On Thursday, August 23, 2001, at 10:47 AM, <[EMAIL PROTECTED]> wrote:
> 0gig 50 pin SCSI drive How do I install this as a secondary drive in
> the PowerMac 7600?
Hello
Here is some basic, simplified information based on my personal
experience in mounting 2nd hard drives in both my 7600 and 7500.
****Mechanical Criteria Before You Do Anything
Mounts into the 7600 lower bay (compartment)
FIRST ; get a ruler and measure the outside footprint of your hard
drive. The lower bay of the 7600 takes a 3.5 drive: ~ 4inches wide,
51/2 inches deep and no more than 1.6 inches high(1/2height); but a 1/3
height(1 inch high) is better from a heat standpoint . If your hard
drive does not meet this criteria, give it back and do other things
with your life(mac life, that is). Note: your stock(top) hard drive is
a 1/3h unit. Duplicate this size.
****Electrical Cabling
Apple has built-in two internal ,spare connectors for adding a second
drive in the front lower bay; a 4 pin DC power and a 50 pin SCSI.
After removing the cover, find the ribbon cable going to the top hard
drive. Follow it back and you will see the built-in, 50 pin SCSI
connector ,molded into the ribbon cable. It looks like a cable
stiffener, but its not . Next, look into the rear area of the lower bay
and you will see the loose 4 pin power connector.
****Mechanical Pre -Mounting Requirements
Sled
You will have to purchase a plastic hard drive "sled" that mounts to
your hard drive. via screws .This HD/sled combination then interfaces
with the lower bay plastic rails for insertion. Inspect how the upper
hard drive is configured and do the same.
.>>Do I just need to set the jumpers to slave and plug it in?
What is this "slave" reference?
There is no master-slave configuration with your 7600 SCSI Bus 0
(only with IDE stuff) .
Are you sure this "gift" is a SCSI drive and not an IDE drive?
SCSI requires Only termination and ID jumpering
This second SCSI hard drive must be configured to be unterminated
together with a
non conflicting ID. Open up The Apple System Profiler and check SCSI Bus
0 to identify what the stock hard drive is set for. If its 1 ,set the
add on HD for 0, or vice versa.
*******You will have to go to the hard drive manufacturer's web site for
jumper details
>>Will the MacOS give me an option to format the hard drive for the Mac
Operating System.
Yes.
After installation is complete, boot up on the primary drive. Find the
Utilities Folder and open up " drive setup". Hit the "initialize"
button/ A list of drives that can be initialized (formatted) will be
displayed and your drive should be there. You may have to first mount
the drive via the "mount' command found in the Finder pulldown menu.
Note:
Actually, if it has mpunted , you will have noticed an icon on the
desktop at bootup, but do not bet on it.
albert
BTW. Double check that you have a SCSI drive and not an IDE drive
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