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PCI boot problems
On a previous project, we had numerous difficulties integrating our system
onto a 20 slot (18 PCI, 1 PICMG CPU, 1 ISA) backplane. In the end, we
found that we had to go with a CPU card which had onboard AGP video, rather
than using a PCI video card.
We are now working on a new generation of the hardware, and have a CPU card
which has onboard video, but unfortunately PCI rather than AGP. We are now
seeing problems (BIOS freezing while part way through scanning the PCI bus,
or even freezing running the CMOS setup utility) when we add the last of
our cards into the system. (Only certain cards in certain slots cause the
problem but it is not just one type of card or just a particular
bus. Adding an additional DSP card does not cause the problem, so it
doesn't seem to be a PCI resource limit.)
The system has:
1. 1 dual 1 GHz Pentium III CPU card with PCI IDE, video, USB etc. and 133
2. 5 PCI slave cards
3. 4 PCI DSP cards, each with a bridge. Off the bridge is the DSP card's
PCI controller and a PMC card.
4. 4 backplane bridges
If we replace the CPU card with a CPU that has a single Pentium III and
onboard AGP video, everything works fine.
1. Has anyone had similar problems?
2. Has anyone solved similar problems?
3. Any suggestions?
NOTE: I'm not on this mailing list and our hardware designer is away, so
please reply to me directly (and to the list if you wish).
Square Peg Communications Inc.
tel: 613-271-0044 ext.222 fax: 613-271-3007