Yikes, I almost deleted this message. Its been a long time since I had anything to do with Driverheaven/gamerheaven. Uh as far as the 423/478 adapter I honestly have no idea where they are or even IF i still have them. I do know that if you use them you'll need a specialized cpu/heatsink/fan combo (which I don't have anyway) so I'm almost positive you're better to look on ebay or online for a complete adapter. The adapters I used were from PowerLeap - but I see they may not be in business. Might try searching ebay for powerleap 423/478 adapter and see what comes up.