Assistance request. iMac intel unable to boot.

iMac unable to boot. I have been unable to boot from original install disks. I transfered the install disk to a usb key. I am in the single user terminal screen. Would like to wipe iMac clean and reinstall from the Key. However don't know the comand lines. Thanks

Only a couple of things left for you to try...
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Pull the RAM & reseat it.

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27 inch Imac Intel won't boot up. Screen ligthts up, then shows a flashing file folder w question mark. What can I do to find the problem?

27 inch iMac Intel won't boot up. Screen lights up, then shows a flashing file folder w question mark. What can I do to find the problem?

Please readd Apple's trouble shooting steps in Flashing question mark appears when you start your Mac

Imac Intel will not boot up - 3 days old, light on, starts to spin...

I got an Imac Intel 20" from my husband on mother's day and it now will not turn on!! White light comes on, sounds like it is trying to boot and then nothing... blank screen, no beeps - have unplugged and restarted, tried a million key combination from the forums and still nothing... locked up once on "Garage?" software (according to son)... worked for 2 days...
Very dissapointed and sad... husband looking like the PC is still a better box even after breaking down and getting the Imac - can't help much because this is all new to him...
Help!

If you bought your imac with a credit card anywhere in your home state(or within 100 miles of your home in another state), then you can return it within 30 days if you are unsatisfied. That is federal law, and a store cannot do anything to deprive you of those rights--no matter what they say (or what they print on the receipt under your signature). My Apple store tried to tell me they only allow returns for 2 weeks. I told them the were violating federal law and they were required to issue a credit for the amount of the return, and they reluctantly complied.
I believe credit card companies are now required to print those rules on your bill (mine does and I don't think it would do so voluntarily), so you can check the fine print on your last bill and read them.
So, if you meet the above requirements, take your imac back . Insist on a refund. Be firm. If the retail person won't do it, tell them you want to speak to a manager. Once they credit your account, walk up to another retail person and tell them you want to buy a 20" imac.
If the retailer won't credit your account, then call your credit card company, and tell them you tried to return a defective product within the 30 day limit that you bought in your home state, and you would like them to reverse the charges.

Imac (intel) flickers when booting up

My iMac (intel) locked up today and I had to had to shut it down by turning off the power. Now when booting up, it begins to flicker at the top of the screen when it's supposed to show the log in area.
Really not sure what to do, any troubleshooting?

Try Reset PRAM.
Some of the display settings are stored in PRAM.
Reset PRAM: http://support.apple.com/kb/PH14222
Best.

My iMac intel is not booting

My iMac intel suddenly stopped responding. On trying to restart it failed to boot. I am getting a white screen with a folder icon with a ? Sign. Efforts to do a safe start by pressing shift have not helped. What should I do next?

Your Mac can't find a file from which to boot.
A safe boot by holding down the shift key may help.
If not, what version of OS X was it running?
Allan

IMac (Intel) Restore DVDs don't work if the drive has been formatted first

Here's an interesting find...
we have a gob of iMac G5s that were being re-imaged and one iMac Intel was mistakenly re-imaged with a G5 dmg (via Firewire Target Disk Mode).
As expected, the iMac Intel wouldn't boot from a 10.4.4 image built on a G5, but now when I try to restore the Intel back to the out-of-the-box state (booting from its OS dvds), the installer reports "You cannot install Mac OS X on this volume. Mac OS X cannot start up from this volume." The Options button is greyed-out (where normally you could select Options and choose Erase and Install).
Further inspection on another out-of-the-box Intel iMac (in Firewire Target Disk Mode) shows its hard drive is actually partitioned into two volumes: One is a 200MB partition, the other is the remainder and mounts as Macintosh HD. The 200 MB partition will not mount (via Disk Utility).
I'm assuming that since the Intel iMac's drive was erased prior to booting from it's OS DVDs, the necessary partitions are not present.
Anyone have any info? I'm guessing that since I did not initiate the restore from the DVD's "Install Mac OS X and Applications" script the drive did not get partitioned correctly...
TIA -m.

Yeah, I found that out. Here's one link that describes the issue:
http://db.tidbits.com/getbits.acgi?tbart=08405
My point was to illustrate the OS Installer/Disk Utility’s inability (while booted from the OS DVD) to provide the option to choose the GUID partitioning scheme for a volume during an “erase and install” on a drive that has been previously formatted under the “traditional” partition scheme – the “options” button does not appear.
To reinstall to factory defaults, I had to boot the target iMac into Firewire disk mode and use another iMac (Intel) and its Disk Util to get the “options” button to select the GUID partition scheme.
Oh well, I’m sure Apple’s working on that…
-m.

Unable to boot computer iMac intel after downloading and installing latest iPad software

I downloaded and installed the latest iPad software and my iMac will now not boot up. The iMac was getting a little slow just prior. Is one year old and this is the first problem. I have put the system DVD in and rolled back a couple weeks. Still no start up.

Imayit55 wrote:
Sorry. I downloaded the latest iPad update through iTunes using my iMac. Then synced the iPad to update the iPad. Updated iPad is fine. iMac will now not boot up. I put the iMac osx install dvd disk in and used it to rollback two weeks. No help. I am now running the disk verify program from the osx install DVD
There is no rollback feature on the OSX disc (which version of OSX is this, Leopard, Snow Leopard?) so I am unable to understand this unless you are referring to a restore from Time Machine, is this what you did?

