Mac mini shut down with USB and USB Over Current Notice

I just spent the day dealing with my mini shutting down when I connected my iphone. If I left it connected at restart, I got the infamous USB Over Current Notice. I tried all suggestions and finally used an apple connector instead of the one I had been using. Everything OK again... Other comments? It was very time consuming and frustrating.

Do you have other devices connected to USB ports ?
Try to connect with a powerde hub in between.
and look here https://discussions.apple.com/message/7191644#7191644

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Mac mini shutting down with screen(s) running commands/code?

My mac mini started shutting down while in use. It then runs commands or code very quickly over screen after screen. Have to restart. Keeps happening. Can you help?

Hi and welcome.
Could you give us a bit more history about your Mini and what lead or leads up to this?
Do you have a G4 Mini (2 usb ports), CoreDuo/Core2Duo Intel Mini (4 usb ports), or a 2009 Intel Mini (5 usb ports)?
What version of OSX are you running? (Apple Menu > About this Mac)

Mac mini shut down on its own, will not restart, grey screen, spinning wheel. Unplugged everything, will still not restart. Did safe boot, will not restart after safe boot, only grey screen with spinning wheel.

Mac mini shut down on its own. Could not restart, chime, grey screen and spinning wheel. Unplugged everything but monitor, still only chime, grey screen and spinning wheel. Started in safe boot, shut Down, will not restart.
This happened a couple of months ago, unplugged everything and it restarted, now that won't work.

Hi BDAqua,
I just did the repair as you suggested. T ran the disc repair, and twice it cam back, the volume macintosh seems ti be okay, I also ran the verify and permissions repair, both came back okay.
I was actually hoping that they would find something, so they could repair. I shut the computer down, and restated with out holding a key, and I started up great. I'm baffled. I have moved 20 GB to an external hard drive, as I only had 10% open space.
I have Tech Tool 6, would you recommend to run a repair check on that, or just leave well enough alone.
I agree with you on the new Mac's, I have problems with no disc for back up, until they realize their mistake I will stay with Snow a Leopard. This is the first problem I have experienced, so I can't complain. Their last programs are not as perfected as under Steve, prior to his handling over the reins, hope this is not going to be the future we can expect from Apple.
I will wait to here back as to your suggestion regarding the Tech Tool check
Thanks for all your help.
Gratefully,
Cheri

MY mac mini shut down unexpectedly and now it won't restart properly

My mac mini shut down unexpectedly. When I restarted it the screen turns blue and a box pops up that advises "Finder quit unexpectedly". It gives me an option to ignore, Report, or Reopen. The cursor works, but none of those button work. I'm stuck on this screen. I tried all the support suggestions with no luck. What else can I do?

The "worm" as you call it is usually referred to as a Thermometer progress bar. It is showing that your Hard Drive cannot be mounted, and a Disk Utility (Repair Disk) is taking place. If not successful, your Mac will shut down, since it cannot be started up successfully.
You have unresolved Damage to the Disk Directory.
If you do not have Backups, making them should be Top Priority.
Otherwise, boot your Mac from an alternate Boot Drive. If you do not already have one, buy a drive to replace the Internal Drive currently inside your Mac, and an External enclosure to run it in. Install Mac OS X on it and boot your Mac from the fresh Install.
Then you can attempt to repair or salvage from the old drive at your leisure, using the full power of Mac OS X to do so. When your situation is stable, swap the Internal and External drives.

My imac is frozen with the following notice: USB over current notice. have tried powered hub, no help. have tried unplug and restart, no help. any suggestions?

my imac is frozen with the pop up notice of "usb over current notice, a usb device is currently drawing too much power. the hub it is attached to will be deactivated". have tried unplug and restart, no help. have tried power hub, no help. my wired keyboard and mouse do not work. help.

Unplug all devices including your mouse and keyboard. Now do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computer's power cable.
Wait another 5 seconds and press the power button to turn on the computer.
It is the 5 second timing that initiates the reset.
If it starts up normally plug in 1 item at a time. You may have a defective device that is drawing too much current.

Mac mini shuts down after 10 seconds..

At first today, the CDs and discs kept automatically ejecting and wouldn't read (obviously). So I keep putting them back in hoping it would read or hold something. Then I restarted and the Mac Mini shuts down after 10 seconds of the seeing the desktop. Did I fry it? I did hear a weird sizzling when I put my hand on top of the mini. And is this under any warranty - I bought it Feb. 07? Any help would be greatly appreciated.

