2012 imac led backlight up and down?

I notice the backlighting on my brand new 2012 27" iMac goes up and down now and then, even when the screen is not changing...
Why? Is this a flaw? Can it be controlled?

New iMacs control automatically the display brightness. If you want, you can turn it off to set up the brightness manually. Go to System Preferences > Displays, and unmark "Automatically adjust brightness"

Similar Messages

New iMac late 2012 judders when scrolling up and down

new iMac 27" i7 quad core late 2012 the web pages judders when scrolling up and down

Hi,
The judder was up and down when scrolling, I think that I have resolved the issue regarding the juddering, I looked at what software I had recently installed, first I removed the software that I think was causing the juddering problem! it was a bit better but did not remove it completely, AutoCAD 2013 was the software that seems to be the culprit which must have messed up the graphics diver someway.
In the end I erased the hard drive and set the OS back to it's factory settings, which has resolved this juddering issue.
NB: when restoring the OS I lost ilife.

LED Backlight flicker within specification!

Hi All,
I recently purchased a 2.2 GHz LED backlight Glossy MBP. After using the unit for a few days I noticed repeated eye strain and headaches.
I calibrated the LCD to no avail and can honestly say that I have never had such an issue with my glossy CCFL backlight MB or new 24" iMac.
After almost a week of use, I stumbled upon a background that exposed a clear flickering on the LCD. (Here is a copy: http://www.csse.uwa.edu.au/~lucas/background.html)
I called Apple and was told to take it in to an authorized repair center (Next Byte, Nedlands WA). Upon showing the unit to the technician, he stated that the flicker was evident and that he would let Apple know.
I called Apple a little later but they had still not heard back from the repair center, even though I had been called by Next Byte and told that Apple had been filled in. However to my surprise, the current technician proceeded to inform me that the flicker on my unit was standard across all LED backlight units and that it was "within specification"!
I was and still am very disappointed that a flicker on any LCD is acceptable and fail to see how such a disappointing "feature" can be palmed off as tolerable.
I am waiting to hear from Apple on Monday but so far I am so far disgusted with my experience. A 2,700 AUD machine should not exhibit an LCD flicker, least of all one that causes its user considerable discomfort.
Rami

Make sure you have installed the most recently MacBook Pro updater (version 1.1 I believe) and upon restarting, reset PRAM…
http://docs.info.apple.com/article.html?artnum=2238

2012 iMac vs. 2008 iMac - how much faster overall?

My 2008 24" iMac (Intel Core 2 Duo, 2.8 GHz, 4GB RAM) still serves me well -- Final Cut Pro, internet, music and everything else.
If I take the plunge and upgrade to the new 27" iMac for $2,199 (3.4GHz Quad-core Intel Core i7, Turbo Boost up to 3.9GHz) -- how much speed increase will I notice across the board, with the uses I mentioned above?

I just made the move from a 2007 iMac (with a 2nd generation Seagate hybrid drive) to a 2012 iMac with Fusion drive and the speed difference is quite significant. Obviously part of that is the difference between 6GB RAM and 16GB RAM but Photoshop filters, for example, which take...a...moment...or...two on the 2007 model are done after clicking okay. Boom.
Note: at the store I noticed a significant difference between the 5400 RPM model in boot, program launch, and document handling and the fusion drive. No question about it, the fusion drive is worth the extra money.

I have a late 2012 iMac running osx 10.8.5. I keep losing access to my internal hard drive. I can reboot and regain access and it will last for a few minutes or hours. Disk utility does not seems to help.

I have a late 2012 iMac with an I5 precessor running OSX 10.8.5 and a 1tb internal hard drive. I keep losing access to the internal hard drive/startup disk.
I can reboot and everything operates as normal for a few minutes or hours but then I lose all access again to anything on the hard drive. The computer is still up and running but no files can be accessed and certain websites cannot be acessed even though internet access appears to be normal. Disk utility can only find permission errors related to iTunes which can be repaired only to come back at the next scan (I would not think permission errors would have anything to do with the hard drive crashing). It does not seem to matter what program I am using at the time access is lost and it can lose access sometimes right after reboot when no program is running.

