Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [memory]

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

0
votes
0answers
15 views

Can I upgrade the RAM

I plan to purchase a used MacBook Pro from someone and the configuration is mentioned, MacBook Pro a1286 15 Zoll Ende 2011 i7 2,2GHz 8gb RAM 500 GB HDD The serial number is CO2HFHQHDV7L Will I be ...
3
votes
1answer
22 views

MacBook Air 7.1 (early 2015) freezes for five to ten minutes after login

Recently, my MacBook Air 7.1 (early 2015) has been very slow on startup. That is, the system boots quickly, and then I'm able to login, and the desktop begins to load. Initially, I have control and ...
1
vote
0answers
28 views

iPhone 5s has 5+ Gb of free memory space but refuses to take photos saying “Storage is full”; reboot works for a while

I have an iPhone 5s (16 Gb). It currently has 5.6 Gb of free memory space, but refuses to take photos, saying "Storage is full". When I reboot it, it does take photos for a while, but then again this "...
1
vote
1answer
22 views

What is the difference between Memory, Real Mem, and Compressed Mem?

I've already seen this question: What's the difference between Real, Virtual, Shared, and Private Memory? but I think it might be outdated. Specifically, there is a Memory column, as well as ...
2
votes
2answers
57 views

Change output format of “top” command in Mac OS for memory usage?

I am using the top command in Mac OS from this answer to grab memory usage: $ top -l 1 -s 0 | grep PhysMem PhysMem: 5490M used (2569M wired), 11G unused. Can I go from that to possibly printing out ...
1
vote
0answers
25 views

How to tell a process not to use swap and virtual memory on mac?

I would like to run a specific program and tell it not to use swap or virtual memory. I'm ok with having the OS kill the process when it is OOM. I don't want to change the machines general ...
0
votes
0answers
22 views

Why is iBooks.app taking 650 MB memory on MacBook Air after updating to 10.14.5?

I have books of around 110 MB but I haven't used the app very much recently. I tried opening and quitting the app. And quit the process from activity monitor too.
0
votes
0answers
16 views

Which memory bank is which?

On a Macbook Pro 17" 2008 (Penryn), which memory bank is bank 0 and which one is bank 1? I can't find a diagram indicating which is which, when looking down at the slots, with the RAM cover removed (...
1
vote
2answers
110 views

Does running both (XCode & Android Studio) at the same time overload my MacBook Air with only 8 GB of Ram

This IDE is for the Automation Testing Purpose. Along with Appium Server, I need to run the Emulator of Xcode's iOS Emulator and the Android Studio's Emulator. Does this Run smoothly in the 8GB RAM ...
0
votes
0answers
15 views

MacBook Pro shows blank screen then shutdown [duplicate]

My MacBook Pro Retina (15inch Late 2013) shows blank black screen Shutdown randomly here are the logs can you tell the reason ?
3
votes
2answers
119 views

iMac 27" 2017 memory upgrade question

I have 16GB of RAM installed on my iMac 27" 5K i7 2017 (2 x 8GB). There are 4 slots in total and I would like to add another 16GB. I don't know if it's best to buy 2 x 8GB or 1 x 16GB?
1
vote
1answer
44 views

iMac 27", Mid 2010 (11,3 model)

I have an iMac 27", Mid 2010 (11,3 model), "Core i7" 2.93 GHz. 4*2GB installed RAM..Plan to upgrade. Any thoughts, experience if 4 * 8 GB would work if upgraded to or is 16GB with 4*4GB max I can ...
3
votes
1answer
111 views

Will upgrading to a 32 GB RAM Macbook Pro significantly speed up Adobe Illustrator?

I use Illustrator to create large, detailed pattern designs. The .AI file size of one of these designs typically exceeds 500MB. When I’m working on a large file like this, Illustrator performance is ...
1
vote
0answers
41 views

Installing 1600Mhz memory in a Mac Mini that uses 1066Mhz memory

I have an old Mac Mini (2009, Core 2 Duo) which uses 1066 Mhz DDR3 RAM modules. However, I haven't been able to find them near me; the closest I've found are 1600Mhz modules, which have otherwise the ...
1
vote
1answer
92 views

How to find out whether NVRAM was reset?

I was having some issues with my mac so I reset NVRAM by holding ⌘+⌥+P+R. The problem is that this laptop does not chime when NVRAM is reset, so I'm not sure if NVRAM was indeed reset. How can I ...
3
votes
2answers
412 views

Is it possible to force a specific program to remain in memory after closing it?

