• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Noctua Launches NH-P1 Passive CPU Cooler and LS-PWM Fan for Semi-fanless Systems

btarunr

Editor & Senior Moderator
Staff member
Joined
Oct 9, 2007
Messages
46,283 (7.69/day)
Location
Hyderabad, India
System Name RBMK-1000
Processor AMD Ryzen 7 5700G
Motherboard ASUS ROG Strix B450-E Gaming
Cooling DeepCool Gammax L240 V2
Memory 2x 8GB G.Skill Sniper X
Video Card(s) Palit GeForce RTX 2080 SUPER GameRock
Storage Western Digital Black NVMe 512GB
Display(s) BenQ 1440p 60 Hz 27-inch
Case Corsair Carbide 100R
Audio Device(s) ASUS SupremeFX S1220A
Power Supply Cooler Master MWE Gold 650W
Mouse ASUS ROG Strix Impact
Keyboard Gamdias Hermes E2
Software Windows 11 Pro
Noctua today released its much anticipated NH-P1 CPU cooler as well as the optional NF-A12x25 LS-PWM 120 mm fan. Custom-designed for fanless operation from the ground up, the NH-P1 is capable of cooling modern high-end CPUs with low to moderate heat dissipation completely passively in enclosures with good natural convection. For further enhanced performance or semi-passive setups that only spin up their fans when necessary, the NH-P1 can be outfitted with a low-speed, ultra-quiet 120 mm fan such as the new NF-A12x25 LS-PWM.

"The NH-P1 is our very first passive cooler, and it should be easy to see that we didn't just take a regular heatsink and omit the fan", says Roland Mossig (Noctua CEO). "A lot of engineering work went into designing this unit for fanless operation from the ground up and we're truly proud of the end result. In our completely fanless demo system, the NH-P1 cools an Intel Core i9-11900K running Prime95 at more than 3.60 GHz - this is a lot of processing power and a whopping 125 W kept in check with zero fan noise!"



The NH-P1 isn't just a regular heatsink without a fan: featuring much thicker, much more widely spaced fins, it achieves both the mass and the minimal airflow resistance that are required in order to excel in natural convection cooling. In fully optimised fanless systems, the NH-P1 is capable of cooling high-end CPUs with low to moderate heat dissipation using natural convection only (see setup guidelines and CPU compatibility list). This makes it ideal for powerful builds that have no moving parts and run absolutely silent. Topped off with the new, Torx-based SecuFirm2+ mounting system, Noctua's award-winning NT-H2 thermal compound and a 6-year manufacturer's warranty, the NH-P1 is the ideal cornerstone for premium-grade fanless or semi-passive builds.

"While we're very excited about the possibilities that the NH-P1 opens up, we also need to stress that building a passively cooled system is not as straightforward as building a regular system. For optimal results, components must be selected more carefully, and certain principles should be respected", Roland Mossig (Noctua CEO) explains. "Therefore, we offer detailed setup guidelines, a build guide video tutorial, a list of recommended cases as well as an extensive CPU compatibility list that will help customers to get the best possible results."

In addition to the NH-P1, Noctua released the optional NF-A12x25 LS-PWM 120 mm fan, a low-speed, PWM-enabled variant of the award-winning NF-A12x25 that is ideal for enhancing the performance of the NH-P1 in semi-passive systems. At a maximum noise level of only 12.1 dBA, the NF-A12x25 LS-PWM is nearly inaudible but will still significantly boost the performance headroom of the cooler. As the fan stops at 0% PWM, it can easily be set up for semi-passive operation so that it will only spin up when necessary. This way, the system will work fanless most of the time but still provide the flexibility to make better use of the turbo modes of more powerful CPUs that require some extra airflow to be cooled adequately under full load conditions.


For more information, visit the product page.

View at TechPowerUp Main Site
 
Joined
Feb 11, 2009
Messages
5,389 (0.98/day)
System Name Cyberline
Processor Intel Core i7 2600k -> 12600k
Motherboard Asus P8P67 LE Rev 3.0 -> Gigabyte Z690 Auros Elite DDR4
Cooling Tuniq Tower 120 -> Custom Watercoolingloop
Memory Corsair (4x2) 8gb 1600mhz -> Crucial (8x2) 16gb 3600mhz
Video Card(s) AMD RX480 -> ... nope still the same :'(
Storage Samsung 750 Evo 250gb SSD + WD 1tb x 2 + WD 2tb -> 2tb MVMe SSD
Display(s) Philips 32inch LPF5605H (television) -> Dell S3220DGF
Case antec 600 -> Thermaltake Tenor HTCP case
Audio Device(s) Focusrite 2i4 (USB)
Power Supply Seasonic 620watt 80+ Platinum
Mouse Elecom EX-G
Keyboard Rapoo V700
Software Windows 10 Pro 64bit
hmm semi fanless PC's, delicious.
The whole "increase performance with the optional fan" is pretty silly though, I mean sure you CAN do that but it should really not be advertised.
 
