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.

Similar Messages

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

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.

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

Indigo iMac 500 Panics when booted from a Firewire drive

Hi all,
I have an iMac 500 Indigo and am trying to upgrade i to osx as other in this computer lab. I have been provided with a FireWire drive with a bootup of Tiger and a Panther disk image. Out of 32 computers here only three have ceaced to work. They are all the same 384 MB of RAM I have tried to a restore in FW Target Disk mode with no luck I am now trying to copy the files via classic probibly in vain. So back to the error, I see the computer in the UNIX bootup stage for a few (the grey apple with the progress indicator.) and then I get a Panic written directly to the screen over top of the graphic indicator as seen on older versions of OSX (10.0 10.01 or so)
Thanks
Sean

The firmware update is a good suggestion to check.
Here's another thing. You say you have been "provided with" an external firewire drive with Tiger on it. How was that Tiger OS installed on that firewire drive? If it was done on a computer that is not identical to your iMac, then it very well will not be able to boot your iMac. When you install Tiger or Panther or any version of Mac OS X, what is actually installed is a custom version of OS X that is tailored to the specific model of computer you are running at the time. So if the firewire drive has a Mac OS X that was installed, say from a G5, then that drive MIGHT only be able to properly boot that model of G5. It MIGHT be able to boot a G4 or a G3, but I think the odds are against that.
The reliable way to install OS X is from an OS X CD that is the commercially sold boxed version (not the installation CD that comes with a specific model of Macintosh, and not a firewire drive that has OS X from some other model of Macintosh).

Imac keeps ejecting when booting up

Dont have problems with the super drive in other cases. It works fine, burns fine, copies fine, plays fine...
but everytime i need to run something from the disc doing boot up(like the leopard install disc or the vista install disc for boot camp) it just ejects them!
and when i push options button, and get to the OS selection screen, the Imac still pushes out the DVD... And when i put it back in the DVD is displayed as an efi file. I dont know what that is!
when the machine has booted up, it displays and reads and writes all the CDs and DVDs just fine, so its something doing boot up!
is it possible to change something in bios? its probably some stupid little setting i cant figure out.
My Imac is a month old. its the newest high end model. Could really use the help!

I'm experiencing the same thing on a MacBook Early 2008. I used Boot Camp to create the partition and started the process of installing Windows XP. The disc, however, is ejected on boot. Always. I've tried with 2 discs and still happens. If i boot pressing the Option key i can insert the disc and it will be recognized, but i can't boot from it. Something weird is happening.

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.

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.

IMac (Intel) Crashes

My IMac (Intel) crashes when I am playing zanga games on facebook. Last time took me 9 times of rebooting to get it going. Anyone else having this problem. I am running 10.4 Tiger.

Try resetting your browser, that may help. (Safari) click the Safari menu item the select Reset Safari.

TA25225 Display Flickers in my 21" Imac Intel. This happened after the fan noise in my machine. I also reported the problem and gave to the service centre, but the problem still persist. Please help. I purchased it 3 - 4 weeks ago

Hello,
I purchased my imac intel 21" 3-4 weeks ago and in the 2nd week i faced an issue with the machine. When i switched on in, there was a fan noise and a white screen. The machine had hanged. I reported the problem and gave to the service centre. After testing for a week, they said that there is no problem with the imac. Again i faced the same problem after receiving it from the service centre. They again tested the machine for 3-4 days and reported as no problem with the machine. Couple of days back, I received the machine from the service centre, and on the same day when i switched it on, there are flickers in the display. Please help me solve the issue. I am from India. The service here is very bad.
Hope for a resolution
Thanks

Hello RedDevil07
Yes I agree with seventy one. It's common sense to do this, especially now. I would also contact AppleCare and report this issue with them, it will get documented and you will have a caseID that you can refer to when talking to them in the future should this issue go one.
Be polite with AppleCare and your AASP. Hopefully everyone is being honest and trying to help you and not what might appear to be the opposite.
Patience is a virtue, but I thoroughly understand your frustration.
Let us know how it goes, we are here to help in whatever way we can.
I encourage you to contact AppleCare to report this experience and get their recommendations. There is an expectation that you should have that AppleCare is there to help you as a customer. I am sure they will too!

