This mod is completely solder-free. Both fans are connected to the PS4 native fan connector.
Top Fan (APU): Noctua NF-F12PWM
Bottom Fan (GDDR5 VRAM): Noctua NF-S12A ULN
The stock loud PS4 Pro Delta fan was completely removed and replaced by 2 Noctua fans. The top fan has to be a fan with a VERY HIGH Static Pressure to create a proper air flow, because it cools both the APU and the Power Supply! If the Static Pressure is too low, the Air Flow will not be good enough to cool the APU and PSU properly. The Noctua NF-F12PWM has a Static Pressure of 2.61 mm H₂O when it spins with its maximum 1500 RPM . It does the cooling job properly and is still quiet. Its a PWM fan and the PS4 automatically adjusts the speed (RPM) to keep the temperatures it needs. I wouldnt recommend using any fan, that has a Static Pressure under 2.2 mm H₂O, because in some rare situations it will not cool the playstation good enough. In other words- I would only recommend using this fan for cooling the APU (and PSU) of the PS4 Pro, if you remove the original PS4 Pro fan!
There are only very rare situations, when the Noctua NF-F12PWM was spinning at maximum speed of 1500 RPM, Ive only ecountered it in some game menus, which probably have uncapped Framerate, which is stressing the hardware to the maximum. When playing the actual games, the framerate is most of the time capped to 30fps or 60fps, the RPM of the Fan stays around 1000-1200 judging by the sound level and is still like 4x more quiet than the stock PS4 Pro Delta fan.
Bottom fan Noctua NF-S12A ULN is a 3-pin fan and is permanently spinning at 800 RPM and cools the 8 x GDDR5 VRAM chips, which are additionally cooled by VGA RAM heatsinks (15mm x 15mm x 6mm).
Both fans are connected to the PS4 Pro fan connector by using a “Mini 3-pin to normal 4-Pin PWM” cable and an Y-splitter.
The GDDR5 RAM chips get ULTRA HOT without active cooling! I think the Sony’s cooling design in the PS4 Pro is flawed, because the stock fan is designed to just suck the hot air that the RAM chips produce and blow that air out of the case. But the chips have no access to cool air, which results in the hot air beeing kind of concentrated in 1 area and not really moving out properly, which adds additional heat! The RAM chips only touch a very small metal plate, that is by far not enough for proper cooling. That small plate also isnt connected to the the main metal housing. Basically the PS4 Pro cooling design is a half mess.
PS4 Pro Fan cable
- PKG Installation Info – File Overview [NPXS29005 Dump]
- PS4 Trophy Resigner