Kontron ePCI-101, Руководство пользователя, Страница: 106 / 109

H-3
ePCI-101 User’s Guide
H.4.4 SHB Hang During Boot
First, you want to read the last postcode on a PCI post card or you want to listen to the beep post
code. Consult the BIOS postcode listing. This might give you a clue on what the problem is. If you
call Kontron technical support, the first thing they will ask you is to read the postcode.
Possible Cause Possible Fixes
PCI device conflict on bus A See section on off-board PCI problems.
Memory problems
Make sure the memory type is in the approved list and is
properly inserted.
Cable problems
Remove all non-essential cables and check Pin #1
alignment on the remaining cables.
H.5 Off-board PCI Problems
First, remove all PCI cards. If it works, the problem is probably related to external PCI cards. If it
still does not work and the backplane has a PCI bridge on Bus A, you might have a conflict between
the chipset and the bridge. See section on Bus A problems. Otherwise, populate the PCI cards on
Bus A only to see if its works. Go to the appropriate section.
H.5.1 Bus A Problems
Because Bus A is a conventional 33MHz PCI bus, it is unlikely that it is a timing or protocol problem.
One known problem is a device conflict between the chipset and an external PCI device that has an
IDSEL set to AD28 and AD29. You must only use the slots with an IDSEL set to AD30 and AD31 or you
need a backplane that allows you to change the IDSEL AD28 and AD29 by AD24 and AD25.
If the backplane comes from a different vendor, avoid using the slot next to the SHB if you can. If
you cannot or if the backplane has a bridge, consult your backplane vendor’s technical support for a
possible workaround.
A.1.1 IDE Problems
If only one drive is present on an IDE channel, it must be configured as the master device;
otherwise it will not be detected.
When a drive is present on the primary channel and a CompactFlash is also present, the channel
speed is restricted by the CompactFlash. Use a 40-wire cable for the external drive or the
CompactFlash will not be detected.