A2000 with A2091 & A2630 problem

[dbrads]

Hello All

 After a loooong wait I have collected my Amigas from the UK, the first problem I need help with is on my beloved A2000.

 I have noticed the jumper (303) is fitted to disable the 4MB RAM on the A2630 card, if I remove it the system cannot boot from the A2091 SCSI HD , is it a conflict between the memory on the A2091 nd the A2630?

[dbrads]

Thanks for the reply motrucker,

 I have 6.6 roms on the A2091, and KS2.04/WB2.04 on the system.