[KLUG Members] PCI riser card causes machine not to power on

[Adam Tauno Williams]

> I'm trying to use a gigabit card in one of my Linux servers (it's a 
> clone).  It had a 3 slot 32 bit PCI riser card in it and I replaced
> it  with a 1 slot 64 bit card.  After doing so, the server won't power
> on.  If I remove it, it powers up with no problem. Anyone run into
> something  like this before?

You replaced the rised with a ¨card" or another "riser card"?  Is this
an active or a passive riser card?  (And is this the same mode as your
previous riser card?).

Does just having the riser in place stop it from booting?  Or is it
putting a card in the riser that stops it from booting?  Most 64bit
cards use 3.3v signalling while most 32bit cards use 5v signalling,
some risers support both or just one or the other;  perhaps you may even
need to twiddle in your BIOS.  Did you get the riser from the machines
OEM?