Biostar m7viw ram upgrades

I have a Biostar mobo, model m7viw, which has two banks of ram. One is for SDRAM, the other for DDR. I had 2 512mb sticks of SDRAM pc133 installed and wanted to upgrade to the faster, bigger DDR.

I bought 2 sticks of 1 gig Patriot memory, DDR 400.

http://www.newegg.com/Product/Product.asp?Item=N82E16820220084

When I put them in last night, my box spontaneously restarted after only a few minutes. Testing it with only one installed had the same result, although it took a little longer for the restart to happen. I didn't run any memtests because I figured the memory was obviously the problem.

Now before I RMA the memory, are there settings in the BIOS I need to change for this memory to work (going from SDRAM to DDR)? Is this size/speed memory even compatable with this mobo?

Thanks for any help.