Well I'll have to pull the case off and whatnot to tell for sure, I ordered it from newegg who listed it as revision 5. It'll take a bit til my phone calls calm down here until I can crack it open.
As far as changes, I noticed the sluggish performance immediately after the bios flash. No changes were made, I've run everything at default since the board came, all stock, no voltage bumping, no overclocking, whatever was default.
Now there is a hiccup. The reason I bios flashed was because when this board came, windows was not detecting the onboard ethernet. Also in the bios, in whatever section that is where it's supposed to pick up a signal, it didn't. I haven't been able to flash the bios previously, so I went out and bought a gigabit pci ethernet adapter for the time being, and disabled onboard in the bios. However I kept the receipt for it should I be able to get the onboard to work. Well, I flashed the bios hoping to get that working (never know, right?).
Anyway, after loading defaults, I forgot to turn off the onboard. Windows went through a fit trying to find the onboard again like it did originally during the system build, and that's when I noticed the sluggish behavior (I doubt the enabled onboard nic was responsible for the sluggishness, just a coincidental happenstance.) I rebooted and killed it in the bios, all was good, except things lag.
When I say lag and things are sluggish, sometimes there's a serious delay trying to open files or programs, literally waiting seconds where before there wasn't. Other times... it's that sluggish that only the "enthusiast" crowd will recognize. You know what I mean? that quarter second delay in the UI, that extra pause clicking the start button or waiting for a mouseover to work, that extra second explorer takes to open, those weird things that tell you that something isn't right, but you've got no idea what.
