A400P/E + Intel D201GLY2(A) motherboard?

Hello

I'd like to build myself an Asterisk server for SOHO use. Intel's D201GLY2(A) motherboard looks like a very good deal, but I'm concerned about two things:

1. Will an A400P or A400E fit with a PCI riser, or will the CPU heatsink/fan be in the way? I downloaded the PDF from OpenVox's site, but didn't find the size of each PCI card

2. Performance, especially if there's the need for software echo cancelling

If someone here has used this motherboard to build an Asterisk server, could you answer the questions, at least the first one?

Thank you.

hello,
1) yes, you can use PCI riser for that. the PCI is 2.2 version.
2) yes, you can softecho if you need that.
regards!
James.zhu