So yours is basically 2 of these on 1 card?
http://shop.ztex.de/product_info.php?products_id=66&language=enThere excellent little things but there massivly expensive even with there small ££££ per joul/hour. Weird this popped up as a friend of mine messaged me yesterday about using a JTAG'd xbox 360 with these things. It as a very powerful 3 core processor that workd simalar to the G4/G5 PowerPC chip also which is what catfish was saying be interesting use.
Im a little over my head but im following

@Catfish - I just noticed how close the cards are means that your extenders are REALLY close, wont you suffer from interfierence? I did with mine a little and had to sort it out with some 'protection/shielding' on the cables. Just a thought if you get some unusal readings on any of the cards