Imac 27 Intel will not boot normally only in Safe Mode

I posted previously but the answer to the question was did it wake up in safe mode, i did not give it a chance and I restored from back up to 10.10, upgraded to 10.10.1 and it worked for 1 week and returned to the previous problem.
I ran AHT - Passed, reset PRAM, verified disc - Passed, repaired permissions and removed each RAM module and still will only boot in safe mode. The crash report is below.
It locked up while on Safari, and wake up. When booting it loads the first 25% then goes to grey screen and stays there with spinning beach ball or just pointer never goes to log in screen.
In Ten (10) Crash logs it gives me the following reason:
Process:               fontd [337]
Path:                  /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/Support/fontd
Identifier:            fontd
Version:               375
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           fontd [337]
User ID:               501
Date/Time:             2014-12-26 12:21:45.036 -0500
OS Version:            Mac OS X 10.10.1 (14B25)
Report Version:        11
Anonymous UUID:        3D86DE4D-DF6F-C140-16F8-4F80DBCD6634
Time Awake Since Boot: 250 seconds
Crashed Thread:        2 Dispatch queue: Scanner Queue
Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       EXC_I386_GPFLT

EtreCheck version: 2.1.5 (108)
Report generated December 28, 2014 at 2:44:03 PM EST
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Click the [Adware] links for help removing adware.
Hardware Information: ℹ️
iMac (27-inch, Late 2009) (Verified)
iMac - model: iMac11,1
1 2.66 GHz Intel Core i5 CPU: 4-core
12 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1067 MHz ok
BANK 1/DIMM0
2 GB DDR3 1067 MHz ok
BANK 0/DIMM1
4 GB DDR3 1067 MHz ok
BANK 1/DIMM1
4 GB DDR3 1067 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
ATI Radeon HD 4850 - VRAM: 512 MB
iMac 2560 x 1440
System Software: ℹ️
OS X 10.10.1 (14B25) - Uptime: 2:13:47
Disk Information: ℹ️
ST31000528ASQ disk0 : (1 TB)
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 999.35 GB (528.66 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
OPTIARC DVD RW AD-5680H
USB Information: ℹ️
HP Officejet 6500 E709n
Apple Internal Memory Card Reader
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Alcor Micro Corp USB Card Reader
Apple Computer, Inc. IR Receiver
Apple Inc. Built-in iSight
Firewire Information: ℹ️
LaCie d2 DVDRW FW/USB 400mbit - 400mbit max
LaCie d2 Quadra v3C 800mbit - 800mbit max
EFI (disk1s1) <not mounted> : 210 MB
Time Machine (disk1s2) /Volumes/Time Machine : 2.00 TB (251.43 GB free)
LaCie d2 quadra (button) 800mbit - 800mbit max
EFI (disk2s1) <not mounted> : 210 MB
2T Photo's & Video (disk2s2) /Volumes/2T Photo's & Video : 2.00 TB (944.02 GB free)
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/Toast 10 Titanium/Toast Titanium.app
[not loaded] com.roxio.BluRaySupport (1.1.6) [Support]
/Library/Extensions
[not loaded] com.microsoft.VirtualPC.Networking.1028 (7.0.3) [Support]
[not loaded] com.microsoft.VirtualPC.Networking.1040 (7.0.3) [Support]
[not loaded] com.microsoft.VirtualPC.OSServices (7.0.3) [Support]
/System/Library/Extensions
[not loaded] com.Belcarra.iokit.USBLAN_netpart (2.0.2) [Support]
[not loaded] com.Belcarra.iokit.USBLAN_usbpart (2.0.2) [Support]
[not loaded] com.Logitech.Control Center.HID Driver (2.6.0) [Support]
[not loaded] com.RemoteControl.USBLAN.usbpart (2.0.6) [Support]
[not loaded] com.aliph.driver.jstub (1.1.2) [Support]
[not loaded] com.elgato.driver.DontMatchAfaTech (1.1) [Support]
[not loaded] com.elgato.driver.DontMatchCinergy450 (1.1) [Support]
[not loaded] com.elgato.driver.DontMatchCinergyXS (1.1) [Support]
[not loaded] com.elgato.driver.DontMatchEmpia (1.1) [Support]
[not loaded] com.elgato.driver.DontMatchVoyager (1.1) [Support]
[not loaded] com.wacom.kext.wacomtablet (6.1.1) [Support]
[not loaded] com.wdc.driver.1394HP (1.0.8) [Support]
[not loaded] com.wdc.driver.USBHP (1.0.10) [Support]
/System/Library/Extensions/Belcarra.USBLAN_netpart.kext/Contents/PlugIns
[not loaded] com.belcarra.iokit.netpart.panther (1.6.1) [Support]
/System/Library/Extensions/Belcarra.USBLAN_usbpart.kext/Contents/PlugIns
