Chosen Solution
I know this type of question has been asked here but id like to explain my issue. Power Mac G5 has been sitting on the shelf of a business for at least 3-4 years with no use or ever being powered up. I get it today and power it up but immediately the fans run high and theres no video on the screen. The power light blinks white twice constantly. I took out all of the ram - same exact thing (and no beeps even). I take out all the ram and pram battery - no change. I held the pmu button - no change. What am I probably looking at? May just need a new pram battery since it was sitting dormant for so long? logic board? psu? any help is appreciated.
The fans kick into high by default when a temp sensor fails to keep from cooking the CPU or other components like a GPU. You have damaged RAM, and possibly other problems. • 2 Flashes: No RAM is installed or detected (could be bad RAM). • 3 Flashes: Incompatible RAM types are installed. • 4 Flashes: No RAM banks passed memory testing. • 5 Flashes: No good boot images are detected in the boot ROM (and/or there is a bad sys config block). • 6 Flashes: The processor is not usable. Replacing the PRAM battery is good idea - the battery is recharged when the computer is plugged in, but the life of a battery is at most 5 years. PRAM Information includes: Speaker volumeScreen resolutionStartup disk selectionRecent kernel panic information, if any If you experience issues related to these functions, you may need to reset the NVRAM or PRAM. Resetting the SMC or PRAM is not a “fix” it should only be done as part of a troubleshooting process. If this answer is acceptable please remember to return and mark it.
