Please, I help you to install the cdrom. The discussed computer does not have any optión in the bios setup to do it. Only it has: user, esdi and scsi.
The rom bios is Amibios 41-p400-001437-00101111-101094-486avip-h, release 05/06/96. The chipset are UMC UM8886BF, UM8881F.
I'm sorry, my knowlegments anr no good ( my inglish too).
To install cdrom in 486 dx2 computer
That's a PCCHIPS M919 (or M921), but anyway, you won't get to see CDROM as an option in the Standard Menu. The OS (if > Win95) will autodetect it. If not, then the CDROM driver diskette will get DOS to recognize it.
If your intention is to boot from CD, then forget it.
If your intention is to boot from CD, then forget it.