G3 Macintosh is the earlier computer system. In the mid of 2000s, Mac officially discontinued this series of computer system. It is because of switched off G4 processor. However several old G3 Mac were running Mac OS X. It means those Macintosh users cab access disk utility. It (Disk utility) is a very handy program that allows Mac users to repair Mac hard disks, re-partitioning Mac hard drive and confidently clean up Mac hard drive.
With the help of “Disk Utility” you can wipe G3 Mac hard drive. To wipe Mac you need to follow the given steps such as: -
Step 1: Insert the Disk Utilities disk, usually Installer Disk 1, into your Mac and wait for the disk to mount.
Step 2: Restart G3 Power Mac with pressing “C” key
Step 3: Select the “Installer menu” and select “Open Disk Utility“.
Step 4: Now choose “Erase” and press “Zero All Data” button. This will completely wipe your G3 hard drive of a G3 Mac running OS X.
Step 5: Finally click on the “Erase Disk” button and still wait for a few moments till the hard drive of the G3 Power Mac to be wiped clean.