RE: BIOS and Clocks

[Cédric Caron <Cedric.Caron@merging.com>]

You probably have the PnP OS option in your bios set to YES

If you set this option to NO your card will be correctly configured.

To solve this problem you can change the value in the Command register
in the config space of your card when you starts your driver.

	Cédric.

		-----Original Message-----
		From:	Terje Melsom, VMETRO [mailto:terje@vmetro.no]
		Sent:	Friday, May 29, 1998 10:48 AM
		To:	Mailing List Recipients
		Subject:	BIOS and Clocks

		Hi,
		I have two questions related observation we have made
when debugging a
		driver problem on a dual Pentium-II motherboard.

		1) When the PC boots, the clock signals to un-populated
PCI slots are
		disabled after a few seconds. Does anyone know how this
is done? It does
		not seem to be controlled using the PRSNT pins, but
rather by which
		boards respond in config space. Is this a feature of the
motherboard
		that can be turned of for the purpose of debugging? How
common is this?

		2) We have a board with a Windows-NT driver that does
not work on this
		specific motherboard. What we see is that the BIOS
assigns base
		addresses in both memory and I/O space to the PCI
interface, but leaves
		it in a state with memory and I/O space disabled. In
most other systems
		we have observed that the BIOS enables memory and I/O
space. Are there
		rules or a recommendations on how the BIOS should behave
in this matter
		?

		Thanks for your help
		--
		Terje Melsom