Here is my R4 Case(system in Sig), I want to replace all my current fans to cool all the components but especially the GPU region where I plan to SLI:
Green= 4 Pin Fan headers, total of 5, the top 2 are CPU headers, 3pin fans can only ran max RPM on these, 3pin fan are controllable via voltage by all other fan headers.
The Gigabyte Windforce Cooler exhausts most of its intake toward the side panel fan, whose approximate size I drew, the second GPU will go on the White PCIE slot and occupy expansion slots 5 &6, two GPU will be have 1 slot distance between them.
The cricle 2 is a PWM fan splitter I connected the rear fan header, the Rear and Side exhaust fans are plugged in there.
Intake: 2X Stock Silent Series R2 Fans 69 CFM @ 1000 rpm, controlled via a 3 speed controller(capable of 3 fans only plugged in 2),
Exhaust: 2X Xigma tech XLF-1454 fans 63.5 CFM @1000 rpm, 16 dba, controlled via the PWM fan splitter through the mobo header
Cooler: Phantek PH-TC14PE, 2X PH-140 78 CFM @1300 rpm 19 dba, controlled via a PWN fan splitter through one of the two mobo CPU header.
Current Fan mounts:
Front 2X140mm(can only accept 139X139 or 140X140 fans)
Bottom, Side & Rear 1X 140 or 1X 120(room for special fans like TY-141 on bottom or Rear, not side because of sound abosrbing material in the way)
Top(currently sealed for sound reduction) Room for 2X 140mm fan, only 140X140 or 139X139 mounting holes available.
Current considering the following fans: Silverstone Air penetrator AP141, This fan seem to be highly rated for its air channeling ability, seem to be a great intake fan, and in this HTL review it dramatically reduced the temperature in a Define XL case(Benchmarks 1 & 4).
I plan on getting 4-5 fans(current slots and either bottom intake or top-rear exhaust), if you have experience with good 140mm fans and air cooling SLI GPUs like mine or Define series fan mod please let me know.
Need fan & fan location suggestions with the following priorities:
1. All 140mms(prefer quiet fans with good airflow)
2. Good Airflow(Air channeling optional but preferred for intake fans)
3. Quiet at full rpm (don't have to be silent)