and Handoff support 4. Better multitasking (you should upgrade to just 8GB, I put 16GB just for fun actually, didn't see much difference in real usage) 5.
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