Updating this, I added a fan. I've been overclocking a phenom ii and reseated temperature diodes onto the heatsink, and was getting 91*C if i pushed my vcore to 1.568 (which seemed to cause more instability than help, so i only did that once and stopped 5 minutes in), it's usually at 65-85 depending on my vcore.
Now I noticed my VRM was warm to the touch upon shutting down after a prime95 test, of course (meant that they were working!), so i figured to add a small fan to the set-up. Here's the story in pictures:
40 MM fan (when hooked up, to my surprise, lights up blue/green/red like a christmas tree).
Ripped from this old, 2003 computer found in my dead uncle's garage.
Heatsink, fan on top, this on top of fan, screwed in.
This is how I got the idea to use the fan - there are no special brackets that held this 40mm fan onto the motherboard northbridge (***, why didnt my 2010 biostar a770e3 didnt have a fan on the mobo-northibrdge? I had to jerry rig one on...), it was straight screwed into the heatsink. I, too, would screw my fan directly into the heatsink then, having the heatsink fins hold it in place.
Theres the heatsink, but the rear 120mm hyper 212+ fan would be issues. If I put the fan on top of the mosfeat heatsink, i would have to move up the pull fan a cm or so. Maybe that'd raise cpu temps. maybe that'd lower it, who knows. And, maybe it would stick out too far that I woudnt be able to put my panel back on?
And then there were questions, shoudl I put this fan in a way where it's 'pulling' air through the heatsink, as in, instead of blowing down on it radially like a stock CPU heatsink, maybe I should set it up like a tower heatsink, and have the fan 'pull' air through the mosfet heatsink. Or, maybe with pull? Maybe I could sort of put the fan at an angle, on top of the heatsink, but not quite on top, sort of at an angle, to allow my pull fan to fit in with enough room (didnt give it enough room, so didnt do that).
I decided with blowing down, radially, onto the mosfet heatsink, in order to cool the chokes and capacitors as well as the mosfets and mosfet heatsink.
Notice how it glows! Note the best pic, it does look cool though:
Now maybe I screwed up my temp diodes when putting the fan in, i mean they are tight in there, and I had to remove the motherboard from it's standoffs to get the fan wires behind the motherboard, but I made sure to keep them in place (spent like an hour seating my 2 cpu diodes, god damn they still won't read the cpu temp no matter where i stick them, damn hyper 212+ being exactly the same size as an am3 cpu and direct contact copper pipes taking entire temp load so the top of the base isnt warm at all)...
but I think this fan has resulted in at least 15-20*C of cooling. My vrm temps aren't going above 56*C when the lowest they've ever been under prime95 is 65*C, and more than likely they should read 75*C during prime95 under the voltage I have right now.
Why buy a high end motherboard? Just buy the cheapest piece of **** you can find and slap mosfet heatsinks and a fan on it!Edited by Belial - 11/13/12 at 6:06pm