My intel imac White screens when booting

My intel imac White screens when booting. I have completed; power off restart - comnd-option p-r
While off I held power button 30 sec power cycled holding the apple button.

Try to restart in Safe Mode and let us know what happens.
Roger

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SOLVED-Install not booting on Intel Imac-white screen

I just tried to install Archlinux with the new install disc fo the fifth time, without succes.
When I restart the computer all i get is a white screen.
Restarting the install disc, mounting the harddisk partitions and arch-chrooting I can get into the installed linux, I can do everything even install new programs and get these working but when starting normally it's the white screen again.
It is an Intel Imac dual core with 27" screen on whitch the old install disc did it's work flawlessly.
Any idea where I can start searching?
Last edited by mianka (2012-08-03 14:14:52)

How long do you wait on that white screen?
I have arch on two different macs - and early iMac, and an early macbook. They both have long delays on the white EFI screen.
There are allegedly ways to fix this but I have never bothered as I do not reboot either of these machines that often. Many reports claim it should be a 30 second delay, but on the IMac I'm typing from now (in arch) it is at least 2 minutes. Whenever I need to reboot this machine, I just type reboot, then go for coffee.

Getting white screen when booting with alt key

Hi, I've installed windows 7 with boot camp on my brand new iMac 27" on OS X Lion.
Everything works fine when I configure boot camp to start as mac, or as windows.
However If I press the alt key when booting, as per this tutorial http://labnol.blogspot.com/2006/04/boot-camp-tutorial-install-windows-xp.html I get a white screen and that's it. Any Idea as to what might be the problem?

Hi
Try resetting the Parameter RAM (PRAM) - pronounced peeram. Restart the mac and depress the P, R, alt and command keys simultaneously. You should hear the boot chime. Keep the keys depressed until you hear the boot chime three more times. Release the keys thereafter.
Other possibilities are: you're filling up the hard drive and you need to clear some space; a problem is developing with the hard drive and/or directory structure. You need to run a disk repair utility such as fsck, DU's Repair Disk coupled with Repairing Privileges or something 3rd-Party such as Disk Warrior.
Tony

White screen when booting

Yesterday i downloaded driver and software for hp 8600 printer. Today, the imac 2009 does not boot. All i get is a white screen. Is there anything i can do?

Disconnect all peripherals from your computer.
Boot from your install disc & run Repair Disk from the utility menu. To use the Install Mac OS X disc, insert the disc, and restart your computer while holding down the C key as it starts up.
Select your language.
Once on the desktop, select Utility in the menu bar.
Select Disk Utility.
Select the disk or volume in the list of disks and volumes, and then click First Aid.
Click Repair Disk.
Restart your computer when done.
Repair permissions after you reach the desktop-http://support.apple.com/kb/HT2963 and restart your computer.

White screen when boot up

hi,
my macbook doesn't boot up it comes with a white screen and that's it . what to do ??/

I am having exactly the same problem right now. After some research, it looked like my HD was toast. I replaced it today, that part was easy, but now I cannot seem to use my original Install Disk to format the new HD. I get a grey restart screen, or if I get to the Language Selection screen, my cursor is frozen in left corner and I can't use it.
Very frustrating, hope someone else has some ideas!
PS My MacBook was about same age, and "expired" in exactly the same way as yours.

Intel imac (white) will not start up, please help.

I have a 20" intel imac (white not silver) running 10.6.4.
I can not get it to boot up on its own, the farthest it gets is to the Silver Apple with spinning gear.
I have tried:
1. safe restart - the result is - I get a circle with slash and the a folder with ? and then the silver apple with gear spinning.
2. booting from disk warrior and running it - the result I get is -"The new directory cannot replace the original directory because of a disk malfunction."
3. reinstalling the OS from the start up disk, - the result I get is - "The contents of this disk can't be changed."
4. starting from the OS 10.6 disk and running Disk utilities - the result I get is - "Invalid node structure, The volume Macintosh HD could not be verified completely. Error: This disk needs to be repaired. Click Repair Disk." When I hit repair button I get this result, "Error: Disk Utility can't repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
All of these methods have failed me. Can anyone please help me? I really need to be able to at least recover some files from the imac. That is my main concern at this point.
Thanks in advance.

The problem is I can not get my HD to boot up, I can start up with the install disk but disk utilities can not repair the disk. I can not dragNdrop, it wont let me select files. I can not reinstall the OS because it says their is a problem with my drive. It sounds like I'm screwed but my business related info is to important to just give up.
I was able to make a disk image of a folder that had I few files I need and was able to copy that disk image to my external drive. So I may have to do that (tideous but I am willing to do that to recover the data).
Any other thoughts before I take it somewhere?

Blue screen when boot from cd and cannot open diskutil

HEllo
i have problem my macbook pro 2011 i7 when i boot up after apple logo display white screen , when i boot from cd display blue screen , i'm format my ssd but same problem
when i'm try open diskutil with CMD +R open Recovery network
Any body can help me ?

when i'm try open diskutil with CMD +R open Recovery network
I don't understand what you are talking about.
Startup - Blue Screen
Startup - Gray, Blue or White screen at boot, w/spinner/progress bar
Startup Issues - Resolve
Startup Issues - Resolve (2)

White screen when attaching printer

Help, my HP Deskjet multifunction device was working ok with my Mac Mini,, then I couldn't scan so I deleted the printer in prefs and reinstalled it.
This was when the problem started, because now if I try to start Mac Mini with printer connected via USB and I get a white screen on boot up I've tried waking for 10 mins and still nothing.
However, as soon as I disconnect the printer it boots ok.
Any help to fix this greatly appreciated.

