PowerMac G5 will ONLY boot up when the side panel is removed

Hi,
We have a PowerMac G5 Dual 2.5GHZ . This mac will ONLY boot up when the side panel and the clear plastic panel are removed. If the Mac is assembled, the Mac will start and Chime, but thats it. No display and the fans are dead quite. Any Suggestions? Thanks in advance

Hi, I realised that this problem has ONLY occured AFTER I installed Leopard. I then reformated the hard drive and installed 10.34 ( the OS that came with the G5) and it is as good as gold. I then reformated the hard drive and installed Leopard. After a few minutes the G5 became noisy and unstable. I then reformatted the hard drive AGAIN and reinstalled 10.34 and it stable. How can I install Leopard without the machine behaving erratic? Thanks for any advice in advance

Similar Messages

K9n2 sli platinum will only boot/post when running single channel

Hey
I am having problems with the rig when i want memory to run Dual channel.
I have tried all bios settings (or at least i think so) and all memory slot combination (or at least i think so) without any luck.
When i put 2 sticks in dimm 1+2 I get nothing but a black screen.
When I then turn my pc off, putting 1 stick in dimm 1 it will boot and I get the message: DQS training failed on previous boot.
Mainboard: MSI K9N2 Sli platinum
CPU: AMD 5600X2 Windsor 2x1mb cache
HD: have tried with WD 250gb and hitachi 160gb sata2
Psu: Have tried with OCZ 500W and corsair 620W
Memory: Have tried with kingston pc5400 and Adata pc6400 both 1gb sticks
GFX: Have tried with GF8800GTS, ATI 1800XT and GF8500GT
CPU cooler: CM Gemini2
Motherboard have BIOS 3.1 ( so there should be no problem with running the cpu)
everything except for mainboard have been testet with other gear and is working 100%
Memory passed memtest with no errors.
Some facts
1 stick in dimm 1 = boot/post single channel
1 stick in dimm 2 = black screen.
1 stick in dimm 3 = boot/post single channel
1 stick in dimm 4 = black screen
1 stick in dimm 1 + 2 = black screen.
1 stick in dimm 1 + 3 = boot/post single channel
1 stck in dimm 2 + 4 black screen
1 stckk in dimm 3 + 4 black screen.
1 stick in 1 + 4 = Boot/postor black screen..cant remember but for sure not dual.
1 stick in 2 + 3 = boot/post or black screen..cant remember but for sure not dual
I have tried:
manual timming settings, both recommended and lower timmings.
Auto timmings
More volt to memory
More volt to cpu
Tried 800, 667, 553 and 400mhz
Tried sli memory disabled and enabled
Changing cpu ratio
Tried T2 and T1
Have tried load default settings
load optimized settings
everything on auto
well, that’s just about it and don’t know what to try next.
So if anybody have some input I would really appreciate it.
Regards
Jesper

Have you done that?:
Quote from: Stu on 13-September-09, 02:54:40
Have you tried taking the board out of the case and setting up outside on a flat anti-static surface? Maybe there is something shorting the back of the board where the DIMM slot is.
If no change:
Leave just one memory stick in 1st DIMM close to CPU socket,
ensure that system is stable the flash to the latest BIOS ==>
http://eu.msi.com/index.php?func=downloaddetail&type=bios&maincat_no=1&prod_no=1443
You can >>Use the MSI HQ Forum USB flasher<<
Once done re-test.

My presario b1900 only boots normally when a screen lid closed

Hi im a compaq presario b1900 user and suddenly started to have a booting problem since i mistakenly closed the laptop lid in full while booting and opened it up right after.
Then, my laptop only boots perfectly when the lid is almost closed under rougly 30 degrees - whenever i switch on my laptop with the screen lid open, it shuts down after 2 secs and automatically reboots, but then shuts down again ,and on and on.
But after once it goes into window, it works perfectly with the lid open and works well as log-on and off at standby mode.
It only shows a problem when booting after powered on.
is it because my HDD got damaged from a sudden screen lid close??
Or should i change HDD or is it a window issue??

Thank you so much for replying; unfortunately, my screen had already gone gray by the time I read your reply and I had to take in to the Genius Bar. My laptop's up and running, but the main problem is still unknown and I'll have to buy a new one soon. Thanks again!

