On 10 January 2012 13:25, Daniel Smith <viscous.liq...@gmail.com> wrote:

> We actually had the exact same problem with a board we were
> prototyping on. Working with the manufacturer it turned out to be a
> "feature" of the AMI BIOS they were using on the card (sorry I don't
> have the version right off hand). What happens is that the AMI BIOS
> does a Root Bridge reset on all the PCI-e buses upon power on. This
> reset can interfere with the initialization of certain types of cards
> that have serial eeprom that are based off an R-C time constant
> circuit at Power-On. Luckily for us the manufacturer was willing to
> patch the BIOS and resolved our issue. Perhaps you can contact
> Portwell with this info and see if they are willing to help.


So how exactly did it interfere with it?

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