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
4
votes
2answers
743 views
Lots of inactive memory after watching HD/DVD movies
I'm the owner of mid 2010 iMac (core i7) with 16GB memory installed.Normally, Mac OS X (SL and Lion) never uses swap (that is page ins/outs = 0), there are always 3-8GB of free memory. But after ...
0
votes
2answers
238 views
Is it possible to reduce memory usage by iTunes 11 on Mac?
I have iTunes 11.0.1 running on Mac OS 10.8.2 with quite a large music library, some podcasts and my iPhone connected. According to Activity Monitor, the iTunes process is taking 1.6 GB real memory, ...
39
votes
12answers
24k 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
...
2
votes
2answers
33 views
MBP w/ OS X 10.8.3 Performing Quite Slowly Lately
My MBP (2.66 GHz i7, 4GB RAM, 500GB HDD) is about two or so years old. It's been running like a champ for most of its life. However, within the past few months, I've noticed a considerable degradation ...
0
votes
2answers
21 views
Can my iBook use any PC2700 DDR-SDRAM RAM?
My iBook currently has a stick of 256MB DDR PC2700 RAM installed.
I want to bump this up to a gigabyte (because programs these days take a lot of RAM to link). I was wondering if an iBook G4 can use ...
0
votes
1answer
73 views
5Gb of RAM being used with NO software running?
My computer (brand new) was using 12 Gb of RAM so after I was done exporting my video I force-quit everything and 8 minutes later it's still using 5Gb or RAM, is this normal?! It seems like so much!
...
2
votes
2answers
92 views
Why my RAM runs at 800 MHz in 4 slots of my mac pro instead of 1066?
I've got a Mac Pro 4,1.
I had two KVR1066D3Q8R7S/8G planks in it and it ran on 1066 Mhz.
Now I've bought two planks of KVR1066D3Q8R7S/8GI (the same with "I" at the end - stands for intel ...
23
votes
2answers
5k views
Does the new Macbook Pro with Retina display have user-upgradeable RAM?
I'm interested in purchasing the new MacBook Pro with Retina display, but it's not clear from the tech specs page whether the RAM is user-upgradeable or not.
Do I need to take into account future RAM ...
0
votes
4answers
803 views
I run out of RAM on a 8GB MacBook Pro 15"
I'm a designer using Snow Leopard on a MacBook Pro 15" (i7) with 8GB Ram, 500GB (180GB free) (2010 model).
I usually use Chrome (4/5 tabs), Firefox (1/2 tabs), Skype, VM Ware Fusion (with Win XP, ...
0
votes
0answers
72 views
Mac Mini has slowed to an unbearable crawl!
I've read a lot of other questions about speed, but my question does not seem to be answered anywhere. My Mac Mini is running so slow that I cannot see what I am typing. It takes up to 15 seconds to ...
0
votes
2answers
311 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 ...
4
votes
6answers
4k 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 ...
3
votes
2answers
500 views
Why might more memory be wired in safe mode than in normal mode?
Maybe more noticeable in Lion and Mountain Lion, than in Snow Leopard and earlier versions of the operating system:
in safe mode, an unexpectedly large amount of wired memory.
Question
Why ...
1
vote
1answer
134 views
CPU upgrade on MacBook Pro
I'm thinking about upgrading the CPU in my MacBook Pro from its current 3210M dual core processor to a 3632QM quad core processor.
Is there any reason why this wouldn't be a good idea? The socket, ...
0
votes
0answers
101 views
MacBook unusable due to kernel_task
I've disabled hibernation, and removed the sleep image file. I shutdown my Macbook Pro (15" retina), unticked the box to open windows on restart, and started my MacBook again. As soon as I'd logged on ...
1
vote
2answers
917 views
iMac 2012 RAM upgrade with mixed voltages
Variation of already asked question:
I now understand that I can add two matched 8 GB sticks of RAM into the two empty slots, even though the other two slots are filled with two 4 GB modules. But is ...
0
votes
1answer
273 views
Macbook pro 13 2012 (HD4000) 8GB(1600 Mhz) single RAM stick issue
I have a Apple Macbook Pro 13" 2012 IvyBridge HD4000 Model which came with
2GB x 2GB RAM.
