On Sep 4, 2004, at 9:00 PM, Art Landrey wrote:
Recently I purchased an enclosure that is labeled "IDE to USB 2.0," inserted a hard drive and connected it via USB cable to my original Bondi iMac 233. The drive (a 13GB Maxtor, which I had previously replaced in my newer iMac) showed up on the desktop immediately even though I hadn't yet changed the jumpers -- a pleasant surprise, since I didn't have any schematic for switching from the master setting anyway!
Yep. You don't need to change it from master to slave, because the drive is on a new bus anyway.
The "master, slave" jumper settings are only valid when more than one drive is on the same bus on IDE. You are using 2 buses, one is the internal IDE bus that has one drive(master).
The other bus is the USB bus and it has its connection to the 13gb drive via a IDE to usb converter.
It is like a whole other bus, that has its own master.
But USB is not the primary bus when booting the iMac.
Each bus, wether it is internal or external, has its own master slave thing
In short the imac looks to the master on the internal bus, not the master on the usb bus when first booting up
Master setting on a drive wont mean it is the primary master.
Primary master is usually on the first bus inside the computer.
One IDE bus can handle 2 drives , thats it.
Then, when I ran Disk First Aid to verify the disk, "USB v2.1.1" appeared after the name of the drive -- another surprise, since I was expecting to see only "USB 1.(something)" on the screen. I know that USB 2 is backward compatible, but where would I see that, in fact, the iMac is only running at the USB 1 speed?
Your USB2 to IDE interface for the IDE drive has its own device specific identification built into a memory on the device chip. So its like when disk first aid runs, it looks for drives on connections, and when it finds a connection like your usb/ide converter, it asks the device,"who is out there?"
And your device says "I'm a (your drive name here) USB v2.1.1"
It is an identifier , not an indicator of throughput speed of the connection.
peace carter
Thanks, Art iMac DV SE (Graphite) 400 MHz PowerPC G3 w. 768 MB SDRAM 120 GB WD 1200JB Caviar internal hard drive Mac OS X 10.3.5 (Panther) & OS 9.2.2 (Classic)
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