OS X :: When Are IMac USB Ports Powered?
Dec 21, 2008
I occasionally have trouble charging my iPhone via my iMac USB ports. I plug in the iPhone, the screen indicators change to show that the phone is charging (green battery indicator and the lightning bolt symbol). However, when I come back to the phone several hours later, the charge indicator hasn't advanced any. For example, if the indicator showed half-full when I plugged it in, it remains half-full.
The iMac does go to sleep a few minutes after I leave it, but sleep has never precluded an iPhone battery charge on my MacBook, and most of the time it works on the iMac.
Is there anything, besides shutting down a computer, that causes a USB port to unpower while the iMac is sleeping? Does it matter whether I am logged in or simply at the login screen?
View 8 Replies
ADVERTISEMENT
Jan 10, 2011
I love my iMac but the one thing I hate is that it only has 4 USB ports...
I have 3 USB 2.0 External Drives.... My digital camera, iPhone, iPad, Kodak Zi8, Elgato Eye, and Harmon/Kardon Sound Sticks... and a few other USB devices...
Can anyone suggest a good Powered USB hub? I have this little 4 port laptop USB hub.. right now, but my external keep disconnecting..
View 6 Replies
View Related
Jun 27, 2014
On my mid 2007 Aluminum 24" Intel Imac shows nothing but a white screen when powered on even though according to the diagnostic LED lights which are all powered on and green the logic board, video card, and everything else are speaking back and forth to each other perfectly fine. Does this mean the LED screen is bad or (from what I've read) is it a possibility the hard drive is bad? I know the optical drive is bad and will not spit out any discs. The #1 reinstallation disc for the OS is stuck inside right now. Before I order a new screen, inverter, and optical drive I figured I should ask in here to see if it is just bad hard drive or something else. Wouldn't the LED diagnostic lights tell me if the hard drive was bad?
View 5 Replies
View Related
Mar 21, 2009
I was thinking that if i bought an external MOBILE hard drive (un-powered) i could take it with me sometimes when i need it in UNI (in Lectures where there is no power source to plug drive in), but also attach it to the mac and since it is un-powered and mobile time machine will work without needing external power.
View 2 Replies
View Related
Oct 2, 2009
If so, do you use them and what sound system do you have?
View 2 Replies
View Related
Jun 13, 2007
would it be possible to solder any wires to get power onto the USB ports on a G3 iMac? I have a blue 500Mhz model, if that would make any difference. the reason that I want to do this is because all of the iPods use USB now, and I would like to be able to charge mine while I am syncing it.
View 2 Replies
View Related
Apr 24, 2008
Hi, i have a 24" intel core 2 duo 2.4GHz imac aluminum 1 gb ram.
I first noticed this problem when i plugged in my ipod, it would not open itunes, appear in itunes, the desktop or finder. i managed to resolve this problem by reinstalling itunes and plugging in my ipod before i turned on the computer, but i can not change anything as it gets stuck while syncing with my ipod and says that my ipod is disconnected, i reconnect but the ipod not not appear on the screen.
View 9 Replies
View Related
Feb 1, 2009
I recently went away for the weekend and when I came back my USB ports don't work. When I first start my 24" iMac the mouse lights up but then goes off later on when it's booting up. I really don't know what to do and i'm not even sure if I got any discs with my iMac as it had Leopard preloaded...
View 2 Replies
View Related
Jan 30, 2009
I have a aluminum iMac, which has been working fine until now. A couple of hours ago I restarted it and went and did something else for a couple of hours. I then came back to find my keyboard and mouse not working, I double checked and they were both plugged in fine (I use the aluminum apple keyboard and a kensington mouse). I restarted my computer but it still did not fix the problem (I was still stuck at the login screen). I thought it might be the USB, so I plugged my iPod in, and it did not charge. While my iPod was still connected to my computer I restarted it again and as soon as the screen turned grey my iPod started charging and my mouse worked (the light turned on), but only until the grey apple logo appeared and it then stopped working again. I have tried every USB slot and none of them work. I'm pretty sure my computer was completely updated as well.
