[geeks] (1) PCIe-ish slot? (2) PCI SATA? (3) eSATA?

[Jonathan Patschke]

On Tue, 13 Aug 2024, Mouse via geeks wrote:

>> This sounds like one of the various audio / MODEM slots that Intel
>> and AMD invented.  They had names like "Communication and Networking
>> Riser" and [...] "Audio/Modem Riser."
>
> That does sound like a good guess!  Are there any telltales I can
> expect to find (with that slot empty) in the BIOS or on one of the
> buses to help me confirm/refute it?

There probably are, but I haven't used a board with one of those slots
in a very long time, so I can't remember.

They're almost entirely self-configuring, since they're so limited in
functionality, but options for onboard audio might say something about
switching between the onboard DAC and AMR DAC.

> Yes, I would not expect to see both on the same board absent very
> unusual circumstances, like a custom-built board designed for a rare
> legacy ISA card but otherwise modern.

I think we had a test board like that at VIA, but we eventually settled
on tapping the LPC bus, since we could use a little IDC connector
instead of having take up a whole slot.  We had a lot of really crazy
one-off test boards (including some for Socket 771 C7 chips, which Intel
forbid us from making right after we got a crate full of substrates...).

-- 
Jonathan Patschke
Austin, TX
USA