Yep - there is a jumper you need to change. Goes from 512mb Chip to 1mb. Only when it is in the "full" 1mb mode, will the mobo see 2mb with the MegaChip. Also, the lead from the MegaChip usually goes to pin 36 on Gary. Yours may have broken off. Not sure if there was a DKB model that did NOT have that croc clip. But look for an obvious "hole" or place where that black lead may have originated from...
Maybe post a pic here of it too if you're still having probs...
