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

learn more… | top users | synonyms (1)

66
votes
7answers
40k views

Isn't Inactive memory a waste of resources?

I'm looking for explanation of memory usage on my machine especially in light of the example in this screenshot below: I understand what is Free and Active means But what are the meanings of Wired ...
2
votes
1answer
1k views

How to find out which process eats up memory?

My MacBook Pro has 8G RAM. Recently memory leak offen happened. Page outs and swap used kept increasing. The last time it used ~8G swap space. But in Activity Monitor, I can't find any process has a ...
0
votes
1answer
13 views

“Helper” processes using up insane RAM amounts

I have observed many apps that show HTML such as Chrome and Steam have these 'helper' processes. These processes have been taking up insane amounts of RAM on my Mac. Applications such as Steam and ...
0
votes
0answers
11 views

Why is so much RAM on my system being used? (with screenshot of Activity Monitor) [duplicate]

As shown in this Activity Monitor screen-cap 3.25 GB of my 4 GB RAM is being used currently on the system, while the only open applications are Activity Monitor, Preview (with a pdf open), Terminal ...
2
votes
4answers
11k views

“Your system has run out of application memory.” How is that possible?

(Translation it->en: Your system has run out of application memory. To avoid problems with your computer, quit any applications you are not using.) How is that possible if there are only few open ...
4
votes
2answers
397 views

17" mid-2009 MBP, 3.06 GHz Intel Core 2 Duo: can it take 16GB RAM?

Does anyone have this unibody from mid-2009? Has anyone upgraded it to 16GB RAM? If so, is it good news? Thanks!
8
votes
7answers
49k views

How to diagnose repeated OS X hang / spinning beach ball of death?

Here are my stats and brief summary of the problem: macbook pro; mid 2009; 13 inch; 2.26 GHz; 4GB RAM (currently, will elaborate); 10.7.5 The issue I'm having is that the computer constantly gets ...
0
votes
1answer
21 views

Can I mix Apple stock RAM with OWC RAM?

I have an iMac that shipped with 16GB RAM (using 2 out of 4 slots). I ordered two 16GB RAM modules from OWC. Instead of just replacing the RAM, can I actually add the OWC RAM to what's already in ...
0
votes
0answers
10 views

My IPhone 6 deleted all my photos , after he shown me full memory

Please help me get back my photos. I had 3 months full memory , sometimes i deleted a few pictures only. Yesterday i took oné photo, than the iPhone was frozen; after that i went to photo library, and ...
0
votes
1answer
30 views

MacBook Pro Retina 2013 memory frequency limit [duplicate]

I would like to replace the 2x8 GB 1600 MHz DDR3 of soldered memory in my 15" 2013 MacBook Pro with some faster RAM. Is this MacBook Pro compatible? This is not a duplicate question (Allan, patrix ...
1
vote
2answers
28 views

iMac 27" Late 2015 - what ram to buy?

I'm waiting for my iMac 27" late 2015 4.0ghz i7 to arrive and I'm looking to buy a 32gb kit to upgrade. I've been browsing for an hour and I can't find any specific buyer guides or websites that sell ...
6
votes
1answer
141 views

Mail memory usage?

I'm seeing massive RAM usage from Mail I removed all mail accounts as I assumed it was something in an inbox taking up space, but even then, with no accounts other than iCloud (which contains zero ...
0
votes
0answers
37 views

Poor performance on high-end iMac 5K Retina (October 2015 model)

I've got an iMac that is performing quite poorly. The specs: OS X El Capitan 4.0 GHz quad-core (i7) 16 GB RAM I've tried everything possible to figure out what's going on, to no avail. Typically ...
3
votes
4answers
25k views

Can a 2009 MacBook Pro use more memory than Apple's 'maximum RAM' figure of 8 GB?

I have a 2009 MBP with 8GB of RAM. I run Windows under Parallels pretty much all the time (I use Visual Studio for work). I recently installed an SSD to speed it up a bit and its running beautifully. ...
2
votes
2answers
157 views

Mac Freeze and Screen Goes Weird After RAM Upgrade

I've a MacBook Pro. I upgraded it's RAMs to 16 GB of 1600MHz(two 8 GB modules). Even though Apple suggests a maximum of 8GB, everymac.com's tests yield that it supports 16GB. And it did. After the ...
28
votes
2answers
28k views

How to investigate high kernel task memory usage?

