Hi planning build with Z77E-ITX in Bitfenix Prodigy Black Case
Mobo has 1 x Chassis Fan connector (1 x 4-pin) voltage controlled
Looked all over and even the manual doesn't give spec for how much current the chassis fan header on the mobo supports.
Case has great airflow for air cooling, but only one 5.25" bay that I will be using for a dvd drive and NOT a fan controller. PCI plate external fan controller out of the question because my graphics card will be using both slots. The pc will be on 24/7 and i think running fans unnecessarily at full power from the PSU here would be such a waste.
I personally like running fans off Molex connector and not from the MB, you can purchase a fan extension that reduces voltage to 7v instead of 12v, this will significantly reduce the rpm thus the noise.
They are usually either 1A or 2A. Even if it's 1A, with only those two fans you will be fine.
The speed control will work through voltage-regulation (provided your board supports it). Using a splitter, both fans will receive the same voltage - and you do not want to let the voltage go below the start-up voltage of your fans (though your motherboard probably won't output less than 5v to the fans anyway). You cannot independently control each fan, but they will both spin according to the fan profile that is probably either CPU-load controlled or temperature controlled (and sometimes either can be selected as an option - I don't know about your board specifically - read your manual). You may have to set the chassis fan profile in the BIOS (or maybe included software) to voltage-reg instead of PWM since your fans are not PWM. But otherwise it should work fine.