Scope on PCI+X (NOT PCI express)

[pollux]

Hi all,

Does anyone know if a SCOPE card can be plugged on a PCI-X port?

Thanks!

Raul

[garyb]

nope.

[pollux]

nope.

nope means:
nope, I don't know
nope, I don't think so
nope, I tried and it doesn't work
nope, don't know but who cares since XITE-1 is PCIe

[pollux]

Nope it does not work at all
http://en.wikipedia.org/wiki/Peripheral ... terconnect

I presume because of the 3,3 / 5 volt signaling in the 32 / 64 bit slots?

I remember we had servers with these 64 bit PCI-X slots, and they could host 32 bit PCI cards, but there was some note on this voltage issue.

Thanks for your replies folks

[pollux]

electrically it is the volatge as you said, but also the slot geometry does not fit

you can install a 32 bit PCI in a 64 bit PCI slot The 64 bit slot has the same geometry as the 32 bit one, but with a third connector :

32 bit:



64 bit:


(source for the images: Wikipedia)

[kylie]

I presume because of the 3,3 / 5 volt signaling in the 32 / 64 bit slots?

I remember we had servers with these 64 bit PCI-X slots, and they could host 32 bit PCI cards, but there was some note on this voltage issue.

if you have 5V only cards, they won't fit. the AVM B1 PCI v4.0 is a classic example.
newer PCI cards (v2.3) accept both voltage levels (3.3V and 5V) and are, thus, double keyed for universal use.
a card keyed with just one slot that is not near to the PCI slot cover won't fit physically into a PCI-X slot.
a workaround would be a magma chassis with a 32 or 64bit host card.

and btw, nice pics, but..

1) PCI64 ist NOT PCI-X (the keying is different)
2) if you don't know what direction a PCI card is put into, and how they look like, those pictures can prove all and nothing. there's no real way to recognize the end of the board where the slot cover is located...

-greetings, markus-