I have a total of 10 USB devices connected to my G5 Mac, including hubs, printers and scanners. Most behave fine, but one or two cause minor problems. The worst offender is a Sierra Wireless 875U Aircard, which is a wireless broadband modem I got through AT&T. I use it for my Internet connection.
Every time I power up my Mac or bring it out of sleep, it won't recognize the 875U, even though it's plugged directly into the Mac's front panel USB port. I can't even see it on System Profiler. Having it in a different port or going to a hub port doesn't make any difference.
To make it work, I have to unplug it, wait a few seconds and plug it back in. My Mac then recognizes it and it works fine until I shut down the Mac or put it to sleep again. Granted, this is only a nuisance level problem, but it would be nice if the Mac recognized all the ports all the time. I'm running a duel G5 2.0 GHz under Mac OS 10.4.10. I see the exact same problem in my G4 iBook (1.0 GHz) also running Mac OS 10.4.10.
Everything is up to date; I reinstalled iTunes, and reset my iPhone and everything else I have read about so far. What do I do? I am using a Macbook Pro 10.7.3 and my iPhone 4 is 5.1.
My iphone 4s is not detecting in itunes, my operating system is windows 7. i had faced the similar problm 2 months before that time i hav done system format to solve this issue .but this time it is not possible to do formatting .
I was attempting to install Windows XP Pro through bootcamp and somehow wrote not only my entire external in NTSF but my whole harddrive. The techs at the Apple Store we able to fix my MacBook and they told me to take it home and preform a reinstall from Time Machine but when I tried that it kept saying "Device not Reconizable." I took it back and they found out that somehow I had written my external in NTSF during the XP install (which didn't work anyways). They told me to try "MacFuse" which will read NTSF files. My question is, is this the route to go? Also will I be able to get my Time Machine backups back and restore my MacBook back to Pre-Windows install?
I'm attempting to upgrade a family member 800mhz iBook G3 from 10.2 to 10.4 using my old iPod as the install drive. (Restored a DMG, etc) Only problem is that (other than being an ancient computer, I guess) is that said iBook doesn't see the iPod until after OSX loads (white spinny guy).
Tried holding Alt at bootup (not listed), setting it as the default boot device (just skips it and goes right to the HD), and just running it from OSX (reboots, straight back to OSX desktop).
Is there something I'm missing? Does this model G3 not allow detecting boot devices at start up? I'm kind of at a brick wall here. Should I just bite the bullet and do a target disk install?
I have two 15" Powerbook G4's, 1.67GHz, one has a Toshiba 80 GB hard drive (Powerbook 1), another one has a Toshiba 60 GB hard drive (Powerbook 2). Powerbook 1: The super drive on the 80GB hard drive takes CD's/DVD's but does not eject them, or recognize them. In System Profiler the Disc Burning section says "No burning device was found. If you are using an external device please make sure that it is connected and powered properly". I cannot boot of this CD drive or anything. Powerbook 2: Now the 60GB Powerbook works flawlessly, even though it has a non-oem Matshita DVD-RAM UJ-845S drive. I had to take the 60GB hd out of Powerbook 2 and install it into Powerbook 1. The darkest thing happened, Powerbook 1's CD drive started working without a problem. Powerbook 2 is now with the 80GB hard drive and without a functional CD drive.
I put the 60GB HD back into Powerbook 2, and the CD drive started working again. I put the 60GB HD into Powerbook 1 and left put it together because it is fully functional. Now I have the Powerbook 2 that still has problems with the cd drive. I have tried using 2-3 other hard drives (they were from windows machines though), still no luck on getting the CD drive to work. If I disconnect the 80GB Hard Drive, then I can boot from the CD drive. I just unplugged the internal hard drive, and attached another Powerbook (this one is 17"), and booted the 17" inch one into firewire mode, then started the Powerbook 2 and booted into the firewire HD. Now I'm looking at the System Profiler, and I'm seeing the disc burner.
