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

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1answer
310 views

imac wi-fi problems

I'm having a serious problem with WiFi on my iMac 21.5 inch running OS X Lion, up to date. It keeps disconnecting and when I reconnect it, it disconnects again, sometimes it stays on for about an hour ...
1
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0answers
926 views

iMac - 2nd display not working using thunderbolt - HDMI

I recently bought an LG monitor to use as a 2nd display but my iMac (mid 2011, running Mac OS X Lion) doesn't detect it. It's connected using a Thunderbolt-to-HDMI-cable (which I bought from The ...
1
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2answers
1k views

Sudden drop in gaming performance (FPS) on a mid-2010 iMac

About two weeks ago, I had a sudden drop in gaming performance on my 27" iMac with ATI Radeon HD 5750 graphics. While before I could play games without any problems at high graphical settings, ...
2
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1answer
3k views

How can I stop iPhoto from uploading my videos to Facebook automatically?

When I visit my Facebook page I see several random videos that I didn't upload. iPhoto has done this several times to me- scared of what it will post with my knowledge! I try to close it and sometimes ...
3
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2answers
4k views

Upgrade processor iMac (mid 2010 specifically)

I have a mac from mid 2010. I want to know if I can upgrade the processor from the current 3.6 Ghz dual core i3 processor to a quad core i5 or i7. There seems to be very little information on the ...
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2answers
3k views

iMac OS X 10.6.8, didn't come with any disks…how do I create an install disk [closed]

I want to do a dual boot with Windows 7 (the eventual goal being Windows 8 but to upgrade I think I need to have a version of Windows on my Mac already). I meet all of the system requirements and I ...
2
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2answers
1k views

Wifi speed: Desktop/laptop > iPad > iPhone?

I've been stationed in Japan for the next three years, and they've got some ludicrous speeds on their fiber Internet over here. That being said, speed tests (using the SpeedTest.net app) are ...
0
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1answer
6k views

How to restore a late 2009 iMac after disk replacement

My late-2009 iMac will get a new hard drive this week (thanks to Apple's replacement offer. Backup is on Time Machine so I'm not worried about data loss right now. The system I get back from Apple ...
1
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1answer
4k views

How can I reset my iMac G4 to factory settings without the startup disk?

I currently own an iMac G4 that I bought from someone online. But now that I try to update it, it won't let me. The Safari doesn't work and I really just want to clean it up and really start from ...
1
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1answer
2k views

Can I use my Mac's Bluetooth as a Personal Network?

I'm writing this question on my iMac. It's connected to the internet via WiFi as my modem/router is in another room. My iMac has bluetooth running for my magic mouse and apple keyboard. I've also got ...
1
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1answer
460 views

iMac consistently losing all bluetooth connectivity

I have a Late 2011 27" iMac that once a day loses all bluetooth connectivity. (Very rarely it will drop just the keyboard or just the mouse, but 99% of the time, it's everything) This is a huge ...
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7answers
23k views

How can I keep my fan from staying at full speed after replacing the hard drive?

I replaced a hard drive in a 2011 iMac (Core i7), though it was a standard hard drive and didn't have a location for the S.M.A.R.T. cord. (Or at least I think that's what it was.) Since then, the ...
3
votes
1answer
1k views

Spotlight re-index every time I restart/boot iMac

I have an iMac Late 2006 with Lion installed. I don't know since when, but since 3-4 weeks ago I am having this problem. The point is, every time I restart my iMac or boot it, Spotlight starts to ...
1
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1answer
6k views

How to reset iMac to factory defaults?

I want to sell my iMac (2011) and I want to reset the system and remove all my data. I tried the Command-R method. It wants me to enter my Apple ID and password but I don't want to do this! I want to ...
2
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0answers
236 views

iMac OS 10.8 sleeps even when set to never sleep

This is new behavior within the last month. I have the iMac set to never sleep so that I can access it via Logmein remotely. But the last several weeks the machine goes completely to sleep. Any ...
2
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3answers
31k 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 ...
1
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1answer
103 views

App Store, iMacs and Macbook pros

I made the mistake of using my personal app store account when setting up my school's computers. Of course, there didn't seem to be a choice... now that I've done that, how do I permit the users of ...
2
votes
1answer
386 views

Compiling LaTeX in Apple products: is something like pdflatex around?

