Intel Mini starts fine, but won't Restart after serious upgrades

Experienced Mac user, but stumped with this one:
Picked up a fairly cheap Intel Mini Core Duo to use as a HTPC.
Upgraded the CPU to a T7400 Core 2 Duo, removed the internal SATA drive and added an external 1TB SATA drive in a NewerTech V3 Stacker case as the primary drive for the machine. Installed Leopard, which went fine. Machine has 2GB RAM and boots up just fine. *All is good, except that the machine won't Restart. Starts just fine. Shuts down just fine. But it won't restart.*
I've attempted to zap the PRAM using the old Command-Option-P-R, but all I get is one chime; it won't cycle through multiple times. I've tried resetting the PMU (using the remove cables/wait/insert power cable while pressing power button/press power button again method, but there is no change in the restart behavior. So I'm stumped and could use some suggestions for other things to try.
Anyone on here done any similar upgrades and/or seen similar behavior? Did I forget to reconnect a wire somewhere? If I crack the case again, is there a manual reset I can perform on the PMU? BTW, the behavior is the same regardless of whether the HDD is connected.
TIA,
mosk
Message was edited by: mosk

Thanks, tried that (and tried it with the CMOS battery removed), and it didn't solve the problem. I'm stumped. I've tried resetting the SMC, which also had no effect on the problem. If I try to zap the PRAM using the traditional four key chord, it will shutdown (with power light still on) but won't reboot. Same if I choose Restart form the Apple menu: it gets the job half done, but won't reboot. So it seems to be a very specific failure: something in the Restart sequence is hanging up, while the Start and Shutdown sequences work fine.
A puzzler...

Similar Messages

G5 Xserver won't restart after security upgrade

I recently installed a security upgrade on my server. Stupid me, I didn't back up the server (no problems before, right?). Rebooted the server, and now it won't boot up. Here's what I've tried...
1. Starting in Firewire Disk Mode - won't work, I have an a Apple Raid card installed.
2. Tried restarting from Install cds.
OK, here's another problem. My server is headless. So I go to the local CompUSA and buy an ATI Radeon 7000 - cheap PCI video card, should work with my Mac, right? Nope.
Then I head to Fry's and purchase an ATI Radeo 9250. I know they make a Mac model (9200), so this should work, right? Arggghhh, nope. Guess I'll have to buy the Mac Edition. But I thought I'd try the discussion boards one more time...
Even so, I reviewed the "Headless Installation" instructions, but it doesn't show up as having the install disk inserted.
3. Tried connecting my MacBook Pro via firewire and try to Apple Desktop Remote In - no luck.
4. Try to SSH in - says Host is Down.
Now, this server isn't really mission-critical, so losing everything doesn't overly bother me, but I really want to save this if I can. In the past, I've found I've learned a lot when these things happen.
G5 XServe Mac OS X (10.4.8)

Brent,
It might not be the security update that hosed your server, but instead might have been the Apple Hardware RAID card. I troubleshot a difficult-to-find bug on our Xserve G5 when it was being tested prior to deployment, and the problem turned out to be the Apple Hardware RAID card. Turns out, there is a bug in the firmware whereby the Apple Hardware RAID sometimes disconnects from the drives during graceful power down (but not on a restart) before it has finished fully flushing the write caches. LSI Logic fixed this bug in subsequent firmware that only works on their Windows version of the card (the Apple Hardware RAID card is a rebranded LSI Logic megaraid card); Apple split their code off the LSI code tree prior to this fix, and hasn't updated their version of the firmware that was created for the Xserve version of the card.
Causes mystery garbage blocks from space. Only workaround that I know is to turn off the write caches for all LUNs on the Apple Hardware RAID card.
I turned in a RADAR report (RADAR Problem ID 4350243) back in November 2005, and I keep following up every four or so months, no progress, and I never get any feedback from Apple except a report that the bug is still open. I don't expect this bug to ever be fixed because the Xserve G5 is EOL, as is the Apple Hardware RAID card.
So, if you happened to shut your server down rather than restart, you could have some garbage somewhere on your disks because of this bug.
Good luck.
Russ
Xserve G5 2.0 GHz 2 GB RAM Mac OS X (10.4.8) Apple Hardware RAID, ATTO UL4D, Exabyte VXA-2 1x10 1u

OS-X won't restart after iTunes upgrade

Installed the upgrade of iTunes and QT7 last night and now on re boot my system freezes while in the "loading OSX" screen (reminiscent of Windows blue screen of death >:O), and I have to hold to power button to shutdown the system.
Haven't seen anyone else experiencing this issue yet with the iTunes upgrade.....suggestions?