Qosmio X305 will only boot in safe mode or when the graphics card disabled

Hi All
I am having a very concerning issue with my laptop (Toshiba Qosmio X305). It will only boot in safe mode or if I disable the graphics card.
Awhile back I upgraded the drivers for the nVidia 9800M GTX from the nVidia website, it worked fine for awhile, but then it started crashing randomly by giving me a full screen of random color then switching off. I fixed this by rolling back to the previous version of the drivers (the drivers that came with the laptop software).
After that it working perfectly for months but yesterday my machine started crashing and I could not get it to boot correctly.
I have completely deleted (not just a quick format) both the hard drives that came internally in the laptop and I have installed a clean version (the out of the box option) of the x64 Vista that came with the laptop from the recovery disks I created. After I did the install, it boots fine as only the standard VGA device is used, as soon as I installed the driver off the drivers and applications disk it would not boot correctly:
Just after the status bar comes up and it is about to show the windows logo, just before login, I get a black screen. I can hear that it is booting fine and I can even log in to windows and by memory make things run, but I can't see anything. I then got the latest drivers, again from the nVidia website and they are not helping at all.
My system is as follows (nothing has been added, its is just how I got it):
Vista Ultimate x64
4.00 GB RAM
Intel Core 2 Quad
Like I said previously it is a clean install of the operating system, I have not added any programs, except for installing and then updating the display drivers.
Any help would be much appreciated!

Hi buddy,
It seems that this is a typical example, that only pretested display drivers from Toshiba should be used. Why?
The nVidia drivers are not pretested and they dont have an overheat protection. So for me it sounds like that the nVidia driver has destroyed your graphic card. That means no driver will help you and reinstallation of the whole system too.
I think the only option is replacing the graphic card. Therefore you should contact an authorized service provider in your country. Here you can search:
http://www.csd.toshiba.com
Explain the whole story and then you will see, what the technicians say. If your notebook is under warranty, hopefully this will be covered too. Normally other display drivers you have to install on your own risk
Good luck! :)

I am using an iPad and iPhone and have exchange as my email. Both will only collect mails when I am in the wifi of the office, and not when I am out and about. I can't seem to get a fix for it.

I am using an iPad and iPhone and have exchange as my email. Both will only collect mails when I am in the wifi of the office, and not when I am out and about. I can't seem to get a fix for it.

This - https://support.mozilla.org/en-US/kb/how-make-web-links-open-firefox-default - didn't work?

Is it dead? will only boot off the OS disc or in safe mode.

Hi there!
Is it dead? will only boot off the OS disc or in safe mode.
My MBP (March 09) running 10.6 Snow Leopard is playing up.
After a frustrating day of troubleshooting, I don't know what else to do.
So far:
Duplicate accounts deleted.
Permissions repaired and verified
Renistalled the OS from disc
Haven't been able to log in to OS since,
- can only boot in safe mode or OS istall disc to use Utility
Disk Utility used in safe mode, disk utility > verify disk, said to repair it from disc boot
Disk repaired
Still won't reboot out of safe mode - it gets past the blue screen to the desktop wallpaper screen, but the dock or items on my desktop won't appear, colour dial spins, i think the longest i've given it is 20 minutes
Still won't boot other than in safe mode (currently using it right now)
Did the whole /sbin/fsck -fy,
Invalid file count (Is 484158 instead of 484160)
Invalid volume directory count (is 157609 instead of 157807)
Repairs successful
Ran fsck again, and HD OK message
Ran exit and it won't boot, only in safe mode again, and to the spinning wheel on the desktop wallpaper screen.
Is my HD cactus?
Is this something that can be replaced?
If not, what next?
I'm a little apprehensive about sending it out to get fixed (it's out of three year warrnaty) and I'm not sure how much more they can do/check than I've already done and come to the same conclusion.
Any help, much appreciated and thank you in advance
Bree.

Are you referring to the new bluetooth (wireless) keyboard or are you using a wired version?
Message was edited by: Barbara Daniels1

Photos in my from my iPhone have same numbering as photos from my dig camera. They all go into iPhoto fine but when I backup to my ext hard drive it will only save one with the name IMG 1002 and I have two separate images both with that name. Help?