Any thoughts on that?
One or two come to mind, not least that if the unit is under warranty now (as it clearly is) and they aren't taking this fault seriously, then buying AppleCare so it remains under warranty longer isn't the right solution - having them examine it and resolve the problem is.
There's no doubt at all that in the event there is a system with a suspected fault, extending the warranty long enough that the system ceases to function and can be repaired is a good thing, but it shouldn't be necessary to go to that extreme in order to get a problem resolved now!
I would simply take this elsewhere and have it looked at. While odd noises are sometimes hard to hear in an environment where there are people and other activities going on, and thus it is reasonable to expect diagnosis of them to prove difficult, a system that shuts down of its own accord after a few seconds is clearly not working correctly. To be sure, if it is overheating, then testing it when it's cold is likely to miss the problem, but the description of the fault from the user ought to give enough clues to put the system on test long enough to see what happens when it warms up. If the fault can't then be replicated with a system that is at normal running temperature and under load, then giving it a clean bill of health is reasonable.
Thus, in your place I would ask them if they did, in fact, test it in that way. Alternatively, write a description of the fault, specifically identifying the premature shutdowns and the circumstances in which they happen (if they still do) and the noises and the circumstances in which they occur (if they still do) and take the system and description to an approved service provider and let them look at it.
If the shutdowns are no longer occurring, and the noise is absent, then whether you buy AppleCare or not is really a matter of how confident you are that the problem has gone. If you have doubts that the system is running correctly, AppleCare is expensive but at least extends the warranty sufficiently that you can stop worrying too much. Alternatively, if the problem(s) still persist, rather than AppleCare, have the system examined and repaired right now.

Mac Mini shutting down while asleep.

I have frequent problems with my Mac Mini shutting down while asleep. Resetting the SMC doesn't seem to help. SMC firmware is the latest version. Hardware details are:
Model Name:          Mac mini
Model Identifier:          Macmini6,2
Processor Name:          Intel Core i7
Processor Speed:          2.3 GHz
Number of Processors:          1
Total Number of Cores:          4
L2 Cache (per Core):          256 KB
L3 Cache:          6 MB
Memory:          8 GB
Boot ROM Version:          MM61.0106.B03
SMC Version (system):          2.8f1
OS X 10.9.1

If you have more than one user account, you must be logged in as an administrator to carry out these instructions.
This procedure is a diagnostic test. It makes no changes to your data.
Please triple-click anywhere in the line below on this page to select it:
syslog -k Sender kernel -k Message CSeq 'n Cause: -' | tail | awk '/:/{$4=""; print}' | pbcopy
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing the key combination command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
Wait for a new line ending in a dollar sign (“$”) to appear below what you entered.
The output of the command will be automatically copied to the Clipboard. If the command produced no output, the Clipboard will be empty. Paste into a reply to this message.

USB over current notice and other problems

I have a 17" MacBook Pro (original 2.16 Core Duo) that has a USB over current notice pop up. The pop up says that the USB hub it's attached to will be deactivated. I'm trying to troubleshoot it but can't figure out what's causing it. What exactly does this notice mean? The ports all still work. The iSight doesn't work (not even recognized in System Profiler), and I know that's on the USB bus. Could that be the problem? I noticed the pop up seemed to occur with movement. I've found that I can recreate the USB alert at any time by applying pressure to the bottom case, in the center right behind the RAM cover. This may sound strange, but while trying to figure this out, I was pressing around on the top case to the sides of the trackpad, and when doing so it made a crackling sound. It did this again when I applied pressure and the keyboard and trackpad became unresponsive. Does anyone have a clue? Thanks.

Try http://support.apple.com/kb/HT2090 to see if you can find the iSight problem.
If your iSight is still not recognized in System Profiler, you likely have hardware problems. (That hardware problem could also account for your problem "with movement" and the "crackling sound.") Contact Apple or an Apple-Authorized Service Provider for service. Tell your service provider about all your issues. My guess is that at least some are related.
If you can get your iSight working again, consider the info from these Apple technical articles:
http://support.apple.com/kb/HT1411
http://support.apple.com/kb/TA25685
http://support.apple.com/kb/HT1151
http://support.apple.com/kb/TA26511
http://support.apple.com/kb/TA25618
It seems possible to me that an unpowered (or possibly an underpowered) hub could be causing your symptoms. It also seems possible that a faulty power supply on a powered USB hub could cause bus current overload without your knowing that your hub is operating like a non-powered unit even though you have it plugged in to wall power. If you cannot check your hub's power supply, ask you Apple Technician to do it when you have your MBP checked.
EZ Jim
G5 DP 1.8GHz w/Mac OS X (10.5.6) PowerBook 1.67GHz (10.4.11) iBookSE 366MHz (10.3.9) External iSight

