Haines Brown wrote:
>
> Interesting discussion, but it leaves me uncertain. I had in hand an old
> EISA bus SCSI adapter, which tells you how out of touch I've been. I've
> usually gone on assumption that if a card fits into slot it's the right
> card.
This assumption is in general true for the electrical side of the
problem. If the card fit into the slot, you can assume that both sides
will not be damaged.
> The AVA-2906 I have in hand fits an expansion slot on my new
> motherboard, and so I thought I was all set. But in light of the
> discussion, I now wonder.
The AVA-2906 card seems to have no Boot-capability. But for other cards
that have it, the software in the onboard ROM must match the computer to
work. Therefore that you can plug the card into the slot is not
sufficient for a card to work as expected in some cases.
> I'm told that PCI slots have generally been out of fashion for years and
> most new motherboards don't have them. However, I have a new Gibabyte
> GA-H97-D3H, and it has: two PCI Express x 1 slots, two PCI Express x 16
> slots and two PCI slots. These PCI slots seem to accommodate my AVA-2906
> SCSI adapter card. How do I reconcile this with the discussion?
According to the Adaptec homepage:
http://www.adaptec.com/en-us/support/scsi/2900/ava-2906/
the AVA-2906 is a 32 bit, 5V-only PCI card. Therefore it should have a
single notch in the PCI connector at the back side (opposite direction
to the external SCSI connector).
If the slot provides the wrong voltage, the notch of the card don't
match the slot and you can't plug in the card. Wikipedia has a nice
overview picture of the 4 PCI slot types:
https://upload.wikimedia.org/wikipedia/commons/thumb/1/15/PCI_Keying.svg/400px-PCI_Keying.svg.png