You will need to boot into the Recovery Volume (command - R on a restart or hold down the option/alt key during restart and select it) to run Disk Utility/Disk Repair.

How can I find what apple ID I used to register my iMac when I first booted up? I am being told that by using this ID I will be able to go on to the App store and down load iPhoto at no cost. Is this true? My iMac does not have iPhoto resident on it now

How can I find what apple ID I used to register my iMac when I first booted up? I am being told that by using this ID I will be able to go on to the App store and down load iPhoto at no cost. Is this true? My iMac does not have iPhoto resident on it now and I only purchased my new iMac in December 2012
Thanks....

Launch Keychain Access and click on Login in the left hand pane and then on Passwords. Next do search for Apple in the search field at the top and click on Apple ID Authenicication in the list that comes up. That will give you the ID no. and password.
OT

2012 iMac 27" fails to boot AND wake from sleep

Hi all,
My 2012 iMac has recently started giving my trouble when booting and waking from sleep.
When booting - A normal power up results in the apple logo screen being stuck, then I have to hold down the power button for a few seconds until power off, then i power it back up and the computer boots up normally. NOTE: only at the second time does the computer succeed in getting past the apple logo screen to the sign in screen.
Waking from Sleep - When ever the mac goes to sleep he doesn’t seem to be able to wake up. Usually stuck on a black screen with just the spinning wheel shown. At times i waited more then an hour to see if he can get passed the black screen but in vain.
Other then that the mac works fine.
Both issues started roughly two weeks ago and roughly at the same time.
My mac is mostly used for work, I'm familiar with computers so I am trying to be extra careful with installing weird applications but you could never know..
SPEC:
Late 2012 iMac 27'' - 3.4 Ghz i7.
16GB RAM.
1TB Fusion drive.
2GB NVIDIA GTX 680MX
Wired keyboard and a Magic mouse.
Mountain Lion 10.8.5 (Updated and backed up on a regular basis)
Things I've tried:
Boot to Recovery and Repair Disk/Permissions.
Safe Boot.
SMC reset.
PRAM reset.
* The first two produced a single case of a normal start up, but after a shut down the problem remains.
Any ideas/thoughts/help would be much appriciated,
Thanks in advance,
Idan.

Bump.

Why does my iMac (on occasion) not shut down, warning message comes on saying i have to switch off by pressing and holding the power button then restart,

Why does my iMac (on occasion) not shut down, warning message comes on saying i have to switch off by pressing and holding the power button then restart, something to do with a Panic report?
Thanks
Brian