USB Over Current Notice on G5 with 22" Cinema Display

USB Over Current Notice on G5 with 22” Cinema Display
I have owned a Dual 2GHz 64 bit Power PC since 2004. In that time, it has performed virtually flawlessly (as in having no major issues to speak of). Now, all of a sudden, I'll be working away and a warning window with a large white exclamation mark in a red octagon pops-up stating: “USB Over Current Notice. A USB device is currently drawing too much power. The port to which it is attached will be deactivated.” The window repeats itself cascading down 3, 4 or 5 times. This will continue to happen even when I’ve disconnected the only 2 USB devices attached to the computer, i.e., an Apple keyboard and a Kensington Expert Mouse (#K64325). Can anyone shed some light on this problem. It is very disconcerting (not to mention annoying). Does anyone have a solution for me (other than “junk the old beast”)? The fact is it still works great with both Final Cut and Pro Tools. Last but not least, I think I’ve narrowed the problem down to my 22” Cinema display. With the computer is attached to another monitor, I’ve yet to have that warning pop up. Is that possible? Could the display be the culprit?

Yes, in answer to your question (BDAqua) my Cinema Display has a ADC connector & USB ports on the back.
Your asking that question brings another to mind. If there are those, who have figured out, wherein the actual problem lies, i.e., with the monitors that have USB connectors built in, why didn't Apple just issue a recall on those monitors rather than having so much spurious and speculative information floating around out there on the internet?
I've just for the first time tuned in to these user forums and blogs only to discover that this is a wide spread problem that has been going on for years. (???) People saying, "Oh you just need to restart the computer" or "it's a bad mouse" or "bad keyboard" or worse yet, "it's your MOTHERBOARD!!!" when in fact it appears to be none of the above. Surely this is something that Apple became aware of long ago. Why didn't they correct the problem raher than letting it persist and making their buying public jump through hoops. I've been an Apple user for many many years. I've spent tens of thousands of dollars with that company from my first Quadra 950 to my MacPro -- I find this very disappointing.
In conclusion, all I can say is, I sincerely appreciate that you've taken the time to respond in an attempt to help. Thank you.

HT4623 please help - installed IOS7 and now I am having problems playing Words Free on my Iphone. It gives me a pop up telling me to connect to ITunes but will not connect. Cannot get out and have to continually shut down my phone and start over.

please help - installed IOS7 and now I am having problems playing Words Free on my Iphone. It gives me a pop up telling me to connect to ITunes but will not connect. Cannot get out and have to continually shut down my phone and start over.

Hi, jeantwin.
Thank you for visiting Apple Support Communities.
The steps in the article below may help you resolve the issue with push notifications.
iPad and iPod touch: Unable to use YouTube or Push notifications
http://support.apple.com/kb/ts3305
If the issue persists, try signing out of your Apple ID and then sign back in.
iOS: Changing the signed-in iTunes Store Apple ID account
http://support.apple.com/kb/HT1311
Cheers,
Jason H.

Keep receiving "USB Over Current Notices" since updating to OSX 10.6.8. I have no devices plugged into my Imac and running everything wireless. SMB/PRAM resetting did not work. Does anyone have some advice or can help?

Keep receiving "USB Over Current Notices" since updating to OSX 10.6.8. I have no devices plugged into my Imac and running everything wireless. SMC/PRAM resetting did not work. Does anyone have some advice or can help?

Hi Melissa,
Pretty strange, but...
Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, does it happen in Safe Mode? Reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)

USB Over Current Notice - Macbook Pro 2006

I had an external hard drive connected to one of my USB ports, and I think the AC Power adapter it was using flipped out. The drive no longer works at all. The port (front left) does not work with any devices (powereded or not) now, but the other two USB ports do (powered devices or not). I figured I'd have to take it in to the shop if I want to get the dead USB port working again. Or, is that something I may be able to fix? Anybody know?
Everytime I power up the computer now, I get this notice: "USB Over Current Notice, A USB device is currently drawing too much power. The hub it is attached to will be deactivated."
It must be referring to the front left port as a hub, right? And since the other ports are still working, am I correct in thinking that each port must be considered an independent hub from the others?
I find it notable that the dead USB port is reporting to continually be "drawing too much power." Maybe the circuitry is just fried so it keeps reporting it??? I have nothing plugged into the port in question.
Does anybody have any helpful ideas how I can remedy this issue besides taking it in to the shop? Anything I can do through software?
Message was edited by: Adam Berkey