View 3 Replies
View Related
Jul 9, 2010
Recently I changed my 4-port USB hub for a 7-port hub. Now 2 USB ports are dead, and the third port will only accept self-powered devices, such as external drives, a printer, or memory sticks. I dare not plug in a hub, so I am faced with a lot of plug-swapping.
View 3 Replies
View Related
Oct 24, 2010
So i can make an imac function as an external monitor by using a display port to display port cable. i would like to know if the usb ports on the imac will also function for a connected laptop? Most other monitors have extra usb ports and would be cool if they worked on the imac as an external monitor for a laptop.
View 1 Replies
View Related
Nov 26, 2010
I intend to purchase a wired keyboard on my BTO iMac and I understand that there are two USB ports, one on either side of the keyboard. Are these ports USB 2.0 as they are on the rear of the iMac?
View 11 Replies
View Related
May 8, 2009
I have a new iMac and an older MacBook. I wanna transfer about 70 gigs of info to the macbook from the iMac. Only problem is the iMac has a newer firewire port and the macbook has an older firewire port. Transferring wirelessly through aim will take way too long. Can I connect through the ethernet ports or maybe usb ports?
View 2 Replies
View Related
Sep 8, 2014
I'm looking to run video out to two TVs, but it's over a decent distance, so I'm worried that using an HDMI splitter would cut the signal and suffer quality loss. I was wondering if both mini DisplayPorts can be linked to output the same signal at the same time, so that both TVs can show the same thing but each signal is at full force.
Info:
iMac
View 1 Replies
View Related
Jun 27, 2014
My desktop will no longer recognize anything I plug into any of my usb ports! I have rebooted and updated my software but still nothing….
View 1 Replies
View Related
Dec 13, 2010
Last month, I upgraded to the new 21.5 inch IMac from an older IMac and I really have loved the cpu/gpu improvements. However, I have never liked the bluetooth keyboard - namely, the lack of easily accessible usb ports. Not having those two usb ports on the keyboard is equivalent to the old-style pc towers that had the usb ports only in the back. It just doesn't make sense. With the bluetooth keyboard, I found myself always reaching around to the back of the imac body. So I went back to the wired keyboard.
View 6 Replies
View Related
Nov 10, 2009
Imac, osx Leopard. Was working fine for many months (except for the 27 vertical lines but won't bore you with that), I bought a powered usb2 hub to power a usb hard-drive, when connecting the hub after a few minutes the Internet connection stopped and does so any time I connect the hub, now without the hub being connected the internet stops and starts every few minutes making it impossible to do any work. Other macs in the house are unaffected (s I'm having to write this on a minimac). Has something damaged the imac for good ?
View 5 Replies
View Related
Oct 2, 2008
Has anyone here have any success using an external USB drive (2.5 or 1.8 small drives) thru a hub with the Air?
I know I could use a powered hub but I hate taking and messing about with additional power supplies when I travel.
does anyone know of a specific model HD that works with out needing to connect directly to the one USB port but thru the hub?
View 9 Replies
View Related
Mar 20, 2009
I recently got a Macbook and have a iPhone and iPod shuffle. The thing is there isn't enough usb ports on the Macbook so I had to get a hub. The hub I got IS self powered and does not require a external power adapter. My concern is that I am withdrawing too much power from my usb port through this hub. It is a 4 port hub and a External HDD ( has own power supply), Optical mouse is connected to it. also I charge my iPhone and shuffle via the same hub.
I am afraid that there is power limit feature and it will fry my computer. I notice if I boot in boot camp to windows. Windows will display a error message telling me, I am not allowed to have this many device drawing this much power. Anyone know if I should be okay as long as OS X doesn't give me a message or should I really consider getting a USB hub with its own power adaptor?
