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PowerBook G4 wont does not recognize USB 2.0
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Forum Regular
Join Date: Nov 2003
Location: North Shore, HI
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every time I hook up a USB2.0 device to the USB ports on my laptop it does not recognize it. I have a external hard drive that I want to use but it won't mount. The external drive mounts on my Pismo but not on my G4 1.25GHz powerbook. However, my printers are recognized when I plug those in. Am I doing something wrong? The external drive only has USB ports not firewire.
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Last edited by laieboy; May 26, 2005 at 03:47 AM.
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Mac Pro 3.2 GHz Dual-Quad Core • iMac 2.66 GHz Intel Core 2 Duo • MacBook Pro 15" 2.0 GHz i7 Quad Core
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Moderator  Join Date: Oct 2001
Location: San Jose, CA
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Are you using an external AC adaptor with the hard drive? Chances are the Powerbook can't supply enough power to the drive.
Steve
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Forum Regular
Join Date: Nov 2003
Location: North Shore, HI
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The drive is bus powered. Funny my G3 PowerBook runs it fine but my G4 PowerBook can't.
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Mac Pro 3.2 GHz Dual-Quad Core • iMac 2.66 GHz Intel Core 2 Duo • MacBook Pro 15" 2.0 GHz i7 Quad Core
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Moderator Join Date: Oct 2001
Location: San Jose, CA
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Yes, it may be able to be bus powered, but the USB from the Powerbook may not be supplying enough juice, as I said. The Pismo may have been able to supply more power on its USB 1.1 ports than the newer machine. Try an AC adaptor and see what happens.
Steve
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Forum Regular
Join Date: Nov 2003
Location: North Shore, HI
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thanks for the replies. I'll just return it and get a firewire case with power supply, the one I have now does not have a power supply.
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Mac Pro 3.2 GHz Dual-Quad Core • iMac 2.66 GHz Intel Core 2 Duo • MacBook Pro 15" 2.0 GHz i7 Quad Core
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Fresh-Faced Recruit
Join Date: Sep 2005
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even i'm using an external usb hdd it mounttttn virual pc but not on mac osx10.4.2
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Fresh-Faced Recruit
Join Date: Mar 2001
Location: Happy Valley, Labrador, Canada
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I recently purchased a USB 2.0 external drive (portable) and it won't power up properly on my G4 PB. I hear a slight clicking, but the drive won't spin up. The Apple Tech there should be no problem with the port's power. It apparently worked fine for the recent owner.
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Fresh-Faced Recruit
Join Date: Nov 2005
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I have a PB G4 17", and I'm experiencing the same problem with my USB 2.0 external hard drive, as well as my iPod via USB! An Apple priduct specialist is currently investigating on this problem, but this this seem to be an issue taht is new to them. I brought my PB to an Apple Store Genius Bar, and we tried other PB 15" and 17" on the floor w/ iPod, PSP, and hard drive via USB 2.0, and they experience the same problem. 12" and iBooks, on the other hand have no problem because the use of a different motherboard than the 15" and 17". The only suggestion Genius Bar gave me was to use two USB cables or an AC adapter for the hard drive, but sometimes that didn't generate enough power. Rebooting your computer would be a solution to provide sufficient power to your USB 2.0 gear. Something seems to be constraining the power supply when you run the computer for awhile. The Apple product specialist had given me something to run the diagnostics on my computer. They're evaluating results now, and I should be hearing from them shortly. Please report this issue to Apple. I think they need to hear from mpre people about this problem. Speak to a product specialist if you can. Tech support in the G4 division is no help unfortunately.
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