Photos in my from my iPhone have the same numbering as photos from my digital camera. They all go into iPhoto fine but when I backup to my ext hard drive it will only save one with the name IMG 1002 and I have two separate images both with that name. How do I get them all to save on my ext hard drive and hope do I prevent this numbering overlap in the future? I'm really hoping I don't have to go through and manually rename every single picture. Thanks.

How are you backing up the photos? The best way is to backup the library itself as that will preserve your organizational efforts as well as all metadata like keywords, titles, faces, places, books, etc.
You can use a backup application that does incremental backups. Thus only the first backup is a full one and subsequent backups just copy those files that are new or changed. I use Synk Pro. The lower cost version, Synk, will do the same job. Other similar apps can be found at MacUpdate.com.
OR: upload your camera to a folder on the Desktop. There you can rename the files to something that is more informative than just the file name. I use the date (international format) along with a brief desc: 2007-1-20-adian1stbday-001.jpg. File renaming apps can also be found at MacUpdate.com. Also you can give the folder an informatve name which will become the Event name when you import the folder of photos into iPhoto.
OT

I am using FC Express HD, and for some reason, when I export a Quicktime movie, the final movie will only play audio, and the video is black. I only get the actual video if I export as self contained, or if I exportusing quicktime conversion. Why?

I am using FC Express HD, and for some reason, when I export a Quicktime movie, the final movie will only play audio, and the video is black. I only get the actual video if I export as self contained, or if I exportusing quicktime conversion. Why?

I am using FC Express HD, and for some reason, when I export a Quicktime movie, the final movie will only play audio, and the video is black. I only get the actual video if I export as self contained, or if I exportusing quicktime conversion. Why?

On a IPad is there a restriction to the number of emails it access? Say there's 100 messages in my inbox but when I look at my inbox on my Ipad it will only show 50 of the most recent emails. Is there a way to see all 100?

Say there's 300 messages in my inbox but when I look at my inbox on my Ipad it will only show 200 of the most recent emails. Is there a way to see all 300?

Not sure whether you are saying that you have more than 200 emails in your Inbox, or that 200 are in the Inbox and the others are in other folders. If the first then (I don't have more than 200 emails in my Inbox) but if you do and want to load more then do you not get a Load More Messages option if you scroll down to the bottom of your Inbox ?
If you want to be able to search multiple email folders then I don't think that you can do it within the Mail app itself, but the spotlight search screen (swipe your first homescreen to the right) can - you can control what is searched by spotlight via Settings > General > Spotlight Search

