I got everything set up and decided to put the CPU under load to see how it would perform.
Here's the rig specs before I go any further:
Case: Corsair 650D
CPU: Core i5-2500k
CPU Cooler: Corsair H80 (Shin-etsu G751 TIM, exhaust Push/pull)
MOBO: ASUS P8P67 Pro Rev. 3.1
GPU: eVGA GTX570 Classified
RAM: 16GB Corsair Vengeance 1600Mhz
SSD: Crucial m4 128GB
HDD: Samsung Spinpoint F3 1TB
I set the 650D up with the stock 200m front intake, 120mm top intake (I could put the stock 200m top intake back in if it would help), and the Corsair H80's radiator/fans as the lone 120mm exhaust in the rear. The CPU is still at stock settings. CPU-Z is showing 3.7Ghz Turbo'd and ~1.296V.
I'm seeing temperatures of 33 - 37C at idle in various monitoring programs (realtemp, coretemp, and speedfan). These seem high as ambient in the house is ~25C, but do make me think the unit is functioning properly and I've made a mistake somewhere.
I decided to test at stock clocks for ~4 hours in Prime95 to see how the unit did under load. After 4 hours, the cores were at 53, 56, 58, 58. (screenshot attached, I opened realtemp late, but coretemp & speedfan were active throughout--note: coretemp shows 98C maximums and occasionally "jumped" to those temps on each core which I believe was in error, which is one reason I dl'd and opened realtemp as well).
These temps seem a little high (are they?) for a stress test at stock settings, but the fact that they aren't higher makes me think my unit is functioning properly still.
Does the ~5 degree difference in core 0 and core 3 suggest my heatsink is still not making solid contact? Is my fan set-up in my case (with the radiator as the only exhaust) bad? I originally wanted to make the radiator the top intake, but the fan/radiator/fan proved too thick to fit between the roof and the mobo.
Any help/input lowering my temps is appreciated.