My conclusions to this issue: It seems like all of the hard drives, except the 60GB one, can't seem to run along with the cd drive. This is not a motherboard or a CD drive problem, because both of the 15" computers can have everything working, depending on which hard drive is used. I heard that these CD drives have an issue of being setup in Cable Select, instead of Master. I tried using different firmware (I had to plug up the drive to a PC laptop and flashed the firmware with D100 firmware http://forum.rpc1.org/dl_firmware.php?download_id=2094 ) Extra Hard Drive information: 60GB Hard Drive: Toshiba MK6025GAS, DC+5V 0.7A 80GB Hard Drive: Toshiba MK8026GAX, DC+5v 1.0A
when I connect my Garmin Edge 705 to the MacBook Pro (Mac OS X 10.7.4) the device won't mount as USB-drive instead it just goes into charging mode. This wasn't the case earlier with the MacBook Pro (>10.7.3) and this isn't the case with a MacBook running still on Snow Leopard.
Therefore I assume that something has changed in the Mac OS X 10.7.4 particularly in the Finder?
Info: MacBook Pro, Mac OS X (10.7.4), MacBook, Mac OS X (10.6.8)
Another one of those "external hard drive not recognized" problems: I am using a Mac Mini. The external LaCie drive is in one of those beautiful boxes designed by a guy named Porsche. It's connected via Fire Wire. I have my iPhoto library stored on it. It was working just fine for the past two days after I first connected it.
Now it does not show on the Desktop. It is identified only as "Unknown device" in "About This Mac." iPhoto doesn't recognize it. I've looked at the other threads on this subject here and have reset the PRAM. Disk Utility recognized it for a while and said the disk was OK. Now Disk Utility does not recognize it at all.
I turned off the drive and turned it back on. That resulted in an alarming series of beeps, almost like somebody was sending the Morse code symbol for "E" over and over again. I turned the drive off and then on again. Now the light goes on and the drive whirs nicely. I am using System 10.6.2. Or rather, at this point it is using me.
My PMG4(Power Mac G4) starts up very slowly. It was working one day, the next it was slow. What should I do? I know the battery needs to be replaced, but where to get a 1/2 AA?
Info: PowerMac, Mac OS X (10.3.x), Got it a few weeks ago.
Most of the time my G5 has difficulies starting up from the original installation-dvd provided with this computer. The drive is the standard Apple delivered LG/Hitachi GWA 4165B, seldom used and normally functioning well. The disk shows up on the desktop, but choosing the dvd as the boot drive in system preferences or using the C-key only results in a very short flash of the wellknown "question-mark system folder" and a startup from the hard drive: after a restart with the option key pressed even the boot manager cannot find a bootable optical disk at all. The problem might be connected to my observation that the computer sometimes looses contact with the ATA/ATAPI-bus; suddenly I cannot open the drawer anymore and system info reports that no optical drive was found. In this situation restarting doesn't help; I have to shut down the computer completely and after restart all is well again for as long as maybe the whole day or a view hours.GeForce 6600 LE
Powermac G4 MDD Originally had 2 hard drives -- 60GB (jumpered as master) and 40GB (jumpered as slave)
The 40 GB failed and the 60 GB was diagnosed as failing so I purchased used Seagate 160 GB ATA/100 Hard drive
I installed the new 160 GB Hard drive in place of the 40 GB HD and used SuperDuper to clone the still working 60 GB drive. The files were all copied to the drive and the drive showed up on the desktop as a hard drive icon, and it was recognized in the System Profiler. However, I could not select it as the startup drive from the System Prefs window.
I then took out the 60GB drive and replaced it with the 160 GB drive jumpered as cable select and now the computer won't start up (flashing question mark).
I have a Dual 1.8 G5 with the 8 slot memory configuration. I have 4 1gig memory sticks and 4 512mb memory sticks and I cant get the 512's to be recognized. I have fallowed the instructions on placement order but the 512's which were fine before are now not being seen.
I am a photographer. I use 4 X 1TB LaCie external hard drives to store my digital images. 2 as masters for different business segments and 2 as their back-ups. They are daisy-chained using Firewire 800. Recently my G5 has stopped recognizing one of the drives. Is there any way to get my machine to re-recognize the missing drive? I have rewired the four drives to see if there was a problem with the cabling, but this does not appear to be the case. I am coming up to the 1 year warranty period on this drive and need to get it back to LaCie if there is no other solution.
I hope the following problem is not too long winded. we have 3 identical Dual 1.8Ghz G5 Power Macs all with 30" Apple LCD screens, when any usb storage device is connected powered or unpowered, memory stick or hard drive, any pictures copied over to the mac are corrupt (lines through them, half the picture sheared off to the left or right, half the pic in another colour etc). f i connect the device to one of our older G4 machines or one of our new imac's there is no problem.