I was using my MBP (with 16GB of RAM) as usual and out of blue I've this popup that: Your system has run out of application memory. To avoid problems with your computer, quit any applications ...
0
votes
0answers
13 views

Mac Pro acts as if no memory installed when upgraded (but only when new & old combined)

I bought a memory upgrade for the mac pro from crucial, http://uk.crucial.com/gbr/en/mac-pro-%28late-2013%29/CT5019227 I installed it, by itself, it works fine, system boots and everything is perfect....
10
votes
2answers
4k views

Tool for determining performance bottleneck

I am using my early 2011 MacBook Pro for iOS development, Photoshop work, and the like, and it is at times quite sluggish. Is there a tool that I can just run for a day, and then look at the ...
0
votes
2answers
35 views

My Mac has weird lines when booting

MacBook Pro, Late 2011 2.5Ghz. The Mac works perfectly fine, however, every so often, the Mac simply freezes and doesn't respond. Therefore I turn it off, and when turning it back on weird lines ...
0
votes
4answers
87 views

Macbook Pro Mid2012 Lags

I have a macbook pro mid 2012 and recently I upgraded it by changing the RAM to 16GB and HDD to 500GB SSD. It was fine for a while but now it lags a lot whenever I play any games or even when I am ...
0
votes
0answers
70 views

Kernel Task is taking up 1.12 GB in activity monitor

I have an issue where my kernel task is taking over a GB of memory on my activity monitor. My fan seems to be going pretty crazy and is loud. Any ideas?
1
vote
2answers
2k views

MacBookPro crashed with pixel disturbed screen and 3beeps

I have MacBook Pro 15-inch, Early 2011 Processor 2 GHz Intel Core i7 Memory 8 GB 1333 MHz DDR3 Once a week it crashed with beep sound ( 3 times ) beep - beep - beep Then pixel in the display ...
0
votes
1answer
27 views

Exception in thread “main” java.lang.UnsupportedClassVersionError (Trying run Alda on OS X)

I've hit a wall with trying to get Alda to run on OS X. It's an executable I downloaded from here; then, as per the installation guide on GitHub, I ran chmod +x alda on it, and then moved it to my /...
10
votes
3answers
3k views

Solder new RAM in a 2015 Retina MacBook Pro [duplicate]

I know that the new rMBPs have no "user-serviceable" RAM. But is it possible to solder a new RAM chip onto a 2015 rMBP? Given that the technician doing this is able to install the new chip without ...
0
votes
3answers
54 views

I have several memory questions regarding OS X 10.9.5

I have just purchased CS3 and it has been legally transferred to me. Do I have enough memory to handle it? In addition I want to upgrade to Yosemite or El Capitan. Do I have enough memory to do that ...
0
votes
1answer
37 views

Processor or RAM? [closed]

I want to buy a macbook pro in the near future, but choosing the configuration has been a headache for me so far. My options are : Macbook Pro 13" Retina 2.9GHz Dual-core Intel Core i5, Turbo Boost ...
0
votes
0answers
53 views

MacBook keeps Panic (RAM problem?)

I’m having a major problem with my MacBook Pro 15" (Mid 2012 - non-retina) In 2012 I bought my MacBook in connection with my education. About 6 month after I've bought it, I got my first Kernel Panic ...
0
votes
2answers
62 views

what do App Memory, Wired Memory, and Compressed mean?

In Activity monitor, what do App Memory, Wired Memory, and Compressed mean? For example, I am used to the columns in the output of free from procps-ng under Linux. By the way, how can I install ...
0
votes
1answer
158 views

iTunes audio cuts out at random times when listening to music

This has been an ongoing problem for over a year now. When listening to music in iTunes, something is causing the audio to cut out for a second or two at seemingly random moments. I never stream music....
1
vote
1answer
59 views

How much RAM is recommended to be assigned to a virtual machine in VirtualBox?

I have installed Ubuntu in VirtualBox under OS X on a MacBook Pro. The laptop has 16 GB RAM, and I assigned about 11 GB to Ubuntu, because I thought that most work would be done in Ubuntu anyway. ...
2
votes
1answer
88 views

2010 Macbook Pro suddenly crashing

So for the past few months my computer has been crashing randomly. Recently it's been more frequent, so I thought it's time to get a real fix. My computer never crashed before I got an external ...
9
votes
2answers
1k views

vm_compressor=VM_PAGER_DEFAULT in Yosemite caused freeze when physical memory was full

The memory compression caused frequently lag so I tried turning it off by using the command sudo nvram boot-args="vm_compressor=1" The lag was gone but I got crashing freeze when I opened some ...
0
votes
1answer
71 views

16GB 1600mhz vs 16GB 1866mhz RAM for Macbook Pro 13" mid 2012 [closed]

Want To Ask i did geekbench test on 2 types of RAMs on my  MBP 13" 2.9ghz i7 mid 2012. 1-Crucial 16GB Kit (8GBx2) DDR3L-1600 SODIMM  32bit test 2913 Single-Core Score 6105 Multi-Core Score 64 bit ...
0
votes
2answers
32 views

Mix two different types of 2 GB RAM in iMac

Can I mix the two 2 GB RAM chips in my iMac 21.5″ (late 2009) with two other type of 2 GB RAM chips? I have not opened my RAM slots yet but Apple says I have two 2 GB DDR3 chips. I want to add two PC3 ...
0
votes
1answer
285 views

How to stop kernel_task from constantly using over 400% CPU?

