One of my machines is an old Packard-Bell Legend 610 machine, to which I am trying to fit a second hard drive. The machine will not recognize any modern (or semi-modern) hard drive I have attempted to fit. I have tried various master/slave combinations, to no avail. My guess is that this is due to the BIOS being of am early type. The BIOS chip is a socketed DIP package and the lettering on it is too faded to read. The screen boot-up display is this: PhoenixBIOS(TM) A486 Version 1.01 PB400 OPTI 486WB Reference ID 08 Is this a reasonable guess? If so, what might be done by way of a BIOS upgrade? Thanks, Kurt