Hi mende1,
you asked me to post the Kernal panic report then next time it appears, sorry for the delay but it was fine until yesterday when it happened again so here it is, hope you can make sense of this, thank you for your help.
Regards
Brian
Interval Since Last Panic Report: 97797 sec
Panics Since Last Report:          1
Anonymous UUID:                    17D8F909-09A9-4BC6-A153-A12F75529506
Sun Jan 27 09:32:57 2013
panic(cpu 0 caller 0xffffff80002c4794): Kernel trap at 0xffffff80002b4b31, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x00000000800a9118, CR3: 0x0000000000100000, CR4: 0x0000000000000660
RAX: 0xffffff80008c2028, RBX: 0x00000000800a9100, RCX: 0xffffff800ae5bf00, RDX: 0x0000000000000080
RSP: 0xffffff8078713e68, RBP: 0xffffff8078713eb0, RSI: 0x000000005aefd876, RDI: 0x00000000800a9118
R8: 0x0000000000000010, R9: 0x0000000000000000, R10: 0xfffffe802662d000, R11: 0x00080000000263f3
R12: 0xffffff8078713f60, R13: 0xffffff8078713f78, R14: 0x0000000000000000, R15: 0x00000000800a9118
RFL: 0x0000000000010002, RIP: 0xffffff80002b4b31, CS: 0x0000000000000008, SS: 0x0000000000000010
CR2: 0x00000000800a9118, Error code: 0x0000000000000000, Faulting CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff8078713b10 : 0xffffff8000220792
0xffffff8078713b90 : 0xffffff80002c4794
0xffffff8078713d40 : 0xffffff80002da55d
0xffffff8078713d60 : 0xffffff80002b4b31
0xffffff8078713eb0 : 0xffffff80002352a5
0xffffff8078713ec0 : 0xffffff800036489d
0xffffff8078713ee0 : 0xffffff8000345031
0xffffff8078713fb0 : 0xffffff8000820057
BSD process name corresponding to current thread: kernel_task
Mac OS version:
11G63
Kernel version:
Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
Kernel UUID: FF3BB088-60A4-349C-92EA-CA649C698CE5
System model name: iMac10,1 (Mac-F2268CC8)
System uptime in nanoseconds: 1750251829240
last loaded kext at 51464252613: com.apple.filesystems.msdosfs          1.7.1 (addr 0xffffff7f815c7000, size 57344)
last unloaded kext at 215848970782: com.apple.driver.AppleFileSystemDriver          13 (addr 0xffffff7f825c2000, size 12288)
loaded kexts:
com.vmware.kext.vmnet          3.0.0
com.vmware.kext.vmioplug          3.0.0
com.vmware.kext.vmci          3.0.0
com.vmware.kext.vmx86          3.0.0
com.apple.filesystems.msdosfs          1.7.1
com.apple.driver.AppleBluetoothMultitouch          70.12
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.filesystems.autofs          3.0
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.iokit.IOBluetoothSerialManager          4.0.8f17
com.apple.driver.AudioAUUC          1.59
com.apple.driver.AppleUpstreamUserClient          3.5.9
com.apple.GeForce          7.3.2
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.AppleHDA          2.2.5a5
com.apple.driver.AppleMikeyDriver          2.2.5a5
com.apple.driver.AGPM          100.12.75
com.apple.driver.AppleBacklight          170.2.2
com.apple.driver.AppleMCCSControl          1.0.33
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AudioIPCDriver          1.2.3
com.apple.driver.ApplePolicyControl          3.1.33
com.apple.driver.ACPI_SMC_PlatformPlugin          5.0.0d8
com.apple.driver.BroadcomUSBBluetoothHCIController          4.0.8f17
com.apple.driver.AppleIRController          312
com.apple.driver.AppleUSBCardReader          3.0.6
com.apple.iokit.SCSITaskUserClient          3.2.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          33
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCISerialATAPI          2.0.3
com.apple.iokit.IOAHCIBlockStorage          2.1.0
com.apple.driver.AppleAHCIPort          2.3.1
com.apple.nvenet          2.0.17
com.apple.driver.AppleUSBHub          5.1.0
com.apple.driver.AirPort.Atheros40          505.67.1
com.apple.driver.AppleUSBEHCI          5.1.0
com.apple.driver.AppleUSBOHCI          5.1.0
com.apple.driver.AppleEFINVRAM          1.6.1
com.apple.driver.AppleFWOHCI          4.9.0
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.7
