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

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19
votes
7answers
85k views

Put the display to sleep without putting the whole computer to sleep?

I like to use vnc on my ipad on my bed. I want the mac to go to a black screen so I can fall asleep while using the ipad, and not have to get up to shut down the mac afterwards. Is there anyway to ...
17
votes
5answers
17k views

ntpd not updating time

I had updated my old iMac to Mavericks just fine. I then bought a new (certified refurbished, actually) iMac and migrated everything over from a Time Machine backup. The new iMac's clock loses ...
5
votes
1answer
5k views

How can I check to see if my Mac is running in dual channel mode?

I've just upgraded my iMac's memory with a new 2x8GB kit: Although I know this "should" be dual channel (as both banks have the same amount of RAM), I'd like to know for sure. How can I check?
7
votes
3answers
20k views

Install OS X in VirtualBox on iMac?

Is it possible to install OS X 10.6 Snow Leopard in VirtualBox on an iMac (i3) running OS X 10.6.8? I have the 10.6 install CD, DMG, and ISO, but can't get any of them to boot from VirtualBox.
7
votes
2answers
11k views

iTunes on iMac won't start up after upgrade (error -10699)

Yesterday I updated iTunes in my iMac running OS X 10.10.3. According to the information in App Store, the new iTunes version is 12.1.2. Since then iTunes won't start up. If I click on it, there is ...
19
votes
7answers
47k views

Can I share my iMac's internet access to iPhone via USB?

I have an iMac, connected to the Internet via Ethernet, and an iPhone 4. I would like to share the iMac's Internet connection to my iPhone via the USB Cable (because my wife dreams of a wifi-less ...
6
votes
6answers
34k views

iMac with 8GB RAM — memory always almost full

I have a 27'' iMac (Late 2012, OS X 10.9.2) with 8GB RAM. The usage of memory is always above 7GB, even though I don't think I am running that much stuff. This leads to the occasional hanging of a ...
3
votes
1answer
1k views

Can I connect my MacBook Pro DisplayPort to a Thunderbolt iMac to use as a display?

I have a MacBook Pro with Mini DisplayPort and I want to use target display mode to use a Thunderbolt iMac as an external display. If this works, would I need a Mini DisplayPort cable or a Thunderbolt ...
16
votes
9answers
4k views

Recent items menus have stopped working on my iMac

Recently I noticed that on my iMac, running El Capitan, the Open Recent menu has stopped getting updated, both in the Apple menus, and for apps, and both for the Open Recent menu item, and the list ...
14
votes
3answers
117k views

How could i use an iMac as secondary monitor for a Windows 7 laptop

Recently (less than one year ago) i bought an iMac 21,5". Now i would like to use it as secondary monitor for my laptop. (My laptop runs Windows 7). Is it possible? (I found conflicting opinions on ...
13
votes
5answers
20k views

How do I stop my computer name from automatically, and incorrectly, changing?

Ever since I upgraded my 2009 iMac to Mavericks, I often get a message stating 'The name of your computer "Foo" is already in use on this network. The name has been changed to "Foo (2)".'. The number ...
13
votes
2answers
18k views

Can I get sound out of both iMac and attached Thunderbolt Display?

I have a dual monitor setup (iMac + Thunderbolt Display). The System Preferences > Sound > Output setup only allows me to choose between one or the other monitor. This causes the sound to come only ...
3
votes
3answers
4k views

Early 2009 iMac upgrading to Bluetooth 4.0

I have been searching on Amazon and most of the USB dongle type Bluetooth 4.0 adapters specifically say not compatible with OSX. My question is; has anyone seen a Bluetooth 4.0 option to upgrade my ...
1
vote
2answers
2k views

iMac crashes after upgrade to OS X Mavericks

We have an iMac and after upgrading to OS X Mavericks. We have been been experiencing random shutdowns - below is the error report. I would be really grateful if someone could point me in the right ...
5
votes
2answers
2k views

most Mac-compatible linux distribution

I want to install Ubuntu on my iMac. But I don't want to use Unity. I want to use Gnome 3. I can install it over Ubuntu (as I do on my laptop) but I know that Fedora and OpenSuse use Gnome 3 natively. ...
4
votes
1answer
13k views

Can i remove OS X completely and install Windows?