Alfred is great, of course, and I use it all the time. However, if I haven't opened it for a little while it can take a few seconds to open the search-bar UI. Otherwise, it will open in less than a ...
3
votes
1answer
23 views

iMac 27-inch, Late 2014, RAM upgrade size combinations

There are 4 slots. 2 slots taken by 2x4GB that came with Mac at purchase. Max memory is specified as 32GB. Can I buy 1x8GB and 1x16GB to fill the remaining 2 slots. Or do I need to use 8GB for both ...
0
votes
0answers
24 views

Wired memory is 3.5GB on launching Mojave

I have a feeling something isn't right here. My wired memory on my 2014 MBP (Mojave) is around 2-2.5GB, my 2012 iMac (high sierra) is around 1.5GB. My new imac Pro is sitting between 3.5GB-4.5GB. I ...
2
votes
0answers
60 views

How to fix MacBook Pro Display which is not working [closed]

I guess the reason you clicked this question is that you thought it was the backlight issue but it is not. This problem puzzles me. ISSUE: My display does not work. What MacBook do I have? ...
3
votes
1answer
54 views

Can I use one 8GB RAM module in place of two 4GB modules?

I have a MacBook Pro 13-inch, Mid 2012 and one of its RAM slots appears to have been damaged (The computer restarts when moved too much). So I can only have one RAM module in it. I was reading on ...
0
votes
0answers
18 views

Apple iTunes (Music): memory still on iPhone 5s after I having deleted the iTunes (Music) app. What to do?

I have deleted the iTunes (music) app from my iPhone 5s. Yet when I go to Storage & iCloud Usage > Manage Storage, I still see Music there with a couple of GB of usage there. What is going on? How ...
0
votes
0answers
31 views

MacBook Air heating up and lagging for no apparent reason

Earlier today I had a few apps open, and one of them was Safari, which had some tabs open which may have been using a lot of energy and/or memory. (One of them was this program by me which draws a ...
0
votes
1answer
37 views

Memory upgrade options for iMac Pro?

I'm considering getting an iMac Pro. I'd love to max out the crazy amount of memory but beyond my budget. Thinking of getting 64 GB RAM. If I did want to upgrade after purchasing, would I need to get ...
0
votes
2answers
98 views

Encrypted forgot password NO Recovery Key

I forgot my password to my Macbook Pro and I dont have the recovery key. I dont ever remember putting my computer on FileVault lock...to the point well forgot my password. I need help :'( I have ...
-1
votes
1answer
51 views

RAM recommendation for hosting 8gb Linux Mint under Virtualbox?

I need to run the latest version of Linux Mint (19.1) under VirtualBox for software testing and debugging. To get the tested apps to run well the VM needs to have 8gb ram, but right now that's the ...
1
vote
1answer
58 views

Tracing PHP process killed on Mac does not work

I'm running a simple PHP process that uses a tiny bit of memory and CPU. The max memory limit is 2G and the script is run from console. The memory used never exceeds 200 MB. CPU use fluctuates ...
3
votes
1answer
257 views

what is the Update from iMac OS X 10.6.8 [duplicate]

When I go into my Apple Software Updates on my OS X 10.6.8 computer to update to OS X 10.9, the computer tells me that I do not have any new updates. How can I upgrade to OS X 10.9 if it does not ...
3
votes
2answers
828 views

just upgraded iMac late 2015 ram from 12 GB to 28 GB and it became too slow to use

I had added an 8GB RAM along with existing 4GB when I purchased this iMac in 2016. For all this long it was running fine when lately I thought to add more RAM. So yesterday I added 2 more 8GB RAM ...
1
vote
0answers
22 views

Music stuttering

I'm trying to listen to music on my Mac, but no matter if it's via YouTube, Spotify or iTunes the music will simply stutter. My system specs are: macOS Mojave 10.14.3 MacBook Pro (13-inch, 2018, Four ...
2
votes
1answer
806 views

Wi-Fi process using up to 16GB of memory

Sometimes when I switch Wi-Fi network or connect to a VPN via Global Protect the memory usage of /System/Library/CoreServices/WiFiAgent.app shoots up and my fans go mental. Why? This screenshot is ...
3
votes
1answer
343 views

When using Volatility with a memory image, what is the Kernel version?

The Volatility memory forensics framework github website lists these Mac profiles for OS 10.11: Profiles -------- MacElCapitan_10_11_15A284x64 - A Profile for Mac ElCapitan_10.11_15A284 ...
0
votes
0answers
60 views

Dual CPU Mac Pro 4,1->5,1 won't boot with more than one RAM stick per processor

I was working on my dual CPU Mac Pro 4,1 (upgraded to 5,1), having removed the CPU tray to access the board behind it, and subsequently the machine was non-bootable. Following the process of building ...
0
votes
1answer
14 views

Can I put MacBookPro5,1 RAM in a MacBookPro5,2?

