powermac 7200 hdd

Michael Breuer hfs-interest@ccs.neu.edu
Wed, 09 Aug 2000 20:09:46 -0400

I'm sure your local mac expert tried this... but just in case, try zapping PRAM.
I have had a Mac which wouldn't boot of CD, disk, whatever... turned out the PRAM
was corrupt... If I recall correctly, that was just after hot-swapping a CD-R.

michael.conry@softhome.net wrote:

> I am not sure if this is exactly on-topic, but i would be very grateful of any
> help you can offer. Basically, i think i have crippled the scsi controller on
> my boss's powermac 7200. (This occurred while trying to hook up an external
> scsi cd-writer to do some file movement to his new machine. I turned the
> burner on during boot, and also had it terminated. Both these are no-no's for
> the machine (although i am consoled by others that scsi SHOULD be hot
> swappable, and termination should not damage hardware). Local mac expert could
> not get it to boot off cd, so looks like controller is knackered.)
> Anyway, i have no access to other macs, and no way of knowing if the hdd is
> intact or not. What i do have is my linux box (Dell precision 410) with
> Adaptec 2940 U2W and Adaptec 2940 UW SCSI controllers on the motherboard. I
> know from reading around, that it should be possible to mount the disk if i
> can get it to work in the pc. what i don't know is how safe it is to do
> something like this (is the disk real scsi). Will i end up with two broken
> machines rather than one if i connect the drive to the pc controllers?! Things
> like the apple advice not to terminate external devices due to the internal
> hard drive being terminated do not give me confidence (seems at odds with all
> other scsi advice i have found).
> I understand nobody can guarantee anything, but if anyone subscribed to this
> list thinks they know something relevant (like that i should not even think
> about this) then i would appreciate the advice.
> thanks
> michael