Mac Pro :: USB Ports Constantly Losing Power?
Mar 22, 2012
Ive got a 2008 Mac Pro and recently Ive been experiencing some issues with its USB ports. The front usb ports have a USB antenna connected and some time later, it just loses power and I have to disconnect it and connect it in order to make it work again. Besides that, Ive got a USB hub connected in one of the back ports. In it, is my camera and my keyboard. After some time, it just loses power. Not at the same time than the usb antenna, but in less that an hour I have to repeat the process 2-3 times. Worth to note, that in the two back usb ports left, Ive got an external hard drive in each and I dont have problems, there are always seen in the finder.
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Mar 13, 2012
I have a PC laptop which also uses the wireless and has never had a problem.My Mac Pro loses access to the net every few minutes or so. I usually follow a sequence of "Turn AirPort Off" / "Turn Airport On" to cycle the connection, and this works but only for a temporary solution until it drops out a few minutes later.also link to pic here..[URL] It always shows full bars even though in the activity monitor it just flatlines or flutters near 0kB/sec. Like many others, my connection drops although the wireless signal icon remains full. I've noticed that as long as my system doesn't idle (ie - if I'm downloading something, or on a webpage which is always sending or recieving data) the wireless connection seems alright. But if I am on a webpage (for instance, this Apple website which is idle and not sending or recieving data) for a few minutes or am away from the computer for 5 minutes, the connectivity dies and I cant access the net. I then follow a sequence of "Turn AirPort Off" / "Turn Airport On" to cycle the connection, and this works but only for a temporary solution until it drops out a few minutes later. Also, can I ask that NO ONE suggest that I hook my computer up via the ethernet cable as there is no access points upstairs and I'm not going to pay a tonne of money to get one installed when I paid a tonne of money for my "AirPort Extreme" so I didnt have to (which was just over 2 years ago).Â
Its been a constant problem for the last 12 months and the short-fix of "Turn AirPort Off" / "Turn Airport On" to cycle the connection has driven me to madness (especially when I write a lot of information into a site for example this, and after 15 minutes I click the next button or send and dont realise the net is no longer connected and I LOOSE EVERYTHING I'VE JUST TYPED. It's happened 1000's of times.
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Info:
Mac Pro, Mac OS X (10.7.3), AirPort Extreme
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Jun 4, 2010
I've had my iMac 27" i7 since November '09 and have had no real problems with the magic mouse until today. It is constantly losing it's connection taking seconds to sometimes minutes to finally re-connect. It's happening while the mouse is idle or while I'm using it (it happened right after I clicked to start this thread in fact!)
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Apr 19, 2012
I am running an imac 24-inch Mid 2007 on 10.7.3. Always do the updates and everything seems ok. I have been having problems with connecting, reconnecting after sleep and just losing my connection in the middle of being on wifi. I have replaced my wireless router, I have deleted all previous wifi networks. I have also renewed my dhcp license. Nothing works. To reconnect, I have to continuously go to network preferences, assist me, diagnostics, then continue with the assist me and choose my network and it then reconnects. This is not just waking from sleep. Sometimes just randomly while working on the computer. I have read some things about equipment plugged in and I have an ATT micro cell plugged into 1 ethernet jack in my wireless router/modem, I also have a bluetooth mouse, a printer plugged in USB and a Lacie HD using Time machine.
Info:
iMac, Mac OS X (10.7.3), 2.8 GHz Intel Core 24-inch Mid 2007
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May 13, 2012
When I am on the internet, I am constantly losing connection.
Info:
iMac
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Apr 4, 2012
I am wondering if my battery is losing its power? Fully charged I get 3 hours at the very most from it. I started this morning at 100% and after 10 minutes am down to 85%. This computer was purchased in 2008.
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Dec 2, 2007
3 times in the last week, my 400 & 800 firewire ports are not working. I am using a firewire hub with several external drives. I unplug everything, reboot and then they work. anyone know what is going on?
Information:
Power Mac G5
Mac OS X (10.4.2)
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Dec 13, 2007
Both my firewire ports are not working. No signal or connection with external hard drive or video camera. Firewire does not appear under Network Status and is grayed out under Network Port Configurations.
