Le 06/05/2011 11:21, alex tinsley a écrit :
Even though the P67 and H67 do not support the PCI bus natively, PCI
is accessd through a PCI - PCI-e Bridge. If you look at page 8 in the
manual you'll see there's a little bridge chip between the south
bridge and the PCI slots. PCI slots have been running through these
bridge chips for a while now, this doesn't appear to be the issue.
It appears as though some of the settings are getting changed but
audio isn't passing, it may be possible that there are other on-board
devices bound to the PCI slot where the Delta 44 card is plugged into.
There may be 16 IRQ's however as indicated on page 11 of the manual
there are more than 16 devices on that motherboard, so the system will
share devices on the same IRQ. I would suggest disabling devices that
are bound to the PCI slot in the BIOS to see if that frees up enough
bandwidth for the card to operate. Unfortunately Gigabyte does not
include an IRQ sharing matrix like ASUS does, however if you refer
back to page 8 to the block diagram you can see on the left side of
the diagram which devices are sharing with the PCI slots.
There you will see a single line for a PCI Express bus, dropping down
to the bottom is the ITE Bridge chip which goes to the PCI slots,
however on the same line dropping down you'll see the Network
Controller is on there and on the top of that line are all the other
PCI-e slots except for the primary PCI-e x16 slot which is running off
of the NorthBridge. At this point you'll need to do some
experimentation with pulling any other cards you have in your system
that is not the primary graphics controller. If you're running dual
graphics cards, try removing one out of the second PCI-e x16 slot to
see if that changes anything.Also if you have any PCI-e x4 or x1 cards
you should remove them just to see if that helps to narrow your search.
Also, typically USB ports are also bound to PCI slots for power
management. If you have something plugged into the USB ports that take
up a lot bandwidth (ie hard drives, cameras, scanners) these will
cause a card like the Delta 44 to malfunction. Try toggling settings
on and off to see if that changes the behavior of the Delta card.
Why is this all necessary? The Delta 44 was developed back in 1999!!
before all this newer technology came out that surrounds it. The Delta
is a bus mastering card which requires full bandwidth of the slot,
anything that takes away from that requirement will cause the card to
not operate properly, so it doesn't play well with power management
schemes.
Also this motherboard has a ton of features for power management,
consider turning that off too temporarily to see if that changes the
situation too.
It also doesn't hurt to see if Gigabyte has an updated BIOS release
providing improved PCI performance.
Try that and see if anything improves.
Hi Alex,
many thanks for the reply (I reply to the ml because your post is very
informative).
Unfortunately I wasn't able to activate the card, I tried nearly
everything at BIOS level, tried also some kernel parameters (nomsi,
noacpi) but all without any success...
I'm a bit tired, too much time lost...
I give up, I don't know what else I could do.
Regards,
David.
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