Important PSA about "bring your own fan"

The fans for folks looking to purchase a motherboard only have been “coming soon” for a few weeks now… I wonder if anyone from Framework can comment on when they might be in stock? Also, it doesn’t look like you can preorder a motherboard with a fan right now (unless I’m missing something). Which keeps folks from getting into the batch queue.

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Maybe you might have fallen into the same confusion I did perhaps?

I remember looking at the mainboard thinking I wasn’t able to attach a fan, but I later realised the board bundles the mounting kit anyway.

So it’s safe to purchase a fan somewhere else, so long as it’s a standard 120mm fan, and you should have the bracket to attach it when the board arrives!

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Michael,

Have you read this? How to use an RGB fan with Framework Desktop (AMD Ryzen™ AI Max 300 Series). It has details on Linux use that may help..

I saw that too, none of the fans framework are selling meet that spec. The only Noctua fan that meets that spec is an industrial unit.

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Hey, thanks for catching this. We recommend a 12V, PWM-controlled 120mm fan that delivers a minimum of 60 CFM and 2.0mm H20 air pressure. We’ll be updating the marketplace listing for the Mainboard and configurator FAQ with the correct information soon. Thanks!

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I’m getting a be quiet Silent wings Pro 4 for my desktop. It has 83.9 CFM. The non pro version is 76.7 CFM. Both meet the minimum requirements. I’ve got these fans on my CPU cooler on my desktop and they are very quiet fans when not maxed out. Here is a comparison of them.

Silent Wings 4 comparison

Thank you for the clarification.

For anyone interested, the Noctua - NF-A12x25 HS-PWM is now in stock for separate purchase.

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Thanks for the good information. This page implies that the HS variant of the NF-A12x25 is significantly louder, in the 30s dBa: Noctua NF-A12x25 PWM Special High-Speed Edition Review - Page 9 of 10 - Hardware Busters

I think I’ll give the G2 a try. It exceeds the requirements at 1800rpm, at 22dBa.

Ok I figured it would be prudent to compare apples-to-apples, so here’s a review of the G2 by the same site: Noctua NF-A12x25 G2 120mm Fan Review - Silly expensive? - Page 6 of 10 - Hardware Busters

Louder than the figure Noctua claims at 30 dBa, but still quieter than the HS by around 5dBa, and among the quietest fans in the list.

I built my machine with the 128GB mainboard in a mini-ITX case. Using Noctua 12x25 on the CPU, 14x25 on the front, and 12x15 on back due to small gap between the heat sink and back panel. Works great! And nearly silent. The CPU fan often shuts off, it runs so cool!

I did buy and return 2 other fans I thought I needed due to incorrect info on the marketplace page, but that has been fixed…

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Is there a reason it would keep resetting the colors back to none on linux? Does it not always persist across sleep/boot?

I was inspired seeing an NF-A14x25r G2 PWM in the FW Desktop Exploded View so I ordered an NF-A14x25r G2 PWM chromax.black and installed it. To replace the shroud depth, I used m4x8x1mm black nylon washers.

I ran CPU-Z’s Stress test for 15 minutes using the stock Noctua NF-A12x25 HS-PWM & then switched over to the NF-A14x25r G2 PWM and repeated the test. In the end, Tdie was basically the same ±1°C with the NF-A12 @2400 rpm & the NF-A14 @1500 rpm

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Good to learn and know. A bit of a surprise. As the diff between the airflow and pressure of the two on an air radiator are pretty different.


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Interesting charts. I don’t think a static pressure rating for Framework’s NF-A12x25 PWM has been published, but because it’s a slightly higher rpm NF-A12x25 PWM G1, assuming the static pressure world be closer to the blue line on the first chart, than to the G2 green line, and the next Gen 140mm fan would be the NF-A14x25/r G2 PWM?

How to make the Framework Desktop run even quieter

Noctua says on this page that the Framework NF-A12x25 HS-PWM is still preferred over the NF-A12x25 G2 PWM in high ambient temperature situations as it runs at a much higher rpm, and this may be the case vs the NF-A14x25r G2 PWM as well, so I’ll do some more testing in the summer months, although it may not be dramatically different where I live in the Pacific Northwest, due to our lower summer temperatures.

I think “next Gen“ is referring to G2

I put the charts through Gemini a couple of times to get a better understanding of what they were showing and the bottom line seems to be that in a CPU cooler environment, the significantly higher airflow of the 140mm g2 is going to outperform the higher static pressure of the 120mm g2, although in radiator environment, this world be reversed.

Cybenetics tested all 3 of them including the HS version. They provided PQ charts.

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Those are great. I didn’t dig in to the site yet to answer this for myself. But I’ll ask you, do you happen to know which kind of radiator fins they push the fan into for their tests?

@s_m8o See my post above about the Cybenetics benchmark results

I put the A12 G2 100% speed and A12 HS 90% speed PQ charts together - because at this setup they have similar/comparable PQ curves.

A12 G2 runs at lower speed so the noise should be better than A12 HS.

My theory is that G2 will perform better (in terms of noise) but HS can push more at 100% speed.

Edit: adding A12 G2 100% speed vs A14r G2 100% speed - the slope of the curve is different

Next is to get the CPU radiator fin’s PQ curve. But it’s probably difficult to get.

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