com.apple.driver.AppleACPIButtons          1.5
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.5
com.apple.driver.AppleAPIC          1.6
com.apple.driver.AppleIntelCPUPowerManagementClient          195.0.0
com.apple.nke.applicationfirewall          3.2.30
com.apple.security.quarantine          1.4
com.apple.security.TMSafetyNet          8
com.apple.driver.AppleIntelCPUPowerManagement          195.0.0
com.apple.driver.AppleBluetoothHIDKeyboard          160.7
com.apple.driver.AppleHIDKeyboard          160.7
com.apple.driver.AppleMultitouchDriver          231.4
com.apple.driver.IOBluetoothHIDDriver          4.0.8f17
com.apple.kext.triggers          1.0
com.apple.iokit.IOSerialFamily          10.0.5
com.apple.nvidia.nv50hal          7.3.2
com.apple.NVDAResman          7.3.2
com.apple.driver.DspFuncLib          2.2.5a5
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.driver.AppleHDAController          2.2.5a5
com.apple.iokit.IOHDAFamily          2.2.5a5
com.apple.iokit.IOSurface          80.0.2
com.apple.iokit.IOAudioFamily          1.8.6fc18
com.apple.kext.OSvKernDSPLib          1.3
com.apple.driver.AppleGraphicsControl          3.1.33
com.apple.iokit.IONDRVSupport          2.3.4
com.apple.iokit.IOGraphicsFamily          2.3.4
com.apple.driver.AppleSMC          3.1.3d10
com.apple.driver.IOPlatformPluginLegacy          5.0.0d8
com.apple.driver.IOPlatformPluginFamily          5.1.1d6
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.driver.AppleUSBBluetoothHCIController          4.0.8f17
com.apple.iokit.IOBluetoothFamily          4.0.8f17
com.apple.iokit.IOUSBHIDDriver          5.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice          3.2.1
com.apple.iokit.IOUSBMassStorageClass          3.0.3
com.apple.driver.AppleUSBMergeNub          5.1.0
com.apple.driver.AppleUSBComposite          5.0.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.2.1
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.iokit.IOSCSIArchitectureModelFamily          3.2.1
com.apple.iokit.IOAHCIFamily          2.0.8
com.apple.iokit.IOUSBUserClient          5.0.0
com.apple.iokit.IO80211Family          420.3
com.apple.iokit.IONetworkingFamily          2.1
com.apple.iokit.IOUSBFamily          5.1.0
com.apple.driver.NVSMU          2.2.9
com.apple.driver.AppleEFIRuntime          1.6.1
com.apple.iokit.IOFireWireFamily          4.4.8
com.apple.iokit.IOHIDFamily          1.7.1
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          177.8
com.apple.kext.AppleMatch          1.0.0d1
com.apple.driver.DiskImages          331.7
com.apple.iokit.IOStorageFamily          1.7.2
com.apple.driver.AppleKeyStore          28.18
com.apple.driver.AppleACPIPlatform          1.5
com.apple.iokit.IOPCIFamily          2.7
com.apple.iokit.IOACPIFamily          1.4
Model: iMac10,1, BootROM IM101.00CC.B00, 2 processors, Intel Core 2 Duo, 3.06 GHz, 4 GB, SMC 1.52f9
Graphics: NVIDIA GeForce 9400, NVIDIA GeForce 9400, PCI, 256 MB
Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
Memory Module: BANK 1/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 4.0.67.5-P2P
Bluetooth: Version 4.0.8f17, 2 service, 18 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: ST3500418ASQ, 500.11 GB
Serial ATA Device: OPTIARC DVD RW AD-5680H
USB Device: Ext HDD 1021, 0x1058 (Western Digital Technologies, Inc.), 0x1021, 0x24300000 / 3
USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0x24400000 / 2
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0x26500000 / 3
USB Device: hub_device, 0x0409 (NEC Corporation), 0x0059, 0x26400000 / 2
USB Device: Tablet, 0x172f, 0x0037, 0x26410000 / 6
USB Device: Mass Storage Device, 0x058f (Alcor Micro, Corp.), 0x6362, 0x26430000 / 5
USB Device: USB 2.0 Hub [MTT], 0x1a40 (TERMINUS TECHNOLOGY INC.), 0x0101, 0x26440000 / 4
USB Device: JumpDrive, 0x05dc (Lexar Media, Inc.), 0xa205, 0x26441000 / 7
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x06110000 / 4

