PS: My MSI GTX 660 has full control on the two Noctua NF-S12A PWM fans (I modified the stock MSI VGA BIOS without any problem). I think you should have opted for mainstream graphic card manufacturer such as EVGA, MSI, Zotac. Asus must be avoided for aftermarket VGA coolers due to their non-reference PCB designs.
Just for reference the NF-S12A are not meant for heatsinks (the NF-F12 or NF-P12 are better choices for heatsinks), the blade design is meant for low restriction slots, they will struggle a lot with high density fan filters and CPU/GPU heatsinks, i own one the only slot that imo are good is for back case fans, but since your cooler is so massive for the mid end gtx660 it really doesn't matter. Prolimatech Vortex 140 slim are imo one of the best to use, for aftermarket GPU cooler, specially since they don't weight as much being slim fans, still they hold their own in static pressure and can be drop down to 460rpm, if the fan connector of the GTX780 would controlled them, i would have bought an MK-26 with those fans, but no luck for me, and the Accelero works great regardless.
The resized image is great, thanks!
Considering you can rock out LOL with a Pentium and a GTX 650, yeah, it's not much of a load. I guess I was trying to get a feel for your noise and heat generation given your setup...
I'll probably be playing more demanding games over time, maybe BF4 at the ends of the month, but since i played WOW, i have not been much of FPS guy anymore, LOL is really fun for me this days, and takes much of my time. Although i do have plans of buying Elder Scrolls Online and Everquest Next upon release, but still unsure if they will be able to still take people from the monster that WOW is today, i just got bored of 5 years of playing WOW, need something different.
Now going back to the build, the GTX780 + Accelero III wont change no matter what, its binded to 7V adapter powered directly from the PSU, its inaudible for me with the case closed at less than 1 meter. The only thing that dynamically changes is the Case fans and CPU fans, Noctua NF-A14 PWM are very quiet between 200-700rpm, but above that you notice them slightly and above 1000rpm imo is too loud for me. For this reason i limit them, i set them up in the bios to have a minimum of 12.5% PWM = 225rpm, this will be maintain until the CPU reaches 50C (this is the first temp setup on bios), but i also limited its top speed on bios, 37.5% = 650rpm is the maximum the all the case fan will reach (for reaching 80C or above), so the max rpms that the setup will reach on all 4 case fans is 650rpm where its not silent but very very quiet, now remember this comes as cost, this is why i displayed 4 HWmonitor settings with different % of pwm restrictions on the case fans. Here is a more compressed version of the HWmonitor, where you can see the difference into allowing higher rpms on the case fans, the penalty for me for limiting to 650rpm as the max speed, is 4C on highest temp core (all others also similar), its like 1C per each 12.5% less (remember these are prime95 stress tests, no game will reach this kinda stress), for me giving up 4C in CPU temps is a great trade off for ending with ultra quiet setup, but im hopping the HR22 will give me slightly better temps on prime95, will see in on November =)
Undervolting: bear with me - don't want you to undervolt...just want to know if the mobo CAN..and what method/range it uses. It's never listed in the written materials. Buying it and then finding out it can't is a piss poor method of finding out.
Ok ill find out for you, ill try to post some screenshot of the bios.
I think however that after just having tried ASUS' Fan Xpert 2 on a board first hand that I'm hooked on the possibility of turning most fans off completely when idling at low temperatures, even if I have certainly had to fiddle with a few oddities/bugs in the software itself.
I do like a lot FanXpert2, im even keeping my GENE VI for it alone, but mostly for testing fans and for secure erase. AI Suite III is weird in the way it measures CPU temp, its not core temp, nor CPU temp either, according to ASUS JJ its a mix of sensors that they studied and analyzed to be the closest and most real to CPU temp, on paper sounds great, but in reality its not, most of us use the core temps to tweak settings, and here it wouldn't be much of a trouble if it was just a + temp, but its not, it doesnt scale the same, my cores start reaching 60C but AI Suite temp is still on 44C, its behavior its not linear either, so i cant define something to adapt to it, so for me the way asus measures temps simply doesn't work me, some say if you use another software to measure temps parallel to Asus it will skew its reading, but i tested with and without on prime95 and same results as max temps.
On MSI its different no need for software (although they do have one, Command Center, but no where near as good as FanXpert2), as long as you chose the fan carefully and that they are PWM, the good thing is that if you see the MSI bios screenshot on the first post, you will see the setup i did for the CPU_FAN1 = CPUFANIN = TY150, i usually idle at 30C, where the fan was left at 37.5% = 540rpm (this is very close to it minimum tested with FanXpert2
), the fan will work with 0% pwm, but the problem is the fan has like a deadzone between 0-35% (you can see that on the before link), so why does it matter??? because i want the fan to gradually start ramping once 50C is reached on the CPU, if i set it on deadzone it has % that it will not ramp up, as the graph on the bios is linear, so 37.5% works wonderful for the TY150. Now this fan is the one that has the most impact on the CPU temp, much more than the case fans, so i let the roam freely and didnt limit its maximum RPMs (according to link before around 1093rpm), and honestly its not that bad being inside the case either, now the important thing here is setting up the second temp, i chose 80C as the max where my fan should reach the top PWM % allowed, in this case 100%, and if you see the HWMonitor pics above, it start to get closer, why i like this so much, because contrary to Asus FanXpert2, the setting on the BIOS react directly to how HWmonitor measures the temps of the cores, on 78C on the max core, the TY150 is at 1067rpm which is close to the 100% rating.
Either way, im still recommending FanXpert2 and Asus motherboards, its by far the best software besed fan control that i have tried, and for someone that doesn't mind the way asus measures temps and uses that temp to ramp the fans, its fine, but i prefer the way coretemp/hwmonitor/hwinfo measure temps and i like more that my fan settings react to what they measure. But FanXpert2 is much easier to use and setup, i have done mulitple test to set up the bios the way i liked it, i even tested my fans before on fanXpert2 to know their range of operation and if they had deadzones. As long as the user knows how FanXpert2 works into using PWM fans on CPU_FAN header and 3pin fans on CHA_FAN headers, it will work wonderful, and this is the main reason i still recommend it, i just wished Asus would consider doing it a stand alone in the future releases, there is no need to have AI Suite III.