[not loaded] com.belcarra.iokit.usbpart.panther (1.6.1) [Support]
/System/Library/Extensions/RemoteControl.USBLAN_usbpart.kext/Contents/PlugIns
[not loaded] com.RemoteControl.USBLAN.panther (1.6.1) [Support]
/Users/[redacted]/Desktop Pictures/Icons/ /WD Firmware Updater v2.1.9.0.app
[not loaded] com.wdc.driver.WdDeviceType00 (1.1) [Support]
/Users/[redacted]/Library/Services/ToastIt.service/Contents/MacOS
[not loaded] com.roxio.TDIXController (2.0) [Support]
Launch Agents: ℹ️
[invalid?] com.wacom.wacomtablet.plist [Support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Support]
[loaded] com.microsoft.office.licensing.helper.plist [Support]
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist [Support]
[loaded] com.google.keystone.agent.plist [Support]
[running] com.mlbam.nexdef.plist [Support]
[running] com.netputing.airprintactivator.plist [Support]
[invalid?] com.swarmcast.mlbnexdefautobahn.plist [Support]
User Login Items: ℹ️
SoundTouch music server Application (/Applications/SoundTouch/SoundTouch.app/Contents/MacOS/SoundTouchMusicServer/S oundTouch music server.app)
EarthDesk Core Application (/Users/[redacted]/Library/PreferencePanes/EarthDesk.prefPane/Contents/Resource s/EarthDesk Core.app)
EarthDesk Core Application (/Users/[redacted]/Library/PreferencePanes/EarthDesk.prefPane/Contents/Resource s/EarthDesk Core.app)
Internet Plug-ins: ℹ️
WacomNetscape: Version: 1.1.0-5 [Support]
Default Browser: Version: 600 - SDK 10.10
Flip4Mac WMV Plugin: Version: 2.4.2.4 [Support]
WacomSafari: Version: 1.0.1 [Support]
RealPlayer Plugin: Version: Unknown [Support]
Silverlight: Version: 5.1.10411.0 - SDK 10.6 [Support]
FlashPlayer-10.6: Version: 16.0.0.235 - SDK 10.6 [Support]
Flash Player: Version: 16.0.0.235 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.7.3
iPhotoPhotocast: Version: 7.0 - SDK 10.8
SharePointBrowserPlugin: Version: 14.4.3 - SDK 10.6 [Support]
AdobePDFViewer: Version: 9.5.5 [Support]
CouponPrinter-FireFox_v2: Version: Version 1.1.6
GarminGpsControl: Version: 4.0.3.0 Release - SDK 10.6 [Support]
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
User internet Plug-ins: ℹ️
WebEx: Version: 1.0 [Support]
WebEx64: Version: 1.0 - SDK 10.5 [Support]
Google Earth Web Plug-in: Version: 7.1 [Support]
Safari Extensions: ℹ️
Keeper - Password and Data Vault [Installed]
Add To Amazon Wish List [Installed]
3rd Party Preference Panes: ℹ️
EarthDesk [Support]
Flash Player [Support]
Flip4Mac WMV [Support]
Logitech Control Center [Support]
MacFUSE [Support]
TiVo Desktop [Support]
Time Machine: ℹ️
Skip System Files: NO
Auto backup: YES
Volumes being backed up:
2T Photo's & Video: Disk size: 2.00 TB Disk used: 1.06 TB
Macintosh HD: Disk size: 999.35 GB Disk used: 470.68 GB
Destinations:
Time Machine [Local]
Total size: 2.00 TB
Total number of backups: 68
Oldest backup: 2014-03-22 15:08:16 +0000
Last backup: 2014-12-28 16:37:12 +0000
Size of backup disk: Too small
Backup size 2.00 TB < (Disk used 1.53 TB X 3)
Top Processes by CPU: ℹ️
      15% backupd
      8% com.apple.WebKit.Networking
      2% coreservicesd
      2% WindowServer
      1% AddressBookSourceSync
Top Processes by Memory: ℹ️
296 MB mds_stores
296 MB Safari
245 MB EarthDesk Core
142 MB Mail
90 MB WindowServer
Virtual Memory Information: ℹ️
3.99 GB Free RAM
4.45 GB Active RAM
3.37 GB Inactive RAM
1.07 GB Wired RAM
7.92 GB Page-ins
2 MB Page-outs
Diagnostics Information: ℹ️
Dec 28, 2014, 01:48:01 PM /Library/Logs/DiagnosticReports/Aperture_2014-12-28-134801_[redacted].hang
Dec 28, 2014, 12:30:56 PM Self test - passed
Dec 27, 2014, 03:32:39 PM /Library/Logs/DiagnosticReports/backupd_2014-12-27-153239_[redacted].cpu_resour ce.diag [Details]
Dec 27, 2014, 03:29:58 PM /Users/[redacted]/Library/Logs/DiagnosticReports/fontd_2014-12-27-152958_[redac ted].crash
Dec 27, 2014, 03:29:55 PM /Users/[redacted]/Library/Logs/DiagnosticReports/fontd_2014-12-27-152955_[redac ted].crash
Dec 27, 2014, 03:17:56 PM /Library/Logs/DiagnosticReports/Kernel_2014-12-27-151756_[redacted].panic [Details]
Dec 26, 2014, 12:21:45 PM /Users/[redacted]/Library/Logs/DiagnosticReports/fontd_2014-12-26-122145_[redac ted].crash
Dec 26, 2014, 12:21:43 PM /Users/[redacted]/Library/Logs/DiagnosticReports/fontd_2014-12-26-122143_[redac ted].crash

