Memory normally refers to RAM. Temporary, high-speed storage used to keep frequently accessed information available for use and helps keep the computer running smoothly

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2
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5answers
12k views

Can I use Kingston RAM in a MacBook Pro?

I have MacBook Pro 15-inch, early-2011. I want to upgrade my RAM from 4 GB (2+2) to 6 GB (2+4). Can I use Kingston RAM (Kingston 4GB DDR3 1333 Bus SOD)? Or is there specific RAM made for Macs?
6
votes
5answers
26k views

Will Early 2009 iMac accept faster-than-spec RAM?

I am looking to upgrade the RAM on my Early 2009 iMac from 4GB to 8GB. According to the memory specifications it accepts PC3-8500 204-pin SO-DIMMs. However, will the iMac accept faster RAM (e.g. ...
1
vote
1answer
4k views

Can I upgrade my MacBook with more than 4GB of RAM?

I have an Early 2008 13 inch MacBook updated to Lion. According to this Apple KB the max RAM I can add is 4GB. I know the OS that came with the initial computer didn't support 64 bit. So is this 4 ...
2
votes
3answers
5k views

Add more RAM to my MacBook Pro 5,3

I got my MacBook Pro on October 2009 , here are the specifications: Processor 2.66 GHz Intel Core 2 Duo Memory 4 GB 1067 Mhz DDR3 Lion 10.7.3 15-inch, Mid 2009 Model Identifier: ...
0
votes
2answers
3k views

Should I buy Ram memory DDR3 1066MHz for Mac mini (Mid 2011)?

I got a Mac mini last year and now I want to update the ram memory. I was looking for it and I just found this (spanish). The guy is selling what you see on the picture and I'm worried if I get those ...
0
votes
1answer
308 views

Reason for the need to reboot my iPad

this is my first question here so go easy on me. Truth to be told it's not really a question, more like a curiosity. I noticed that after prolonged use of my 1st generation iPad without rebooting it ...
3
votes
3answers
33k views

Maximum memory for 2011 iMac

I just bought an iMac and want to max out the memory on the machine. I have received two conflicting answers to my question so I'm bringing it to the community. Can I install 4 8GB memory chips for a ...
2
votes
3answers
2k views

How can I benchmark my new RAM?

Based on the responses to my earlier question about memory replacement, I plan to upgrade soon. That said, once I've acquired and installed said memory, what is the recommended Mac software I should ...
18
votes
7answers
23k views

Is RAM upgrade worth it if I have an SSD already?

I recently purchased a Macbook Pro. I had an SSD from my last computer which I formatted, installed into my Mac, and used as my one and only HD (I don't need that much space so I didn't opt to do the ...
4
votes
3answers
2k views

OS X Lion behaving oddly after upgrading to 16GB RAM

Just upgraded Early 2011 Macbook Pro w/ 4GB RAM to 16GB RAM. System now sometimes runs smoothly and other times pauses frequently. Terminal keeps giving me 'System is low on disk space/memory' ...
6
votes
4answers
6k views

How much RAM can I add to my macbook

I have a 2008 macbook with a 2.1 GHz Intel Core 2 Duo. I am in the process of upgrading to Lion. I currently have 2GB 667 MHz DDR2 SDRAM What's the maximum amount of RAM I can put in and it have an ...
1
vote
2answers
315 views

I'd like to upgrade my MacBook Pro's RAM and hard drive. What brands are reliable?

I do heavy web development/web design and run my software on a MacBook Pro (Mid 2009) 2.8ghz model. I use Adobe products, run virtual machines in Parallels, have multiple browsers open, text editors ...
0
votes
3answers
225 views

What do I need to look for when selecting new RAM for my MacbookPro8,1?

I'm looking at buying some extra RAM for my mid-2011 (?) MBP. OWC says that I can handle up to 16GB (2x8), though I might elect to go with "only" 8GB. I haven't bought computer components in a ...
1
vote
3answers
4k views

Can I put this RAM into my iMac 27" mid 2010? (Corsair CMSO8GX3M2A1333C9)

I have an aluminium iMac (from mid/late 2010 I believe). I want to upgrade the memory from 4gb to 8 or 16. I'm no hardware guy, but from the info I read it would appear I can upgrade to any SO-DIMM ...
6
votes
2answers
5k views

Way to limit how much RAM an arbitrary process can take up?