Configuration: Model Name: Mac mini (Late 2012) Model Identifier: Macmini6,2 System Version: OS X v10.11.3 (El Capitan) For the past few weeks, kernel_task has been using over 400% CPU and its ...
1
vote
3answers
4k views

Mac Mini (Late 2009) - Recommended OSX Version for it?

I have a Mac mini (Late 2009) (hw.model: Macmini3,1, 2 GB RAM) that I've got hooked on my TV primary as a "media consumption" device... but a while ago I updated it to: Mac-mini:~ javier$ sw_vers ...
0
votes
2answers
8k views

Compatible RAM and SSD drive for macbook pro 2012 MD101

I want to help a friend upgrading her macbook pro macbook 2012 MD101 from 4GB RAM and HDD to 8GB RAM and SSD. Since I am not a mac guy myself, I need to ask you guys what is the compatible RAM ...
105
votes
18answers
116k views

Is there a Mac OS X Terminal version of the “free” command in Linux systems?

On Linux, I often use the free command to see the current amount of free and used memory in the system. For example: $ free total used free shared buffers cached ...
0
votes
0answers
22 views

IPad memory of ICloud

Often, I see Your iCloud memory is full. However, when I go to iCloud memory in Settings, I find that about 50% of storage is empty or available. How can I remove this message?
1
vote
3answers
2k views

Macbook pro doesn't want to start, “no RAM installed” beeps (1 every 5 seconds)

I have a problem with my Macbook Pro. Everything was working fine up until yesterday; I can't start it anymore and it "beeps" once every 5 seconds. According to the support, this indicates that "no ...
1
vote
1answer
90 views

Optimise use of hardware under Mac + Windows in virtual machine

I use a macbook pro with OS X El Capitan 10.11.4, 2,5 GHz Intel Core i7 and 8 GB 1333 MHz DDR3. I need to code in Visual Studio and use Microsoft Excel for Windows, thus I installed Parallels ...
1
vote
1answer
25 views

How can I back-up my OS X instance and Restore from mounted drive?

Synopsis I have been having trouble With my MacBook Pro (Mid '12, 15") I deployed tonnes of work Sunday evening/early hours Monday morning before I went to bed, leaving my MacBook running but ...
0
votes
1answer
35 views

iMac (mid 2010, 27") minimum ram slots required to fill

Can I use only two 8 GB RAM modules with my mid 2010 27" iMac (2.8 GHz Core I5)? In other words, do you have to fill all 4 memory slots or are 2 filled slots sufficient?
1
vote
2answers
49 views

iMac (Late 2015) using swap when there's still plenty of RAM left

My wife's new iMac is behaving rather oddly. Despite being a pretty powerful machine, it's rather slow and laggy. I looked into it, and it seems her swap memory is maxing out, even though there's ...
3
votes
4answers
9k views

My iPad camera roll says it is using 7.5 gb after all pics have been deleted for weeks

Please help me. I have deleted apps and photos to get memory on my iPad, and it still says I have 0gb left. It has been a couple of weeks. All photos have been deleted from the 'recently deleted' ...
4
votes
2answers
5k views

Is there a firmware upgrade for the Macbook6,1 from MB61.00C8.B00 to B02?

This question is directly relevant to my failing attempts to upgrade the RAM in a Late 2009 White Unibody MacBook (MacBook6,1) to 8GB, and the question may be better asked in that context. It is ...
0
votes
1answer
208 views

macbook air mid 13 overheating

My set up is macbook air mid 13 with i7 processor and 8GB of ram running OS X Yosemite. Which is plenty for my use, at least it has been. I usually have no more than 3 apps running as notes, reminders ...
0
votes
1answer
82 views

memtest86(+) not working on MacBook Pro 8,3 17" 2011?

When i run memtest86 or memtest86+ on my MacBook Pro 8,3 2011 17" 2,5GHz the machine reboots after a few seconds. I tried 3 different pairs of ram modules. problem persists. I never had any issues ...
0
votes
0answers
31 views

Is it feasible to mix different brands of RAM?

Based on my online research, I believe it is safe to assume that one can use two sticks of RAM that have different RAM sizes (2 gigabytes, 4 gigabytes, etc.). However, my Macbook Pro has been ...
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 ...