Questions tagged [imac]

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

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11 views

Booting iMac from External SSD & UASP support in iMac, Docking station or USB to Sata Adapter?

I have Late 2013 iMac which has 5400 RPM HDD and I find it really slow. So, I purchased a Crucial MX500 SSD. I have now cloned my HDD to SSD using superduper and then booted from it. It worked. But I ...
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Need help, tips, suggestions on downgrading Catalina to Mojave and dual-boot [duplicate]

iMac 21.5-inch, 2019 Shipped with Catalina Goal is to have two volumes. One with Catalina, the second with Mojave. I have already downloaded Mojave and plan to create a bootable drive using disk ...
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How to use iMac (27-inch, Late 2013) as a second monitor for Macbook Pro (13-inch, 2020)? [duplicate]

I bought Thunderbolt 3 (USB-c) to Thunderbolt 2 by Apple and Thunderbolt Cable (0,5m). Cmd+F2 doesn't work for me. I guess it's just because Apple now prevents to use old iMacs as monitor with new ...
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3answers
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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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MBP & iMac - FacetimeHD green light but black screen

My question: My Macbook Pro (2017) and iMac (2012) both seem to have a problem with the FacetimeHD camera: the green light turns on, but I get a black screen in all video apps like Zoom, Facetime and ...
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3answers
1k views

How do I make an HDD as fast as an SSD?

I have a really slow iMac that I bought 2 years ago. I've been so annoyed about how I have to wait for the rainbow circle to stop loading. I did some research and found out it's about the hard drive. ...
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3answers
44 views

Sharing serial number to a potential buyer?

I am selling my iMac over Facebook and a potential customer is asking for serial number. I am not really comfortable with the fact to share with him but do not know what will happen if I do or why he ...
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1answer
27 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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9 views

Hibernate or StandBy mode for no reason

I'm stuck to find the reason my iMac is sometimes entering in Hibernate (or standby) mode. Here is my configuration: OSX version: macOS Mojave (but I have this issue with the previous versions too), ...
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1answer
31 views

Why is it that my 2014 MacBook pro faster than my 2017 iMac [closed]

My MacBook is old and overheats a lot, and my iMac is new, has 4k resolution, a quad core CPU, but it's slow. The main difference is that my new iMac has a 1TB HDD, and my old MacBook has a 128GB SSD. ...
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0answers
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iMac Mouse Stuck in Scroll Mode

Thanks in advance for anyone who can help. My 2009 27" iMac suddenly starting having mouse issues, rendering it almost unusable. The best way to describe it would be as if the mouse were ...
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23 views

How to get past firmware lock in iMac?

My 27inch imac has locked firmware, after working ok the day before will not go into recovery mode can i bypass this, as apple say because i bought it second hand and not from apple they cant help?
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2answers
25 views

Link Displays Between Two iMacs (Late-2015 Retina running Sierra and 2017 running Mojave) Using Thunderbolt-to-Thunderbolt

I'm hoping someone can help me (and that this is possible, considering I just spent an arm and a leg to facilitate this setup). I have a late-2015 iMac (27" Retina 5K display, running Sierra) and ...
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4answers
198 views

Is it worth unsplitting my fusion drive?

I was messing around with my iMac and got to a point where I had to reinstall the OS, but it turned out the Fusion Drive had split into a 1 TB hard drive and a 24 GB flash drive. After looking around ...
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3answers
67 views

Can I turn an old iMac (early 2008) into an external monitor

I have a dead iMac 24" (Early 2008) that has a broken graphics card (and doesn't boot up to any system), I was wondering if I could convert this into an external display for my Windows PC, ...
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6answers
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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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0answers
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2015 27" iMac unexpectedly wakes from sleep after upgrade to Catalina

Before upgrading to Catalina, my 2015 27" iMac would reliably stay sleeping as long as I had manually put it to sleep from the Apple menu. After the Catalina upgrade, I'd say at least 50% of the time,...
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1answer
69 views

Sensor in Apple Logo at the Back of iMac

I am cleaning and preferrably washing the iMac aluminium casing. I have removed all the hardware from the iMac except the sensor placed at the back side where Apple logo is. I would like to know what ...
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4answers
722 views

Does 64-bit compatibility matter with files/documents?

macOS Catalina runs only on 64-bit, so when I reload my existing Microsoft Office files, will they be "read only"?
0
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1answer
48 views