Joined
Jun 11, 2019
Messages
477 (0.27/day)
Location
Moscow, Russia
Processor Intel 12600K
Motherboard Gigabyte Z690 Gaming X
Cooling CPU: Noctua NH-D15S; Case: 2xNoctua NF-A14, 1xNF-S12A.
Memory Ballistix Sport LT DDR4 @3600CL16 2*16GB
Video Card(s) Palit RTX 4080
Storage Samsung 970 Pro 512GB + Crucial MX500 500gb + WD Red 6TB
Display(s) Dell S2721qs
Case Phanteks P300A Mesh
Audio Device(s) Behringer UMC204HD
Power Supply Fractal Design Ion+ 560W
Mouse Glorious Model D-
6-cores are listed as okay for full passive on the product page, lesss goooo :clap:
 
Joined
Jul 16, 2014
Messages
8,115 (2.29/day)
Location
SE Michigan
System Name Dumbass
Processor AMD Ryzen 7800X3D
Motherboard ASUS TUF gaming B650
Cooling Artic Liquid Freezer 2 - 420mm
Memory G.Skill Sniper 32gb DDR5 6000
Video Card(s) GreenTeam 4070 ti super 16gb
Storage Samsung EVO 500gb & 1Tb, 2tb HDD, 500gb WD Black
Display(s) 1x Nixeus NX_EDG27, 2x Dell S2440L (16:9)
Case Phanteks Enthoo Primo w/8 140mm SP Fans
Audio Device(s) onboard (realtek?) - SPKRS:Logitech Z623 200w 2.1
Power Supply Corsair HX1000i
Mouse Steeseries Esports Wireless
Keyboard Corsair K100
Software windows 10 H
Benchmark Scores https://i.imgur.com/aoz3vWY.jpg?2
he NH-P1 cools an Intel Core i9-11900K running Prime95 at more than 3.60 GHz

doesnt that chip normally run at 5.2ghz?
 

Mussels

Freshwater Moderator
Staff member
Joined
Oct 6, 2004
Messages
58,413 (8.21/day)
Location
Oystralia
System Name Rainbow Sparkles (Power efficient, <350W gaming load)
Processor Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard Asus x570-F (BIOS Modded)
Cooling Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory 2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s) Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage 2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s) Phillips 32 32M1N5800A (4k144), LG 32" (4K60) | Gigabyte G32QC (2k165) | Phillips 328m6fjrmb (2K144)
Case Fractal Design R6
Audio Device(s) Logitech G560 | Corsair Void pro RGB |Blue Yeti mic
Power Supply Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse Logitech G Pro wireless + Steelseries Prisma XL
Keyboard Razer Huntsman TE ( Sexy white keycaps)
VR HMD Oculus Rift S + Quest 2
Software Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores Nyooom.
That bonus 12db fan they released sounds more right up my alley, just slap those as case fans at 100% and call it a day
 
Joined
Jan 8, 2017
Messages
8,863 (3.36/day)
System Name Good enough
Processor AMD Ryzen R9 7900 - Alphacool Eisblock XPX Aurora Edge
Motherboard ASRock B650 Pro RS
Cooling 2x 360mm NexXxoS ST30 X-Flow, 1x 360mm NexXxoS ST30, 1x 240mm NexXxoS ST30
Memory 32GB - FURY Beast RGB 5600 Mhz
Video Card(s) Sapphire RX 7900 XT - Alphacool Eisblock Aurora
Storage 1x Kingston KC3000 1TB 1x Kingston A2000 1TB, 1x Samsung 850 EVO 250GB , 1x Samsung 860 EVO 500GB
Display(s) LG UltraGear 32GN650-B + 4K Samsung TV
Case Phanteks NV7
Power Supply GPS-750C
Having a completely fanless case with one of these is ill advised because eventually the heat builds up but then if you need to have case fans what's the point ?
 