Can I completely remove Mac OS X from my system and install Windows 7 or 8 on it? I do not want to use Bootcamp or create VM's. Is there any way at all? The problem here is that i want to ditch OSX ...
1
vote
1answer
965 views

How to use an old iMac as an external display for a MacBook via wifi?

There have been several questions how to connect a (new) MacBook to an (old) iMac so the latter will work as a second, bigger display for the former, but all were assuming a hardware connection, i.e. ...
0
votes
3answers
5k views

iMac not logging probably due to keychains problem

iMac OS X Lion. I have 2 accounts with password. On the first account, I was messing up the keychains thing. If I recall correctly, I think I deleted all private keys I had and added exported keys ...
7
votes
4answers
38k views

Is it ok to mix 2 GB and 4 GB DIMMS in an iMac (mid 2011)?

I've been told it is important to use matching DIMMs when installing memory to take advantage of the 128 bit throughput. I'm looking to buy a new 27" iMac (mid 2011) which has 4 memory slots. If I put ...
3
votes
1answer
112 views

iMac login screen only half displayed

When I booted up my iMac yesterday, I was confused to find my login field had seemingly moved upwards, so that only the bottom half was showing. The lower half of the screen was just black. Is this a ...
3
votes
2answers
953 views

Enable HiDPI on 23" iMac?

I have a 23" iMac running Lion (10.7.3). I've checked that the "Enable HiDPI display modes" checkbox is enabled in "Quartz Debug" (it was checked the first time I opened it), but there are no HiDPI ...
2
votes
2answers
2k views

iMac going in and out of sleep every few seconds

If I put my iMac (2011, i7) to sleep, it'll wake up after 5 seconds, then go back to sleep after a few seconds, and repeat constantly. The only way to stop it is to restart. This seems to be happening ...
2
votes
3answers
2k views

What is the point with iMac + SSD?

The newly released iMac can be built with an optional 256 GB SSD. To complement this, the new iMac's also contains the Intel Z68 chipset: Z68 mproves performance by putting files that are ...
1
vote
2answers
10k views

2012 27″ iMac fan starts running at high speed when shut down and won't stop

My 2012 27″ iMac is working quite well, even the fan doesn't behave strange as along as the computer is running or is in sleep mode. But it becomes strange when I shut down the Mac, because when the ...
1
vote
2answers
387 views

Can an 2009 iMac have an odd total amount of RAM?

I have an iMac 20-inch early 2009 model. There is 2 GB of RAM (2 x 1 GB sticks). Can I upgrade the amount of memory to 3 GB, replacing just one of the two RAM sticks?
1
vote
2answers
4k views

How do I replace the hard drive in my circa 2008 iMac?

My circa 2008 iMac hung up today and wouldn't reboot -- it just hung on boot with the Apple logo and the spinner. I booted the Snow Leopard DVD and ran Disk Utility on the drive. It told me the drive ...
0
votes
2answers
1k views

Two older Macs (G3 / Intel) need their drives erased. No install discs

I have two older Macs in which I want to erase the hard drive. Secure-erase is a plus, but not a show-stopper at this point. I don't have any Mac OS X discs so I can't use disc utility. What I'd ...
0
votes
1answer
628 views

Access and control home office network, iMacs, and XServes

I have a home office network comprised of: 1 Time Capsule 2 27" iMacs with dual cores running Mac OS X 10.6.8 2 XServes each with 2 quad cores running Max OS X Server 10.6.8 I use the ...
0
votes
1answer
641 views

How much RAM can a 2007 iMac hold?

The box says I can add up to 3 GB (for a total of 4GB), but is this restriction hardware based, or because of the operating system? If I upgrade to OS X 10.6 or higher, can I increase the RAM to 8 GB ...
5
votes
1answer
5k views

Using iMac as Mac Pro display

I currently have a iMac (27-inch, Late 2009, 3.06 GHz Intel Core 2 Duo) which I would like to use as display for a new Mac Pro. How do I do that?
4
votes
10answers
7k views

What is wrong with my iMac? (video corruption, unstable)

I have a 24" Early 2009 iMac. During "intensive" use (such as Photoshop, WebGL, etc.), the system starts to become very unstable, resulting in bizarre graphics corruption and other weird behaviour. ...
11
votes
6answers
12k views

Can 'Find My Mac' work while the computer is sleeping?