Intel iMac - System crashes when switching users

Hi all,
Having a very frustrating problem with my iMac. About 50% of the time, when I use fast user switching to move between accounts, my iMac crashes. The screen goes dark, and advises me that I need to restart. The error also occurs when I log out of an account completely, and log into a different account, again about 50% of the time.
I have restored the computer completely, which is, I'm told, supposed to eliminate any software issues, so am I dealing with a hardware issue here?
I'm at a total loss. Any help would be greatly appreciated.
24'' iMac
Intel Core 2 Duo 2.93GHz
4GB RAM
ATI Radeon HD 4850 512MB Video Card
1 TB HD

HI,
*"The screen goes dark, and advises me that I need to restart. "*
What you are experiencing is called a, "kernel panic". Go here for information to Resolve kernel panics
Also, go to System Preferences/Accounts and make sure there aren't any apps listed there to launch on boot.
While you have the System Preferences/Account pane open make sure Enable fast user switching is selected, then click the gold icon padlock (you will be prompted for the admin password) to lock it and Quit System Preferences.
Carolyn

My 2009 iMac gets stuck on the grey Apple logo when booting up. It boots correctly when in safe mode. I have tried erasing the HD and re-installing from a USB installer. It says the install is complete, but after restarting it gets stuck on the Apple log

My late 2009 27" iMac gets stuck on the grey Apple logo when booting up. It boots correctly when in safe mode. I have tried erasing the HD and re-installing from a USB installer. It says the install is complete, but after restarting it gets stuck on the Apple logo again. This could possibly be an HD failure, but then why does Safe Mode still work and the USB install not work? Any ideas?

