most of these DCs are on the new BOINC system at Berekely U. where the program will automatically flip over when another isn't working (server outage for example)
I quit running them on my home PCs, well it will run again on my K6-2 400 if I ever get around to hooking it up. Hasn't been hooked up since I moved. But I'm still running it on my machine at work. Classic Seti, not that BIONIC crap.