[SOLVED] Re: sata_mv 0000:03:06.0: PCI ERROR; PCI IRQ cause=0x30000040

Bernie Innocenti
2009-10-14T15:25:12Z

El Thu, 08-10-2009 a las 18:09 +0100, Tony Vroon escribió:
> On Thu, 2009-10-08 at 12:42 -0400, Bernie Innocenti wrote:
> > El Tue, 06-10-2009 a las 23:13 -0400, Mark Lord escribió:
> > I want to try reducing the frequency of the PCI-X bus, but the BIOS does
> > not seem to provide a setting for it. Is there another way?
>
> Generally this is done with a physical jumper on the board instead.
> You'll find it near to the bridge chip, which is almost always by NEC.
> Another technique to slow the bridge down is to insert a regular PCI
> card in the other slot (these bridges tend to offer 2 or 3 slots). As
> the weakest link, it'll drag everything down to 33MHz.
> An old PCI-X 66MHz-only card may prove helpful here as well. You don't
> have to drive it in any way; getting power to it is sufficient.

Hurray! It seems we've fixed our stability issue at last.

We forced the bus speed down to PCI-X 66MHz for both buses by shorting
pins 1-2 of the on-board jumpers.