Information:
PowerMac G5
Mac OS X (10.4.11)
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Dec 21, 2007
I just got my dual 2ghz G5 that I bought off ebay. I love it. Anyway, it has a 64mb Radeon 9600 Pro with the two monitor ports. I plugged my 22" Samsung into the DVI port. I want to buy another identical monitor for the other port, but it looks different. I found a graphic that shows the card's ports: [URL]. The top one in the graphic is where I put the connection. The bottom one is different. Is there an adapter or something? Or since I'm using two non-Apple monitors, should I just get a new card? BTW, I just bought and installed Leopard.
Information:
Macs - multiple
Mac OS X (10.4.10)
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May 24, 2012
In the last two weeks, every time I plug my Apple 27" display cables into my macbook (power, display and USB connections), I get the following error message on my screen about USB ports are drawing too much power. I don't have anything plugged into the USB ports on the back of my display.
Info:
MacBook Pro, IMac, Mac Mini, etc., Mac OS X (10.4.8)
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Jan 14, 2011
Seems my left USB port outputs more power than my right. Certain devices charge fine on the left but not on the right.
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Apr 28, 2012
I started to have problems with a used PowerMac G5 that I bought on December last year. The computer came with dual G5 at 2.0GHz, 8GB and 160GB Sata hard drive. The computer was running Leopard 10.5.8.
Once in my home I erase completely the hard drive and installed Leopard from scratch and ran software updates. At this point the computer was functioning good, sometimes crashes when I tryed to import images on iPhoto or Aperture, but appart from this nothing more. Few weeks ago I installed a new hard drive, the disk it's ok and doesn't give problems. The problems started two weeks ago, when computer crashes constantly and at any time with any reason, kernel crashes reports sometimes reports for Safari, other times for iTunes, others for uTorren, mdworker and mostly by Unknow application. I must to restart the computer by force shutdown, that only put thing worse. I was looking for documentation about solve my problem, but there is not so much responses.
Info:Power Mac G5 (June 2004), Mac OS X (10.5.8)
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Dec 13, 2007
I have had an intermittent problem. Every so often (once a month), my iPhone will not connect to my computer, it does not charge, nor does it show up in iTunes. I checked out 3 different cables, and none work (cable problem eliminated), I tried 3 different iPods, none charged or showed up (iPhone and iPod problem eliminated). I tried both the front and the rear USB ports and nothing ever happens. As far as I recall, this problem just cures itself after a few days. Any idea what I need to have repaired to stop this maddening problem?
Information:
Power Mac G5
Mac OS X (10.5)
2.3 GHz, 8GB RAM, 8GB iPhone, Dual Sony SDM-HS95 monitors, PowerBook G4
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Feb 1, 2012
Lately, whenever I start it up in the morning, I will almost immediately get a shutdown prompt ("Are you sure you want to shut down your computer now" ...). Nothing on the desk is touching the power button. Whenever I click "cancel", the prompt pops back up within a few seconds. If I hit shutdown or restart, it will just startup again with the same problem. Putting it to sleep doesn't work either, because as soon as it dozes off, another prompt pops up to wake it back up.Â
My company's IT guy thinks it is a power supply issue. He suggested that I unplug the cord from the machine and let it sit for 20-30 minutes (thinking it was building up too much of a residual charge or something like that). This actually worked for a period and still works most days, albeit not very reliably.
One intersting side note is that this problem only seems to occur in the morning. After, I've messed with the power cord and rebooted a couple of times, the machine seems to just get over the issue and I can work normally for much of the day. I'd to think I have a serious powersupply issue that might cause a crash.
Info:
PowerMac, Mac OS X (10.5.8)
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Oct 19, 2007
I've had my G5 for a couple years. I keep it under my desk, so I don't hear much from it, but I have noticed that the hard drive is constantly spinning. It's been doing it for as long as I can remember. Any ideas why, and whether I should expect a failure because of it?
