Questions tagged [imac]

iMac, a range of all-in-one Macintosh desktop computers from Apple

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13k views

Using an iMac as a monitor for a mac mini

I currently have an old 21 inch iMac that won't run Lion because it doesn't have a 64 bit chip. Other than that it works absolutely fine. I am however a part time developer and so I really need to ...
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1answer
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DIY Fusion drive with 3 drives

Is it possible to build a DIY Fusion drive using 3 drives - 2 HD's and 1 SSD? Will the Fusion machinery optimise on three levels i.e. SSD, then fast HD, then slow HD? I have a mid 2011 27" iMac, ...
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2answers
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iMac ram memory installing 16GB vs 20GB

I have a mid-2011 27" iMac with i7 processor. It came with 4 gigs of ram (2x2GB). I just bought 2x8GB of matched memory. I am wondering two things 1. is it good/bad/neutral to leave in the ...
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1answer
143 views

Upgrading iMac G3 memory

I got an iMac g3 450 mhz (summer 2000 i think) and i want to upgrade its memory. I know i need PC 100/133 168 pin . I already got one 512mb from amazon with those specs although it didn't work. For ...
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5answers
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What causes 5 pink bars on 27" iMac (2011)?

I've got a 27 inch iMac made in 2011 that displays 5 pink vertical bars on the screen. It won't boot properly. I ran the Apple Hardware Test and it came up clean. Machine Specs: Apple Subfamily: ...
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1answer
1k views

What's the easiest way to free up disk space on my iMac with a huge photo library?

This is a hybrid hardware/software question with a few more factors than the typical "freeing disk space" question. I have an older iMac with (I think) about a 250 GB hard drive. It's been running ...
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1answer
2k views

Wake sleeping screen with mouse move not click?

Prior to Lion I believe moving the mouse woke a sleeping(powersave) screen, and now in Lion you have to click. Often I am in the situation where I am about to go to bed and want to sleep my imac, but ...
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2answers
46 views

Can you programatically tell if the webcam is in use?

I'm trying to run some commands when I start and stop using the (built in) webcam on my 2015 iMac running Catalina. It sounds like historically lsof | grep "AppleCamera" would once tell me ...
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1answer
953 views

How do I enable Time Machine local snapshots on an iMac?

I have an iMac with a Fusion drive running High Sierra. Time Machine is enabled and backs up to an external disc. Time Machine takes daily local snapshots so that you can go back to a specific day, ...
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1answer
318 views

iMac WiFi Hotspot not Working

I have a late 2009 iMac running 10.12.5 that I am attempting to set up as a wifi hotspot. My current internet connection is DSL (ethernet). I finally found a guide online how to actually do this and ...
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1answer
172 views

How to save a file quickly and no need to wait for the external hard drives to “wake up”?

Recently I have decided that since Mac does such a nice job for indexing the files, I will store many files on the Mac, so I bought a 6TB Thunderbolt external drive which is in RAID 0 Strip mode, and ...
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3answers
12k views

iMac iPhone USB Internet Sharing

I have a MacBook Pro and a iMac. On the MacBook I see a network interface named "iPhone USB" in my Network Settings. On the MacBook the internet sharing over usb works fine. But on the iMac it doesn't ...
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4answers
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Why does my iMac freeze since I upgraded to Lion? And how can I fix it?

My iMac (late 2009) worked great with Snow Leopard. After upgrading to Lion I am loosing the Mac vs. Windows war at home. The iMac freeze except for the mouse. The only thing to do is to restart with ...
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3answers
41k views

How should different sized RAM be added to iMac?

I have a mid-2011 iMac which came with 4GB RAM (2x2GB). I just bought 8 GB (2x4GB) and added it to get a total of 12GB. The current configuration is as follows: Given that the RAM is a different size,...
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4answers
7k views

How to share internet connection via thunderbolt?

I have a recent iMac and will buy a new MacBook Air. And I'm finding fastest way to connect internet to the Air. Wi-Fi is still too slow and USB-Ethernet converter offers only 100-Mbit speed. But both ...
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2answers
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Is it possible to force the next boot to be a recovery mode boot with a bluetooth keyboard?

I wanted to test the new recovery mode in Lion and can't find a way to enter that mode using a bluetooth keyboard. There are steps how to get a single user mode or safe boot using sudo nvram boot-...
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1answer
6k views

Xcode 10 runs really slow and slows my entire computer down

I'm currently using Xcode 10.1 and it's driving me crazy, it slows my computer down to a point that it is unusable. Before I upgraded to Xcode 10 I was running the same project on Xcode 9 and High ...
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1answer
134 views

Mac refusing to shut down because of finder?