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
Don't be put off merely by the seeming complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. All it does is to collect information about the state of the computer. That information goes nowhere unless you choose to share it. However, you should be cautious about running any kind of program (not just a shell script) at the behest of a stranger. If you have doubts, search this site for other discussions in which this procedure has been followed without any report of ill effects. If you can't satisfy yourself that the instructions are safe, don't follow them. Ask for other options.
Here's a summary of what you need to do, if you choose to proceed:
☞ Copy a line of text in this window to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
4. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode, under the conditions in which the problem is reproduced. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
5. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
6. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(Software Hardware Memory Diagnostics Power FireWire Thunderbolt USB Fonts 51 4 1000 25 5120 KiB/s 1024 85 \\b%% 20480 1 MB/s 25000 ports 'com.autodesk.AutoCad com.evenflow.dropbox com.google.GoogleDrive' DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH -86 ` route -n get default|awk '/e:/{print $2}' ` 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB );N5=${#p[@]};p[N5]=` networksetup -listnetworkserviceorder|awk ' NR>1 { sub(/^$[0-9]+$ /,"");n=$0;getline;} $NF=="'${p[26]}')" { sub(/.$/,"",$NF);print n;exit;} ' `;f=('\n%s: %s\n' '\n%s\n\n%s\n' '\nRAM details\n%s\n' %s\ %s '%s\n\t(%s)\n' );S0() { echo ' { q=$NF+0;$NF="";u=$(NF-1);$(NF-1)="";gsub(/^ +| +$/,"");if(q>='${p[$1]}') printf("%s (UID %s) is using %s '${p[$2]}'",$0,u,q);} ';};s=(' /^ *$|CSConfigDot/d;s/^ */ /;s/[-0-9A-Fa-f]{22,}/UUID/g;s/(ochat)\.[^.]+(\..+)/\1\2/;/Shared/!s/\/Users\/[^/]+/~/g ' ' s/^ +//;5p;6p;8p;12p;' ' {sub(/^ +/,"")};NR==6;NR==13&&$2<'${p[10]} ' 1s/://;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: [^EO]|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[11]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ N;/:.+:/d;s/ *://;b0'$'\n'' };/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};$b0'$'\n'' d;:0'$'\n'' x;s/\n\n//;/Apple[ ,]|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' $0&&!/ / { n++;print;} END { if(n<200) print "com.apple.";} ' ' $3~/[0-9]:[0-9]{2}$/ { gsub(/:[0-9:a-f]{14}/,"");} { print|"tail -n'${p[12]}'";} ' ' NR==2&&$4<='${p[13]}' { print $4;} ' ' END { $2/=256;if($2>='${p[15]}') print int($2) } ' ' NR!=13{next};{sub(/[+-]$/,"",$NF)};'"`S0 21 22`" 'NR!=2{next}'"`S0 37 17`" ' NR!=5||$8!~/[RW]/{next};{ $(NF-1)=$1;$NF=int($NF/10000000);for(i=1;i<=3;i++){$i="";$(NF-1-i)="";};};'"`S0 19 20`" 's:^:/:p' '/\.kext\/(Contents\/)?Info\.plist$/p' 's/^.{52}(.+) <.+/\1/p' ' /Launch[AD].+\.plist$/ { n++;print;} END { if(n<200) print "/System/";} ' '/\.xpc\/(Contents\/)?Info\.plist$/p' ' NR>1&&!/0x|\.[0-9]+$|com\.apple\.launchctl\.(Aqua|Background|System)$/ { print $3;} ' ' /\.(framew|lproj)|\):/d;/plist:|:.