what are the radiators manufacturer and model?
if you are running high 20+ FPI, the cluster is a lil timid on static pressure @ 12v.
like the GTX/stealth rads. the "looser" fin per inch would be a better alternatative
with all the surface area. the 480 and 360 will easily cover the hardware and the
240 (if used) can be used as headroom if in a high ambient situation or fan fail.
only your testing can really determine how low the fan speed can go without
3770k|ASUS MVF|EVGA 670 SLI|Corsair Platinum 16GB 2133|CaseLabs SM8|Custom Loop
2700k|ASUS MIVE-Z|EVGA 660ti SLI|G Skill X 16GB 2133|FD Midi|Corsair H100
2500k|ASUS MIVG-Z|EVGA 660ti|Corsair Platinum 8GB 1866|FD Mini|Corsair H100