By Pete Zaitcev 1999/11/01 2000/08/22 I am not responsible for any direct or indirect damages to your equiment or yourself resulting from you reading this document. USE THIS INFORMATION ON YOUR OWN RISK. IDE interrupt line is connected "upside down" on the Espresso. To have IDE working we need to insert an invertor in it. We borrow the invertor from ISA IRQ3. If you want to use ISA modem, set it to use COM3/IRQ4 (please realize that Linux IRQ level would be programmed in CPU PCIC). The following picture provides an overhead view: +==================== wire 1 =======================+ # # # 1202 1200 # 1201 # +-------+ +-------+ # +-------+ # -! REP !--14 1 -! INV !- 14 # ! ! # -! !- -! !- # ! ! # -! !- -! !- # ! ! # 4 -! !- -! !--11==+ ! ! # /---5--! !- -! !--10====+ ! ! #/ 6--!--\ !- -! !- 9 # ! ! A-> * 7 -! \---!---8 -! !- 8 # ! ! ! +-------+ ! +-------+ # +-------+ ! ! # Z ! /=========== wire 2 ===========+ Z !/ Z R2026 B-> +--- ZZZZ ---* Z (pullup) R1208 ! * I recommend to proceed in the following way: 1. Disconnect 1202 5 & 6. Not knowing if I need them I lifted pins with a model knife. You may just cut them with side cutters. 2. Lift pins 1200 10 & 11 but do not cut them! 3. Run wires from resistor pads "A" to pin 1200 11 and from pad "B" to pin 1200 10. Resistor pads are much easier targets for soldering at home than pads under pins 1202 5 & 6. I am a software engineer, so I did it the easy way. I did not bother to glue wires as a decent electronics hacker would do. You are all set. Get kernel 2.4, hack drivers/block/Config.in and enjoy! P.S. Let me know if you have drawings of hard drive brackets for Espresso.