+(Mach|scrip)/s/:[^:]+//p ' '/root/p' ' !/\/Contents\/.+\/Contents|Applic|Autom|Frameworks/&&/Lib.+\/Info.plist$/ { n++;print;} END { if(n<1000) print "/System/";} ' '/^\/usr\/lib\/.+dylib$/p' ' /Temp|emac/d;/(etc|Preferences)\//s/^\.\/[^/]+//p;' ' /\/(Contents\/.+\/Contents|Frameworks)\/|\.wdgt\/.+\.([bw]|plu)/d;p;' 's/\/(Contents\/)?Info.plist$//;p' ' { gsub("^| ","||kMDItem'${p[35]}'=");sub("^.."," ") };1 ' p '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[9]}'{$2=$2-1;print}' ' BEGIN { i="'${p[26]}'";M1='${p[16]}';M2='${p[18]}';M3='${p[31]}';M4='${p[32]}';} !/^A/ { next;} /%/ { getline;if($5<M1) a="user "$2"%, system "$4"%";} /disk0/&&$4>M2 { b=$3" ops/s, "$4" blocks/s";} $2==i { if(c) { d=$3+$4+$5+$6;next;};if($4>M3||$6>M4) c=int($4/1024)" in, "int($6/1024)" out";} END { if(a) print "CPU: "a;if(b) print "I/O: "b;if(c) print "Net: "c" (KiB/s)";if(d) print "Net errors: "d" packets/s";} ' ' /r\[0\] /&&$NF!~/^1(0|72\.(1[6-9]|2[0-9]|3[0-1])|92\.168)\./ { print $NF;exit;} ' ' !/^T/ { printf "(static)";exit;} ' '/apsd|OpenD/!s/:.+//p' ' (/k:/&&$3!~/(255\.){3}0/ )||(/v6:/&&$2!~/A/ ) ' ' $1~"lR"&&$2<='${p[25]}';$1~"li"&&$3!~"wpa2";' ' BEGIN { FS=":";} { n=split($3,a,".");sub(/_2[01].+/,"",$3);print $2" "$3" "a[n]" "$1;b=b$1;} END { if(b) print("\n\t* Code injection");} ' ' NR!=4{next} {$NF/=10240} '"`S0 27 14`" ' END { if($3~/[0-9]/)print$3;} ' ' BEGIN { L='${p[36]}';} !/^[[:space:]]*(#.*)?$/ { l++;if(l<=L) f=f"\n "$0;} END { F=FILENAME;if(!F) exit;if(!f) f="\n [N/A]";"file -b "F|getline T;if(T!~/^(AS.+ (En.+ )?text$|POSIX sh.+ text ex)/) F=F" ("T")";printf("\nContents of %s\n%s\n",F,f);if(l>L) printf("\n ...and %s more line(s)\n",l-L);} ' ' /^ +[NP].+ =/h;/^( +D.+[{]|[}])/{ g;s/.+= //p;};' ' /^ +B/{ s/.+= |(-[0-9]+)?\.s.+//g;p;} ' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' / /{$0="'"${p[28]}"'"};1;' '/ en/!s/\.//p' ' NR!=13{next};{sub(/[+-M]$/,"",$NF)};'"`S0 39 40`" ' $10~/$L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9;} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?Info\.plist$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' 's/0/Off/p' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps sudo\ crontab sudo\ iotop top pkgutil PlistBuddy whoami cksum kextstat launchctl sudo\ launchctl crontab 'sudo defaults read' stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' defaults\ read scutil sudo\ dtrace sudo\ profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil sudo\ lsof test );c2=(com.apple.loginwindow\ LoginHook '-c Print /L*/P*/loginw*' '-c Print L*/P*/*loginit*' '-c Print L*/Saf*/*/E*.plist' '~ $TMPDIR.. \( -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $' '.??* -path .Trash -prune -o -type d -name *.app -print -prune' '-c Print\ :'${p[35]}' 2>&1' '-c Print\ :Label 2>&1|head -1' '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' "-f'%N: %l' Desktop L*/Keyc*" therm sysload boot-args status " -F '\$Time \$Message' -k Sender kernel -k Message Req 'Beac|caug|dead[^bl]|FAIL|fail|GPU |hfs: Ru|inval|jnl:|last value [1-9]|n Cause: -|NVDA$|pagin|proc: t|Roamed|rror|ssert|Thrott|tim(ed? ?