Lets say we have a OS X machine running with 4 GB of RAM. Is it possible to set it up so no single process can take up more than say, 3 GB, so no matter how memory hogging a process is, there's always ...
5
votes
1answer
2k views

Mixing memory sizes

I'm looking at upgrading the memory in my mid-2011 iMac. Is there any problem with sticking in 2 4GB modules alongside the existing 2GB modules?
24
votes
6answers
119k views

Can I upgrade my MacBook mid 2010 to 16GB of RAM? (2x8G)

I bought a MacBook mid 2010 which I have upgraded to 8GB of RAM. But now, 8GB is not enough for me. I need more RAM for my work. Can I upgrade my MacBook's RAM to 16GB? I know the new Macbook Pros ...
0
votes
1answer
86 views

Does the Mac Pro 2008 display memory speeds accurately in System Information?

Can anyone confirm that when a Mac Pro 2008 has 800MHz FB-DIMMs installed it displays the Ram speed as 800Mhz in the System Information and not 667MHZ. I am running OS X Lion.
8
votes
10answers
38k views

Can I use 16GB DDR3-1600MHz RAM in an early Macbook Pro 8.2?

I found Macs which had: 16GB RAM installed 8GB RAM installed, but running on 1600MHz instead of 1333MHz (link in dutch) Question Is it possible to put 16GB running at 1600MHz in my Mac? If ...
0
votes
2answers
1k views

Will this brand of third-party RAM work in my Mid 2010 iMac?

I am looking to update my iMac's Mid 2010 RAM from 4GB to 12GB and wondering if this RAM is alright to use and what is the difference between the two sets of RAM because they are the same price, both ...
4
votes
2answers
185 views

Is there a way to receive a warning if memory is running low?

Sometimes I get tab happy with Google Chrome which chews up a lot of memory and slows down the system. Is there a way to get a warning when free memory falls below a certain threshold? That way I can ...
0
votes
1answer
97 views

Are the per process memory and other statistics defined the same as the system wide stats?

There's been a lot of posts about memory in OSX. None have really documented what the screen below speaks to. Especially the difference between private memory, and virtual private memory. Also does ...
2
votes
1answer
315 views

Any way to know what causes allocation of wired memory?

Activity Monitor lets me see how much memory is allocated as "wired", but I can't find a way to break the allocation down by applications or other memory consumers. Is there a tool out there that ...
2
votes
2answers
569 views

'09 mac mini hardware upgrade advice

Hello all I have an early '09 Mac mini 3,1 (Intel Core 2 duo 2GHz, 1GB RAM, 120GB HDD) which I need to upgrade soon as it is slowly dying (i.e., runnning an IDE like netbeans while having chrome open ...
3
votes
5answers
12k views

Can I use a PC3-10600 memory on a MacBook with PC3-8500 slots?

I have a MacBook (13-inch, Late 2009) with the default 2GB of RAM, I want to update it to 8GBs, but I only found this model of memory to buy. The question is since the memory is more "powerful" than ...
1
vote
1answer
80 views

OSX memory inconsistency (shared + private)

In the picture below the shouldn't the (shared memory + private memory) equal the real memory? Am I reading this wrong? What else constitutes the real memory size? I assumed that shared memory was ...
0
votes
1answer
630 views

Best 3rd party RAM for MacBook Pros? [closed]

I recently bought a 15" MacBook Pro (Late 2011) with 4GB of RAM. I want to upgrade to 8GB, but I've read that MacBooks can be kind of picky when it comes to RAM and will not operate right if it is ...
3
votes
5answers
8k views

Why would 2 sticks of 2GB RAM not work together, but work individually in my Macbook?

I have an older Macbook, specifically this model, and when I am upgrading the standard 1GB that it came with. I bought DDR2 667 PNY Memory - 2 X 2GB. According to those specs, my unit can manage 4GB. ...
2
votes
1answer
868 views

Silencing the Memory slot utility

I recently upgraded my Mac Pro with 24Gb of ram, quite the nice feeling. When I booted up the system again, I got this message : Quite nice I thought, seems the memory is working as it should. And ...
16
votes
3answers
37k views

What exactly does kernel_task do?

I'd just like to know what it is that kernel_task is responsible for. Also, what's an acceptable maximum RAM and CPU use for it?
3
votes
2answers
880 views

Do Mac Pros use NUMA?

Does Mac OS X make use of NUMA on Mac Pros with two (or more) CPUs?
28
votes
2answers
13k views

kernel_task using *way* too much memory

I have a 2008 Mac Mini with 4 GB of RAM. Recently (post installation of Lion), it started to behave extremely sluggishly, so I used Activity Monitor to see what was using up the system resources. ...
4
votes
3answers
23k views

How should different sized RAM be added to iMac?

I have a mid-2011 iMac which came with 4GB RAM (2x2GB). I just bought 8 GB (2x4GB) and added it to get a total of 12GB. The current configuration is as follows: Given that the RAM is a different ...
3
votes
2answers
1k views

Which memory upgrade gives a faster Mac Mini?

