Hi,
There are a number of boards available. You should look for a server class motherboard, one that supports PCI-X or at least PCI at 66 MHz. A board that supports either of those will be (by requirement) at 3.3v slot, not a 5.0v slot.
If you are looking for a cheap machine that will do the job, you may consider the HP Kayak XU800. I see a number of them available on Ebay from time to time.
Eric
Col>
Dear All,
>
> Apologies if this is slightly off-topic but I hope there may be
> someone reading who has faced a similar problem.
>
> I have a prototype 33/32 PCI peripheral. The PCI bus interface is
> implemented in a Spartan-IIE device, which is not +5V tolerant. Design
> verification of the hardware is underway on this new design.
>
> I would like to make progress on software development while we wait
> for the hardware to be finished. To that end, I am looking for a
> PC-architecture motherboard into which I can plug our prototype card
> without blowing the Spartan-IIE device.
>
> I tried searching for suitable commodity motherboards. There are
> plently of boards but none of them specified that their PCI bus
> interfaces were 3.3V only.
>
> If anyone can suggest a suitable board I would be most grateful.
>
> Regards,
> Colin.