Apple Hardware Test Read Me

 About Apple Hardware Test Apple Hardware Test diagnoses and detects problems with your computer's internal hardware components, such as the logic board, memory, modem, video RAM, and AirPort card. It does not check external hardware components, such as USB devices or FireWire devices, and it does not check non-Apple devices, such as PCI cards from other vendors. Apple Hardware Test also does not check for operating system (OS) or other software- related problems, such as application or extension conflicts. Apple Hardware Test for Power Mac Version 2.1 is distributed with the Apple Power Mac G5 computer only. It does not work with other computers. Using Apple Hardware Test Before using Apple Hardware Test, disconnect all external devices except the Apple keyboard, mouse, display, and speakers. Remove any non-Apple cards, such as PCI or AGP cards, that were not included in the original configuration of your computer. You should also disconnect the Ethernet network cable. 1. Restart your computer from the Software Install and Restore DVD (the disc that should currently be in the optical drive). 2. Hold down the Option key until a list of available bootable devices appears. 3. Select Apple Hardware Test and click the right arrow. The Loading icon then appears. Loading takes about 45 seconds. 4. When the Apple Hardware Test main screen appears, follow the onscreen instructions. If your computer has a hardware problem, Apple Hardware Test can help identify the problem. If Apple Hardware Test detects a problem, it displays an error code. Make a note of the error code before pursuing support options. If Apple Hardware Test does not detect a hardware failure, the problem may be software related. Known Issues If your Power Mac G5 has more than 512 MB of RAM, the Extended Test may take significantly more time than indicated on the screen. Your Power Mac G5 can use memory modules or DIMMs even when the Power On Self- Test, which is run when you turn the machine on, detects part of a module as being bad. When you start up your computer, Apple Hardware Test reports failed memory modules in the Hardware Tests panel. While the video RAM is being tested, the screen may appear blank or appear to be turned off for extended periods of time, depending on how much video RAM is installed. This is normal. When you click the Restart/Shutdown button in Apple Hardware Test, the Software Install and Restore DVD is not ejected. Either manually eject the DVD or use Mac OS to eject the DVD. If your Power Mac G5 has an ATTO Ultra SCSI PCI card installed, it takes approximately 1 to 2 minutes for Apple Hardware Test to start up because Apple Hardware Test is scanning the card for SCSI devices attached to the computer. Recommendations Apple Hardware Test is one of several tools and procedures you can use to resolve problems. Here are some steps that may help you resolve problems. Please back up your data before you perform any of these steps. 1. Turn the comp…