[Guide] Install and run Windows 7/8 from an external drive without using bootcamp (works for late 2012 iMacs with 3TB drive)

This is a copy of a post from my blog, you can also Read it on my blog...
Introduction
After I received my new iMac with a 3 TB Fusion Drive, I was disappointed when I realized that Bootcamp was not running on this model and prevented me from installing Windows on it. I wanted to take advantage of the powerful iMac hardware to play games but I couldn't.
There are a few ways of working around this limitation, but I found most of them quite complex and most of the time they required formatting the internal hard drive or repartitioning it and go for a brand new installation of Mac OS X. I was not comfortable with that.
But there is another way, and that is to install Windows on an external hard drive, using either USB or Thunderbolt. Personally I used a Lacie Rugged 1 TB drive that has both USB3 and Thunderbolt connectors. Both work very well.
This guide may interest you if:
You have an internal hard drive of more than 2TB and you can't run bootcamp at all (like late 2012 iMacs with a 3TB drive)
You have limited space or you don't want to dedicate disk space on your internal hard disk drive to a Windows installation
What this guide will make you do:
It will make you erase all your data from your external USB3/Thunderbolt hard drive
It will make you install Windows on your external USB3/Thunderbolt hard drive
It will make you install bootcamp drivers
What this will not make you do:
It will not make you modify anything on your internal Mac hard drive
It will not make you use or install the bootcamp assistant
It will not activate the Preference Pane for the default boot drive. You have to boot by pressing the ALT key to manually select your boot drive each tome you want to boot Windows.
What you'll need
An external hard drive with a USB3 and/or Thunderbolt connector. This drive will be formatted so ensure you saved your files before going further. You can use either an SSD drive or a classic hard drive.
A Windows 7 or 8 install DVD or ISO (check whether to install 32 or 64 bits versions based on your Bootcamp drivers) and the corresponding Windows serial number.
One of the following:
Mac OS X with a Windows 7 or 8 Virtual Machine (use VMWare Fusion or Parallels Desktop for example. Note: VMWare Fusion seems to have some issues with Thunderbolt and USB3. Plug your drive to a USB2 enclosure or hub to work around this -it worked for me-, or use another VM software) → Read the important note below
A PC running Windows 7 or 8 → Read the important note below
Windows AIK (free) running on your Virtual Machine or on your PC, or just the imagex.exe file (the rest of the Windows AIK package is not needed)
Download imagex.exe
Download Windows AIK (this download and installation is not required if you have already downloaded imagex.exe)
Bootcamp drivers for your Mac. You can get these either by running bootcamp from your Mac (Applications > Utilities > Bootcamp) or, if like me you have a 3TB drive and can't run bootcamp at all, use the direct download links here.
A USB stick to store your bootcamp drivers
IMPORTANT: If your Mac has a 64 bits processor, your Windows Virtual Machine on OSX, your Windows installation on your PC and your Windows DVD/ISO must also be in 64 bits!
Step by Step guide
Step 1: Get the install.wim file
If you have a Windows ISO file:
Mount the ISO
If you're on OS X: double click on the ISO file
If you're on on Windows 7: Use a software like Virtual Clone Drive (free)
If you're on Windows 8: double click on the ISO file
Open the mounted drive, then go to the "sources" folder and locate the "install.wim" file. Save this file to C:\wim\ on your Windows installation or virtual machine.
If you have a Windows DVD: open the "sources" folder on the DVD and locate the "install.wim" file. Save this file to C:\wim\ on your Windows installation or virtual machine.
IMPORTANT: If instead of a "install.wim" file, you have "install.esd", you can not continue this step by step guide. And an ESD file can not be converted into a WIM file. So you must get a version of the Windows installation DVD/ISO that has an install.wim file.
Step 2: Clean, partition and format your external hard drive
On your Windows installation or virtual machine, plug in your external hard drive (can be plugged using USB2, USB3 or Thunderbolt at this stage)
Open the command prompt in administrator mode (cmd.exe). To run it in administrator mode, right click on cmd.exe > Run as admin.
Type the following and hit enter to open the disk partitioner utility:
diskpartType the following and hit enter to list your drives:
list disk
