CompuServe Messages

Hi James… I am not familiar with your SCSI interface, but I can probably point you in the right direction. COM1 is most likely using IRQ4. If your host adapter is also using IRQ4, you will need to change the setting on your host adapter. (In most computers, COM1 uses IRQ4, COM2 uses IRQ3, LPT1 uses IRQ7, LPT2 uses IRQ5.) If you have Windows 3.1, you also have a good diagnostic utility. Run MSD.EXE from the Windows directory. When you get in, I suggest you look at the IRQ list, (on of the push buttons – pressing Q will bring it up) to take a look at what is allocated. Here is the way it usually works. If you have an ISA machine, interrupts can usually be shared but you cannot access both devices on the same interrupt at the same time. If you do, strange things will happen. (most likely what is happening in your case). EISA machines usually do not like to share interrupts. If you are not sure what interrupt the host adapter is using, then I suggest you disable your COM ports temporarily, boot and run MSD again. If the one of the COM port interrupts is still reported as in use, then the host adapter is probably using that one. Then you only need to figure out out to move it.. (and where).. Good Luck. Mike Cassano