It's time to get a new printer.

White screen when I turn the Satellite M50 on

I intermittently just get a white screen when I turn the computer on. Usually the problem is solved by switching the computer off and trying again - but sometimes I get a white screen again.
It seems to be connected to use of external devices - can anyone give me clear instructions about what should/should not be connected when I start and shut down the computer? Or any other suggested solutions?
Thanks

Thanks for your reply/advice - and the tip about Antivir. I used to use AVG and then Norton came as a package with this laptop....will have a re-think when my subscription need renewing.
I have updated the display/graphics driver but am still having the same problem of a white screen at boot-up. On reflection I think it is possibly a loose connection as I have just been a long trip with the laptop - including a fairly bumpy 4 hour bus ride - and I recall having the same problem several months ago which self-corrected after a similar trip (taking it down to a Toshiba ASP who never saw it as they were closed for the week-end and I had to get back to work!). This may sound strange but I took the laptop for a walk yesterday to see if any loose connection would shift and it then booted up on the second attempt rather than the 8th!
I guess I'll have to take it to the ASP - unfortunately it's no longer under warranty.
EDIT:
Problem solved. High temperature caused this issue
http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=23402

White screen no boot up

Hello
here is an extensive list of what the problem is and what i have done i need help with this one
NO COMMANDS WORK AT ALL ON THE COMPUTER SOME COME UP WITH THE APPLE LOGO
when the air is turned on i get the white screen nothing else
all commands and reinstall have been tried either get nothing or the apple logo
when i try to use an external usb i get
ifiboot loaded from device acpi pnp0a03 0 / pci 1fi2/sata 0 0 /hd part2 sigb3b7288c-2b22-47bd-b696-2f2d2f5b2b96 boot file path : \system\libary/coreservices\bootefi ..loading kernel cache file 'system\library\caches\com.apple.kext.caches\startup\kernelcache' .............
and thats all the life i get from it
when i disconnect the ssd nothing works white screen
when i disconnect the battery nothing works white screen
Any ideas as i am stumped
thanks

Hello
here is an extensive list of what the problem is and what i have done i need help with this one
NO COMMANDS WORK AT ALL ON THE COMPUTER SOME COME UP WITH THE APPLE LOGO
when the air is turned on i get the white screen nothing else
all commands and reinstall have been tried either get nothing or the apple logo
when i try to use an external usb i get
ifiboot loaded from device acpi pnp0a03 0 / pci 1fi2/sata 0 0 /hd part2 sigb3b7288c-2b22-47bd-b696-2f2d2f5b2b96 boot file path : \system\libary/coreservices\bootefi ..loading kernel cache file 'system\library\caches\com.apple.kext.caches\startup\kernelcache' .............
and thats all the life i get from it
when i disconnect the ssd nothing works white screen
when i disconnect the battery nothing works white screen
Any ideas as i am stumped
thanks

IMac white screen after sleep since latest update

Ever since I updated our iMac to 10.8.3, we get a blank white screen when we wake it from sleep. We can "wipe away" the white to reveal the desktop by dragging the mouse across the screen. It appears to be a video memory issue.

I have the same problem ever since I updated to 1.8.3.
Have any of you heard about a possible way to fix this?

Why does my Mac stay on the white screen when I turn it on?

Why does my Mac stay on white screen when I turn it on?

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.
There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.
a. Boot into the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 3
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 4
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 5
Boot in safe mode. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 6.
If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 6
Launch Disk Utility in Recovery mode (see Step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
Step 7
Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 8
Repeat Step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
Step 9
This step applies only to older Macs (not current models) that have a logic-board ("PRAM") battery. Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a boot failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 10
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

I downloaded 11.1 but now can't access the store, can only view my library. I've reinstalled but still get a blank, white screen when I try to go to the itunes store. How can I get to the store for purchases?

I downloaded 11.1 but now can't access the store, can only view my library. I've reinstalled but still get a blank, white screen when I try to go to the itunes store. How can I get to the store for purchases?

In iTunes prefs>Store - is the Store check box unchecked?
Did you repair pemissions with Disk Utility?
MJ

What is missing when I get a blank white screen when I try to Access some web sites?

On some web sites, I get a blank white screen when I try to access them.

You can try these steps in case of issues with web pages:
You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
*Hold down the Shift key and left-click the Reload button
*Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
*Press "Command + Shift + R" (Mac)
Clear the cache and remove cookies only from websites that cause problems.
"Clear the Cache":
*Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
*Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"
Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
*Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
*Do NOT click the Reset button on the Safe Mode start window
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

I have a new ipad and everything works but can't connect to the app store. Itunes works and the wifi seems to be working but i get a blank white screen when i open the appstore.Nothing will load unter the features or charts tab. Any Suggestions?

I have a new ipad and everything works but can't connect to the app store. Itunes works and the wifi seems to be working but i get a blank white screen when i open the appstore. Nothing will load unter the features or charts tab so i cant download any apps. Purchased and updates tab loads fine. Any suggestions?

You would get better response from the iTunes community forum.
Have a nice day!

My intel imac White screens when booting

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