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Strange update

I've been using the system for more than an hour, including through three reboots and a power off.

I got home from the office and turned the system on. I got the usual (for me) "You need to reboot your computer..." message. But the "spinner" was still spinning. A few minutes later, my desktop popped up over the "crash" message. I proceeded with the software updates accordingly.

I had a few problems with the reboots, and verbose mode showed it having to do with CPU1. Each time that happened, however, I was able to boot just fine--the system was just a bit slower, though (as if it lost half it's power--or a full CPU) and my Bluetooth dongle wasn't detected.

I removed Bluetooth and plugged in the Pro keyboard and mouse. I've been through a few reboots without problems.

Hopefully, this is it!
 
a small thing that is worth checking but check what speed is marked on the g4 die's it's marked in gold text because the person that sold it to you may have overclocked it.
 
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