View 12 Replies
View Related
Jun 19, 2009
Is there no way around this? is the USB simply for power? IE can i just plug it into a powered USB hub (thats not actually plugged into the air?
View 5 Replies
View Related
Oct 27, 2009
I share a quite common problem. My macbook doesnt boot-up.It does power on and gets into the booting up process but nothing happens...
To be more precise, after powering on the MB, the grey display appears and after a while the apple logo and the circle of lines starts to move around.
After that nothing else happens...
I ve tried everything possible... SMC reset, PRAM reset, verifying the disc by booting up either from single user and check it with fsck or with the booting disc and run all the verifying tests and the repair ones... Everything there were just as NORMAL...The OS refuses to open either in normal mode, or at safe mode or even the verbose mode, though it does boot up in single-user mode.
I even took out the HDD and place it in a HDD cover and then plug it as an external device to my other MBP. I run the tests once again but everything seems to be NORMAL again...The only thing that is left to check is whether the boot files have any problem...
View 3 Replies
View Related
Jan 6, 2010
What is the most beautiful powered usb hub out there? I'm looking for a hub to go with my mac pro and I have a lot of devices that requires a powered usb connection.
View 24 Replies
View Related
Dec 27, 2007
I am the original owner of a Power mac G5 dual 2.0 I purchased this machine in april of 2004 and it has been working nearly non stop ever since. Recently I put it into sleep mode and when I came back it had powered down and would not start up. I assume it's the power supply and I would like to know if there is anyway to tell what type of power supply and model thereof without tearing down the machine.
Information:
Powermac G5 Dual 2.0
Mac OS X (10.4.9)
View 4 Replies
View Related
Dec 18, 2009
I had a powered USB hub attached to my computer, w/ a mouse and two printers attached to it. For a while, it seemed to work fine, but then the printers wouldn't work, and I had to connect them directly to the computer. I decided the problem must be with the hub, so I went out to MicroCenter and bought a new powered hub. Again, it seemed to work for a while, but then the printers again wouldn't work. There aren't enough USB ports to run all my peripherals so I have had to disconnect a backup USB hard disk. The hub is now disconnected entirely, and I have to switch connections around. Needless to say, this is a pain.
MacBook Pro 17" 2.33 GHz Intel Core 2 Duo, 4GB Ram, w/ external 22" ViewSonic monitor, running OS 10.5.8
View 2 Replies
View Related
Oct 28, 2006
I recently have been having start up problems, when I would hit the power button I would sometimes hear a healthy startup and everything would boot up and then I just get a black screen and you can still tell it has power. I would start and restart untill it would boot. Now the only way the machine will start is if I unplug the moniter cord and plug it back in then it will start.
View 3 Replies
View Related
Feb 11, 2008
Will Apple's external Superdrive work through a powered USB hub?
Or does the Superdrive need to be plugged directly into the MBA?
Are there any other USB devices that will only work directly plugged in?
View 19 Replies
View Related
Feb 18, 2008
I bought a Belkin powered USB hub and hooked my MacBook Air Superdrive to it and it won't work. I was under the impression it would in a powered USB HUB. Anyone share any experiences with me on this?
View 24 Replies
View Related
Jun 2, 2008
What is the best portable HD that can be powered from the MBA's USB hub without a power cable.
View 16 Replies
View Related
Mar 23, 2009
I have a pc powered iMac and I'm looking for speech to text software. Of course all of the software that sounds really great, like macspeech dictate, needs an intel based machine.
View 3 Replies
View Related
Apr 15, 2009
My battery seems to have lost the plot. I can turn my machine on when running off the battery and it fires up as normal. Once it gets to my desktop everything is frozen. The arrow is always stuck in the top left corner and the only thing that works is the power button, but I can't even turn it off because I can't select switch off.
It works fine if I take the battery out and run off the adaptor but kinda defeats the purpose of having a laptop.
View 1 Replies
View Related