Joined
Feb 18, 2012
Messages
2,715 (0.61/day)
System Name MSI GP76
Processor intel i7 11800h
Cooling 2 laptop fans
Memory 32gb of 3000mhz DDR4
Video Card(s) Nvidia 3070
Storage x2 PNY 8tb cs2130 m.2 SSD--16tb of space
Display(s) 17.3" IPS 1920x1080 240Hz
Power Supply 280w laptop power supply
Mouse Logitech m705
Keyboard laptop keyboard
Software lots of movies and Windows 10 with win 7 shell
Benchmark Scores Good enough for me
Joined
Nov 16, 2020
Messages
164 (0.13/day)
Location
USA
Processor 5800x3D
Motherboard x570 Extreme 4
Cooling Deepcool AK620 Digital
Memory 2x16 Crucial 3200 Mhz
Video Card(s) 4070 SUPER FE
Storage 500 GB WD SN750 / 870 Evo 500 GB / Kingston 480 GB SSD
Display(s) Alienware 34 aw3418dw / ROG Swift pg27q
Case Corsair 3000D
Power Supply Seasonic V3 1000w
Mouse Model O
Keyboard GMMK Pro w/ SP Magic Girls
Software WIndows 10 Pro
Curious of the performance with a fan slapped on it.
 
Joined
Oct 25, 2018
Messages
1,117 (0.56/day)
Location
Coriovallum
System Name Merc v8
Processor Ryzen 7800X3D
Motherboard Gigabyte X670 Gaming X AX
Cooling Noctua NH-D15
Memory 2x16GB G.Skill Flare X F5-6000
Video Card(s) MSI RTX 3070 VENTUS 3X PLUS
Storage Solidigm P44 1TB, &2TB, Crucial MX500 2TB
Display(s) LG UltraGear 34GP950G-B
Case Caselabs Mercury S8
Audio Device(s) Some Schiit with Edifier S351DB
Power Supply Seasonic TX-750
Mouse Logitech G600
Keyboard Ducky One 2 (pudding)
Software W11Pro
We need a review, asap!

I see it's (only) €109,90 in Germany.
 

freeagent

Moderator
Staff member
Joined
Sep 16, 2018
Messages
7,421 (3.67/day)
Location
Winnipeg, Canada
System Name Altered Beast
Processor AMD R9 5900X/5800X3D
Motherboard Asus Crosshair VIII Dark Hero
Cooling Thermalright Phantom Spirit 120 EVO, 1x T30
Memory 2x8 G.Skill Trident Z Royal 3200C14, 2x8GB G.Skill Trident Z Black and White 3200 C14
Video Card(s) Zotac 4070 Ti Trinity OC
Storage WD SN850X 2TB, SN850 1TB, SN770 1TB - Asus Hyper M.2, 2x SN770 1TB
Display(s) LG 50UP7100
Case Fractal Torrent Compact RGB
Audio Device(s) JBL 2.1 Deep Bass
Power Supply EVGA SuperNova 750w G+, Monster HDP1800
Mouse Logitech G502 Hero
Keyboard Logitech G213
VR HMD Oculus 3
Software Yes
Benchmark Scores Yes
It’s using 6x 6mm pipes, so with a fan on it I don’t see performance being exceptional, maybe on par with a D15.. only one way to find out! :D
 
Joined
Dec 5, 2020
Messages
159 (0.13/day)
The cooler claims to be capable of cooling it running at stock TDP, which is 125W. Intel's TDP is defined at base clock which for that CPU is 3.50GHz. When running at 5.2GHz it is exceeding that value by quite a bit, so the cooler probably won't be able to handle it for extended periods of time.
Intel's TDP isn't defined for any clock speed as power draw is very variable depending on the workload. 3.5GHz is just the minimum it might drop to. The stock TDP is 125w and clock speeds will adjust based on workload to keep within the 125W enveloppe.

In some workloads this might mean 3.5 GHz while in others this might still mean 5.2 GHz (this is just on one core though as all core boost is 4.8 GHz for a 11900k). Games for example don't draw that much power so you'll probably hit top boost speeds in them while something like Linpack will run on very low clock speeds if you want to stay under 125W. Most realistic workloads will be fairly close to the 4.8Ghz all core boost though as realistic workloads don't draw that much power.
 
Joined
Jun 29, 2018
Messages
444 (0.21/day)
Intel's TDP isn't defined for any clock speed as power draw is very variable depending on the workload. 3.5GHz is just the minimum it might drop to. The stock TDP is 125w and clock speeds will adjust based on workload to keep within the 125W enveloppe.