Problem with dots on macos mojave

I updated my iMac and now I get dark blue and light blue color on the “dots” to close fullscreen instead of the normal green, yellow and red dots. Can someone help me or this is or is this how the ...
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0answers
22 views

Target Display Mode using 2019 MBP and 2012 iMAC

I currently have: 2019 MBP on MacOS 10.14.6 2012 iMAC on MacOS 10.14.6 (thunderbolt 2) I am connecting them to each other using a Thunderbolt 2 to Thunderbolt 3 adapter, both of which are brand new....
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40 views

How do i create a OSx bootable USB using windows 10 and where do i find .dmg file?

I have an iMac 2007 20", and its a second hand computer. It was running OSx Lion when I bought it, then I upgraded it to El capitan, After that, I made a big mistake of erasing the data without taking ...
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1answer
40 views

Can't get 5120 x 1440

I bought a LG 49WL95C-W 49" 5120 x 1440, but I can't run it at this resolution with my MacBook Pro (15-inch, 2018) (it's work fine with my iMac 5K. It's seems that max I can get is 3840 x 1080 (...
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39 views

2011 iMac12,2 Windows 10 BootCamp SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (igdkmd64.sys)

During the setup process of the Windows 10 install (where it says stuff like "getting your pc ready" or whatever), my mac BSODs with the error: Stop Code: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED What ...
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0answers
49 views

iMac will not boot after Catalina auto-update

I woke up the other morning to a prohibitory icon (circle with a line through it) on my iMac. I believe this was due to a failed Catalina update but I am not sure. I had it set to auto-update. I am ...
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1answer
44 views

Late 2012 iMac - Thunderbolt : no hardware was found

I have an Late 2012 27" iMac (iMac13,2) and somehow when looking in system report for the Thunderbolt ports say "no hardware was found.” I have tried: Endless searching to find a solution Resetting ...
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1answer
18 views

Disk locked after formatting

I am selling my iMac and I formatted every disk which also included startup disk and there is none. Now when I go to reinstall macOS, it shows the disk is locked. When I go to disk utility, it shows ...
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1answer
30 views

How do I fix small gap at top and on the left of iMac display?

I have an iMac mid-2010 (11,3) that is showing a small gap at the top and left side of the screen in the built-in display. It is almost like the screen position is off, or the display is not being ...
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1answer
24 views

iMac 2019 fans rather loud (and at 2850rpm) when only 30% CPU - is this normal?

Situation: new iMac model retina 21.5-inch 2019, 3.2GhZ 6-core intel Core i7 I can not hear fans at all during normal non-cpu intensive operation (web browsing, etc.). They are at 1200 rpm. This is ...
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2answers
378 views

Target Display Mode not working on MacBook Pro 13" 2020

I am using a 2011 iMac as an external monitor (and speakers) for my MacBook Pro (2014) on a daily basis. Last week, I upgraded to the 2020 MBP 13". The new MBPs with USB-C are supposed to work with ...
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2answers
24 views

Bluetooth and wifi stopped working

Yesterday suddenly the bluetooth and wifi stopped working, while iMac was on and on screen saver. I have tried several restarts and tried to follow the bluetooth debug and reset options as well as SMC ...
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0answers
22 views

Internet Recovery Screen Stuck

I am attempting to factory reset my mid-2011 iMac, and so I tried to boot my iMac into Recovery Mode. I held Cmd + R, however it gave me a grey screen with a stop sign symbol, and then powered off. I ...
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1answer
351 views

Compare between Apple Mac computers

I am thinking about purchasing an Apple Mac computer. But I am confused between the different types of Apple Macs available. I am clueless how to make a choice. Is there any website or a resource ...
1
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1answer
13 views

Using Late 2015 13“ MacBook Pro as a 2nd monitor for Late 2015 27” iMac

I have a Late 2015 13" MacBook Pro (HDMI, Thunderbolt 2, and USB 3) that I want to use as a 2nd monitor for my Late 2015 iMac (Thunderbolt 3 aka USB-C and USB 3). What is the cheapest/best cable ...
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0answers
14 views

max resolution for external monitor with iMac 5K [duplicate]