I Recently bought a single stick of 8GB RAM 1600Mhz (which is compatible).
Gskill 8GB DDR3 FA-1600C11S-8GSQ ...
0
votes
5answers
60 views
Mac Pro 2007 crashes repeatedly
Yesterday my Mac Pro 1,1 (2007) running 10.7 started freezing up. It keeps on doing this after restart. Usually it will perform one task, but when asked to do a second, it freezes. The cursor will ...
2
votes
3answers
90 views
Transfer RAM from MacBook Mid 2010 to MacBook Pro 2008
I ruined my beloved mid 2010 MacBook and planning to get a used MacBook Pro 2008 (not unibody) now. Currently, I have 2x4GB memory units in my MacBook and I would like to now if I can use at least one ...
1
vote
1answer
71 views
Disabling HD4000 on MacBook Pro
HD 4000 on my MacBook Pro shared 512 MB RAM from my main memory, which is calculated as part of kernel_task.
My question is simple, is there a way to disable it, stopping it from taking up 512 MB of ...
-1
votes
2answers
152 views
VirtualBox or Parallels: Great Visualization
I decide to choose two virtual machines. VirtualBox and Parallels.
Issue:
Which of them good enough for visualization tasks? (GPU, games)
I want to install on my Macbook Pro 2011 more RAM: 4gb -> ...
-1
votes
1answer
233 views
Why won't Macbook Pro list the spec to be able to use 16GB instead of 8GB? [closed]
I had a mid 2012, 15 inch Macbook Pro (non-Retina), and the specs says it can support maximum 8GB: http://support.apple.com/kb/sp649
But my coworker had a 4GB version and he was able to have the ...
3
votes
2answers
2k views
Using memory with a higher MHz rating?
Can MacBook Pro's successfully support and fully exploit RAM of a higher MHz rating than that which they ship with?
For example, take my 15" MacBook Pro (Late 2011) that ships with 4GB of 1333MHz ...
4
votes
1answer
1k views
Reliability of cheaper RAM like Komputerbay, or unbranded?
Online stores sell DDR3 memory from companies like Komputerbay for a fraction of the price that Kingston, Samsung, Crucial, OWC, etc. charge (not mentioning Apple OEM).
Most reviews are good, but ...
2
votes
1answer
639 views
16GB of RAM makes MacBook Pro's fans go wild before sleep?
I recently:
installed 16 GB of RAM (1600 MHz);
on my late-2011 15-inch MacBook Pro;
running OS X 10.7, aka Lion;
with an Apple SSD drive.
According to Apple my MacBook Pro only supports a ...
0
votes
0answers
66 views
Black Screen after installing RAM in MacBook (early 2008)
I've tried installing 2 x 2gb DDR2 PC2-6400 modules into an early 2008 MacBook. After installation the machine booted into a black screen, with no chime.
I tried reseating the RAM, same problem. I ...
0
votes
0answers
74 views
how do I select proper memory for a specific Mac? [closed]
I'm going to upgrade my Mac Mini late 2012 Ram's to 16 gb.
I'm undecided between cheaper KingSton KVR16S11/8 (www.kingston.com/dataSheets/KVR16S11_8.pdf), KingSton KTA-MB1600/8G suggested from ...
5
votes
5answers
3k 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 ...
5
votes
1answer
3k views
Testing a MacBook Pro's RAM upgrade
What are the best possible RAM tests that can be run on a MacBook Pro (Early 2011 running Mountain Lion) after upgrading RAM from 4 GB to 16 GB?
I see there a quite a few tools out there and the ...
0
votes
3answers
194 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. ...
0
votes
1answer
182 views
Will this RAM work for me? (Late 2009 iMac)
I have a 27-inch iMac late 2009 desktop computer and i'm looking to upgrade my ram. The best RAM I can find is a Kingston 2GB, DDR3-1066, PC3-8500, CL7, DIMM.
What I currently have is 4GB 1067 MHz ...
1
vote
2answers
57 views
How accurate is System Report on RAM speed?
I have successfully replaced 2 * 4GB DDR3 1333 MHz RAM (Samsung) with 2 * 8GB DDR3 1600 MHz RAM (CnMemory). Everything runs fine and System Report is displaying the RAM is running at 1600 MHz.