Imac Intel - Assistance please

Hello all,
I have encountered a problem with my IMAC Intel, it no longer boots pass the white apple logo screen, tried to boot from apple installation disc thinking I could reload (leopard OS), it went through 80% of the installation and then frooze, tried couple of times but in vain.
I reckon its a problem with the hard disk, but i'm not 100% certain. Is there a way i could access the Bios and run a full test on the hardisk?
Any assistance or advise would be much appreciated.

You need the Apple Hardware Test disc that came with your computer in order to run any hardware diagnostics. However, the info you've provided does not necessarily mean the drive is bad, but it probably needs to be reformatted.
Drive Preparation
1. Boot from your OS X Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. When the formatting process has finished quit DU and return to the installer. Reinstall Leopard.

I am puzzled by iMac(Intel ?). I am running an iMac 24 and use Mac:Office 2008. After having downloaded my Os X LION upgrade, I am suddenly unable to SAVE (and thus alter) my Excel quotations. This is a major issue for a salesman. Can anybody help me

I am puzzled by the meaning of iMac (Intel) as I use an iMac 2 period. I am running Mac : Office 2004 and do all my quotations in Excel. After upgrading to OS X LION, I am suddenly unable to SAVE my spreadsheets. As a salesman whose quotations need frequent updating, my situation is perilous to say the least. Can anyone help me ?

Office for Mac 2004 is NOT compatible with Lion. It must be upgraded to Office for Mac 2008 or 2011, once you have upgraded the files will be accessable. Office for Mac 2004 is written for old PPC (Power PC) based machines. Beginning with Lion support for PPC based apps has been dropped.

My imac (intel core i5, OS 10.10.1) shuts down every night and will not "wake up" next morning -- it never used to do that -- if I hold down the start button more than twice for many seconds, then it will finally boot up and works fine all day – I've

my imac (intel core i5, OS 10.10.1) shuts down every night and will not "wake up" next morning -- it never used to do that -- if I hold down the start button more than twice for many seconds, then it will finally boot up and works fine all day – I’ve tried shutting it down and unplugging it, and that does not work -- I’ve run disk utilities checked permissions, and run anti-virus and get no adverse results – I cannot figure out what is different that causes this problem

From previous experience 3 indicates a shutdown initiated by the SMC (System Management Controller) — hardware responsible for many low-level functions including power, sleep, lights, and fan activity.
Try resetting it:
Power or other problems related to unexpected system sleep, shutdown, lights or fans call for an SMC reset. Read all the steps.
Before Resetting the SMC
Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.
Press Command + Option + Escape to force quit any application that is not responding.
Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
Restart your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Restart.
Shut down your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.

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

I have a HP TX2Z-1000. The HP assistant prompted for a BIOS updated & now I'm unable to boot.

I have a HP TX2Z-1000. The HP assistant prompted for a BIOS updated & now I'm unable to boot. I let it go through it's process it shut down and now I'm getting post code indicating a CPU failure? Can a bios update fry the CPU?
I've removed the batteries, 30 minutes later I attached the power cord and tried to boot with the same result. Can you shed some light on what maybe going on and how to fix it?
Thank you!

Can you get the exact error code?

Imac (intel) will boot but nothing will open

Imac (intel) will boot but nothing will open.

Amazingly ..... I solved the problem by taking the batteries out of the wireless mouse.
The mouse seemed to work. The curser would move around and the dock would pop up, but nothing would open.
Everything's fine now.

I run an iMac Intel Core2 due with mac OS 10.7.3. One software package is HMRC Basic Tools and I am unable to install the latest updates. I open them up enter my password and press enter and they close down. Apple and HMRC are unable to help..ates

I run an Imac Intel Core 2 duel with Mac OS 10.7.3. I run a software package provided by HMRC and called a Basic PAYE Tools. I am trying to install the latest 2012 update for the new tax year. I have downloaded this with no problems and I click on the icon to open this. I am asked for my computer password which I enter. Then press enter and the update closes down. I have tried this several times and the same thing happens. I have the appropiate Adobe packages for this to work.
Help please as Apple helpdesk and HMRC helpdesk cannot find out why. I have even obtained a CD with the updates from HMRC and the same thing happens.

Thanks, this worked for me, too.
At first I tried to Quit Virusbarrier x6 but it kept on running. Then I disabled the Real-time Scanner and it all worked fine after that.

24" iMac (Intel based) does not boot.

Hi there,
My iMac 24" refuses to boot, OS Lion present but no recovery nor anything else.
If i try to diagnose the machine, this message pops up "! OUCH !!! : mshdlr loc zero not zero ! 00007007000000000h @:eeeeeeeeeeeeeeeeeeeeh"
Tried to replace RAM, detach HDD, inserted Lion or any other OS but results in a blank screen after spin.... It hangs somewhere but no idea.
Thanks to you all for the eventual responses
Cheers
Erik

Do some basic resets such as iMac SMC and PRAM reset . If those don't work double check the connection, check to see if it's the plug socket, power strip or other connection. If you eliminate those then and it still won't boot if the machine is less than a year old it's covered by warranty however if you bought AppleCare it will also be covered. If you have AppleCare give them a call and they will do some trouble shooting over the phone and if it still won't work they'll help schedule an appointment at your local Apple Store. If you don't have an Apple Store in your area,you will need to take it to an AASP and AppleCare can help you locate one close to you.

Assistance request. iMac intel unable to boot.

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