This will display a list of disks mounted on your computer or virtual machine. Make sure your drive is listed here before you continue.Identify the disk ID of your external hard drive. Replace # by your real external disk ID in the command below:
select disk #Clean all partitions by typing the following (warning: this will erase all data from your external drive!):
clean
Create the boot parition by typing the following followed by the enter key:
create partition primary size=350
This will create a 350MB partition on your external driveFormat the partition in FAT32 by typing the following:
format fs=fat32 quick
Set this partition to active by typing:
active
Assign a letter to mount this partition. We will use letter B in our example. If B is already used on your PC, replace B by any other available letter:
assign letter=b
Windows will detect a new drive and probably display a pop-up. Ignore that.Create the Windows installation partition using all the remaining space available on the external drive by typing the following:
create partition primary
Format the new partition in NTFS:
format fs=ntfs quick
Assign a letter to mount this partition. We will use letter O in our example. If O is already used on your PC, replace O by any other available letter:
assign letter=o
Windows will detect a new drive and probably display a pop-up. Ignore that.Exit the disk partitioner utility by typing:
exit
Step 3: Deploy the Windows installation image
Still using the command prompt in admin mode (you didn't close it, did you? ), locate the imagex.exe file mentioned in the "What you'll need" section and access its folder. In our example, we have put this file in C:\imagex\imagex.exe
Type the following and hit enter (remember to replace o: with the letter you have chosen in the previous step):
imagex.exe /apply C:\wim\install.wim 1 o:
This will take some time. The Windows installation image is being deployed to your external driveOnce done, type the following to create the boot section (remember to replace o: and b: with the letters you've chosen in the previous step):
o:\windows\system32\bcdboot o:\windows /f ALL /s b:
If you get an error message saying that you can't run this program on your PC, then most probably you are running on a 32 bits installation of windows and you're trying to deploy a 64 bits install. This means you did not read the important notes in the beginning of this guide
If you get an error message on the options that can be used with the BCDBOOT command, then it's because you're installing Windows 7, and the /f option is not supported. If that is the case, remove /f ALL from the command and retry.
Step 4: Boot from your external drive and install Windows
Plug in your external drive:
If you've done all the previous steps from a Windows PC, unplug your external drive from your PC and plug it to your Mac, either on a USB3 or a Thunderbolt port.
If you've done all the previous steps from your Mac using a Virtual Machine, ensure the external drive is plugged in to a USB3 or Thunderbolt port. Using USB2 should also work but you'll get very poor performance so I don't recommend doing that.
Reboot your Mac and once the bootup sound is over, immediately press the ALT (option) key and release it only when the boot drives selection screen appears. If you did not get the boot drives selection screen, reboot and try again. The timing to press the ALT (option) key is quite short. It must not be too early or too late.
On the boot selection screen, choose "Windows" using the arrow keys on your keyboard, then press enter.
The Windows installation starts. Follow the on-screen instructions as normal. The installation program will restart your computer one or 2 times. Don't forget to press ALT (option) right after the bootup sound, and boot on Windows again each time to continue the installation.
Step 5: Install bootcamp drivers
Once the Windows installation is complete, plug in the USB stick where you stored the bootcamp drivers (see "what you'll need" section), open it and right click on "setup.exe" and select "Run as admin". Follow the on-screen instructions.If you have an error saying that you can't run this program on this PC, obviously you have installed a 32 bits version of Windows and the bootcamp drivers for your Mac are made for a 64 bits version. You have to restart the whole guide and make sure to get a 64 bits version of Windows this time!
Once the bootcamp drivers are all installed, reboot and press ALT (option) after the bootup sound to boot on Windows again. And Voilà, you have Windows installed on your USB3/Thunderbolt drive running on your Mac.
Now each time you want to boot on Windows, press and hold the ALT (option) key after the startup sound and select "Windows", then press Enter.