My Apple friends says that they cannot compile LaTeX. I don't have a Mac at hand to test what the problem is. How can I get something like pdflatex to get LaTeX compiled on a Mac such as a MacBook ...
3
votes
2answers
6k views

iMac display — can't change screen brightness on bootcamp with Windows 7

I can't change iMac (2011) display brightness on bootcamp with Windows 7. When I press F1 it shows icon and even fill the bar, but nothing happen to display. What have I tried: Reinstalling support ...
3
votes
2answers
4k views

Boot from different drive without using Alt/Option

My 2011 27 inch iMac will not boot, it plays the startup sound and then freezes on a white screen. I am fairly confident I could fix it myself if I could get it to boot from a USB drive or external ...
2
votes
1answer
2k views

Can a PC with Thunderbolt use 2011 iMac in target display mode?

I just purchased Lenovo T430s laptop with Thunderbolt and I'm wondering if I should be able to use my 27" 2011 iMac with Thunderbolt as an external display using target display mode. So far, no luck. ...
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3answers
17k views

App Store “An Unknown Error Has Occurred”, Apple Support fix was only temporary. How fix permanently?

When opening an application installed from the App Store (TextWrangler) I am prompted to sign in. After entering the correct Apple ID and password I get an error, An unknown error has occurred. This ...
5
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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 ...
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0answers
137 views

iMac boots with one RAM, but not two

I've got a curious little problem going on over here. I've got an old late 2006 iMac (the white one). Was sportin' 1gb of ram, so I went and bought some more (4gb). Actually I bought two of those, and ...
3
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1answer
773 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
468 views

iMac display wakes up even when no one is using it

I have my iMac set to set the display to sleep after 15 minutes. I notice at night that, even when no one is touching the computer, the display will come on for a while and then to go back to sleep ...
0
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1answer
249 views

Stop iMac from sleeping when used as an external display

I have an iMac which I sometimes use as an external display for my Macbook Air. Normally, I want the iMac to go to sleep after about 30mins except when I have the Air attached. Is there any app (or ...
4
votes
2answers
362 views

Two External Drives on iMac

Can I use the Keyboard USB Port for a second External Drive on my iMac? I've seen warnings to not use the keyboard port for external drives, but no explanation. How do I use 2 external drives, if not ...
0
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1answer
726 views

Stream movie on Apple TV 3 from iTunes on iMac G4

Is it possible to stream movies via old version of iTunes (iMac G4) on Apple TV 3 or is the latest version needed?
2
votes
3answers
309 views

Screen-saver resizes my windows

I have an iMac(27" from 2010) and while running Lion I tried to HiDPI modes that gives me 1280x720 and larger text. I did change back to 2560x1440 long before upgrading my system to Mountain Lion. If ...
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0answers
258 views

iMac 2011 spinning beach ball after login

the following is the HW profile of my iMac: Hardware Overview: Model Name: iMac Model Identifier: iMac12,1 Processor Name: Intel Core i5 Processor Speed: 2.5 GHz ...
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0answers
510 views

iMac doesn't recognize my MacBook Pro when connecting via mini DisplayPort

I use my iMac as an external monitor for my MacBook Pro via mini DisplayPort. But, sometimes, it fails. The iMac went black for some seconds when I plugged the cable in but it went back into the ...
2
votes
3answers
782 views

iMac reachability over sleep

I've got an issue with my iMac... Let me explain the configuration: The router is connected to the internet, the WiFi is turned off. Time Capsule is connected to the router with an ethernet cable, ...
1
vote
1answer
539 views

Can I hook up a MyBook Thunderbolt Duo external drive to a late 2009 Mac with mini DisplayPort?

