I have a duel 533 system running at 75 with a TNT2 Ultra, I just did a reboot on it, but before the boot she was up for 3 weeks, 3 veeerry hard weeks, children playing Q3, Q2, Half-Life and Counter Strike constantly.....
Now I know why my Seti output has been falling, naughty children.....
I did do a EC10 change on it though, I didnt have any 1500uf 6.3v caps then, so I took 2 1000uf 6.3v caps and soldered them togher, in-line I think is the word for it...........
I also had to get a decent PSU for it, I got a 400 watt, that seem'd to do the trick....................