I am, by some miracle, still running a PB c115 pentium 120 with a 680 motherboard, which is now 9 years old. No major changes other than upping ram from 16 to 48 and scraping all the junk programs off. Have realized the original cmos battery is years overdue for a change; thought I might spring for a new hard drive while I have it open. Is there a hard drive I can buy for her in 2006 that will not need a bios card? What will original bios recognize on a 680 motherboard. This computer has never given me a day of grief in 9 years, runs well, but I dont want to spend more than I need. Thank you for any and all help.