A friend is upgrading a 2007 Mac Mini with 1GB of RAM. This model can support up to 4GB or RAM installed, but will only use a maximum of 3GB. So, his options are to install 2 x 1GB, 2 x 2GB, or 1 x ...
2
votes
2answers
140 views

How to decide on a new Hard drive for macbook pro [closed]

I have been using my Macbook Pro for about 5 years, it was the first model with the Intel chip. The 100GB hard drive is starting to go and I'm ready to replace it. I went over to Cnet to see what ...
1
vote
1answer
439 views

Mac mini 2011 memory

I have a Mac mini Mid 2011 2.3 GHz Intel Core i5. I received as a gift an 8GB memory kit. The memory spec for my Mac says it needs PC3-10600 DDR3. The kit I have is PC3-8500 DDR3. In particular, the ...
6
votes
6answers
10k views

Macbook Pro Upgrade - 16GB RAM or 128GB SSD

I am asking myself which constellation is better: should I stock up my RAM up to 16GB (from 8GB), or should I buy a SSD with 128GB?? I really dont know :/ Cheers! BTW: My macbook supports 16GB ...
7
votes
1answer
4k views

Can I put more than 8GB of Ram in a MacBook Pro 5.1

I have a 5.1 MacBook Pro (5.1 Model Late 2008) with 4GB of Ram. All the apple documentation I can find that the maximum supported for this model is 8GB of RAM (2 x 4GB). Has anyone tried to put bigger ...
2
votes
2answers
220 views

What do these different terms for system memory in OS X mean? [duplicate]

Possible Duplicate: What does it mean if I have lots of “Inactive” memory at the end of a work day? I just bought a MacBook Pro (I've been a Windows user before this), and I ...
2
votes
2answers
912 views

OS X Lion: 8GB of RAM, 20MB free

I have a Macbook Pro (early 2011) running OS X Lion and while running a few apps that only take up, say, 200 MBs of space each (Xcode, Spotify, and Photoshop), my wired memory shoots up to 1.4GB, my ...
31
votes
4answers
2k views

Is there a real benefit to removing applications from the iOS multitasking bar?

Sometimes, if my iOS device (ipad or ipod touch) is acting sketchy or slow, I will bring up the multitasking bar (double-press the home button) and then remove items from that multitasking bar (do a ...
1
vote
2answers
475 views

Trouble with Memtest86 4.0a on 15" MacBook Pro

I have a 15" MacBook Pro late 2011 (MacBookPro8,2) It has a 2.4Ghz Core i7 CPU and 4GB of stock RAM. I'm trying to run Memtest86 4.0a from boot (Memtest86+ does not work.) After about 5 seconds into ...
3
votes
2answers
815 views

Why is my memory still inactive after purging?

I'm trying to understand how memory is allocated on my machine. I have read, and believe I understand, these posts and associated links: Trouble Understanding Inactive Memory in MacOSX, Inactive ...
0
votes
1answer
410 views

Upgrade a MBP(8,1) dual i7 to 16GB RAM from 4GB or to a SSD?

I currently find my new computer a bit slow when it comes to my number crunching requirements. Also, I find my computer painfully slow when it's running VirtualBox. My budget is around $500. Newegg ...
1
vote
1answer
522 views

RAM intermittently not recognized

My MBP will sometimes drop 4 of the 8G of RAM I have after recovering from sleep or a reboot. One (or more) restarts later I'll have all 8G again. Is this a memory stick going bad? Could it be ...
0
votes
1answer
379 views

How can I retrieve files cached in the RAM?

there are some applications that don't write cache files on the disk, instead they write into the RAM directly and thus you can't back it up, analyse it or do anything with it. How can I retrieve ...
1
vote
1answer
13k views

Why is the memory usage on my iPhone being reported incorrectly by iTunes?

I'm puzzled by what iTunes is reporting about my iPhone's memory usage: Clearly this doesn't quite add up, and it's hard to manage my memory use without having an accurate summary of what's really ...
7
votes
6answers
19k views

How can I increase command line memory_limit for PHP with MAMP PRO?

I've edited every single php.ini on my Mac (at least all the ones found by "locate") and still can't seem to increase the memory_limit directive for PHP. I'm using MAMP PRO and running PHP scripts in ...
36
votes
7answers
30k views

What is wired memory?

I'm trying to figure out what is using all of the memory in my Macbook Pro running OS X Lion. I have 8 GB of memory total. When I quit all active programs except Finder and Activity Monitor, then run ...
2
votes
1answer
2k views

Why is my inactive memory not getting free? [duplicate]

When my MacBook Pro (13" 2010, Intel C2D 2.4 GHz, 4GB RAM 1067 MHz DDR3, running Snow Leopard) runs out of free memory, instead of releasing inactive memory (which is mostly about 500 - 1000 MB), it ...