Well, I could not resist, time to retire my dual PIII 450/133 server box. The article referred to above says that the FSB is 400. This is not the case. The specs can be viewed at Link. Bummer about the sound. Since all the PCI slots are 3.3v slots, not 5v slots, the older cards will not fit / work. You need to find a 3.3v sound card, or, don't use it for sound. This is really a server box. This is why there is no AGP in the box. I did a quick look for 3.3v sound cards and the only reference I could find is the Aureal Vortex. I tried to go to their site and it looks like they are no longer in business. So, if you really want sound, you will have to look hard for a sound card! Again, this is a server box, not a gamer box.
Good luck!
EDIT: Okay, after looking at my MB and the 3.3v PCI slot, I was able to look at sound cards and determine which are 3.3v and which are not. It looks like the new cards are all 3.3v. I checked out NewEgg and they have one on sale right not for $33.00 (Link). I took a look at all my old SB Live boards and none of them are 3.3v. So, it looks like you can get a Dolby Digital 5.1 sound card for $33.00...by the way, the shipping is free!
Good luck!
EDIT: Okay, after looking at my MB and the 3.3v PCI slot, I was able to look at sound cards and determine which are 3.3v and which are not. It looks like the new cards are all 3.3v. I checked out NewEgg and they have one on sale right not for $33.00 (Link). I took a look at all my old SB Live boards and none of them are 3.3v. So, it looks like you can get a Dolby Digital 5.1 sound card for $33.00...by the way, the shipping is free!