First post, by Iarsin
Hi there, I got eventually a 286 PC with this Mobo
https://theretroweb.com/motherboards/s/pcpart … r-35-7020-00-00
Comparable to a "Super 286 ACT CHIP"
It got an ACT chipset ACT A27C001 and an
ht-ix 286 (1990) ami
I can boot a MS-DOS 6.20 boot diskette, and it lists the content of the Seagate 3,5" AT HDD ST 157a on C: (type 33, 43MiB) .
The HDD is partitioned with a primary 33MiB fat 16 partition, that has status A (activated, bootable flag A). The rest is partitioned as extended, but without a logical drive/partition.
It contains a MS-DOS 6.20 Installation on C: under DOS. In the root directory, there are t least io.sys, msdos.sys, dblspace. bin, command.com, wina20.386, mirorsav.fil, mirror.fil, config.sys
They are the same as on the boot floppy. (Until wina20.386)
Scandisk and diskfix are testing the ide HDD as sane. But Diskfix found something on the boot sector which I let repair it, but with no change to it's faulty behavior.
I already tried a> sys c:
a> sys a:\ c:
c:\dos> a:sys a:\ c:
c:\dos> c:sys c:\ c: 😁
F-prot didn't find any virus.
Could it be, that the 1990 AMI BIOS isn't able to boot from c: directly, and this PC setup was meant to use a boot floppy? There was no autoexec.bat in the root directory of c:
I cannot define the boot order, or didn't find it to configure.