I'm putting a PCI modem into an older Pentium II computer that hasn't had one before. The first time I installed it, it worked fine, but when I shut the computer off and tried to start it back up, it ...

Yes, it's unlikely that a modem would require more bandwidth than the ISA bus provides. Also, most PCI modems are Winmodems which rely on the CPU to do most of their work, so ISA modems are usually ...