Is the 'Find My Mac' feature of iCloud supposed to work while the computer is sleeping? I use this feature to check on things every once in a while, as well as show the feature off to other people. ...
6
votes
3answers
378 views

Screen flash disabled but happens anyway

My Mac has started flashing the screen instead of beeping. It's exactly the same effect as you'd get if the Accessibility pref pane's "flash the screen" option was enabled, except that it's not ...
5
votes
4answers
10k views

How to upgrade firmware and reperform a Samsung 840 Evo on a Mac

i got one of these Samsung 840 Evo Basic 500GB on an iMac (used externally in a TB case - standalone, not Fusion). I know there's a firmware update out which is already available for Mac users too ...
4
votes
3answers
2k views

How can I download something with display turned off (Ctrl+Shift+Eject)?

In Lion I could just press Ctrl+Shift+Eject to turn off display on iMac. In Mountain Lion it looks like this shortcut turns off whole computer. It looks like sleeping mode. So my downloads stop when ...
1
vote
2answers
15k views

Usign iMac as a Display for MacBook Pro

I did some research on this and they were saying Press Command+F2 So did I ! But here are the issues I saw with this method: The youtube video that was previously running on iMac continued to run, I ...
9
votes
4answers
42k views

Can I use my Macbook Pro Retina as extra monitor for my iMac through Thunderbolt

I just bought a new late 2013 iMac and a new late 2013 Macbook Pro retina. Also bought an Apple thunderbolt cable. Pressing CMD+F2 (enabling Apples "Target Display Mode") on my iMac lets me use the ...
8
votes
3answers
992 views

Control iMac and LED Cinema Display Brightness Simultaneously

I have a iMac 27'' and a LED Cinema Display 27'' connected to it. And I've noticed that to be able to control brightness I need to open the Display.prefPanel and modify the brightness of the displays ...
7
votes
2answers
4k views

Can my Thunderbolt Macbook Air drive my Mini DisplayPort iMac as an external display?

I've run an iMac as an external display for a Mac laptop before, but am wondering if my new setup can work like that. I have: 2011 Macbook Air with Thunderbolt 2009 iMac with Mini DisplayPort mini ...
6
votes
2answers
31k views

iMac 27" Screen goes black screen

My iMac 27" screen went black on start up after logo, but I could still see my mouse pointer. I've restarted my computer and it is still not helping at all. I'm running Mavericks 10.9.2 with an i5 ...
5
votes
4answers
33k views

What can be done to fix a 2011 iMac that will not boot past the white screen?

I have now tried opening the iMac and removing the cables to the SSD, it still gets stuck on the white screen. I tried again, removing the cables to the HDD as well and the same thing occurs. No idea ...
5
votes
1answer
826 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 ...
5
votes
1answer
2k views

Mixing memory sizes

I'm looking at upgrading the memory in my mid-2011 iMac. Is there any problem with sticking in 2 4GB modules alongside the existing 2GB modules?
5
votes
2answers
11k 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 ...
4
votes
3answers
646 views

My colleague's iMac connects to my MacBook Pro via Bluetooth without my consent & messes things up!

So, I'd be using my Magic TrackPad or listening to music via Bluetooth headphones and suddenly the mouse cursor would start jumping around or the Bluetooth audio would start breaking up, and that's ...
4
votes
1answer
141 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 ...
3
votes
2answers
3k views

Entering superscript text (exponents) in TextEdit?

I am writing math problems on my iMac and I am using TextEdit. I need to add exponents to one of my problems. How can I do that?
2
votes
1answer
828 views

Kernel: Previous shutdown cause: -62 Help Needed!

I have a late 2013 27" iMac running Yosemite, and it randomly shuts off every now and then. I tried everything Reset SMC. Diagnostics, reformat Macintosh HD but still occurs and running out of ...
2
votes
1answer
414 views

Disable second monitor

The problem I have a 2008 iMac running OS X 10.7 with its mini-DVI output port connected to an second monitor via a DVI-D adapter. It's nice having a second monitor, but it's sometimes superfluous ...
2
votes
2answers
10k views

Can I use my early 2009 iMac as an external screen?

I have an early 2009 iMac (24" version). It has a mini display port in the back. Is it possible to use it as an external screen? If so, how do I do it? And can I attach all kinds of devices, e.g. a ...