I recently ordered some memory for several of my optiplex 320 machines. I ordered these straight through Dell, and they are listed as 1GB Optiplex 320 sys memory on the invoice. The chips themselves are labeled 1Rx8 PC2-6400U-666-12. When I remove my existing 1 gb sticks and put two of these in, I receive the 1-3-2 no post code. When I use just one of these new sticks I recieve the 1-3-2 no post code. When I use the old stick in slot 0 and the new stick in slot 1, I sometimes boot, but with blue screens. With the new stick in slot 0 and the old in slot 1, I get the 1-3-2 no post code. The system works fine with just the old stick in it. These symptoms occur with any of the 4 new sticks I recieved from Dell.  I did flash the BIOS to the most recent release.

I find it a little implausible that all 4 sticks would be bad. Was I sent the wrong memory? I wanted to post here before I wade through phone support to see if anyone had any similar experiances with the Optiplex 320 or any resolutions.