First post, by nemail
Hi
it's me again, trying to make a DX4-100 VLB build and failing hard.
This time it is an ASUS VL/I-SV2GX4 and an Intel 486 DX4 100 MHz which I'm trying to build together.
However, when I start the system, it POSTs and when it tries to boot from floppy or hdd, it stops right after "Starting MS-DOS", regardless of the boot source.
I've tried various VLB I/O cards and VLB VGA cards, as well as several hard disks below 8GB (even one with 200MB) and also several memory sticks.
What I came across however, was that sometimes when POSTing, the BIOS would say that the floppy drive failed. Also, sometimes I get the beep code for faulty video memory. Sometimes I have to wiggle around with the vga card a bit, sometimes a reset is enough and sometimes I had to reseat the vga card to get it POSTing again.
I think this is more a bad contact on the ISA or VLB bus than a faulty card.
What surprises me however, is that regardless of what I try, the main error always is the same and nothing I did, changed anything regarding this. The system just stops after writing "Starting MS-DOS".
any ideas to start searching? try a non vlb i/o card? reflash (newer) BIOS? try another CPU?
As this mobo does have a coin cell battery, there is absolutely no corrosion. also, the motherboard isn't bent.
thanks!