Howdy, I've got a dual powermac g5 where the fans spin constantly. This started happening immediately after the power supply was replaced under warranty. Googling seems to imply that I need to run a CPU calibration from the Apple Service Diagnostics CD. Does anyone know where I can find such a beast? thanks.
It's likely this is available only to a Certified Apple Hardware Technician. You may have to take it to your local Apple Store or service spot.