pretty much the same question:
http://www.ocforums.com/showthread.p...84#post3177284
ive always just used mbm5. Having a tube like fall off a barb is worst case scenario. Do Opterons throttle? I dont think so, cant find any info on google about it.
The inaccuracy with the winbond chip isnt a big deal. The temp sensors are constantly inaccurate. So it will always show 45c when your temps are really 50c for example. The problem with it is there is a good delay between changes in mbm. If you set mbm to do a force shutdown, not a normal shutdown, at a temp thats within 5c of your max load Id imagine you would be ok for most situations.