Jumper settings for new hard drive

i'm installing a WD Caviar 120GB ATA-100 drive on my parents' 450mHz G4. The WD intallation drive indicates a need to place a jumper over pins 3 & 4 of the new drive, but need a jumper be used on the Mac's old drive? It's only 6GB in size and is what i'd like to use as the master drive. i believe the jumper on the old drive is over pins 5 & 6. Thanks!

iBook, Power Mac Mac OS X (10.4.8)

Posted on Dec 22, 2006 9:40 PM

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5 replies

Dec 23, 2006 6:05 AM in response to noirtest

You should be able to check the manufacturer's web sites to determine jumper settings for master or slave on each drive. Often the drive info decal will have that information on it. Regardless of Mac or PC PATA drives need to have the jumpers set to either master, slave or cable select...and not every machine supports that. Set your new jumpers to slave and install the drive, format it using disk utility and you should be good to go.

Dec 24, 2006 12:37 PM in response to SeaPapp

The new drive has the proper jumper setting, is in the middle (and correct) ATA cable position, and is recognized and has been formatted by the computer. Unfortunately, when i boot the G4 the blinking globe appears for about ten seconds, and then the "no OS" folder appears for another ten seconds before OS X successfully loads and the computer operates normally, with both drives functioning fine. Almost a success story, but it makes me nervous. Thanks for all the help so far!

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Jumper settings for new hard drive

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