My macbook pro will only boot in safe mode

Hey,
I have a macbook pro 15-inch, Early 2011 running osx 10.9.4. I have a SSD hard drive that i installed myself a year ago and hasn't shown any defects. Its a 120 gb OCZ-AGILITY3.
My problem:
My macbook will only boot in safe mode nowadays. I have done a complete erasion of my hard drive and installed osx mavericks twice already. After the installation the computer will safely go to the desktop. But if i then do a reboot it won't get further than after the first apple logo, sometime the turning wheel will pop up, before turning off and trying again. i have tried resetting PRAM, I have tried resetting SMC, i have tried avoiding SMC (with big fan rate), but all with no success.
I have done a complete hardware test (the longer one) and it showed "no troubles found".
My guess is that the problem is with the battery. My computer won't run anymore without the adapter, when i pull the adapter out it either stays on for a while before just turning off. Without having it plugged in it won't start. Is it possible that during normal start up there is some kind of communication with the battery that can cause this?
I ran a diagnostic shown in this thread (Will only boot in safe mode) and included it in this post.
Hope someone can help me out.
Thanks,
Bram
Start time: 17:07:42 08/25/14
Model Identifier: MacBookPro8,2
System Version: OS X 10.9.4 (13E28)
Kernel Version: Darwin 13.3.0
Boot Mode: Safe
Time since boot: 10 minutes
Battery
Condition: Replace Now
Diagnostic reports
2014-08-25 UserEventAgent crash
Log
Aug 26 00:41:52 Previous Shutdown Cause: -128
Aug 25 16:23:38 smb1_treeconnect_internal: Malformed tree connect with a bad word count! wc= 2
Aug 25 16:24:05 process rpcsvchost[94] thread 917 caught burning CPU! It used more than 50% CPU (Actual recent usage: 99%) over 180 seconds. thread lifetime cpu usage 100.014147 seconds, (82.533432 user, 17.480715 system) ledger info: balance: 90006319931 credit: 100003230498 debit: 9996910567 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 90079246240
Aug 25 16:25:50 smb1_treeconnect_internal: Malformed tree connect with a bad word count! wc= 2
Aug 25 16:58:05 jnl: b(1, 3): replay_journal: from: 9340928 to: 9773056 (joffset 0x37a000)
Aug 25 16:58:05 jnl: b(1, 3): examining extra transactions starting @ 9773056 / 0x952000
Aug 25 16:58:05 jnl: b(1, 3): txn starting at 9773056 (9773056) @ index 80 bnum 2696544 (8192) with disk cksum != blhdr cksum (0x93b69228 0xc647562)
Aug 25 16:58:05 jnl: 0x662b0000 0x451b0000 0x2a0001ff 0x40000000 0xd7330300 0x46001d00 0x6c006f00 0x65006400
Aug 25 16:58:05 jnl: b(1, 3): restarting journal replay (9340928 - 9773056)!
Aug 25 16:58:05 jnl: b(1, 3): replay_journal: from: 9340928 to: 9773056 (joffset 0x37a000)
Aug 25 16:58:05 jnl: b(1, 3): journal replay done.
Aug 25 16:58:06 Previous Shutdown Cause: -128
Aug 25 16:59:26 smb1_treeconnect_internal: Malformed tree connect with a bad word count! wc= 2
Aug 25 16:59:59 smb1_treeconnect_internal: Malformed tree connect with a bad word count! wc= 2
Activity
CPU: user 17%, system 4%
CPU per process: WindowServer (UID 0) is using 30.5 %
launchd
/System/Library/LaunchAgents/com.apple.AirPortBaseStationAgent.plist
- com.apple.AirPortBaseStationAgent
Contents of /System/Library/LaunchAgents/com.apple.AirPortBaseStationAgent.plist (XML document text)
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.apple.AirPortBaseStationAgent</string>
<key>EnableTransactions</key>
<true/>
<key>LowPriorityIO</key>
<true/>
<key>LimitLoadToSessionType</key>
<string>Aqua</string>
<key>POSIXSpawnType</key>
<string>Background</string>
<key>LaunchEvents</key>
<dict>
<key>com.apple.distnoted.matching</key>
<dict>
<key>com.apple.airport.agent.prefschanged</key>
<dict>
<key>Name</key>
<string>com.apple.airport.agent</string>
</dict>
</dict>
<key>com.apple.bonjour.events</key>
...and 21 more line(s)
Spotlight: Indexing and searching disabled
Font issues: 11
Wi-Fi
link auth: wpa-psk
Restricted files: 1
Elapsed time (s): 278

Actually it sometimes gets a little further, the display will dim and the pointer will appear and then whoop it will turn off. if i do a verbose start up, it will finish all the steps, the white screen will appear and dim and then it will turn off.

