endter@pioneer.arc.nasa.gov (Bill Endter RCU/DEC) (04/02/91)
I am looking into upgrading the bios on my 386 system so I can add a larger hard disk. The current bios is Phoenix V3.06 dated 1985,1986. My system board is made by UNITRON and called a Mini 386 system. It uses the Chips and Technologies chip set. I am very confused about bioses and need some answers. Will any 386 bios probably work on this board? I know the bios I have is on less dense chips (128kb) and requires a setup disk to set parameters. The newer bioses I have seen are on 256kb chips. Will these work, or is a change required on the mother board? Do companies sell upgraded bioses on the lower density chips? Also, I know that some companies use a modified bios. Is there any way to tell if the bios has been modified? My system has been very stable and I have never had any incompatibilty problems. Thanks, Bill