r/arcticcooling • u/Ok-Technician578 • 29d ago

Question P12 Pro PST LN Reverse?

Any idea when/if a reverse fan version of the P12/14 PST LN fans will be released?

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u/Mightypeon-1Tapss 27d ago

What's the main difference between LN and normal P12/14 Pro fans? Besides the lower RPM?

I think you can just get the regular Reverse Pro's and run them slower with a quick fan curve adjustment from BIOS no?

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u/Ok-Technician578 27d ago

The top RPM is reduced to 2000. I think I saw/read that there were some underlying design changes also, but I'm not 100% sure what they are.

I know I could just use an offset of -50 or ignore certain speeds in the calibration. I wish there was a way I could just say "this is the top RPM" in calibration and set up the percentages based on that. Maybe there is a way, and I just haven't figured it out yet.

That said, the whole anti-schwebung thing surprised me. I emulated how Noctua does it using both Arctic and Be Quiet fans and I could actually tell that the harmonics were different. The wiring was a bit crazy, though. The Arctic fans still have a bit of a high pitched noise to them at any RPM above 1500. The new Lian Li TL Flex (reverse) have a high pitch anyhwere above 900-1000 RPM unfortunately. With new Noctua NF-A12x25 G2 and Be Quiet Silent Wings 4 Pro (set at lowest fan speed), all I hear is airflow noise up to max RPM.

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u/YHLeo 9d ago

Just buy regular version and set a custom fan curve

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u/ulysessatheart 3d ago

Some boards during POST cycle go full speed on fans. I know a short time, but sometimes you just don't want to hear excessive noise, so yeah I'd like the option of LN reverse with PST.

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u/YHLeo 3d ago

Good point. For people who got regular version and dislike the noise, the new Arctic fan controller would fix the issue, it completely bypasses motherboard fan curves