In some workloads this might mean 3.5 GHz while in others this might still mean 5.2 GHz (this is just on one core though as all core boost is 4.8 GHz for a 11900k). Games for example don't draw that much power so you'll probably hit top boost speeds in them while something like Linpack will run on very low clock speeds if you want to stay under 125W. Most realistic workloads will be fairly close to the 4.8Ghz all core boost though as realistic workloads don't draw that much power.
It literally is defined like I wrote in the tooltip of "TDP" on Intel ARK: "Thermal Design Power (TDP) represents the average power, in watts, the processor dissipates when operating at Base Frequency with all cores active under an Intel-defined, high-complexity workload. Refer to Datasheet for thermal solution requirements."
We do not know what the load they mean is, but it doesn't matter since almost no consumer motherboard will respect the TDP and try to run in one of the turbo modes for as long as possible. Business-class motherboads will, however. What matters is adhering to specifications by both Intel and Noctua, and that's why Noctua used the frequency they used in the press release.
 
Joined
Mar 28, 2011
Messages
65 (0.01/day)
Location
Estonia
Processor AMD Ryzen 5 3600X
Motherboard MSI B450M Mortar
Cooling Arctic Freezer 34
Memory Crucial Ballistix 2x16GB 3200MHz
Video Card(s) ASUS TUF RTX 3060 Ti
Storage 1TB + 1TB nvme SSD
Display(s) Gigabyte M27Q, Ag Neovo H-W22,
Case Thermaltake V1 mATX
Audio Device(s) int
Power Supply Seasonic S12II 520W
Mouse Razer Deathadder
Keyboard Logitech K835 TKL MECHANICAL
Software Win 10
Who is this really for?
Is it mainly for "just because (we can)" as i think the situation where 100% passive cooled solution is *actually* required there are better specialty solutions available.
 
Joined
Apr 18, 2019
Messages
1,866 (1.03/day)
Location
Olympia, WA
System Name Sleepy Painter
Processor AMD Ryzen 5 3600
Motherboard Asus TuF Gaming X570-PLUS/WIFI
Cooling FSP Windale 6 - Passive
Memory 2x16GB F4-3600C16-16GVKC @ 16-19-21-36-58-1T
Video Card(s) MSI RX580 8GB
Storage 2x Samsung PM963 960GB nVME RAID0, Crucial BX500 1TB SATA, WD Blue 3D 2TB SATA
Display(s) Microboard 32" Curved 1080P 144hz VA w/ Freesync
Case NZXT Gamma Classic Black
Audio Device(s) Asus Xonar D1
Power Supply Rosewill 1KW on 240V@60hz
Mouse Logitech MX518 Legend
Keyboard Red Dragon K552
Software Windows 10 Enterprise 2019 LTSC 1809 17763.1757
Wish this had come out just a little sooner. I ended up with a large black FSP cooler rated for 250w that I 'just removed the fan' for my R5 3600. Works well; I'm able to sustain max boost indefinitely after some power limit tweaks. There's exhaust fans directly above and next/behind the HS, so I can't claim it's toally passive. Maybe, I'll wait for the black edition of this Noctua and upgrade then?
 
Joined
Feb 20, 2019
Messages
7,194 (3.86/day)
System Name Bragging Rights
Processor Atom Z3735F 1.33GHz
Motherboard It has no markings but it's green
Cooling No, it's a 2.2W processor
Memory 2GB DDR3L-1333
Video Card(s) Gen7 Intel HD (4EU @ 311MHz)
Storage 32GB eMMC and 128GB Sandisk Extreme U3
Display(s) 10" IPS 1280x800 60Hz
Case Veddha T2
Audio Device(s) Apparently, yes
Power Supply Samsung 18W 5V fast-charger
Mouse MX Anywhere 2
Keyboard Logitech MX Keys (not Cherry MX at all)
VR HMD Samsung Oddyssey, not that I'd plug it into this though....
Software W10 21H1, barely
Benchmark Scores I once clocked a Celeron-300A to 564MHz on an Abit BE6 and it scored over 9000.
The video guide basically recommends not using a dGPU as it'll block the airflow for the cooler and puts a source of heat (and noise) right in the worst possible place for this particular cooler.

Which then brings me on to the madness of recommending a large, well-ventilated full-size ATX case for an IGP build that could just as easily be a NUC:



Throw in the need for a fan to make real use of Turbo/PBO and it's basically looking like a "buy one because you think it's neat, not because it's actually practical"

Honestly, the best thing about this product is the 12dBA fan they made specially for it. If you're going to run any fans, you want them to be quiet and I'm fairly sure 12dBA is low enough that I'm not ever going to hear it.
 