Just recently, I keep receiving an error, every couple of minutes or so, thats states: "A USB device is currently drawing too much power. The hub to which it is attached to will be deactivated." Now I have seen this same problem posted, but I have No Device hooked up at all. I have a 2 year old macbook pro 2.4 GHz, running 10.5 I've tried rebooting but it continues to occur.
I keep receiving this message, over and over, sometimes stacked 6 times or so, but the only issue is that I have nothing plugged into my USB at all. I tried restarting, but it didn't work.
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.
my macbook pro had an error in regards to something like a usb device has used to much power and has now been closed. Since then the mac won't recognise any device i put into the usb port
I'm using iMac with wireless mouse and keyboard.Once,I've unplugged flash memory directly without eject, USB error message shown on the screen,After that,although I've removed all of usb devices&cables on the connector,But USB error message always pop up periodically.I tried SMC reset, But issue still existed?
This is a problem that's been bugging me now for a while: when I plug in my iPhone or even a measly Usb Flash drive into my Apple Keyboard's USB port, a message appears on my Mac's screen saying: "A USB device can't draw enough power to operate properly. If the device came with a power cord, plug it into an electrical outlet. Otherwise, connect the device to a USB port on your computer." Does anyone know why the Apple Keyboard has a weird indented USB connector?
I get this strange message every so often, sometimes more often than other times. It says:
USB port drawing too much power. The device that is plugged into it will be deactivated.
There are only two things plugged into the USB-The keyboard and mouse. When I get this message, the mouse freezes. If I jiggle the mouse cable where it is plugged into the USB, it comes back and everything is fine until this message comes up again.
I was looking through the posts on here and the only solution I could find was to reinstall Lion, so I did, but it still doesn't work. Everytime I plug the mic in it says, "USB device requires too much power." I just bought the mic. I tried calling the Blue mic costumer service but no one answers.
i just recently got a keyboard i had back and plugged it in with a mouse i typically use all the time. when the keyboard was plugged in i got the typical message for "USB device drawing too much power, has been disabled…" i just want to re enable the mouse. it was quite obvious it was the combination of BOTH devices that caused this, but i'd really like to just get the mouse working again. I've Tried Resetting the SMC and ran the diagnostic but nothing has worked.
I have Macbook Pro Early 2011. recently my USB device stops working and I am getting message " The USB device drawing too much power has been disabled"and MacBook Pro getting over heated.
Here's the deal on an old MacBookPro Intel Core Duo 2.16 GHz! The disc can’t be burned, because the device failed to calibrate the laser power level for this media. Basic problem is the dvd burner doesn't burn!
I have a mac book pro OSX 10.7.5 I am getting this message when trying to burn a cd: The disc can’t be burned, because the device failed to calibrate the laser power level for this media.
My girlfriend has a 12 inch Powerbook G4. She noticed that the battery life was starting to dwindle. Tonight, she tried using it. It wouldn't power up. The battery indicator showed one flickering power circle. The adaptor has the green circle on it, indicating the battery has a full charge. However, the computer won't charge up.I've read the 12 inchers don't have separate PMUs. Could that prevent the machine from starting? She was using it earlier this evening, as she e-mailed me pictures from our vacation.
I have a iBook G4 laptop and there seems to be something very wrong with it. It started a few days ago just randomly. I was reading something on the internet and the screen went black on me, but the power was still on (I clicked CAPS LOCK to see if there was power). I then proceeded to push the power button and the power went off. When I pressed the power button again to turn it on, it made that internal noise it always makes and then the fan came on, and wouldn't turn off. There was no picture on the screen at all. Completely dead. But there was power, because when I clicked on the CAPS LOCK, the light came on). I tried pressing on the power button for at least 15 seconds and even went as long as a minute, and the power didn't go off.
I had a bad power surge (USB hub that was plugged into the back of the display had the wrong power cord plugged in... very stupid mistake I know!!) take out my 23" Cinema Display. The display shows no sign of life (no power light, etc) and the brick has been tested and is OK. My local service place says that they will have to send the display back to Apple which means a minimum of $400 for repair so I'm wondering if anyone has had a similar issue that they resolved successfully? The service place suggested that Apple would replace the logic board but is there any way to test to see if this is the main issue? I have seen logic boards sold separately online but would be hesitant to buy it without know that this would fix this issue.
