From: matth@extro.ucc.su.OZ.AU (Matthew Hannigan) Subject: Re: LINUX, 486 board and AMI bios fails. Date: Wed, 4 Aug 1993 02:00:40 GMT
mackinla@cs.curtin.edu.au (Pat Mackinlay) writes:
>ORAKEL@rzmain.rz.uni-ulm.de (Framstag) writes:
>>In <744346560.AA00000@rusthof.hacktic.nl> hugo@rusthoff.hacktic.nl writes:
>>> [ 486 won't work with .99 pl > 6 ]
>>I have exactly the same symptoms (with a DTK BIOS): 0.99.6 runs fine, but
>>all later kernel won't boot. I was in contact with Linus himself and we
>>weren' t able to locate the bug.
>>I have to to swap the motherboard. Sorry for the bad news.
>This sounds seriously like a problem we've been having down here in
>Western Australia. There seems to be a batch of bad motherboards from DTK
>that will boot older versions of Linux, but not anything after p6 or 7.
>I managed to fix _my_ problem by replacing the keyboard controller with
>an 8041 from an old 286 motherboard.
I had to replace the motherboard, but in my case the problem was probably
that the jumpers on the board were set for a SX chip, not DX. I fixed
the jumper but it still failed. Replacing the m'board with one that
was identical fixed it. It may have been a faulty m'board (even though
it ran DOS/windows fine) or the BIOS settings may have interacted in an
unfortunate way with the bad jumper setting. (Note this particular
operation has had a spate of m'boards supplied from Taiwan with the wrong
jumper setting)
In the process of tracking down this bug I spent a little over two hours
at the shop where I bought it removing _everything_ one by one and
replacing them with parts from a machine which did work.
My machine: dx2/66, 16mb RAM, VLB, Cirrus graphics, maxtor 234mb disk,
MG m'board.