Judging by the question in your title, I'm assuming that you wish to know more about the jumpers. I'll get to that in a sec. You say windows 98 cannot recognise the drive? Do you definitely mean Windows 98, or do you mean the BIOS on a windows 98 computer? If it is windows itself that will not recognise the drive, that just means that you will have to go into Control Panel > Device Manager (or 98 equivalent) and format the HDD from there. If this is a BIOS issue, you will know from when you start your computer up. It will say detecting Primary Master, Primary Slave, Secondary Master, Secondary Slave. Your main Hard drive with windows on it should be primary master, and this hard drive you want to format should be the primary slave. To do this, make sure the main hard drive with windows is set to cable select (otherwise there could be conflicts), and placed on the last possible connection on the IDE cable inside the computer. That second drive that you want to format should be on the second/middle connection of this cable, also set to Cable Select. Your BIOS should then detect both drives. If that gives you trouble, make your Main HDD the 'master', and the new Hard Drive 'Slave', on the jumper pins. You can then format the new hard drive with either windows, or a boot disk. Hope that helps.