|ing )o|WARN' -k Message Rne 'Goog|ksadm|SMC:' -o -k Sender fseventsd -k Message Req 'SL' " '-du -n DEV -n EDEV 1 10' 'acrx -o comm,ruid,%cpu' '-t1 10 1' '-f -pfc /var/db/r*/com.apple.*.{BS,Bas,Es,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cgh] ! -name *ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true $ -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '-L {/{S*/,},}L*/Lau* -type f' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' '-L /S*/L*/{C*/Sec*A,E}* {/,}L*/{A*d,Ca*/*/Ex,Compon,Ex,In,iTu,Keyb,Mail/B,P*P,Qu*T,Scripti,Sec,Servi,Spo,Widg}* -type f -name Info.plist' '/usr/lib -type f -name *.dylib' `awk "${s[31]}"<<<${p[23]}` "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,pam.d,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -getdnsservers\ "${p[N5]}" -getinfo\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --only-files --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' -i4TCP:0-1023 com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' );N1=${#c2[@]};for j in {0..8};do c2[N1+j]=SP${p[j]}DataType;done;N2=${#c2[@]};for j in 0 1;do c2[N2+j]="-n ' syscall::'${p[33+j]}':return { @out[execname,uid]=sum(arg0) } tick-10sec { trunc(@out,1);exit(0);} '";done;l=(Restricted\ files Hidden\ apps 'Elapsed time (s)' POST Battery Safari\ extensions Bad\ plists 'High file counts' User Heat System\ load boot\ args FileVault Diagnostic\ reports Log 'Free space (MiB)' 'Swap (MiB)' Activity 'CPU per process' Login\ hook 'I/O per process' Mach\ ports kexts Daemons Agents launchd Startup\ items Admin\ access Root\ access Bundles dylibs Apps Font\ issues Inserted\ dylibs Firewall Proxies DNS TCP/IP Wi-Fi Profiles Root\ crontab User\ crontab 'Global login items' 'User login items' Spotlight Memory Listeners Widgets Parental\ Controls Prefetching );N3=${#l[@]};for i in 0 1 2;do l[N3+i]=${p[5+i]};done;N4=${#l[@]};for j in 0 1;do l[N4+j]="Current ${p[29+j]}stream data";done;A0() { id -G|grep -qw 80;v[1]=$?;((v[1]==0))&&sudo true;v[2]=$?;v[3]=`date +%s`;clear >&-;date '+Start time: %T %D%n';};for i in 0 1;do eval ' A'$((1+i))'() { v=` eval "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};A'$((3+i))'() { v=` while read i;do [[ "$i" ]]&&eval "${c1[$1]} ${c2[$2]}" \"$i\"|'${c1[30+i]}' "${s[$3]}";done<<<"${v[$4]}" `;[[ "$v" ]];};A'$((5+i))'() { v=` while read i;do '${c1[30+i]}' "${s[$1]}" "$i";done<<<"${v[$2]}" `;[[ "$v" ]];};';done;A7(){ v=$((`date +%s`-v[3]));};B2(){ v[$1]="$v";};for i in 0 1;do eval ' B'$i'() { v=;((v['$((i+1))']==0))||{ v=No;false;};};B'$((3+i))'() { v[$2]=`'${c1[30+i]}' "${s[$3]}"<<<"${v[$1]}"`;} ';done;B5(){ v[$1]="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d: <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F: ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`grep -Fv "${v[$1]}"<<<"$v"`;};C0(){ [[ "$v" ]]&&echo "$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "$s"<<<"$v"`&&C1 1 $1;};for i in 1 2;do for j in 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;{ A0;A2 0 $((N1+1)) 2;C0;A1 0 $N1 1;C0;B0;C2 27;B0&&! B1&&C2 28;D12 15 37 25 8;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D23 0 $((N1+4)) 5 4;for i in 0 1 2;do D13 0 $((N1+5+i)) 6 $((N3+i));done;D13 1 10 7 9;D13 1 11 8 10;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 14 12 14;D22 6 36 13 15;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D22 11 17 17 20;for i in 0 1;do D22 28 $((N2+i)) 45 $((N4+i));done;};D22 12 44 54 45;D22 12 39 15 21;A1 13 40 18;B2 4;B3 4 0 19;A3 14 6 32 0;B4 0 5 11;A1 17 41 20;B7 5;C3 22;B4 4 6 21;A3 14 7 32 6;B4 0 7 11;B3 4 0 22;A3 14 6 32 0;B4 0 8 11;B5 7 8;B1&&{ A2 19 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;A2 4 20 21;B7 6;B2 9;A4 14 7 52 9;B2 10;B6 9 10 4;C3 25;D13 4 21 24 26;B4 4 12 26;B3 4 13 27;A1 4 22 29;B7 12;B2 14;A4 14 6 52 14;B2 15;B6 14 15 4;B3 0 0 30;C3 29;A1 4 23 27;B7 13;C3 30;D13 24 24 32 31;D13 25 37 32 33;A1 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D13 21 0 32 19;D13 10 42 32 40;D22 29 35 46 39;};D23 14 1 48 42;D12 34 43 53 44;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 26 28 35 34;D13 27 29 36 35;A2 27 32 39&&{ B2 19;A2 33 33 40;B2 20;B6 19 20 3;};C2 36;D23 33 34 42 37;B1&&D23 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 20 42 32 41;D13 14 2 48 43;D13 4 5 32 1;D22 4 4 50 0;D13 14 3 49 5;D12 26 48 59 49;B3 4 22 57;A1 26 46 56;B7 22;B3 0 0 58;C3 47;D23 22 9 37 7;A7;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
7. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
8. If you see an error message in the Terminal window such as "syntax error," enter
exec bash
and press return. Then paste the script again.
9. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
10. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
[Process completed]
to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report the results. No harm will be done.
11. When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
At the top of the results, there will be a line that begins with "Model Identifier." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
12. When you post the results, you might see the message, "You have included content in your post that is not permitted." It means that the forum software has misidentified something in the post as a violation of the rules. If that happens, please post the test results on Pastebin, then post a link here to the page you created.
Note: This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
Copyright © 2014 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

I have recently upgraded my iMac Intel G5 iSight to OS 10.6.8 and now the internal mic does not work with skype or facebook. I can here static when playing back clips. Do I need to update firmware or reload old sys parts

I have recently upgraded my iMac Intel G5 iSight (iMac5,1) to OS 10.6.8 and now the internal mic does not work with skype or facebook. I can here static when playing back clips. Do I need to update firmware or reload old system parts. I have zapped PRAM. The blue indicator in system audio panel will appear for a second as I slide the bar for internal mic but then it disappears. Is there a fix?

The sound seems very faint but can here static on playback.

Imac (intel) flickers when booting up

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