I just cancelled and requested for refund on my order of Zalman CNPS8900 Quiet. NewEgg "Premier" did not ship the order until today (allegedly). I placed the order last Sunday. I decided just to keep the stock cooler for now.
I am using i5 4570s (2.9Ghz to 3.4GHZ, 65W), MSI B85i and Corsair XMS3 8GB 10666 cas9. All stock speed. However, I see the i5 idling at boosting frequencies to 3.3mhz. (I can't make it to idle at 2.9ghz unless i forced it through MSI control panel, any ideas?). For the time being, I'm using Radeon HD 6850 until the new Maxwell cards come out. I am running RVZ01 provided case fans, one on top, one bottom front, at about 55% speed (using a pci fan controller I had).
Using AIDA64 stability test, after 45 min, my temps are:
CPU: 60 C
Motherboard: 43 C
HDD: 37 C
CPU: 33 C
Motherboard: 35 C
HDD: 33 C
Room temp AVG 72 F
I'm still not happy with my idling CPU temps considering I do get mid 20s temp in my other tower machine using a i5 2400 (3.1GHZ/3.4GHZ turbo, 85W), albeit, using a 212 Plus cooler. I was expecting lower motherboard temps as well. HDD/SDD seems to be about the same.
I'll experiment using a thicker fan on top and see how it changes.
does CPU temps affect MB temps?