Testing done, for now. I've re-posted my
BIOS snapshots.
My test configuration is:
- Thunderball system disconnected from the IOGear KVM switch;
- HP ZR24W IPS monitor;
- Targus BT USB dongle;
- Apple USB full size keyboard and Logitech USB mouse connect to the Front Panel
- Apple Wireless keyboard, Mighty Mouse and TrackPad;
- USB 3.0 external drive with SanDisk Extreme SSD;
- USB 2.0 Thumbdrive; and
- Thunderbolt to FW800 Adapter with a FW800 to FW400 Adapter without anything connected.
I tested thelostswede's recommendation to disable Wake-on-LAN. It is still necessary.
I tested sleep/wake-up from the Apple menu > Sleep with XHCI Mode = Smart Auto and Auto and Int CPU PLL Overvoltage on Auto or Disable. Sleep/wake-up works fine with either BIOS parameters' settings. The USB 3 SSD external drive worked fine after sleep's wake-up after I clicked on the OS X message stating that the USB drive has not been properly ejected before "shutdown". So, as a long time Mac user, I've always ejected and shut down my external drives before sleep anyway. No big deal.
I was only able to enter the BIOS using the USB keyboard, but, once inside the BIOS, all the BT devices worked. This was, again, with XHCI Mode = Smart Auto and Auto.
Consequently, with the limited testing I've done (sleep/wake-up, serf the web, watch a video with VLC, etc.), I can not see the difference in system performance with arehep's XHCI Mode = Smart Auto nor Auto and Int CPU PLL Overvoltage on Auto or Disable on my system described above.
arehep, et al, Please give me feedback on your experiences with your configurations.