Ok, If you plan on running a vcore around 1.9v+ on a nforce 2, I'd seriously recommend mosfet sinks. I finally got around to putting them on my nf7-s... and to test them out, cranked it up to 220x11 and 2.03v vcore. Ran prime about 15 minutes, then kicked up 3dmark 2k3, ran the first two tests and shut it down.
I touched the heatsinks, and they were HOT. I mean hot as Hades. Every bit as hot as the mosfets themselves got when they weren't sinked. This is with aluminum lapped to 600grit 1/4"x5/8"x3/4" sinks on each one, and two 205CFM 12v fans @ 5v blowing straight down on my motherboard (dunno what they push, maybe 75CFM each.) I was shocked. I'm gonna mount a 50 or 60mm fan right over them to get more forceful airflow (I'd imagine it loses alot of kick crossing 7 inches to get to them.) and see if that helps. I'm also going to mount Heatsinks on the chips I THINK are my PLL chips... although they weren't too hot, they were warm, and I didn't run my comp for very long, so they might not have had time to heat up.
I touched the heatsinks, and they were HOT. I mean hot as Hades. Every bit as hot as the mosfets themselves got when they weren't sinked. This is with aluminum lapped to 600grit 1/4"x5/8"x3/4" sinks on each one, and two 205CFM 12v fans @ 5v blowing straight down on my motherboard (dunno what they push, maybe 75CFM each.) I was shocked. I'm gonna mount a 50 or 60mm fan right over them to get more forceful airflow (I'd imagine it loses alot of kick crossing 7 inches to get to them.) and see if that helps. I'm also going to mount Heatsinks on the chips I THINK are my PLL chips... although they weren't too hot, they were warm, and I didn't run my comp for very long, so they might not have had time to heat up.