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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10
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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
22 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
1answer
9 views

macbook pro retina AMD M370x vs Nvidia 750M(Gaming Performance) [on hold]

I have macbook pro retina 15-inch(2.5 GHz) Mid 2014 laptop. I have noticed that newer macbook pro has AMD M370x 2GB Ram. Both these cards have similar ram. I saw some benchmarks, how come AMD M370x is ...
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
15 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
19 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
52 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
29 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
38 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
51 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
90 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
45 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
76 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
50 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
27 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
182 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
3k 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 ...
104
votes
18answers
113k 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
81 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
24 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
31 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
43 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
8k 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
205 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
77 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
28 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 ...
1
vote
1answer
4k views

Macbook Pro (5.1 Model Late 2008) 16GB RAM upgrade

Can I add 16GB of RAM in my MacBook Pro (5.1 model, late 2008) running at 1333 DIMMs?
0
votes
0answers
13 views

Why could MBP be making slow churn after RAM update?

I recently upgraded my MBP Early 2011, 2.7 GHz Intel Core i7, RAM from 4GB to 8GB. I'm running Yosemite, so I figured this was a good decision. I've noticed that my MBP now is louder than it used to ...
2
votes
1answer
33 views

OS X displays weird pattern randomly freezes and shuts off

I recently upgraded an early 2011 MacBook Pro, installed 2 new Kingston SSDs and two new 4 GB RAM sticks (unsure of brand, and I think what may be causing the issues, but wanted to get a second ...
0
votes
0answers
68 views

Beachball of death, login screen and kernel_task issues

I have an issue with a 2 week old MBP 13 (early 2015). Here is 3 things I'm worrying about: Beachball of death. It is appeared 2 or 3 times (once when Chrome and Atom were open and once after 10 ...
0
votes
0answers
205 views

How to disable Swapfile in OS X El Capitan

I've tried these commands in OS X El Capitan, but it doesn't work: $ sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.dynamic_pager.plist $ sudo rm /private/var/vm/swapfile* $ ...
17
votes
7answers
16k views

MacOSX cpu/mem monitor in system tray (menu bar)

I would like to monitor CPU and memore usage in realtime with charts on a Mac OS X system tray (menu bar). Is there a utility that provides such functionality?
23
votes
1answer
25k 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 ...
4
votes
0answers
3k views

iOS 8: Prevent Safari Mobile from reloading tabs by default

When switching between tabs in Safari Mobile -- Even within a few seconds -- Safari will automatically reload the tab. This will happen more frequently between sessions: Switching between Safari ...
0
votes
1answer
28 views

How to automat the selection of usb disk based on size

I am trying to automate a process where teachers delete content on memory sticks with different name then put the right content back (same each time) and rename the memory stick to UDISK. I want to ...
3
votes
3answers
6k views

Will upgrading to 4GB RAM on a white MacBook work?

I've seen discussions about upgrading memory but it was only for the MacBook Pro. I have a white 13" MacBook with 2GB memory, I'm considering about upgrading the memory to 4GB. Is it possible to ...
13
votes
0answers
621 views

How is the Y value for the Memory Pressure graph in Activity Monitor calculated?

How is vm.memory_pressure's value bounded / calculated on OS X 10.10.2 - Yosemite? I've researched several answers to this question and am trying a few things on the command line to get exact values ...
0
votes
1answer
47 views

Upgrading Ram on macbook pro mid 2010

Hello, I would like to upgrade my macbook pro mid 2010's ram so it could run faster. I'm going to be a student next year so i'd like to lower the costs as much as I can. what would be the maximum ram ...
0
votes
0answers
18 views

Which is better: 8GB or 8GB + 2GB RAM (Macbook7.1 mid-2010) Pros and cons?

So I have two sticks of RAM memory, PC3-8500, 1066MHz: 8GB and a 2GB stick. Is it better to have both of them inside or maybe I should put out the 2GB one in case it will slow things down? I ask this ...
8
votes
10answers
39k 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
123 views

Can I upgrade RAM to 16GB on MacBook Pro 17" i7 2.66 GHz?

When I checked it on System, it says 8 GB RAM. But I wonder, if I put 16 GB of RAM in the two slots of my MacBook (2 8GB sticks) will it work?
1
vote
2answers
270 views