Grant,
Initially this didn't work (at least not by itself).
Disk repair came back with no errors, with repair permissions reporting several. Upon re-booting, the system froze at the same spot and had to be hard booted to get out of its' locked state.
I had read other threads about people not being able to re-boot after upgrading iTunes, if they had USB peripherals attached. I figured WTH, and disconnected everything but Mouse and Keyboard and did another re-boot and "Whalla!".
I have yet to try it again with all my "stuff" connected to the iMac, so it still is unclear if the disk utilities took care of the problem, or if it was unplugging some of the devices connected. I'll test that this weekend when I have time to trouble shoot the system if it crashes again.
Thanks for your assistance!
B

My ipad will not sync or back-up and thus cannot install OS5, it starts fine, but then says "cannot verify applications" and stops sync. Can someone help me?

my ipad will not sync or back-up and thus cannot install OS5, it starts fine, but then says "cannot verify applications" and stops sync. Can someone help me?

going to "transfer purchases' does work - however the thermometer bar at the bottom reflecting apps, music, video, book, etc cpapcity fraks out, sliding left to right maybe 4 or 5 times during the process. Have you ever seen this?
After it is finished, the SYNC button is not longer darkened - so I thought it was safe to attampt an upgrade to OS05... which i am doing now... takes maybe 20 mins and then I normally get the error "the applications on this ipad cannot be verified" and the bottom thermometer bar zeros out all by my music. The content and apps are all fine on teh ipad. so strange. I made an appointment with customer service tomrrow AM - but i do not think i should have to pay for this - i have never even used support before!
I will update if it works - or re[eats the strange pattern again and does not update.
Thanks for your time and help!

TS1538 Running Windows XP,Ipod Mini works fine,but Ipod Nano visible in Windows,but not Itunes.Have loaded latest version of ITunes.How do I prceed

Am running Windows XP pro,Ipod Mini works fine,but Ipod Nano is visible in my computer as a mass storage device,but not in Itunes.The settings on the Ipod says Version 1.0.2 Mac.Have tried all the trouble shooting solutions under Itunes help,but no success.Is it a problem with the Ipod or my Windows computer?Please help.Thanks Marcus.

http://support.apple.com/kb/TS1363

I am trying to transfer my upgrade to my second line. When I try to order any other phone it works fine, but won't work to upgrade to Iphone 6

I am trying to transfer my upgrade to my second line. When I try to order any other phone it works fine, but won't work to upgrade to Iphone 6

TWRING,
Help has arrived! Since the device is currently on pre-order when processing the order online it will only recognize the line eligible. Once you receive the device you may activate it on another line if needed.
EfrainM_VZW
Follow us on Twitter @VZWSupport

My MacBook Pro won't restart after updating iTunes, and so the update doesn't work. I have just purchased an iPad mini and can't sync it - can anyone help?

My MacBook Pro won't restart after updating iTunes, and so the update doesn't work. I have just purchased an iPad mini and can't sync it - can anyone help

Press and hold power button for up to 30 seconds. Remove battery and reinsert then repeat.

I use 1 Icloud account with 2 devise but the other devise arrest out mine, than my devise was not able to connect to itune anymore. My devise still can swich on but it always restart after afew seconds. So can it fix ?

I use 1 Icloud account with 2 devise but the other devise arrest out my devise throue find my iphone, than my devise was not able to connect to itune anymore. My devise still can swich on but it always restart after afew seconds. So can it fix ?

Looking at the error message "The Network Adapter could not establish the connection" , It appears hostname and port may be incorrect. Review the targets.xml under E:\oracle\product\10.2.0\db_1\SAP_solman_SDB\emd and
emoms.properties under E:\oracle\product\10.2.0\db_1\SAP_solman_SDB\config folder to make sure host ( sap_solman) and port (1527) are correct.
As far as setting the environment variables goes, you can go to control panel -> system -> advanced -> environment variables and set the ORACLE_HOME and ORACLE_SID
-Ramesh