Can I hook up a MyBook Thunderbolt Duo external drive (only has Thunderbolt ports) with a Thunderbolt cable to a late 2009 iMac (with mini DisplayPort) and use it for storage (at a slower speed) until ...
1
vote
3answers
2k views

Ordering a 21.5" iMac with a different graphics card

I've searched through the site but it seems nobody asked this. Basically, my question is: When ordering a new 21.5" iMac, is it possible to choose a different graphics card other than the listed ...
2
votes
3answers
12k views

My iMac refuses to log me in

I'm not an idiot, caps lock is off, num lock is off, I am using the correct password. When I type in an incorrect password, the screen shakes as it's supposed to. When I type in the correct ...
2
votes
0answers
307 views

sleep, screensaver and Filevault

I am mystified: first, I have an iMac and a mbp, both running mountain lion. In System Preferences > Security > General > Require Password after sleep or screensaver, I can adjust the time to 4 hours ...
10
votes
4answers
6k views

Can you turn off or disable the display on an iMac?

I'd like to turn off my iMac display while connected to it via a remote desktop session. I'm using TeamViewer or LogMeIn, and unfortunately the screen stays on during those sessions when it really ...
3
votes
4answers
3k views

Internet connection no longer reliable after installing Mountain Lion

I installed Mountain Lion yesterday and find that when my 2 year old iMac comes back from sleep it finds the router and connection but fails to allow internet connection. In other words it indicates ...
0
votes
2answers
10k views

Making Apple USB SuperDrive work with other Apple Hardware

At the time it shipped, the System Requirements for the Apple USB SuperDrive said it worked with precisely three models of computer: MacBook Pro with Retina display MacBook Air computer Mac mini ...
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
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0answers
306 views

iMac has white screen, runs fine otherwise

Working in Xcode as usual, suddenly the entire display goes white. I have a second monitor hooked up for non-Xcode things, so I managed to fish the System Preferences window out of the iMac display ...
0
votes
2answers
88 views

Can you give me buying advice of a 6970 card in a 27" iMac for just Photoshop, Lightroom, no video or games?

Thinking of buying the 27" iMac---I've given up waiting for the new desktop. Only to be used for my images, files up to 1GB, no gaming, no video production. Will the 6970 card be worth the extra ...
0
votes
1answer
1k views

GPU temperature is above 70 C, and CPU fan is above 2400 rpm

I've had my iMac for two years now. I play a lot of games and watch a lot of HD videos. In the past week, the computer has gotten a lot hotter than usual and it stutters a lot, and I feel like the two ...
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6answers
27k views

iMac wiped clean, no install disc

I just bought two iMac's at an auction, they were both wiped clean before the sale. The problem is when I turn them on I'm getting a screen with an icon of a folder with a question mark. So the guy ...
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1answer
2k views

Early 2009 24" iMac Graphics / Display problem [VIDEO]

So here is the situation... I came home from work one day and my iMac would not turn on, no chime, no fans, nothing. It had stormed earlier that day so I was wondering if something tragic happened. ...
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votes
2answers
181 views

Where can i get tiger os 10.4.x?

I have an old iMac G5 and want to install the original OS on it but can't seem to find the original disks. Is there a good source to legitimately obtain copies of older Apple operating systems?
2
votes
1answer
641 views

Reduce memory usage in OS X Lion

I have a summer-2006 iMac with 2Gb memory. I use it mainly for "mainstream usage" : browse the web (including web-based applications such as Gmail) access a remote server (through screen sharing / ...
1
vote
1answer
2k views

What are the differences between an iMac Display and a Thunderbolt 27" display

Context: I purchased a Mac mini 2011 (lower end) last year to move from PC to a Mac. I went for a Mac mini because I wanted to reuse my old PC's peripherals. Later however, I developed a liking for ...
2
votes
3answers
6k views

Can a Thunderbolt iMac use Target Display Mode on a Thunderbolt MacBook running Windows?

If I have: 2011 27" iMac (running OS X) 2012 15" MacBook Pro (running Windows 7 via Boot Camp) and connect the MacBook to the iMac via a Thunderbolt cable, can the iMac use Target Display Mode to ...