[ixp1200] Plugging ixp into Pentium's backplane

[Tan Chee Wei]

Dear Scott,

Thank You very much for your prompt reply. Currently, I have successfully
compiled all Vera's codes , changed the Intel's firmware to a Princeton's
firmware and reset the jumpers' setting according to README.jumpers.txt. But
I encountered problems when I removed the ixp board from its factory chassis
and plugged it into a Pentium machine. I tried out the same ixp board on 3
different Pentiums, two P2 and one P4. The common problem is, the Pentium
cannot boot up. Nothing appears on the monitor,not even BIOS messages.
Judging from the initial "noise" from the CPU, the Pentium did go into
initial BIOS mode of memory test but after that it simply stopped.
All the ixp board's LEDs flashed once upon power up and the LED indicators
showed '1' and '6'. What does '1' and '6' mean ? I swopped the PCI slot of
the ixp board in the active backplane, but to no success. Using any PCI slot
on the Pentium is fine, right? Initially, there was the doubt of conflict
with the graphics card, but surely not after 3 different Pentium machines
were tested, right ? 
Next, I shorted the reset pins (J21)and retried all my procedures. The
Pentium booted up successfully and then the reset pins were opened. The LED
indicators changed from the initial '8''8' to '1''6'.
I feel that my ixp board is not yet configured properly as a PCI board,
despite the fact that the jumpers setting were double-checked to be that of
Vera's. What could cause the conflicts ? Why is PCI slot 4 on the factory
chassis's PCI plane enabled and the rest disabled ? Thank You for reading
through my problems and I really appreciate all help now !
Please hit the "reply-all" button when replying.

Thank You and kind regards,
cheewei