St3160023a - Seagate Barracuda 7200.7 Plus (ST3160023A) 160 GB Hard Drive

check cables out and make sure that the driver is installed

i have not heard of anything like that. the only thing that would make a difference is the connection. yours is sata i believe. here is a link that tells everything about that drive.

http://www.seagate.com/ww/v/index.jsp?locale=en-US&name=Ultra_ATA_160_GB&vgnextoid=cd5cb1774aafd010VgnVCM100000dd04090aRCRD#tTabContentSupport

i do believe you would have to wipe the drive and format it and treat it like a brand new drive when you install it.

Click on the following link
http://www.seagate.com/ww/v/index.jsp?vgnextoid=66cc26a2c88ef010VgnVCM100000f5ee0a0aRCRD&locale=en-US&reqPage=Legacy

Chris Thrash
B52Computers

Have you tried SeaTools or DiscWizard? Both are provided by Seagate and can be downloaded via the following link:

http://www.seagate.com/ww/v/index.jsp?locale=en-US&name=downloads&vgnextoid=51e092db8a13d010VgnVCM100000dd04090aRCRD

Hello! You know how to take off the HDD from its casing?  okay, No. 1 error is due to loose of connections. All you have to do is to dismantle it. And be sure to memorized where its original position. You need to set the jumper settings of your HDD to master.  next, be sure all the connections are intact and well connected, then assemble it again. next, be sure you are using Power Mac g4 CPU 1.2Ghz with at least 1GB of memory or Higher than G4 units, cause 300GB couldn't be detected lower than that, then plug it in. if it still didn't work out, try to ask help from service center near you to assist you.

The IDE version of a 160gb is a:

Seagate Momentus 160GB IDE Laptop Hard Drive
Part Number: 9S1034-506
Model Number: ST9160821A
5400RPM

The SATA version is a:

Seagate Momentus 7200.2 ST9160823AS 2.5-inch 160 GB hard drive