hello I have also a COMPATICARD II and the manual only treat about Compaticard IV. There are any documentation about DMA and IRQ. The jumpers J1 and J2 A and B position respectively. IRQ 6 and DMA 2 (two jumpers). I have lost the software to enable the overdrive 1200. Can you send me a copy by e-mail? Thanks ---------------------------------- Fr?d?ric NAVACCHIA CEA Cadarache DEN/DED/SCCD/LECC B?t. 238 13108 St Paul Lez Durance ----------------------------------- t?l: 04-42-25-64-38 fax: 04-42-25-35-53 navacchia(a)cea.fr