I just purchased:

E6400
DS3
2GB OCZ Gold GK

The system will not post with the GK's. No beeps, nothing. I stick in my el cheapo Corsair stick, and bam, post.

After posting I have tried:

Raising vdimm from 2.0 to 2.2
Manual setting times to SPD values

Trying to figure out if these sticks are DOA or just not compatible with the board, or just something I am missing.

Any ideas appreciated.