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My mac pro 1.1 randomly shut down and on investigation I found that the CPUB led light was lit red. Searching through the forums I found some directions to remove the CMOS battery.
After doing this, everything boots up fine without the battery in, so I decided to get a new battery and now the OS just gets stuck in a booting up loop with the chime continuously going off.
Any ideas?
Mac Pro
Once you install a new battery, the Parameter RAM/Non-Volatile RAM can remember across a power outage.
But what it contains at this moment may be garbage.
Use this article to reset the PRAM/NVRAM:
Reset NVRAM or PRAM on your Mac - Apple Support
.
Once you install a new battery, the Parameter RAM/Non-Volatile RAM can remember across a power outage.
But what it contains at this moment may be garbage.
Use this article to reset the PRAM/NVRAM:
Reset NVRAM or PRAM on your Mac - Apple Support
.
Looping start up chime