I was just about to get a LG 49WL95C-W (5120 x 1440) for my iMac Retina 5K, 27-inch 2017, (either with a USB-C Thunderbolt 3 or USB-C to DisplayPort) but I was told the iMac might not be able to ...
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0answers
17 views

iMac (early 2008 macOS 10.11) showing colourful lines during startup [duplicate]

I recently fixed an old iMac (early 2008) that was showing lines during boot and then going into white screen, I installed Ubuntu Server first and the problem seemed to have gone away, then i tried ...
2
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1answer
28 views

Grant Terminal Access to Web Cam

I am currently working remotely due to the pandemic, and am attempting to identify the physical room that a set of lab iMacs are currently in. Our CMDB states that these machines are in Room A; ...
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0answers
16 views

Not getting verification codes on iMac running macOS 10.10 [duplicate]

I recently fixed an old mac (early 2009), and updated it to macos 10.10 (Yosemite). When i logged in with my apple id it sent a verification code to my iPad and it worked fine, but when signing in to ...
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1answer
24 views

Use an iMac with Thunderbolt as an external display [duplicate]

I can't manage to connect my iMac (Retina 5K, 27-inch, 2017) Display with my MacBook Pro (15-inch, 2018). I have an Apple Thunderbolt 3 USB-C cable, both computer are on (logged with an admin user), ...
1
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1answer
28 views

27" iMac with mini display port and Windows 10 - use in target display mode?

I have a 27" iMac, with a mini-display port. I do not have MacOS installed on it. Instead I have Windows 10 installed on it. Can I enable target display mode using this configuration? If not, how ...
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0answers
16 views

21.5" iMac Mid 2010 | Restarting On Boot OSX Utilities Menu

I made an OSX High Sierra Bootable USB. The iMac starts fine and enters the MacOS Utilities GUI screen. But when I press either Disk Utility or Install MacOS, the iMac restarts ubrubtly. What could ...
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0answers
11 views

iPhone TOTP app with local backup?

Is there an iPhone TOTP app that can back up and restore its security keys to a file on my iMac? This is the problem I am trying to solve: I want to use a TOTP app on my iPhone to perform 2FA on a ...
3
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3answers
40 views

Unable to take off 27” iMac stand

I got a 2018 27" iMac which I want to mount. I got an Apple VESA toolkit and trying to unlock the hinge to take off the stand but failing. I watched videos and everyone in the house tried. Isn’t ...
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1answer
24 views

Dell USB-C Monitor (U2520D) connection to an iMac (Retina 5K, 27-inch, 2017)

There are many options and cable types that I am mighty confused about the best way to connect the Dell as a second monitor to my iMac. I would like the Dell to wake up when the iMac wakes up and I ...
2
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0answers
23 views

Slow file transfer from & between iMacs

I have a problem with slow file transfers from & between 2 iMacs which I'm hoping you can help with. iMac27 is a 2009 with 12Gb RAM & a 1Tb HDD running High Sierra 10.13.6 iMac24 is a 2007 ...
2
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1answer
148 views

When trying to install Windows 10 on 2011 iMac keep getting error 0x8007000D windows cannot open the required file D:\sources\install.wim

I am following the guide here How to install Windows 10 into a 2011 iMac without using the Boot Camp Assistant, an optical (DVD) drive or third party tools? and everything appears to work until I ...
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0answers
18 views

Please Run Install OS X El Capitan.app that you downloaded from the App Store [duplicate]

I'm in Recovery OS trying to Reinstall the OS but I can't. What I have to do? I saw that the solution is copying that file in the Applications folder. But I don't know how to do that.
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61 views

I can't reinstall my OS X El Capitan. “Please Run Install OS X El Capitan.app”

I'm in recovery mode, but when I try to reinstall the OS this shows to me. I've entry to the terminal of Recovery OS. And I found that file .app In other forum I found that the solution is move that ...
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1answer
29 views

Any way to force installing Mojave on a Catalina compatible system? [duplicate]

I had an external Mojave boot drive but the drive crashed and both Disk Utility's Restore and disk image mounter say the volume image I made a week ago is bad and can't be used despite having verified ...
1
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1answer
34 views

Still possible to override iSight webcam LED for iMac's and Macbook Pro's 2019 & 2020 & on?

Although years later from the discovered exploitable vulnerability with iSight's LED, I am wondering if the issue has been fixed on 2019 and 2020 iMacs and Macbook Pros. Can the iSight LED still be ...

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