Q: Holding the power button does not work
I've got a Mac Pro that stops recognizing my BD-ROM drive after it goes to sleep. I've been trying to reset the PRAM and NVRAM, per applecare's suggestion, but everytime I plug my Mac Pro in, it automatically starts up. I've turned off the "automatically restart" option in System Preferences, but it's as if all of that is stuck! So, I'm trying to reset the firmware using the firmware restoration CD, but when I hold down the "power" button, the computer's LED light flashes much more than three times, the computer gives a non-chime beep, then gives the chime, and then starts up using the Macintosh HD like I'm not holding down the power button.
Is there another way to get to the point where I can use the firmware restortaion CD? It's driving me crazy. I thought it was because I was plugged into an Uninteruptable Power Supply, but I plugged it into a normal power strip and there was no change.
Any help?
Mac Pro, Mac OS X (10.7), 2009 2.66 Ghz Quad-Core Intel Xeon
Posted on Apr 8, 2012 9:14 PM