---------- Original message ---------- Subject: Re: USB Drive Issues Date: Tuesday, 25. October 2011 From: Michael McMurtrey <[email protected]> To: [email protected] > By "will not work" I meant "will not mount" when connected through > the USB hub. The only activity is a repeated chirp and a flashing > yellow light at the back of the drive. I've tried a different USB > cord to connect it, but that makes no difference. The drive mounts > normally when connected directly to the computer (not through the > keyboard ports), and Disk Utility reports all is well with it. The > power supply is not making any noises, is not overheating, and does > not smell funny. > > The drive was reformatted before use and never gave any trouble until > this recent hiccup. I normally left it connected all the time, as I > put the computer to sleep every night instead of shutting it down > completely. > > The only other USB devices I have are an HP LaserJet P1006 printer > and an HP DeskJet D1415 printer plus an assortment of USB flash > drives. All of these function normally, regardless of the port on the > USB hub they are plugged into, whether the hub is powered or not. > > System Profiler reports the following about the built-in USB: > > Host Controller Location: Built In USB > Host Controller Driver: AppleUSBOHCI > PCI Device ID: 0x0019 > PCI Revision ID: 0x0001 > PCI Vendor ID: 0x106b > Bus Number: 0x19 > > A USB 2.0 card, however, sounds like a good idea. Where do I get one? > > > Michael McMurtrey > Carrollton, TX
The AppleUSBOHCI indicates that it is USB 1.1. OHCI and UHCI are USB 1.x, whereas EHCI is USB 2.0. To get USB 2.0 you can use any PCI expansion card that internally uses a NEC chip. But most vendors don't tell you what chip they use, so you may have a hard time finding one that does (without it being officially Mac compatible). I use a D-Link DU-520 in three of my Power Macs. As one of a few it even officially supports Mac OS X. ftp://ftp.dlink.eu/datasheets/DU-520.pdf ftp://ftp10.dlink.com/pdfs/products/DU-520/DU-520_fab.pdf It costs about € 20,-- in Europe. Cheers, Andreas aka Mac User #330250 -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