24" iMac will only boot in safe mode

Here is the short version:
I have a 24" iMac Core 2 2.16 GHZ with Lion installed (has been for a long time). It will only boot successfully in safe mode. The AHT Extended tests do not report any problems. I have reset PRAM and SMC. Nothing helps. Normal boot process will get to the point where it switches from the Apple logo with spinning wheel to where it would normally switch the OSX GUI and login screen. Instead the screen is all white or gray. The exact same problem happens if I try to boot from an OSX Install DVD or USB and also my DiskWarrior DVD. Since safe mode works, my guess is that the problem is with the video card and the normal color depth that the Mac boots to. In Safe Mode it is in reduced colors.
Since safe mode works, I have all of my data backed up to an external drive. If I could boot from an install disk, I would have already wiped the disk and done a new install, but I cannot do this! I am assuming this is a hardware problem and given the age of this iMac I am out of luck. I ordered a new system last night, but if it is possible to get this one working again, I would like to be able to give it to a relative who could use it. So if anyone has any ideas, it would be appreciated.
Just slightly longer version:
Been using this system since 2007. Used to use it for work, now it is the home media hub where we sync our iOS devices. It has had Lion installed for probably a year now and has always worked great. A few weeks ago, it started locking up whenever my son was playing Minecraft. I would have to power off the system to get it back. I assumed it was a Java problem. I tried fixing disk permissions etc. but nothing solved it. Anyway, last week I was downloading App updates in iTunes when the system locked up again. The mouse would move around but I could not Force Quit anything or really do anything. So I had to power off the system. That is when the boot problems started. Since that happened, the system has not come back with a normal boot.
Thanks for any ideas/help. If someone thinks this is fixable, I can bring it to my local Apple service dealer. I do not want to pay them $100 just to have them tell me it cannot be fixed or needs a new logic board or something like that which would not be worth buying.
Mark

Please read this whole message before doing anything.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software — potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions — they’re easy to carry out and won’t change anything on your Mac.
These steps are to be taken while booted in safe mode.
Below are instructions to enter some UNIX shell commands. The commands are harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects.
The commands may line-wrap or scroll in your browser, but each one is really just a single line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then either copy or drag it. The headings “Step 1” and so on are not part of the commands.
Launch the 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.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” and press return. You should then get a new line ending in a dollar sign.
Step 1
Triple-click the line of text below to select it. Copy the selected text to the Clipboard (command-C). Then click anywhere in the Terminal window and paste (command-V).
find /Sy*/L*/Ex* -type f -name Info.plist -exec sh -c '/usr/libexec/PlistBuddy -c "Print :CFBundleIdentifier" "$1" 2> /dev/null | egrep -qv "apple|Accusys|ArcMSR|ATTO|CalDigit|HighPoint|hp-fax|JMicron|print|SoftRAID|stex" && echo ${1%*.kext/*}.kext' {} {} \;
Post the lines of output (if any) that appear below what you just entered (the text, please, not a screenshot.) You can omit the final line ending in “$”.
Step 2
Repeat with this line:
ls -1A /e*/mach* {,/}L*/{Ad,Compon,Ex,Fram,In,Keyb,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Spo,Sta}* L*/Fonts 2> /dev/null
Important: If you formerly synchronized with a MobileMe account, your me.com email address may appear in the output of the above command. If so, anonymize it before posting.
Step 3
osascript -e 'tell application "System Events" to get name of every login item' 2> /dev/null
Remember, these steps are all copy-and-paste — no typing. Also remember to post the output.
You can then quit Terminal.

My 2011 IMac will not boot up past the White apple logo screen with the whirly circle

My 2011 IMac will not boot up past the White apple logo screen with the whirly circle. I have tried various commands but to no avail. does anybody have any advice?

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 startup failure is to secure the 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 the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from 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.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start 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.
d. 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
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up 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.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start 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 the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up 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, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup 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 restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the 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 restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) 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 startup 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 13
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.

My computer will only boot off it's drive in safe mode

Short Story...
My computer will only boot in safe mode and in normal mode displays grey apple that turns into a grey cross. Surface scan in techtool pro 4.5.1 passed
Long Story... (all the issues I've had as they are all back to back and most likely cause by what sloved the previous one).
When i first got my macbook i already had a 500gb hdd in my macmini running 10.6 (or 10.6.1 I forget) and as soon as a had the macbook running off this drive it would give me one error for each and every movie file that was visible (in an open folder or on the desktop) saying quick look helper had unexpectedly quit. I tried everything and for some reason ended up changing all the permissions on the computer which royally screwed it up. anyway after repairing permissions in disk utility the error messages stopped but shortly after start up it was giving me a couple of dozen error messages saying something about .kext's (if requested i can supply full text of this error message) so i tried reinstalling the OS and since in 10.6 there is no archive and install (without messing around in terminal) i just ran the snow leopard disc which brought me back to 10.6 then I upgraded to 10.6.2 and restarting a couple of times over a day or so. After a few restarts I found the computer wouldn't start (it chimed, loaded up the apple symbol and loading wheel and then after a few minutes replaced the apple symbol with a crossed circle) I tried running the snow leopard disc again and this time not upgrading but after about 3 restarts the same thing happened. now i can only start up in safe boot mode or off my backup drive which still displays a few dozen of the .kext errors at start up. Sorry about the length of this description I would appreciate absolutely any help or ideas.

