(There's no video for Apple Hardware Tests (AHT) yet. Please contribute to MR and add a video now!)
Collection of Apple Hardware Tests.
Apple computers ship with a pre-installed suite of hardware diagnostic tools, known as Apple Hardware Test (AHT).
To create a bootable CD either use Disk Utility or right click on the DMG and use the "Burn Disc Image to Disk" opo-up option.
AHT.zip (210.66 MiB / 220.9 MB)
Apple Hardware Tests archive from GitHub / Zipped
Architecture: PPC + Intel
Emulating this? It should run fine under: QEMU