Now I ...
3
votes
1answer
152 views
find what's producing inactive memory
First of all i'd like to ask politely for all of those who feel the need to explain it to me how perfect apple's memory management is to ignore this thread.
A little background:
The theory goes that ...
2
votes
4answers
1k 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
83 views
Broken PowerBook G4
My PowerBook G4 is broken and has been for a couple of months now. I owned it while it was working for about 1 and a half years. When it broke originally, I was restarting it after changing the boot ...
8
votes
3answers
339 views
How do I automatically kill processes that leak memory?
I have problems with processes that leak memory. They cause my hard drive to be filled with swap files in /private/var/vm.
I would like leaking processes to be killed at sight by the OS. I’m not ...
2
votes
2answers
356 views
MacBook Pro running Linux - only 3.6 GB RAM available
(This is a repost of my question on SuperUser.com, hopefully it's better suited here ).
I've happily installed Linux on my MacBook Pro with 4 GB of RAM, but I only get 3.6 GB available:
...
5
votes
2answers
653 views
The free vs. inactive memory ratio on a Mac with 16 GB RAM has me concerned
I am looking for clarification since I am seeing large allocations of RAM on my Mac. I have 16 GB of RAM and recently installed Windows 7 on Parallels. When the machine runs, I see 3.55 GB Free memory ...
5
votes
4answers
2k 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. ...
5
votes
4answers
13k views
Startup disk has no more space available for application memory?
I purchased a new Macbook Pro (8,3) last April, and have been using it heavily for xcode development, and little else.
This morning a message popped up:
"Your Mac OS X startup disk has no more space ...
1
vote
2answers
253 views
Macbook Pro early 2011 16G Memory Upgrade
I just purchased a Corsair 16GB Memory upgrade for my 2.4GHz 13" MacBook Pro, but I have not been able to make it work.
If I put both modules together or one of the modules alone the Mac wont bootup! ...
2
votes
2answers
82 views
Would a late 2008 MacBook run with 8 GB or RAM if correctly purchased?
We've got a late 2008 MacBook (already upgraded to 4GB RAM), it's fine -speed wise, but when checking the activity monitor were very close to running out of space -RAM wise.
What I would like to do ...
1
vote
2answers
1k views
MacBook freezes with three beeps
My Feb-2011 MacBook Pro hangs with three beeps.
I noted the first strange thing a few days ago. The MacBook was in standby (as always) but very hot (not usual). I thought some process must have ...
2
votes
1answer
148 views
How to prevent OSX from allocating as much virtual memory as there is space available on the hard drive?
I recently had data loss because the hard drive was completely used up by virtual memory and some programs couldn’t handle zero free space on the hard drive. How can I prevent this from happening ...
1
vote
1answer
109 views
How to delete files on iMac with no menus — Your startup disk is full
I have an iMac with the 10.4 OSX operating system installed. When I boot the computer it prompts me with this message: "Your startup disk is full. You need to make more space available on your disk ...
1
vote
0answers
228 views
OSX - 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 ...
1
vote
0answers
67 views
How do I ensure smooth video and music playback without breaks?
I'm using a MacBook Pro from 2011 with 4 GB RAM and I'm experiencing problems with music playback in iTunes (music stops and starts periodically) and video playback does the same.
I've read many ...
1
vote
1answer
109 views
Can one influence Mac OS X's / Darwin's filesystem caching behaviour?
I have the following problem: When I run processes that consume a lot of memory, Mac OS X seems to refuse to release a large portion of the filesystem cache:
In fact, instead of letting go of the ~ ...
2
votes
1answer
54 views
Can I use memory taken from a Macbook Pro in a Mac Pro?
My Macbook Pro from around 2008 finally died. It has two 1 GB memory chips. (Specifically, two of this Samsung chip.) My question is: can I use these chips in my 2011 Mac Pro?
1
vote
1answer
75 views
Why does free + active + inactive + speculative + wired not equal total RAM?
When I run vm_stat on my 10.6.8 MacBook Pro with 2 GB of RAM I get the following:
Mach Virtual Memory Statistics: (page size of 4096 bytes)
Pages free: 90518.
Pages active: ...