Tezz wrote:
Short Story...
My computer will only boot in safe mode and in normal mode displays grey apple that turns into a grey cross. Surface scan in techtool pro 4.5.1 passed
I would try troubleshooting your problem [using the steps given by Apple here|http://support.apple.com/kb/TS1892].

My iMacG5 will only boot to white screen, gray apple and spinning gear. Help?

My iMacG5 will only boot to white screen, gray apple and spinning gear. Help?
Also not totally sure if it's an Intel based computer, but that's what I recall. Any way to check, since I can't get to About This Mac window?
It's running on OSX Leopard 10.5.4
First symptom = running slowly - then it kind of froze with color wheel spinning - thought a forced shut down would help - help power button til off, then white screen, gray apple and spinning gear.
Have tried...
1. Turn off the computer by choosing Shut Down from the Apple menu, or by holding the power button until the computer turns off.
2. Unplug all cables from the computer, including the power cord.
3. Wait 10 seconds.
4. Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer.
5. Let go of the power button.
6. Press the power button once more to start up your iMac.
Then try booting from your install disc again.
- No change
And...
Booting From An OS X Installer Disc
1. Insert OS X Installer Disc into the optical drive.
2. Restart the computer.
3. Immediately after the chime press and hold down the "C" key.
4. Release the key when the spinning gear below the dark gray Apple logo
appears.
5. Wait for installer to finish loading.
- The fan just got louder.
Thanks for your help.

You need to do an Erase and Install or an Archive and Install depending on whether the hard drive is OK or needs to be reformatted.
Start by booting from your Leopard DVD. The rest is just following directions.
How to Perform an Archive and Install
An Archive and Install will NOT erase your hard drive, but you must have sufficient free space for a second OS X installation which could be from 3-9 GBs depending upon the version of OS X and selected installation options. The free space requirement is over and above normal free space requirements which should be at least 6-10 GBs. Read all the linked references carefully before proceeding.
1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
Repairing the Hard Drive and Permissions
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 Installer menu (Utilities menu for Tiger, Leopard or Snow Leopard.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Do not proceed with an Archive and Install if DU reports errors it cannot fix. In that case use Disk Warrior and/or TechTool Pro to repair the hard drive. If neither can repair the drive, then you will have to erase the drive and reinstall from scratch.
3. Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When you reach the screen to select a destination drive click once on the destination drive then click on the Option button. Select the Archive and Install option. You have an option to preserve users and network preferences. Only select this option if you are sure you have no corrupted files in your user accounts. Otherwise leave this option unchecked. Click on the OK button and continue with the OS X Installation.
4. Upon completion of the Archive and Install you will have a Previous System Folder in the root directory. You should retain the PSF until you are sure you do not need to manually transfer any items from the PSF to your newly installed system.
5. After moving any items you want to keep from the PSF you should delete it. You can back it up if you prefer, but you must delete it from the hard drive.
6. You can now download a Combo Updater directly from Apple's download site to update your new system to the desired version as well as install any security or other updates. You can also do this using Software Update.

Will only boot to a circle with a slash

MacBook Pro will only boot to the circle with a slash symbol. I have tried all the turn on hold C, X, Option key suggestions and have tried the clearing ideas (hold cntl, commmd, p, r). Have put the system disk in to boot from that, now I cannot get the disk out.
Any suggestions out there?

Your computer is not recognizing your hard drive. Plug a mouse in and hold the mouse key down when booting. The disc should eject. Next, make sure the disc is real clean with no finger prints or scratches on it. Then try booting from it again (by holding the "C" key down) when booting. See if your Disk Utility sees the drive and run that. If it does not, or the unit will not boot from the install disc, then you have a serious problem--possibly logic board-related. You could also try running DiskWarrior and see if that will boot and repair the drive.
Dave M.
MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG

PowerMac G5 will ONLY boot up when the side panel is removed

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