this kind of riser won't work as explained by Neko in another thread.

Ok, maybe I didn't understand him very well.

Does exist any riser at all in this time ? Simple question, simple answer.

Yes thier exist PCI riser cards that will work with EFIKA. However, you need a 3.3V one with an onboard PCI-to-PCI bridge chip on it.

Is there is any flexible PCI to PCI Bridge Riser Card? Can you please post a link. A flexible PCI Riser will looks like this.

http://www2.multithread.co.uk/images/a_ ... _large.jpg

I have one of these and Efika did not boot with that.

Can someone please advice which flexible PCI riser to buy and the link please?

gbpnkans:
That riser doesn't look 3.3V to me. I think you mounted it
backwards in your EFIKA. Be happy you didn't fry your EFIKA.

ironfist, i gave that only as a example. I just need a flexi (the one with a ribbon, so that I can flexibly position the card to fit wherever i like) riser card for 3.3v. I searched over google, did not get one except a active dual active pci riser. Can someone please help me on this.

Look at the PCI-connector on this card. You need a
riser that has a connector looking exactly like that.

Make sure you plug in the riser in the correct direction!

Well, what you would prefer is one which is 3.3V keyed as then it will be impossible to plug in a 5V card by accident on the other side, and incredibly intuitive as to which way it fits into the Efika PCI slot (there is only one way)

PCI cards (and risers) have two sides - A side and B side. 'A' side is the one on the back of the board (for instance the side facing the CPU on a graphics card) and a B side is the normal component side (where nearly every PCI card has it's major electronics).

What you need is a 3.3V riser with the slot on the 'A' side to hang over the board, and 'B' side to hang away from the board. If it is flexible it at least needs to be notably 3.3V compatible, and if you hold it straight, hopefully the datasheet for the riser will tell you which way around it is meant to go.

The PCI keying is there for a reason - do NOT think that because it fits in backwards that this is correct. 99.99% of PCI devices will destroy the PCI card or Efika if they are connected backwards. We have already had users insist they know what they are doing, and plug in a graphics card backwards because "it fits".

Please ONLY use risers which are dictated as 3.3V compatible. Make sure the back of the card (where the VGA connector or ethernet connector would be) is at the BACK of the Efika board. There is no other correct way to fit it. If the card or riser does not fit that way it is NOT compatible. Bridging a 3.3V connector on the Efika to a 5V connector on the riser is NOT compatible without active components.

I updated the Gentoo Efika wiki with some PCI risers which should work; however I have not gotten hold of any personally to test their compatibility, the datasheets for them are very concise about it and there are several part numbers determining which exact riser configuration is required;

http://gentoo-wiki.com/Efika#PCI_Riser_cards

_________________
Matt Sealey

Hi, I think that I've found 3 other pci riser cards which should work on the efika :

• . RC2-019 (photo here),
  . P4TX21-2,
  . EBK PCI 2.

Could you please tell me if I'm wrong ?

Thanks for the photo and suggestion. The one which you suggested got worked. It is good to experiment and with only efika, I understood the various types of risers and problems associated with it. Many Thanks.

Wrong, maybe and PERHAPS respectively.

The RC2-019 is not 3.3V compatible.

P4TX21-2 may only work for ONE slot. The big red note on that page explains why.

The EBK adapter the same reason.

All of them will hang cards away from the motherboard too, if they work at all.

_________________
Matt Sealey

this one (tmc-uk) seems to be really interesting:

2U 32-bit 3.3V Signaling Active PCI Riser





greetz,

_________________
acrux _at_ linuxmail _dot_ org

@Nico:

I already tried contacting them, but it seems they do not longer support or build this riser.

oh, bad news...

and what's about this one?:
http://www.mini-itx.com/store/?c=8#p1906

_________________
acrux _at_ linuxmail _dot_ org

PLX is a maker of lots of various bridges. They have eval boards that are very expensive (just like all eval boards), but if you're desperate they might still be worth it...

http://plxtech.com/products/fastlane/pc ... p#devtools

http://www.semiconductorstore.com/pages ... er=6140RDK

Unfortunately it's not documented just how the RDK is configured, i.e. how many secondary ports there are on the board.