Apple Mac Mini A1347 Macmini5,1 password reset

Have you forgotten your password for your Mac device? Are you one of those users of Mac device who have forgotten their password - and it is quite coincidentally your only administrator user? Most of the Mac device users don't know how to recover Mac password, so do not give up hope when there is a solution for it! You can quickly and easily save your user and data by following these steps:


Start Mac from the Mac OS X Install DVD or a USB connector where the operating system is on. This is done by holding C (using the DVD) or ALT (using the USB connector) while you press the power button.

When the machine is started, go to the top menu and select Tools -> Reset Password.

Select the hard drive the user is (typically Macintosh HD).

Select the name of the user from the pop-up the menu.

Type a new password in the fields.

Click Save to save your new password.

Close Reset Password.

Close the Mac OS X Installer to restart the Mac.

After following the above given steps you can successfully recover your forgotten Mac device password. If you are still facing any technical issues in how to recover Mac password then immediately contact to Apple technical support service provider. You will get the best technical help from there. The tech support experts are well versed with Mac errors and they can offer you the most appropriate technical assistance. http://www.fixtechnicalsupport.com/apple-technical-support-number

check for caps

ifixit.com

Hi I'm Peter , You can change your user password by going in with your administrator password. Here are a few helps https://iforgot.apple.com/password/verify/appleid and see
http://support.apple.com/kb/HT1274 and

and Kappys answer
https://discussions.apple.com/thread/4251616?start=0&tstart=0

In OS X Lion or later, you can reset your user password with your Apple ID.

In Mac OS X v10.6.8 or earlier, follow these steps to reset a password when there is only one administrator account on the computer, or if the original administrator account needs a password reset. "Original" administrator account refers to the one that was created immediately after installing Mac OS X. If the original administrator password is known, that administrator account may be used to reset the passwords of other administrator accounts using the steps described above. These steps require an optical drive; if your Mac does not have an optical drive and you have a Mac OS X v10.6 Install disc, see below.

1. Start up from a Mac OS X Install disc (one whose version is closest to the version of Mac OS X installed). Usually, you can start from the disc by putting it in your computer, restarting, and holding the C key. Or, put it in the computer and click the Install or Restore icon you see in the disc's main window (after which the computer will start from the disc without you needing to hold C). Or, you can use Startup Manager or the Startup Disk preference pane to select the Install disc.
2. Choose a language, click the arrow button to continue,
3. Mac OS X v10.6 or later: Choose Password Reset from the Utilities menu.
   Mac OS X v10.5 or v10.4: Choose Reset Password from the Utilities menu.
   Mac OS X v10.3: Choose Reset Password from the Installer menu.
   
   Tip: If you don't see this menu or menu choice, you're probably not started from the disc yet.
   
   Note: The default keyboard layout is U.S. English while started from the installation disc. If you use a keyboard layout other than U.S English, use the Input menu (the flag icon on the right side of the menu bar) to select the desired layout before typing a new password.
4. Select your Mac OS X hard disk volume.
5. Select the user name of your original administrator account.
   
   Important: Do not select "System Administrator (root)". This is actually the root user. You should not confuse it with a normal administrator account.
   
   
Hope this helps.

install system disk and go through disk utility and then reinstall os from system disk.

reboot the mac pressing C key during startup when having the mac install disc that came inside the box with the computer inserted

Customer forgot password
If the customer forgot the password for the computer:
1. Insert the Software Install and Restore DVD.
2. Restart the computer while holding down the C key on the keyboard.
3. When the installer appears, chose Reset Password from the Installer menu
4. Follow the on-screen instructions.


Here is the link to the user manual and below that is the factory service manual...

http://manuals.info.apple.com/en_US/PowerBookG4_15inch1GHz-867MHzGettingStarted.PDF

http://tim.id.au/laptops/apple/PowerBook%20G4%20(15-inch%20FW800).pdf

You should read the Apple Support article on changing/creating a password for the admin account. From there you can control the other accounts. BTW a common mistake is to have the Caps Lock key on. -Ken