LAST EDITED ON Aug-14-00 AT 08:16 PM (GMT)
I have that combination and it is a nightmare. The 550 overheats constantly. I phoned Epox several times and different techs there told me that the 550/board combo consistently failed in testing and they can't figure out why. They think it is the chip. So even though there are settings on the board for the chip, they NO LONGER RECOMMEND the 550. In fact, they told me to underclock it to a 500 (lowered the multiplier) and lower the voltage (from 2.3v to 2.2v). That did cause the chip temp to drop overall, but on intensive tasks, the chip still overheats. At least I am not getting alarms anymore, system shutdowns, nor blue screens of death. That all went away, but I still wouldn't trust that chip and board combo. AMD, by the way, does not recommend this board on their website. Too bad, because Epox and Soltek (which is recommended) are the only boards I could find for an AMD chip that supports UDMA-66. And I can't seem to find a seller of Soltek anywhere in the US.
Furthermore, AMD now has a K6/2 550 chip which runs much cooler and at a lower voltage (2.0v), with a 128k L2 cache on it. That would be perfect solution - as good as a PIII, but they are only selling it to system integrators, not the public.