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Sep 7, 2009
I have a Macbook from the beginning of 2008. Last July. I started to have problems with the battery , it was not recognized. It had an X icon and the power lead was green all the time. I took the computer to an Apple outlet and they told me that the battery was finish and I needed to buy a new battery, I bought a new battery and still the computer didnt recognize the battery, apparently the battery was not good. Apple changed the battery and now, I have a 3 battery. Now the battery is charging but on and off. Last week the battery was working fine for 4 days, but after 4 days the battery was not recognized, x icon again and lead green all the time.
24 hours later started to work fine. Today as I write this, the battery is on and off, two minutes is charging, 5 minutes is not recognized, and so on. I tried to reset the PRAM, System Management, etc but still the same thing, I even deleted ITunes, as the first time I started to have problems it was after downloading a new Itunes update and last week the battery was working fine for 4 days and crashed just after I started to charge my Ipod. Maybe it isn't related at all but I don't know. Could it be the logic board? the thing is I took the computer to Apple for a diagnosis but they told me that they didn't have a clue what it could be.
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Oct 2, 2009
If so, do you use them and what sound system do you have?
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Feb 22, 2012
My 13" MacBook Air Mid-2011 Version currently running Mac OS X 10.7.3. Is constantly overheating and the fan is constantly loud. The fan is around 5500rpm even when I am not doing anything on it or even when it is off.
Info:
MacBook Air, Mac OS X (10.7.3)
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Apr 21, 2008
The Mac Pro only has 2 400 and 2 800 ports. and I was wondering if there was a way to get more, or split them. I have a lot of externals and an isight, etc. Or maybe a solution is daisy-chaining harddrives, does anyone know anything about this, or how to do it.. I'm afraid to experiment with my data.
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Oct 16, 2008
Since apple is now in fashion to reduce the amount of ports in laptops, what do you think will happen to next MP model?
Which ports do we loose and which will survive?
Will there also be proprietary graphics cards with miniDP?
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Mar 3, 2009
Is there any real use for Toslink port in consumer (prosumer) life? Or is it just for audio professionals? I can easily find Toslink cables for sale on web, but no attachments using such cables. So what is such connection for?
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Mar 17, 2009
I bought a new micro SD card for my blackberry and I need to format it before it'll work. It came with a USB adapter but I have no idea how to access my USB ports. I've also heard that I can format it by putting it in the phone and accessing it as an external storage device, but I have no idea how to do that either.
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Dec 15, 2009
I'm having a NAT issue while sharing my internet via ethernet to my xbox360. I've opened the required ports except for 88 in my router because it uses that for services (friggin belkin). I'm still getting a strict NAT on my xbox and I should have a Moderate NAT if I have every port but 88 open. I know that Tiger had a setting for port forwarding in system preferences, but for the life of me I cant find it in snow leopard. Does anyone know how I could forward the necessary ports?
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Feb 15, 2012
I have the microsoft arc mouse and keyboard and each of them have seperate transrecievers. The macbook air only has two ports. If I bought a usb hub would this enable me to plug the transrecievers into the hub so I would have 1 usb port free? Im considering returning them and getting logtech's unifying transreciever, but they have no small keyboards that are compatible with it.
Info:
MacBook Air, Mac OS X (10.7.1)
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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 ?
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Apr 3, 2012
I usually have several tabs open in Safari. Sometimes when I reopen safari, it only opens 1 or 2 of my tabs, and then I have to dig through my history to find the other pages. This is at least the 3rd time this has happened and I'm getting sick of it.
Info:
Windows 7
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Apr 4, 2012
Recently I noticed that my screensaver changed by itself. So I went to go change it and realized that the only screensavers I had were "Computer Name" and "Flurry". I know this is kind of a stupid question to ask but its bugging me.
Info:
MacBook Pro, Mac OS X (10.7.3)
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Dec 11, 2006
My usb ports in my c2d macbook don' t seem to be working. When I plug in my digital camera (sony) or itunes phone (motorola), nothing happens. I tried both of these devices on my 2 old powerbooks and they sync fine. Anyway I can check whether my macbook usb ports are functioning?
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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.
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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.
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