All 6 slots are filled: two more Ethernet cards, two digium fxo cards, an sb live card and the tdm card. Everything that I don't use on the motherboard is turned off: serial and parallel ports, serial ata and motherboard sound. I've got all this stuff packed in a case with a 430 watt power supply.
Interesting observation #1: When the tdm card dies, the fxo cards and asterisk still carry on. People can call and can leave messages, etc. I just can't hear the phone ring and I can't use the phone either.
Interesting observation #2: I think I know how to make the tdm card die. I have a pc behind one of the Ethernet cards on the server. When I do a download off the net, the tdm card dies. Keep in mind when I'm doing a download two Ethernet interfaces are working, the one to which the pc is connected and the one connected to my cable modem. I've just tried another download - I'm almost 100 percent sure I can make the card die this way.
Anyone been down this path before? I'd hate to buy a linksys box just to make the tdm card happy.
It seems somewhat obvious-- I'll bet, if you look at (via 'cat /proc/interrupts') the interrupts, you'll
see that the tdm shares an interrupt line with one of the ethernet cards. All it takes for something like
this to happen, is for the ethernet card to take longer than 1/8000th second to handle it's interrupt.
Solution? Work with the plug & play BIOS settings, and maybe move boards around in the slots,
so you can the tdm on an interrupt line all by itself. Maybe, make another machine the
network gateway, use your asterisk machine for VOIP phones only. You'll have to experiment.
murf
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