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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

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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 ...
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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 ...
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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 ...
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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 ...
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48 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? ...
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41 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 ...
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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 ...
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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 ...
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32 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 ...
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55 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 ...
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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 ...
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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 ...
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74 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 ...
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754 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 ...
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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 ...
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296 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 ...
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338 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 ...
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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 ...
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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 ...
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Upgraded to 16gig ram mid 2010 macbook pro core2duo, slot missing and computer not waking up

I upgraded my ram as was specified online, 1066Hz, it worked. But then, if my computer reads 16 gigs of ram, when I close my lid, it won't wake up anymore. I force shutdown with the power button, ...
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458 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 ...
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1answer
63 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 ...
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1answer
34 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 ...
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2answers
150 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 ...
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1answer
192 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 ...
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118 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 ...
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0answers
298 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 ...
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1answer
273 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? ...
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2answers
145 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 ...
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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 ...
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208 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....
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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 ...
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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 /...
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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 ...
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73 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 ...
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35 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 ...
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1answer
28 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?!
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Making Photos use more memory when it is running in the background for People Tagging tasks [duplicate]

Is there a way to make the Photos app perform more computations when it is running in the background? Basically, I read that People Tagging happens when the computer is plugged and when Photos is not ...
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Apps crashes after Memory Upgrade

I have MBP late 2011 that was 4GB RAM. So I upgraded it to 16GB. It boots fine and I can use with Firefox and some other apps, but when I try to use it with some apps (Android Studio and XCode) those ...
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1answer
38 views

Can I use slower or fastest Memory in my MacBook Pro mid 2012? Different speeds? Different sizes?

I’d like to know if there’re any side effects to these memory configurations for MacBook Pro mid 2012 (I guess this can be extended to any Macs with removable memory). Doubt 1: any side effects if I ...
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1answer
22 views

Configure Memory (Photos) titles to have a specific date format (M-D-Y or Y-M-D)

Is it possible to change the way Photos is naming the memories? Basically, it is quite stupid to name it using Day-Month-Year order, since an export of the memories using the option "Create subfolder ...
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1answer
854 views

What is the CAS latency of the memory in a Mac Mini 2018?

I'm researching a memory upgrade for a 2018 Mac Mini (in advance of purchase). I thinking to buy it configured with the base 8GB and upgrade it to 32GB with aftermarket memory modules, at a savings of ...
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2answers
141 views

Is it possible to upgrade original iMac (1998) memory (RAM) to above 256 MB?

I am looking into buying myself an original iMac, and I want to mess with the older system a little bit. Also, is it even remotely possible to change the RAM in the system to being over 256 MB. I am ...
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Mac Pro 2012 Memory failure after security update

I'm running Sierra on a Mac Pro 5,1. I've got 48GB (6x 8GB) of RAM and after updating to the last security update I've got a RAM conflict, I've swapped some modules position and I could get just 32GB ...
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219 views

Mojave Wi-Fi app using 2GB of memory

What is the application Wi-Fi, and why is it gobbling 2GB of memory? Running latest version of macOS Mojave 10.14.1 on a 2018 MacBook 15" with 16GB of memory total.
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155 views

After I upgrade to Mojave I have a major error

Sandbox: iyEyOGTe(93) System Policy: deny(1) file-write-create /Library/Updates/.dat.nosync005d.Q5RrXv My laptop is loosing hard memory, in 4-5 hours 35 GB and it heating
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1answer
60 views

Are there any steps I can take to make macOS use more of my RAM?

Last weekend, I upgraded my machine to have 32 GB of RAM. I knew I didn't really need this much memory, but I figured macOS would use it for file caching or some such. According to Activity Monitor, ...
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4answers
7k views

Is memory or storage in the 2018 Mac mini replaceable by the user after purchase?

The tech specs of the Mac mini 2018 is unclear if the RAM or SSD can be upgraded by the user.
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Mac running slow on specific user. A lot of stuck processes found in top

SPEC I'm running Macbook Pro 13 inch mid 2012. i5 2.5GHz with 8G memory. Mac OS on the SSD and home path of the user account is at the other HDD. OS: Mojave v10.14 (Just updated. This problem has ...
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unexpected reboot then unable to boot

Model Name: MacBook Pro Model Identifier: MacBookPro10,1 Processor Name: Intel Core i7 Processor Speed: 2.3 GHz Number of Processors: 1 Total Number of Cores: 4 L2 Cache (per ...