Joined
Dec 26, 2006
Messages
3,471 (0.55/day)
Location
Northern Ontario Canada
Processor Ryzen 5700x
Motherboard Gigabyte X570S Aero G R1.1 BiosF5g
Cooling Noctua NH-C12P SE14 w/ NF-A15 HS-PWM Fan 1500rpm
Memory Micron DDR4-3200 2x32GB D.S. D.R. (CT2K32G4DFD832A)
Video Card(s) AMD RX 6800 - Asus Tuf
Storage Kingston KC3000 1TB & 2TB & 4TB Corsair LPX
Display(s) LG 27UL550-W (27" 4k)
Case Be Quiet Pure Base 600 (no window)
Audio Device(s) Realtek ALC1220-VB
Power Supply SuperFlower Leadex V Gold Pro 850W ATX Ver2.52
Mouse Mionix Naos Pro
Keyboard Corsair Strafe with browns
Software W10 22H2 Pro x64
Can I get it in electro-plated gold please??
 
Joined
Feb 4, 2013
Messages
140 (0.03/day)
Location
United Kingdom
Processor AMD Ryzen 7 7800X3D
Motherboard ASRock B650M Pro RS
Cooling Arctic Liquid Freezer II 240 A-RGB
Memory 32 GB DDR5-6000
Video Card(s) NVIDIA GeForce RTX 3080
Storage Samsung 990 Pro
Display(s) LG C2 42" 4K OLED, TCL 43" 4K VA
Case Cooler Master MasterBox NR400
Audio Device(s) Logitech Z906
Power Supply Corsair RM850x (2018)
Mouse Logitech G305
Keyboard Tecware Phantom RGB (105-key)
Software Windows 11
Joined
May 3, 2018
Messages
2,235 (1.04/day)
So I have a cooler with two fans providing superb cooling that I can't hear unless I open the case and put my ear close to the cooler, why on earth would you even bother with this monstrosity that costs more than a cooler with fans. My whole case has 4 fans, plus 2 on the cpu cooler and it's whisper quiet and it's a P500A, open mesh system. Given the GPU will more than likely being the limiting noise component what's the point of being below that threshold?
 
Last edited:
Joined
May 24, 2007
Messages
5,401 (0.88/day)
Location
Tennessee
System Name AM5
Processor AMD Ryzen R9 7950X
Motherboard Asrock X670E Taichi
Cooling EK AIO Basic 360
Memory Corsair Vengeance DDR5 5600 64 Gb - XMP1 Profile
Video Card(s) AMD Reference 7900 XTX 24 Gb
Storage Samsung Gen 4 980 1 TB / Samsung 8TB SSD
Display(s) Samsung 34" 240hz 4K
Case Fractal Define R7
Power Supply Seasonic PRIME PX-1300, 1300W 80+ Platinum, Full Modular
Wow I would like to have this.
 
Joined
Mar 9, 2018
Messages
187 (0.08/day)
I haven't found an actual use case scenario where absolute silence is needed, yet, doesn't mean they don't exist. There are also people that like the idea of building a fanless computer. For what is worth, this looks like an upgrade to what has been previously available
 
Joined
Mar 28, 2020
Messages
1,632 (1.12/day)
I never find "fanless" cooler like this useful. When you want a completely fanless system, you need the heat to be transferred to the case/ out of the case so that heat will not build up within the chassis. For a design like this, you will still need some sort of active cooling to bring in fresh air, and exhaust hot air out of the system. In addition, if you have a piping hot GPU, fan noise is unavoidable.
 
Joined
Sep 4, 2013
Messages
72 (0.02/day)
System Name JUV3
Processor Intel Core i5 9400F
Motherboard EVGA Z370 Classified K
Cooling NoFan CR-95C Copper
Memory Kingston HyperX Fury DDR4
Video Card(s) ASUS ROG Strix GeForce RTX 2070
Storage WD_Black SN750
Display(s) AOC AGON AG273QX
Case Thermaltake Core P3 TG
Audio Device(s) Topping DX3 Pro+ with Beyerdynamic Amiron Home
Power Supply Seasonic Platinum Fanless
Mouse Logitech G Pro X Ultralight
Keyboard Durgod Taurus K320 with Cherry Silent Red switches
Having a completely fanless case with one of these is ill advised because eventually the heat builds up but then if you need to have case fans what's the point ?
I've had fanless gaming PCs since 2013. Only the gpu has fans with the "fan stop" feature. I use open cases so there's no heat being trapped.

This Noctua heatsink seems small compared to the NoFan heatsinks. However, it looks like it's more compatible with smaller cases.
 
Last edited:
Top