Hi i'm trying to follow your guide, I installed windows 8 on bootcamp to do it planning to remove it after the operation is done, but i get stuck at part 3: every command i give to imagex i get a pop-up ftom windws asking how do I want to open this kind of file install.wim and imagex does nothing, what do i have to do to stop those pop-ups?

HT3258 I have a Brother MFC-J4610DW and can't get it to print from my 2012 iMac over my lan.

I have a Brother MFC-J4610DW and can't get it to print from my 2012 iMac over my lan. It works with the macbook pro and iPad. The dialog box states "Setting up 'BrotherMFC-J4610..." Unable to communicate." I worked with the AppleCare guy for a couple of hours. We got it to print via USB but when we switched to ethernet hook up via Time Capsule it won't communicate or install the printer.

Try two things (separately, trying to add the printer in Print & Scan/fax prefs after each):
Reset the printing system:
http://support.apple.com/kb/ht1341
Reset the router - power it off for 15 secs, then back on. Some routers cause these kinds of errors - not recognizing devices are present.

HT5219 I would like to use my iMac 7,1 as a monitor for my Mac mini 2012. Is that possible and if yes, what type of cable connection do I need? Thank you.

I would like to use my iMac 7,1 as a monitor for my Mac mini 2012. Is that possible and if yes, what type of cable connection do I need? Thank you.

No. Your iMac only has DVI video connection. You would need an iMac with Thunderbolt.

I have a late 2012 iMac and a late 2009 mac mini. I want to know if I can take the 8 GB of ram from the iMac and install it in my mac mini.

I have a late 2012 iMac and a late 2009 mac mini. I want to know if I can take the 8 GB of ram from the iMac and install it in my mac mini.
According to Cruicial my mac mini could use:
Module Size: 8GB Kit (4GBx2)
Package: 204-pin SODIMM
Feature: DDR3 PC3-8500
Specs: DDR3 PC3-8500 • CL=7 • Unbuffered • NON-ECC • DDR3-1066 • 1.35V • 512Meg x 64
Also According to Cruical my iMac uses:
Module Size: 8GB Kit (4GBx2)
Package: 204-pin SODIMM
Feature: DDR3 PC3-12800
Specs: DDR3 PC3-12800 • CL=11 • Unbuffered • NON-ECC • DDR3-1600 • 1.35V
I want to increase the ram in both computers.
So, can I put the iMac ram in my mac mini and then I'd only have to buy ram for my iMac? Naturally the ulitmate test will be when I actually install it, but having an expectation of success or failure will allow me to plan on what to spend money on.
Thanks,
Bear

Thanks for the responses. I probably wont even try as my priority is Ram for the mac mini. 2 is not enough. 8 for my imac is okay for now.
Somewhere I thought I'd heard that faster Ram would simply clock at the lower speed. It seems that I am incorrect.
Thanks,
Bear

Green/purple lines up and down right side of 27" imac

I bought my 27" iMac about 6 months ago, running Boot Camp (problem is not exclusive to one OS, it happens in both Windows and OSX). It started as just a small, isolated square of purple lines that randomly appeared one day as I turned it on. It went away fairly quickly, so I thought nothing of it. It came back less than a month later, except now it went completely up and down the monitor in a thin stripe. It would flicker between purple and green lines, then go away; it usually happened immediately following starup but would go away pretty soon. It got progressively worse and worse, as now it takes up the entire right quarter of the screen, happens basically every half hour or so, continually going away and coming back. Sometimes it will be a stripe, sometimes it will go to the end of the monitor, it is not possible to predict when it will happen, or how bad it will be. Interestingly, if I bring up a window that is completely white, it will go away. It has to be completely white, not even slightly gray. Incredibly frustrating, considering I spent $2200 on this thing.
I've taken several pictures when it happens, I try and go into the Apple store and see if they have any insight, but they tell me they can't tell me anything unless I schedule a meeting at the Genius Bar and bring my iMac in. Worst policy I've ever heard, I'm supposed to bring my heavy, gigantic computer to a crowded mall because they refuse to offer me any support? Or at least tell me, "Yes, that is a common problem, if you bring it in, we can fix it." I have to bring it there, and then take a chance that it won't get fixed right there. Excellent. Especially considering I use my computer daily for school AND work, I cannot afford to go a single day without this machine. Has anyone else experienced this problem, and if so, were they able to fix it? I've included pictures of both the first time it happened, as well as random times it has happened since then.

apple just released a firmware to fix a graphics issue with some Imacs have you tried upgrading to that? It doesn't say anything about this type of issue, but you might want to start there.
If not I would set and apt. and take it into the store it looks like there is something really wrong with the monitor. I saw a friends monitor do something that and he said it ended being an over heating issue. Ether way you have to take it in so they can replace it or send it to be fixed. Sometimes they are able to fix things in the store, but can't do anything for you with out it there.
It is better then going into a best buy and saying fix my PC.

TS1702 I just purchased and down loaded Pages to my iMac. How do I get Pages over to my iPad?

I just purchased and down loaded Pages to my iMac. How do I get the Pages app over to my iPad?

