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I also built up a system around the Q11 yesterday. But not with the A8-3850 (but nearly) - finances looked better so I took an i7-2600K+Asrwock Z68. Nice little setup! With a Corsair H60 (Mounted on a 140mm Alpenf?hn EKL Wing Boost as front Fan), CPU temps never go above 50?C in Turbo! The biggest problem were the stiff water tubes from the H60, but with some light pushing all fit perfecty. I did not take photos. If you are interested, I would go and open the case (8 tiny screws - YEAH!).
The A8-3850 I would have cooled with Scythe Shuriken (not Big Shuriken, that one is too big!). You would need to turn the CPU-Fan around, so it pulls away the hot air from the MoBo/cooler, so the direction of the air flow is the same as the one from the PSU-Fan (sitting directly above the cpu-fan). With opposite directions, both fans fight for the air, which would probably lead to heat problems.
ATM installing Gentoo. 7 minutes 48 seconds for compiling glibc - yeah! An Athlon II X3 435@2,9GHZ needs 21m 15s - impressive speed gain. The X3 with WD Caviar Black, the i7 with WD Caviar Blue.
Scythe Shuriken 100mm is the hsf I got
the psu is fanless, silences and efficiency were my main goals with this build
I'm not as concerned with high performance (I guess my tastes are changing)
I had to modify the shuriken because the asus board has the cpu socket very close to the pcie slot. I simply bent the heatpipes leading to the upper heatsink moving it up maybe 20+mm
now only if I could get the voltage to scale with powernow_k8 and the ondemand governor
voltages aren't shown in dmesg after loading powernow_k8, only the clockspeeds
the clock speeds appear to be changing, but power usage from the wall remains constant ...
I think proper power management still depends on having the AMD proprietary driver installed.
If you want, you can dump your DSDT and peek inside after disassembling it with iasl -d. There you can check if the voltages are determined by the BIOS correctly or not.