When I shut down, restart, or update and restart my mac goes about shutting applications down to get ready to turn the computer off as it normally does but after my top bar and desktop icons have gone ...
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1answer
5k views

What's the technical reason some Macs can't use Boot Camp with macOS Mojave?

As written on MacRumors and other places Macs using 3TB Fusion Drives for the macOS and Boot Camp installations can't be upgraded to Mojave currently without losing the Boot Camp partition. To fix ...
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2answers
2k views

iMac wireless speed drops precipitously after extended time away

I had a correct connection to the Internet: But as of a few days ago, whenever I come back to my computer after a while and jiggle the mouse to turn off the screensaver, my internet speed plummets: ...
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3answers
12k views

Most suitable Mac OS 10.6 through 10.9 for early 2009 iMac

I have an early 2009 iMac (9,1), currently running Mac OS 10.5. Now I want to use it as a media center and install XBMC, which only supports Mac OS 10.6 and upwards. The question arises, which OS ...
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1answer
2k views

Target iMac does not wake up with the main iMac

I have two 27" iMac connected via a Thunderbolt cable. I press Command+F2, the target computer joyfully becomes a second screen for the primary iMac. Joy of joys! I come back in the morning, or after ...
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2answers
11k views

Mouse pointer intermittently jumps to corner of screen

I recently got two new Macs, an iMac (with magic trackpad) and a MacbookAir (both the most recent models - mid 2011 and both with Lion). They are both suffering from the same issue so I don't think it'...
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1answer
418 views

External disk stalls iMac

I have a weird problem with an external disk connected to my 27" iMac running OS X 10.6.5. It is a 1TB LaCie d2 Quadra and it is connected through Firewire. I use this disk primarily for Time ...
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0answers
4k views

Use built-in iMac camera on display connected via Thunderbolt

I've got a 27" iMac connected via Thunderbolt using Target Display Mode. It all works fine. I am wondering if there is a way (hack or otherwise) to activate and use the built-in camera from the iMac ...
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0answers
2k views

Is it possible to have an iMac maintain target display mode even through sleep/screensaver

I want to be able to make it so that my iMac doesn't exit target display mode until the thunderbolt cable is pulled from my Macbook. I love target display mode in theory, but every time I lock my ...
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3answers
12k views

Apple USB Keyboard not working on 27" iMac (Intel Core i7)

I have two similar iMacs (27" - i7 - os10.8.4 ) and use Apple's extended USB keyboards on both of them. After a power outage neither keyboard will work on one iMac (A) although both keyboards work ...
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3answers
6k views

Magic Mouse Gesture not working OS X Mavericks

I am using Magic Mouse with my iMac having OS X Mavericks 10.9. Everything was working fine since today morning, I realized that my Magic Mouse is only responding to scrolling and primary, secondary ...
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6answers
3k views

Lifespan of 2011 iMac

I have a 27" 2011 (i7 3.4ghz 24GB RAM) iMac that I just replaced the drives (1 SSD and 1HDD) in 2 years ago. It runs pretty well now, but is just starting to slow down (and pales in comparison to ...
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1answer
18k views

How can I speed up my new (but slow) 2017 iMac?

I have a mid-2017 iMac that we purchased in September to replace our ageing mid-2010 iMac. The thing is this iMac feels slower than our old iMac. My husband and kids complain all the time too, so it’s ...
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5answers
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How can I adjust brightness of 3rd Party external monitor on iMac, Macbook or Mac Pro via keyboard?

Apple stopped Thunderbolt display and Cinema display line. Recently announced an ungodly expensive 'reference monitor' beyond the need and budget of most people. For my iMac, I bought two Apple-...
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2answers
1k views

Recommended disk format for external SSD running as system drive for a 2019 iMac

I'm setting up a new 2019 iMac with an internal Fusion drive. I have an external 1TB Samsung T5 SSD drive that I'd like to use velcroed to the back of the iMac as the main system drive in order to ...
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1answer
13k views

How to examine disks and their partitions via terminal?

I am trying to examine my settings to prepare for a triple boot and would like to know how to completely examine my HDD before to make sure I know everything usefull for the project to know about it.
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5answers
26k views

“iTunes could not connect to this iPhone. This device is no longer connected.”

