{"id":270539,"date":"2025-12-22T22:30:06","date_gmt":"2025-12-22T21:30:06","guid":{"rendered":"https:\/\/www.hwcooling.net\/?p=270539\/"},"modified":"2026-01-07T00:27:03","modified_gmt":"2026-01-06T23:27:03","slug":"silence-it-asus-prime-geforce-rtx-5070-with-arctic-p9-pwm-deshroud","status":"publish","type":"post","link":"https:\/\/www.hwcooling.net\/en\/silence-it-asus-prime-geforce-rtx-5070-with-arctic-p9-pwm-deshroud\/","title":{"rendered":"Asus Prime GeForce RTX 5070 with 3\u00d7 Arctic P9 PWM PST Deshroud"},"content":{"rendered":"

Alongside our previous tests of premium 92 mm Noctua fans, we\u2019re adding something for value-focused users. For the more affordable Prime-series card, these are a better match. We\u2019ll measure how much quieter the card gets after swapping the stock fans for budget 92 mm Arctic P9 PWM PST models with sleeve bearings, and compare the noise to the Arctic P9 PWM PST CO variant with dual ball bearings for continuous operation.<\/p>\n

I discussed the operating characteristics of the Prime GeForce RTX 5070 in a review a few months ago. The sample I tested had one fan noisier than the others. Because of that, the card was not completely quiet even at minimum speeds. The card was more audible than it could have been. However, this would probably not be accepted as a reason for an RMA. With most Asus cards, though, you can easily replace the fans, because they allow the shroud to be removed without taking off the heatsink.<\/p>\n

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The Prime RTX 5070 is 30 cm long, but relatively narrow. Due to its proportions, classic system fans with dimensions of 120\u00d7120 or 140\u00d7140 mm are therefore not very suitable for the cooler. Compared to two 120mm fans it is longer, but for three it is already too short.<\/p>\n

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The heatsink under the shroud is divided into two fin stacks. Thanks to this, two 120mm fans can be mounted so that they blow over most of the fin area.<\/p>\n

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We already tried this in one of the previous articles. However, two 120mm fans are wider than the trio of original fans on the Prime RTX 5070, so they overhang to the sides and part of the airflow passes outside the heatsink.<\/p>\n

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The surface of the heatsink is better covered by a trio of smaller 92mm fans. In previous tests, we replaced the trio of Asus Axial-Fan units with three low-profile 92mm Noctua NF-A9x14 fans and Noctua NF-A9 fans with the standard 25 mm thickness. With them, the card\u2019s width can remain the same, and they can blow air over more fins than two larger fans.<\/p>\n

Today we will test how the card behaves with another set of fans measuring 92\u00d792\u00d725 mm, this time from Arctic. I will measure the operating characteristics using the Arctic P9 PWM PST<\/strong> model with fluid dynamic bearings. In addition, I will also include noise measurements with the Arctic P9 PWM PST CO<\/strong> variant featuring dual ball bearings, which I assumed could be slightly noisier due to the ball bearing type.<\/p>\n

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The fan comes in a simple box. Inside, apart from the fan itself, there is only a small bag with four self-tapping screws for mounting.<\/p>\n

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Some Arctic models carry the PWM PST suffix in their name, which stands for Power Sharing Technology and means that, compared to most standard fans, they have one special feature\u2014a splitter built into the fan connector, allowing you to daisy-chain multiple fans together. This is particularly useful for a graphics card with a trio of fans. The cabling is also more flexible and easier to tuck under a potential shroud than was the case with the Noctua fans connected via the supplied splitters.<\/p>\n

Another option is to use fans with a standard four-pin connector connected to a different type of splitter, which Arctic also offers in its portfolio. Up to four fans can be connected at once to their 4-pin PWM Fan Splitter. The result is also more compact and, compared to daisy-chained splitters, less prone to failure due to poor contact or one of the connectors in the chain coming loose.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Size (Form factor)<\/td>\n92 \u00d7 92 \u00d7 25 mm<\/td>\n<\/tr>\n
Speed range<\/td>\n0\u20133000 rpm<\/td>\n<\/tr>\n
Airflow (max.)<\/td>\n65.97 m\u00b3\/h (38.83 CFM)<\/td>\n<\/tr>\n
Static pressure (max.)<\/td>\n3.12 mm H\u2082O<\/td>\n<\/tr>\n
Rated voltage<\/td>\n12 V<\/td>\n<\/tr>\n
Current<\/td>\n0,12 A<\/td>\n<\/tr>\n
Connector<\/td>\n4-Pin Fan Plug + 4-Pin Socket<\/td>\n<\/tr>\n
Colour<\/td>\nBlack<\/td>\n<\/tr>\n
Warranty<\/td>\n6 years<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Included accessories:<\/p>\n

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  • 4\u00d7 Fan screws<\/li>\n<\/ul>\n

    For mounting the fans, I modeled a simple frame. With a length of around 30cm, it does not fit on most common 3D printers, so it is divided into two parts. The feet are separate. It is a printed plastic part, so it is not as robust and can be easily replaced if damaged; also, during prototyping I do not have to print the entire frame if the shape needs to be adjusted, for example because it does not fit exactly on the screw holes on the card or collides with some component.<\/p>\n

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    Everything is screwed together using M2 screws for plastic. You can easily buy them in packs of hundreds in Chinese e-shops.<\/p>\n

    For now, we will test the bare frame, which is seated in grooves at the corners of the heatsink fins.<\/p>\n

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    The fans were mounted using short silicone anti-vibration pins from Noctua. An alternative is the newer NA-SAV4 type, which already supports fans with heights of 10, 14, 15, 20, and 25 mm.<\/p>\n

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    First, we will look at how the card performed in terms of cooling across the entire range of operating fan speeds with the stock fans, and then we will go through the operating characteristics of the card with the Arctic P9 PWM PST fans.<\/p>\n