Recently installed a Q9450 and put my arctic cooling freezer 7 pro rev 2 on it. I had it on an e6550 before tonight, and it was fine. Great cooling even at a 34% overclock of 3.2 ghz... never got above 48 degrees at any load, running any application, and quieter than my case fans.
So I applied new paste, mounted the heatsink, and put the fan on all as I did for my e6550. Started it up... and a very odd, loud, buzzing sound is now coming from my computer. I presume it is the fan and/or heatsink. Possibly I reversed the mount, meaning the screw that was on the left hand side when on my e6550 is now on the right? Would that actually make any difference?
I don't know what's going on, and I'm terrified. CPU fan is at 100 percent in control panel. Power setting is set to "high performance." Speedstep is disabled (actually I enabled it in BIOS to disable it... very odd), and the processor is checking out fine in windows and cpu-z.
Temps are (seemingly) normal, although I've yet to run any demanding application. Idling at 35 and 34 on all 4 cores, jumping to 37 when running multiple windows of IE with multiple videos. I don't want to run PRIME or a game until i get this sound figured out... as I will be overclocking, or at least hope to