I have a first generation iPad Air (with up-to-date iOS 8.1) When I connect it to my 2013 iMac (with up-to-date OS X Yosemite 10.10) - it doesn't work. Specifically - iTunes automatically launches, ...
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3answers
5k views

Backup and Sync has encountered a fatal error, and will now terminate. Mid 2011 iMac - High Sierra

I recently updated my 27in Mid 2011 iMac to a 1Tb SSD HD and to High Sierra. Now I don't have access to my Google drive :( I've been looking everywhere and have found no solution to this. Can anyone ...
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1answer
2k views

How can I enter recovery mode (for Mac OS, on an iMac) remotely?

Our team administrates several Macs. To save costs (flights, etc.) in events where we have to remotely restore a system at our client location, we are trying to understand how to enter recovery mode ...
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4answers
22k views

Is it normal for a 27" iMac to have CPU core temperatures around 95C under 100% CPU load?

I have a 2017 27" iMac with a 4.2 GHz Intel Core i7. It's been having some issues lately where every now and then the entire system will gradually freeze, forcing me to hard reboot the computer. So to ...
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3answers
50k views

Screen sharing MacBook-pro to iMac

I wonder if there is someway of sharing the screen on my macbook pro (which stands on the right of my iMac) to the iMac, so that I can use the same keyboard and mouse for both computers. I believe ...
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3answers
1k views

iMac occasionally gets very sluggish. Memory Pressure is high and its hard to use computer. Why is this?

I have a mid-2010 iMac running High Sierra. It has started getting very sluggish several times a week. I have tracked it down to the memory pressure and the process kernal_task. Shown below is a ...
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2answers
23k views

Install OS on iMac with blank hard drive

Is is possible to get a late 2010 iMac with a blank/new hard drive up and running with the latest OS and XCode? All the answers I've seen involve duplicating or restoring an existing OS. Is there a ...
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2answers
2k views

Is using mid 2012 MacBook Pro RAM in mid 2011 iMac 27" an option?

I recently came into possession of a 27 inch mid 2011 iMac. It only has 4GB RAM and I have been pricing compatible memory modules online. I then remembered I also have a 13 inch mid 2012 MacBook Pro ...
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3answers
576 views

My iMac shows another connect computer what is it?

I am kinda freaked by this new computer that seems to be connected to my imac. It showed up ok I noticed it about 3 days ago. Am I being hacked? When I looked up epson it showed a microprocessing chip ...
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3answers
2k views

Backup/Time Machine solution for an office full of iMacs?

EDIT: For anyone coming across this question, the best solution I've found is a cloud backup company called Backblaze — it's in the cloud, so no longer have to worry about hardware failures and we now ...
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2answers
2k views

Can iMac 5 (Retina 5k, 27-inch, Late 2014) be downgraded if it comes factory-installed with Yosemite?

Has anyone downgraded an iMac 5 (Retina 5k, 27-inch, Late 2014) pre-installed with Yosemite to an older version of Mac OS? My Pro Tools 10 does´t work with Yosemite. I have two days to resolve this, ...
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2answers
13k views

Can I use a Mid 2011 27 inch iMac (Thunderbolt) as a display for a PC?

There are other questions on here that are similar, but I believe they relate to older models. If this is a dupe please close it though - I just want to find out if this can be done. I bought a 27 ...
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2answers
14k views

Upgrade the hdd in the new mid 2011 iMac without buying an Apple certified hdd?

It has been recently discovered that Apple uses a new 7 pin hdd connection in their mid 2011 iMacs. When a none Apple certified hdd is installed the fans kick on during boot and system fails to start. ...
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2answers
257 views

2015 Retina iMac Unable to Display 4k@60 Hz on My External Monitor

Recently I purchased a 4K monitor for my Mac. I have a MiniDP to HDMI 2.0 converter and a HDMI 2.0 cable. I connected my late 2015 Retina iMac to the external monitor. I was able to get 4k@30hz on my ...
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3answers
19k views

Connect my 2015 Macbook Pro to my 2019 iMac as an external monitor

I have a 2015 Macbook Pro (Thunderbolt 2 port) for which I would like to use my iMac 2019 (USB-C Port) as an external monitor. What type of adapter and cable should I buy to make this work?
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1answer
887 views

Which OS should I downgrade to?

I recently bought a 2nd-hand iMac which has the following specifications: iMac (27-inch, Mid 2011) Processor: 3.4 GHz Intel Core i7 Memory: 16 GB 1067 MHz DDR3 Graphics: AMD Radeon HD 6970M 2048 MB ...
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4answers
8k views

How do I input ^ instead of ˆ

In my iMac 21.5-inch computer (OS X El Capitan Version 10.11.1) I have a cordless keyboard. At the top of the key 6 I have ˆ instead of ^. This is a problem. I never have needed to use ˆ, however ^ ...

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