time to re-think cost vis-a-vis reliability of these macbook pros
*BINGO !*
Plus,... when you live in the middle of nowhere -like me- and that the nearest Apple authorized reseller doenst give the Apple Care service ? (yes ! I swear, not a lie)
Plus, ... when calling the US complaining the bad Apple service in LatAm, there is no reply ..
Plus, ... no way to contact Apple LatAm ( its a continent, right ? ) Apple LatAm is the only location without phone number in the International Technical Support Numbers ..
I feel VERY VERY alone and frustrated. btw I bought the dearest computer in the world, in order to get the best quality and service
If someone could give me a phone number where I could complain about Apple Care in Argentina
I would be very happy
Thanks for your help/advice Apple people ! http://homepage.mac.com/rdsck/PhotoAlbum24.html

USB Over Current Notice - Nothing Connected

Hey all,
so recently i hooked back up my power mac and it worked well for the first couple months.
However, today i was not so lucky. I have a 20 inch apple monitor attached, and it has 2 usb ports. Those ports are almost always plugged in, but when i try to plug them in together, now i get the message 5 times in a row: USB Over Current Notice, A USB device is currently drawing too much power. The hub to which it is attached to will be deactivated.
After playing around with it for over an hour, I've drawn a couple conclusions. If nothing is connected: it will still pop up 5 times in a row. If I have just the keyboard in (and mouse connected to keyboards USB): the message pops up, however the hub (usb on monitor) is not deactivated. If i plug in my music streamer and the keyboard: message pops up and the hub is deactivated.
Finally my troubleshooting.
Resetting the SMU: http://support.apple.com/kb/HT1436
Not sure if this is a late 2004 or late 2005 Power Mac G5, but i did it the 2004 way so far.
Resetting the PRAM: http://support.apple.com/kb/HT1379
Both have not helped the problem, if the problem still exist I will take off the aluminum cover and reset the SMU or PMU or whatever else people suggest within the next couple of days.
Currently on my laptop watching it pop up every 30 seconds between me holding return (closing the 5 windows). ugh

Yes, it's likely the Monitor hub, a common failure point, disconnect the USB to the Monitor & get an AC powered USB2 hub.

Plugging in iPhone results in USB Over Current Notice

When I plug in my iPhone I now get the following message:
USB Over Current Notice, A USB device is currently drawing too much power. The hub it is attached to will be deactivated.
I tried powering down, unplugging the power cable and removing the battery, then waiting 30 minutes and placing everything back together - still got the message.
I also reset my SMC- still got the message.

Does the iPhone connect normally to other computers/macs? Can you try another cable?

USB OVER CURRENT NOTICE

I keep receiving this error message in a dialog box, repeatedly; so much so, in fact, that it is affecting productivity: "USB OVER CURRENT NOTICE - A USB device is currently drawing too much power. The hub to which it is attached to will be deactivated".
The only thing attached by external USB is the stock Apple mouse; in fact, this machine is plain vanilla, nothing-that-didn't-come-out-of-the-box stock Apple. I have tried resetting the SMC. I have tried a different mouse. I have tried no mouse. I have tried all the different USB ports in the back. I performed a shutdown and left everything unplugged for half an hour. There isn't any relevant help on Apple's support site.
Any ideas?

I don't know if this helps but...
I have five 24" iMacs in a education lab that keep telling me "USB Current Overload," even though only the Apple keyboard is attached. It seems they starting giving me the message the first time I turned them on. However, after a great talk with an Apple Tech person, we deduced that it must be a driver I installed on the five machines. We came to this conclusion because when I boot the machine from the OS CD, the problem doesn't happen. When I reboot from the hard drive, the message incessantly pops up, even with just the keyboard and mouse (that it came with) plugged in. On one machine in particular, the message pops up so many times that I can barely use the machine.
I have installed two external devices driver's on this machine, a Novation ReMote Compact SL driver and a TC Electronics 24 D firewire driver. I also have "frozen" these machines using DeepFreeze, which keeps students from installing things or chaning settings. My assumption is that one of these drivers is causing the bogus message. Since the computer works fine when booting up from the OS CD, this is the only thing that could be happening. Some other driver is causing the machine to think a USB device is drawing too much power. At least, I think this is what is happening. I'm still working on fixing this problem, but have not been successful yet with removing drivers.

Mac mini shut down with USB and USB Over Current Notice

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