Re: System partition problems with PC 750 MCA/PCI
- From: "Dan the K" <kaliushkin@xxxxxxx>
- Date: 26 Jun 2005 14:41:30 -0700
> Dan the K wrote:
> > Thanks, Rick. Now, can you give some examples of putting the
> > configuration in a base state as far as PNP allocation is concerned? I
> > guess removing cards is one example.
> Remember that I've never dealt with the PC-750 MCA, but in general
> terms, putting a machine to a base configuration would mean removing as
> many adapters as possible (if you have no planar video, you'd need at
> least a video card). For the MCA side, I'd start with a freshly built
> Reference Diskette.
> Once you have the base machine configured and happy (from both warm and
> cold boot), I think that you will want to populate the PCI side first,
> then the MCA side, one card at a time, installing the cards with the
> highest resource requirements first (multiple IRQs, 32K or larger I/O
> memory spaces, DMA channel requirements, etc). The cards with the
> simplest requirements (1 IRQ with no restrictions on IRQ usage) should
> be installed last. By installing adapters "in the right order", you
> might get a working configuration when you are finished. If not, at
> least you might find the source of your resource "bottleneck".
> Rick Ekblaw
I tried all that without success.
I've come to the conclusion that its just a strange hybrid beast. One
part of it is identical to other PC 750s, another part of it is
identical to PS/2s. That F1 screen is identical, word for word, to the
F1 screen on the 6885-45H. When I press F1 on the 6885-45H, it comes
up with a very standard configuration screen. The 6886-4CH has an
option to turn off the prompt; I did. So this problem is gone.
The only remaining problems are (PS/2 mode) :1) You can't bring up the
PS/2 type reference menu from the hard disk; 2) Ctrl-A from the
reference disk brings up "insert diagnostic disk" and there isn't any
diagnostic disk. The one so labeled in IBM's vault is PC Doctor 2.0.
That doesn't satisfy the reference disk.
Does this machine use IML or not?
Otherwise, it appears to work fine. I'll be installing some MCA
adapters. Right now I have a PCI SCSI controller (Buslogic 946c) but
boot from an IDE disk. It's interesting to see PCI and MCA side by
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