Well those last 4 pins are jumpers for master/slave... I am looking at an IBM Travelstar 12Gig.
imagine the cable on the xxx's and 1234 the last 4 pins.
xxxxx 1 2
xxxxx 3 4
Device0 (Master) = all 4 pins un-jumpered
Device1 (Slave) = 2 and 4 jumpered
Cable Select = 3 and 4 jumpered
I would try without the dvd hooked up to see what happens
Do you see any error messages during the POST?