Have done quite a bit of research on the Dell SC420 and its compaibility with digium products such as the TDM400P.
The digium website does not recomend using the Dell Poweredge SC420 with the TDM400P but does not say why. Other posts suggest its because you cannot change the interrupts in the bios, but you can chnage the pci slot the tdm400p is in to counter this irq sharing conflict.
However from doing searches on this forum, digium mailing lists and the net in general it appears that the majority of people find this server reliable and good value.
Any comments, good or bad about the SC420? Its going cheap in the UK and I am tempted to buy it…
Thanks for your consideration.