Will these work together?

Since you simply asked if they are compatible I will simply say that yes they are.

ya, but do you really want to run that slow, whats the PC going to be for.. i hope you dont say performance

whell, since it was AM2+ you could get a phenom quad at 3ghz. i mean, 1.9 is considered slow nowadays, i see nothing wrong with the board. if all you are doing is simple stuff like IM, or word proccessing and internet you will be satisfied but dont exspect to get good performance is modern day games.

i just read the review for it and it is overclockable and the guy sayd he hit 2.2 with no temp change so it will be ok but still dont exspect a ton for high performance programs.
but ya, what the blood raven says, the Motherboard is open box so beware.

I also like this board since it has a cuda enabled GPU chipset. I'm kinda of a seti@home buff.

Yes, of course they will work together. If you're patient, Newegg regularly puts the 5000+ on sale for $49.99. That can usually be overclocked to 3.1GHZ. That would be a lot faster than the 1.9MHz processor.
Also, are you taking into account you are going to need DDR2 memory? Not a big deal. 4gb of DDR2800 can be had for as low as $30.

I'm not sure I would go with anything slower than 2.4 ghz right now. Most modern games will require at least that much speed.

An improvement? Yes but incremental. You will be wanting another proc in 6 months.

Get the 5000 BE