G4 hard disk jumper settings

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1

I have acquired an 80gb Seagate disk with Tiger pre-installed. This is to replace a 30gb Quantum Fireball which runs Panther.

The G4 Mac has uptil now had two disks, both Quantum Fireball 30gb disks. One had the OSX and apps on it, the other had OS9 and my work files on it.

If I remove the disk with OS9 on it and install the new Seagate 80, the Mac boots into Panther via the old QFireball. Within the system prefs I can select the new Seagate as the startup disk and the new disk then works fine running Tiger.

However, if I remove the disk with Panther on it and install the new Seagate 80 next to the old QFireball with OS9, the Mac boots into OS9. Within the statup disk section of the OS9 control panel, the Seagate disk is not seen as a disk option.

I’m pretty sure this is a jumpers setting thing, and that I’ve got it all wrong. Trouble is, I have no idea how to set the jumpers! Either that or maybe the order of disks in the chain is important? I put the new Seagate with Tiger on top of the old QF OS9 disk, so thought the Mac would see that first in the chain?

Jumper settings of my disks can be seen at:

http://www.stlawrence.free-online.co.uk

cheers
Hugh

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2

Try to find whatever setting is called “Cable Select” on each drive and set it that way on both drives. Most drive manufacturers have a pretty decent Web site full of specific drive configuration options. Try Googling the model number of the drive.

Note that this setting won’t work on a G3 or a “Yikes” G4, but it should work on every machine after that.

Walter

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Thanks for that, Walter, got it working. As it happened the cable select setting was the same for both disks. With the new Seagate at the end of the chain (on the black connector), this automatically fired up first - just the ticket.

cheers
Hugh

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