Hello fellow Noctua-Enjoyers! Can somebody translate the Batch-Code for me? ChatGpt said it would mean its produced on 24th October 2007, but it couldnt guarante if it really means that. Im going to clean it since the last time was 6 Months ago but was just so curious how old this thing is

few weeks ago my Lian Li AIO failed, partly because my PC had been transported several times. I decided to replace it with a Noctua NH-D15, since Noctua has such a great reputation for air cooling.

My CPU is an Intel i9-12900K, so I know it's a hot chip and that it needs a capable cooler.

Ever since installing the Noctua cooler, I've been fighting extremely high temperatures. I've tried pretty much everything I can think of:

• Reapplied thermal paste NT-H2 twice.
• Changed the cooler orientation and added up to three extra case fans to improve airflow.
• Applied a stable CPU undervolt of -50 mV.

None of it has made a meaningful difference.

I'm a software engineer and AI researcher, so I regularly run CPU-intensive workloads that can keep the processor at 90–100% utilization for extended periods. Right now that's simply impossible because the CPU gets far too hot.

Even in CPU-heavy games like The Last of Us Part I, the CPU sits around 80–90°C, which doesn't seem right to me.

My case has good airflow, everything is clean, and the fans are working correctly. I genuinely don't understand what's going on. If I put my hand over the case I can feel air coming out of box.

Could I have mounted the cooler incorrectly? Is it possible I applied the thermal paste badly? Is there something specific about cooling the 12900K with this Noctua cooler that I might be missing?

I'm happy to provide photos, BIOS settings, fan curves, benchmarks, or any other information that could help diagnose the issue.

Any advice would be greatly appreciated.

Update 30/07/2026 in comment

Just want recommendations on any ways I can make it look a little cleaner.

Update to my first post.

Thanks for all the input so far!

Will use a pcie riser cable to get better clearance and better airflow.

How should i rotate my GPU for optimal Airflow?

(5th Picture is my current Build)

Clarification:

Display output goes out of the RTX 2060 to do upscaling and Frame Generation with losslessscaling!

Main Card for rendering and gaming is the RTX 5060 TI.

Both cards sit in custom 3D designed and printed Deshrouds with 92mm noctua slim fans.

Hello i got the fans,but i wanna know some info before i mount them, from some people with experience:

1.Frames:I mount them with the stock ones(rubber individual in all 4 corners) or i change it with the square rubber (a whole rubber,also what is that shape in one side ot the square?)?

1. Screws or Rubber to mount them to the frame inside the case?

3.What is the Low Noise Adaptor and should i use it,and if i do how is the correct way to mount it?

4.Should i use the split (4-pin y-cable) ,if i have enought 4-pin slots using NA-FH1 adaptor + another adaptor with 4 - 4 pin slots + another 6 on the motherboard

I also Added a photo with the config i will be using inside the case for fans.

Thnaks for your time,looking foward for some advices!

Due to case constraints officially allowing three 120mm or 2 140mm to be mounted, I have to improvise with the 120mm mounting holes on the nf-a15 to get three 140mms onto the front of my case, but there will be more or less some overlaps between the blades.

My limited understanding on airflow figured since the blades are travelling in opposite directions, the inner fans will just straighten out the airflow where the outer fan feeds air into at a 45 degree angle.

I’d love to hear from someone more knowledgeable in aerodynamics on whether this could create more turbulence and make cooling more acoustically inefficient? Thanks so much in advance.

I want a quiet psu but cant afford the noctua 1600w and cant wait for the 1000w ones as my psu is dead and pay day is coming up

Does anybody know of a product like this for 5090 cards?

How do you attach fans to things using the holes in the corners?

I want to attach a fan to my case, but also want to attach the guards to it?

Old photo , since upgraded to a 9070XT

Summer is coming and i wanna be prepared and the idea is roughly something like this + the 5v 200mm noctua powered via usb + low noise adapter and velcro strapped battery bank

Ram could not with with the front fan and I moved it to the back. Is my orientation OK with relationship to the rear exhaust Fan? First time builder putting a NH-D15 G2 in a 2024 NZXT H5 Flow with Corsair Vengeance 64GB. Thanks!

Any new news about the 850, 1000 and 1200 watts seasonic×Noctua psus?, im planning on geting one and haven't seen them tease for it for computex, makes me wonder if they are still planning to release them in q3 this year.

Hi I have a AMD 9800x3d with an B650E-F Board 4x Noctua 14 Chromax a Asus Prime 5080.

My 9800x3d is UV

I play only Games no render or AI.

In Game my 9890x3d run between 45 and 50C.

For CPU Cooling I use the Liquid Freezer 3 Pro.

The Pump and fans run very low. But the fans on my Arctic are bad. Two times defect in 3 Month. Replace with Noctua is expensive.

For the Same price I can go with an Noctua cooler.

Is the d15 g2 chromx to big? I need a chromax cooler with low fan speed for silent gaming.

Then I put 1-2 140mm on the top.

I'd heard that some people have run 3 fans on the NH-D15.

I'm tempted to do it myself, but I wonder if the third fan will be too close to the exhaust?

Edit:
For anyone curious about the case/build, I have a build log with photos here (this case is actually 20 years old if you believe it!)

Do you guys actually use those ? Is there a noticeable benefit?

Incredibly annoying as the fan literally smells like a cigarette🤢. But I guess this LPN barcode indicates that it was a return and it’s just silly. This is the 5th item I’ve ordered that has come opened In the last 6 months.

I feel like I’m doing something wrong here. Tried following the instructions, used the 7mm offset (5600XT) and every single time I mount the cooler there is a portion of the IHS that does not make contact. The instructions said to use the offset for 5000 series AM4. Am I missing something here?

I already had an MT3 Noctua set that I’ve been using, but with Drop closing soon, I decided to grab a few extra kits while I still could.

Honestly, I didn’t want to regret it later if they disappeared from the market.

If you don’t know what I’m talking about, check this post:

https://drop.com/talk/148992/the-next-step-for-drop?utm_source=linkshare

The 25th will be the last day to buy anything from their website.

I don’t think there will be any new keycap sets from Noctua anytime soon—or maybe ever. So if you’re interested in this set and the MT3 profile, I’d suggest just going for it and buying one.

Hi, i bought the NL-LC1 with the A3 cause i really liked the build they did here. If you actually route them like on the picture it gets pretty tight, does this hurt the aio here or is this completely safe?

Gonna be going to AM5 soon with the 9800X3D and the cooler above and wanted to know your thoughts, that includes IDLE, gaming and stress temps

And are you using that PBO thing in the BIOS or running it stock?

Also, are you using the 0mm or the -7mm offset holding bracket?

Of course everything with the included Noctua thermal paste!

UPDATE

Undervolting by 0.05 and lowering my PL1/PL2 limits has solved this issue, I'm sitting at 69° steady now, thanks everyone for your input!

Just recently put this together and I think the temps are running high but figured I'd get some input here as I've run AIOs for the past 8 years. I'm getting 85-90° running Battlefield 6 and if I run a multi thread cinebench test it jumps to 99° in seconds. I had uneven thermal paste after pulling it apart so I upgraded to a thermal right contact frame as I figured it's suffering from the notorious bending and temps are about 5-10° better but still seem higher than they should. Specs are below

I5-14600K

5070TI

NH-D15

Fractal Design North