All in all, a good thing.
Currently running a modest 114% overclock, I hope to get it up to a full 150% before I'm done.
Athlon64 overclocking is a much more complicated process than AlthonXP overclocking was. This is due to the fact that the memory controller is now resident in the CPU die itself. The bus doesn't work like a normal FSB, instead it has a HyperTransport thingy with a multiplier in addition to the CPU multiplier. Then you can adjust the speed of the HTT much like you would the FSB on older CPUs, but you run the RAM on a divider (akd 3:2) so that it doesn't have to run as fast as the CPU.
The upshot of all this is that it gives you the capability of really pushing the CPU clock without needing insane RAM speeds.
The downside is that it's a good 3-4 times more complicated than it was last time I was overclocking a CPU.
It's like learning how to tie my shoes again.
It's running pretty quiet already, but the videocard is 4x as noisy as the rest of the machine put together, so I just dropped $35 on an aftermarket heatsink for it. Once I get that installed, my entire system should be nice and quiet, like my old one was when I first built it.
Motherboard - Abit AN8 Ultra (passively cooled with a heatpipe system, no noise at all)
CPU - Athlon64 3000+ Venice core @2050mhz
Heatsink/fan - Scythe Ninja with Nexus quiet 120mm fan ( <10db )
Hard drives - 2x Seagate Barracuda 7200.8's (among the quietest HDs available)
RAM - Kingston HyperX DDR400 (scavenged from old system)
Case - Antec SonataII w/430w quiet PSU and quiet 120mm exhaust fan
Videocard - EVGA nVidia 6800GS @105% overclock
quiet as a stealthy ninja... with a noisy video card strapped to his back.
Ah, but soon my pretty...