Some questions

I have just ordered:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813182095
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227199
http://www.computerhq.com/INTEL_CPU...X80574E5410A/hardware/partinfo-id-951910.html

I already have an 8800gts and 2 74GB 15krpm U320 drives, which will be running in RAID0.
I plan to get a case and PSU from a local computer store and use an optical drive I already have.

So, here are the questions:
1. Will the unregistered, non-ecc ram work in the mobo?
2. Does the mobo NEED 2 CPUs, or will it work with only one in there?

It isn't too late to change or cancel the orders if I need to, but it will be soon. If you know, please respond quickly (or PM me.)

Here is a link to the page where you can download a manual.
http://www.supermicro.com/products/motherboard/Xeon1333/5000X/X7DA8.cfm
I have read it already, and it doesn't say that you CAN use non-ecc,
so I would tend to say that the memory you ordered will not work.
As far as the CPU's, I believe that one should be ok but again, I am not sure.
I would cancel my order and call SuperMicro to be sure.