Kayden66 wrote:
I will purchase the the Pages app from the app store. Will the two apps sync? If how are they synced?
Through iCloud-> http://www.apple.com/icloud/features/documents.html

W520 LED backlight and LCD quality

First of all, thinkpads are the best notebooks, really. But please, stop using pulse-width modulation to dim brightness of LED-backlit screens, it's flickers when using screen at any brightness other than full. It's really eye-straining!
Another issue is TN LCD in such a hi-end thinkpad as W520 (yes, I mean that 95% gamut full HD display, and, yes, even after calibration), it's not bad comparing to other thinkpad LCDs, but please use IPS LCDs for high-end models. Guys, thinkpad LCD are the worst part of thinkpad, if you thing "it's business product, not consumer one, LCDs are fine", you are wrong, business models need professional screens as well.
Moderator note; profanity removed Forum Rules
Solved!
Go to Solution.

Here you go, enjoy! These were made with a Spyder3 and dispcalGUI. I've also used ColorEyes Display Pro and it gives very similar results, but the consistency in the dark gray tones is not as good.
Some important info about these profiles: the first link is a very precise LUT-based profile combined with an inverted matrix-based profile. I'd recommend most of you don't use this profile unless you understand color management. If you use this profile with a program that does not support XYZ-LUT profiles, then it will show the colors as inverted (ex. Windows Photo Viewer). The is done intentionally because it lets you know it's not using the more-accurate LUT-based profile and is instead using the less-accurate matrix based profile (which is the color-inverted profile). However, using this profile with a truly color-managed app like Photoshop or Lightroom will yield very, very nice results. White point 6500K/D65, gamma 2.2.
https://www.dropbox.com/s/hmdbau8c32y5yt9/dispcalGUI%20ThinkPad%20Display%201920%202012-04-30%20D650...
This second profile will work acceptably with most programs. It's not quite as extremely accurate as the first, but still very good. The gamma curve for this profile is L* instead of 2.2, which I prefer for most normal use, because it lessens the "black crush" at the bottom of the gamma curve and makes shadow details more visible. White point, again, is 6500K/D65.
https://www.dropbox.com/s/ruyk59sqdu7orbe/dispcalGUI%20ThinkPad%20Display%201920%202012-04-30%20D650...
If you don't know how to have Windows load these for you:
-First, copy the profiles to C:\Windows\System32\spool\drivers\color (this is where Windows stores color profiles for devices). Or, you can simply right-click on the files and select "Install Profile"... but we're not done yet.
-Next, go to Control Panel > Color Management
-Make sure at the top, next to Device, it says "Display: 1. ThinkPad ..."
-Put a check mark in the box that says "Use my settings for this device"
-In the box under "Profiles associated with this device," you may or may not see the profiles I gave you (they start with "dispcalGUI Thinkpad Display ...") If they are not listed, click "Add..." and select them from the list, click Ok.
-Now, find the one you want to use (for most I'd recommend "dispcalGUI ThinkPad... HQ 3xCurve+MTX"), click on it to highlight it, then click "Set as Default Profile"
-Now, click the "Advanced" tab at the top, and down at the bottom, click "Change system defaults..." In the new window that pops up, click the Advanced tab again (Don't change anything else!)
-Put a check in the box that says "Use Windows display calibration," click "Reload current calibrations" and then click close on all the windows
You should have seen the screen change slightly, and the display profile is now loaded. Windows will now load it automatically on its own.
One last important bit of advice: one of the Intel processes that runs on the W520 will un-load the display calibrations whenever the screen darkens for a Windows UAC prompt, or after coming back from sleep. Instructions for fixing that are here: http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/w520-color-calibration-issue/td-p/728457
EDIT: forgot to add, one last thing, this is very important: go to start, type in msconfig, click the "Startup" tab, and UN-CHECK "X-RITE Legacy Device," "CalibrationLoader5.0," AND "Color Calibrator Tray." Click apply, then ok. These are the processes associated with the built-in color sensor, if you have it, and they may interfere with Windows loading the profiles.
Josh

2012 imac led backlight up and down?

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