I have an old 5,2 17” June 8, 2009 MacBook Pro that I want to upgrade the RAM in, can I put some slightly older MacBookPro5,1 RAM in it, or will it not function right? I’m assuming it will mess up the ...
7
votes
1answer
462 views

How to limit RAM in an OSX device? [duplicate]

Related to my other question, I'm about to buy a new Mac Mini. I would like to reduce RAM to 8GB in order to see if 8GB is enough to my daily tasks in my MBP retina 15 early 2013 16GB RAM. The idea ...
0
votes
1answer
134 views

How much RAM memory do I need for an OSX device? [closed]

I'm about to buy a new Mac Mini and I would like to know if it's enough with 8GB RAM or I would need 16GB. Linked is my MBP 15 early 2013 16GB RAM usage in a current daily usage. memory pressure ...
2
votes
1answer
43 views

Is there an equivalent of Linux's kernel memmap on OS X?

According to memtest86, there is a persistent single bit error in my MacBook Pro's 16GB of DDR RAM. Since the error is in the second half of the physical address space, I can work around the problem ...
2
votes
2answers
360 views

How to determine if the graphics card is at fault on an iMac?

I ended up with an Mid 2010 21.5" iMac that I wanted to dust off and give to my kids. They have light needs, but I'd love to start introducing them to messaging and email with family, plus some ...
2
votes
1answer
263 views

Should We Still Install Matched Pairs of RAM?

When I say "still", I'm not actually talking about current generation Macs. I'm specifically talking about 2012's. Is there still benefit to installing matched pairs or are those days long gone? I ...
1
vote
1answer
296 views

How smoothly does Xcode 10.1 run on 2017 MacBook Pro base model (8 GB RAM/128 GB SSD)? [closed]

I am planning to buy a 2017 MacBook Pro base model (8 GB RAM/128 GB SSD) for iOS app development and I am on a budget. I would appreciate if I get answer to the following questions before I decide to ...
2
votes
0answers
491 views

Why is my Wi-Fi Process eating >2GB memory

Why is the Wi-Fi process taking so much memory? EDIT: Apologies, I should have clarified my question. I'm a web developer that spends most of his time developing apps locally. Not interacting with ...
1
vote
1answer
384 views

30GB out of 32GB being used for wired memory?

I have 32GB of memory and am downloading stuff over FTP using FileZilla. My memory usage is 31GB with 30GB of that being allocated for wired memory. Is this normal when downloading stuff over FTP? ...
3
votes
2answers
211 views

Black screen when using 4 ram sticks on brand new iMac 5K

I bought a 5K iMac 4 months ago, with the stock 8gb of ram. I bought an extra 2x4GB off Amazon (Crucial Ram). But then, it looks like I cannot use all 4 ram slots at the same time. The iMac won't even ...
2
votes
1answer
36 views

Macbook 2009 Memory Question

I'm working on a MacBook (13-inch, Late 2009) 2.26 GHz Intel Core Duo. I'm attempting to install two memory modules labelled 4GB DDRL-1600 SODIMM by Crucial (Memory Module A1/A2) I'm unable to ...
0
votes
0answers
365 views

“Critically low disk space” error when running python script since upgrade to OSX Mojave

I have a problem with a python script that is getting killed due to, what I believe, low available memory but I hope is a bug. Description as follows: I have a python script that loads 12 large (1-1....
0
votes
1answer
32 views

How willl a Mac Mini's SSD effect the maximum process size when use swap?

Reading, possibly out of date info, elsewhere OS X seems to limit the maximum process size according to the total RAM and a fixed proportion of the available disk. The new 2018 Mac Mini is very ...
1
vote
1answer
21 views

How do I get the memory allocated to a ramdisk back?

I wanted to use a ramdisk. SoI created one, filled it with 3GB data and unmounted it. Like this: diskutil erasevolume HFS+ 'ramdisk' `hdiutil attach -nomount ram://8388608` cp -pr some3GBdirectory /...
0
votes
1answer
67 views

What is the purpose of speculative memory?

Recently, I've found out that Darwin has speculative memory metric. But, I don't know what the purpose of speculative memory. The memory metric can be checked using vm_stat command on terminal. Mach ...
4
votes
1answer
90 views

Why did deadbeefdeadbeef become deadbeeedeadbeef?

My computer had a sudden shutdown today, and part of the associated report is found below: ** Panic Report *** panic(cpu 4 caller 0xffffff800a4bade0): "a freed zone element has been modified in ...
0
votes
2answers
38 views

OK to use higher RAM than Apple “allows” it? [duplicate]

I am looking to upgrade RAM on a MacBook mid-2010, Model A1342. According to apple, I can only upgrade up to 4GB of RAM (currently only has 2GB). I don't want to blow up the computer if I add 8GB of ...
0
votes
1answer
29 views

Trying to fit iMac 27 Late 2013 memory into iMac 27 Late 2009

When shoving the memory in, I cannot get it to click (or get it deep enough for the lid to close). Are the dimensions different or do I need to push harder?!