[G4] Mixing internal drives

[Philip J Robar]

On Mar 28, 2007, at 4:37 PM, JayB wrote:

> Mine:  500 APG (sonnetted up to 1gig), 1 gig ram.
>
> Built @ Apple with 2ea internal 18gig Ultra SCSI drives.

Not sure what you mean by this.

> One SCSI died.

Did you remove the dead drive and was it the last drive on the cable?  
In other words is your SCSI chain still properly terminated?

> On advice I got here, I bought a Maxtor 100G ATA (it's really a  
> 112Gigs) and plugged it into the Ultra ATA port on the motherboard.

How is that drive jumpered? Is it the only drive on the cable? If so  
is it the last drive on the cable?

> Finally, I pulled the plug on the SCSI drive and normal behavior  
> ensued.

As I implied above I suspect that your SCSI chain is no longer  
properly terminated.

> Question: Is the trouble because the bus doesn't like having BOTH  
> ATA and SCSI on the bus? Or is it because the combined gigs is  
> beyond 128?

No and no.

> Or something else?

Yes. :-)

Phil
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