My Early 2009 Mac Pro won't restart after installing Mavericks

I have installed Mavericks on my Early 2009 Mac Pro and all seemed to install just fine but when I restart the Mac then it won't get past a grey screen with Apple logo. It seems that it does get reasonabley far into the startup, it gets passed the grey screen with cricling progress thingmy under the Apple logo, then it flashes very quickly and after that it is a grey screen with the Apple logo and no further.
I did try installing Mavericks when it first came out and I had this problem so I just abandoned and reinstalled Mountain Lion from my Time Machine backup. However I thought that with Mavericks now at 9.1, maybe it would work okay this time but no change. However this time I do want to get it working because the lastest Final Cut Pro X requires Mavericks and I do a lot of video editing.
Here are the things I've tried which have made no difference:
Removed all peripherals, so that now nothing is plugged in except the original Apple Keyboard, my Apple trackpad and my Eizo monitor.
I tried starting it in Safe Boot mode but this made no difference.
I started it up in Recovery mode and it will start in Recovery mode. While in Recovery mode I checked the startup hard drive with Disk Utility, the drive is fine, as and I repaired disk permisions which made no difference.
I zapped the PRAM.
I connected it to my MacBook Pro in Target Disk mode and used ProSoft's Drive Genius 3 to check over the startup hard drive again and check disk permissions and all is well.
It still will not startup
I would be most grateful if someone could assist.

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 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 4
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 5
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 6
Boot in safe mode. Note: If FileVault is enabled, 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 7
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 8
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 9
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 10
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 11
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.

Mac mini won't boot after RAM upgrade.

Tried installing new RAM in my Mac Mini, 512MB stock to 2GB of Crucial. Followed the directions to a T, grounded myself the whole time.
Things I've tried so far:
1. Resetting the PRAM, no luck.
2. Holding option at start-up, shows no icon.
3. Holding shift, no luck.
4. Holding X, nothing.
How do I get it to accept a CD if it won't boot?

Welcome to Apple Discussions!
You clearly have a problem, but you don't describe exactly what that is other than that your mini won't boot after the upgrade. What happens when it starts up? Does it attempt to start and hang up on the grey or blue screens, or does it start beeping at you almost immediately after you try and start it up, and also flash the power light?
If the former, then you may have dislodged a connector while working inside the system, in which case opening it up and checking that everything is firmly connected would be the first thing to do. If the latter, then the beeping/light flashing is the system telling you it has failed the power-on self test and the pattern of beeps/lights indicates why. In your case likely the system can't find workable memory. In that instance, opening the system and ensuring that the RAM is firmly and fully seated would be a good step, and if the mini continues to fail, then replacing the new RAM with the original to test that the system will then start.
It is not likely that anything had damaged your MacOS install in the process of upgrading, thus normally no reason to need to boot to CD as a result of a RAM issue.

Won't restart after sleep

This is a common if infrequent issue, but my new MacBook Air running 10.9.2 won't restart after sleep. I've connected it to a Thunderbolt display, and after sleep all I get is a finger pointer on the display and nothing else. Only shutting down and restarting works.
I've seen this issue in other posts, but it's never affected me until I replaced my previous MacBook Air with a new one.
Has anyone got a resolution? It's very annoying with applications and files open on crashing.

Hello Slinky09,
Thank you for using Apple Support Communities.
For more information, take a look at:
OS X: When your Mac doesn't sleep or wake
http://support.apple.com/kb/TS5357
If your Mac doesn't sleep or wake as expected, review the steps in this article.
Reset SMC
Reset NVRAM/PRAM
Test with external devices disconnected
Try Safe Mode
Try another user account
Have a nice day,
Mario

Mac won't restart after updating to OS X Mountain Lion

Mac won't restart after updating to OS X Mountain Lion. Please help?

Like what happens? Is it just spinning?
If you've waited sufficiently long (say 10 minutes) you could just hit the power button which will do the trick. A little more gentle would be to open a terminal window (if you can) and type 'sudo reboot' (without the quotes) and enter your password when it asks. That will do it too.

Mac pro won't restart after replacing backplane

Mac pro won't restart after replacing backplane. I tried resetting PRAM, no luck. The grey screen with apple logo and spinning wheel shows up and the wheel continues to spin.

What did you modify 'under the hood'?
Mac OS X: Gray screen appears during startup - Support - Apple
Read as MBP.
Message was edited by: nbar

MacBook Air won't restart after installing Mavericks

My MacBook Air (v Fall 2011) won't restart after installing Mavericks. I have done the instal several times, done the disk repair, I have had 2 visits to the local Apple store where they installed Mavericks with their software only to return home and have it fail again. Does anyone know of issues with the SSD or memory?
Next visit to the Apple store is Tuesday morning 12-17-13. Anywthing that can help us would be appreciated. Tks David

Ok. Nevermind. I guess I had to Force Quit/Relaunch Finder.

HT204347 My MacBook Pro won't restart after update to lion

My Mac book pro won't restart after updating to lion ! Said problem a cured at startup press any key ! No Goodrich

Press and hold power button for up to 30 seconds. Remove battery and reinsert then repeat.

Intel Mini starts fine, but won't *Restart* after serious upgrades

Similar Messages

Maybe you are looking for

Intel Mini starts fine, but won't Restart after serious upgrades