How to Fan swap Enhance ENP-7660B to black Noctua NF-A4x20

[@AutodidactEngineer]

I can't stop binge watching these videos, very informative!

[@henryfair8790]

So, after lot of research, is really noctua dangerous? Could anyone prove it?

[@Kinrian2797]

Thank you for the wonderful tutorial on the step by step of removing and inserting the noctua fan. Decided on getting the 2pin black noctua fan from you guys. Can't wait to use this on a future velka 3 build later this month.

[@jvw_cs]

what gloves are you wearing to protect yourself and are they necessary? what are the precautionary steps one should take before doing something like this?

[@L91]

Very nice, considered doing this with mine since my system can only pull about 450W max. Where can I find the chromax.Black Noctua fan? Much appreciated 🙏

[@overtekltd2212]

www.overtek.co.uk/collections/fans/products/noctua-upgrade-fan-for-enhance-enp-7660b

[@Sanzhar94]

​@@overtekltd2212link doesn't work

[@overtekltd2212]

@@Sanzhar94 correct, Noctua didn't realise we were supplying as stand alone, even if we have chopped, stripped, re-crimpped, heat shrinked and put a new connector on. Although never expressed when they agreed supply, just assumed we would be only fitting into a final product. So we were forced to take that down, or have supply issues. Can still be supplied if you drop us an email, just not openly on our website any more, unless integrated into a product

[@Hellbryan1]

Thanks for the video, is this fan Pwm or flx?

[@overtekltd2212]

It's run as a 2 wire, which ever has less less wires of the 2. www.overtek.co.uk/collections/fans/products/noctua-upgrade-fan-for-enhance-enp-7660b

[@Spectrophia]

Great video!

[@Tearis01]

Hey, is it possible to buy the fan? I can’t find the option to buy the fan separately on your website. Thank you

[@wakuban9299]

where you can get 2 pin and black version, nactua doesn't supply it officially?

[@wakuban9299]

how to place 4 pin from Noctua supplied onto 2 pin ENP-7660B without moding cable?

[@overtekltd2212]

www.overtek.co.uk/collections/fans/products/noctua-upgrade-fan-for-enhance-enp-7660b

[@siyulater]

Will turning the power supply fan to intake be beneficial for fan noise versus exhaust? My ENP-7660B VK is very loud at load despite pulling less than 350 watts from the wall, so I was wondering if changing the fan orientation to intake would cool the PSU down for less rpm?

[@overtekltd2212]

Is it loud with no load as well. ie does the fan speed vary at all?

[@siyulater]

@@overtekltd2212 The fan speed varies between idle and load. I just can't seem to figure out why it's so loud despite the specifications.

[@overtekltd2212]

@@siyulater perhaps the ambient temps in your case are high at load. you can try reversing it.

[@siyulater]

@@overtekltd2212 alrighty. Thank you for the help and advice!

[@LBQuan]

I would not recommend changing the fan orientation, as the engineer has it oriented in accordance to how the internal components that makes the PSU are laid out. Components like the bridge rectifier can get very hot and is place near the exhaust. If you were to make it an intake with this particular design, the fan will be push that heat towards the more heat sensitive components like the secondary filtering capacitors. This can have an adverse effect to the PSU's lifespan, electrical performance (voltage regulation, dc quality output, etc. and it's ability to maintain ATX specs), and may even cause the fan to spin harder, as those heat sensitive components that shouldn't be getting that hot are now getting that hot.

[@captain15642]

would this be the same exact procedure and parts for the ENP-7140B?

[@overtekltd2212]

Hi Kirk, it has a different fan mapping and voltages so different fan would be required, we use a Sunon as the startup voltage is to low for a 12V Noctua. It would mean the fan would be silent at startup not moving on power up as it would be held stalled until load/thermals cause the voltage to rise enough to overcome the stall. Depending on load it may then cool the PSU with the fan output dropping till the fan stops again. In short you may find you end up with a fan cycling up and down fan speeds / on/off. The interesting question is that arises from this not (Will that be annoying?) as that's a personal/individual question depending on how sensitive one is, but more; Will holding a Noctua fan stalled for a long period of time cause any long term issue? The answer to which I shall come back with, as I'll get Noctua to answer that one.

[@overtekltd2212]

Hi Kirk, Just to follow that up with confirmation from Noctua that it would not cause any damage to the fan. So, if you want a 12V Black Noctua Fan with the correct connector we can provide one, just drop us a message. I will say though that it won't have sufficient cfm (air flow) for the full output load on the 400W power supply. That means the power supply will run hotter and may hit thermal protection at high loads causing it to shut down along with any load on the output. At say 50% load it would be fine. You just have to weight up what you want, lower noise will always tend to equate to higher thermals for the most part with air cooling. Bearing types do have an impact on this, but at 40mm FDB type bearings, like Noctua, have an rpm limitation. Which is why for the most part stock 40mm fans are dual ball bearing. Sunon Maglev that we apply to the 400W provides the same level as cooling as stock but is a little quieter, although not as quiet as Noctua. So ultimately it all depends on your application and load as to choice you make to suit it.

[@harryl9948]

Does the fan come with the right connector if I was to buy it off Amazon? I already have the psu from your website

[@overtekltd2212]

From amazon it will come as Notua produce them with a standard 2.54mm pitch fan header which will not fit. Drop us a contact message through our website and we'll get back to you with the the Noctua fan we produce that fits straight in.

[@Crftbt]

Flex ATX Fan Upgrade Speedrun 100%

[@xtvst]

Have you replaced a 12v stock fan with a 5v Noctua? 🤔

[@jvandervyver]

I had to search for a bit to get the answer, but it seems this particular PSU keeps the fan voltage below 5v up until around 500-watt. I assume you figured this out but future seekers of the WTF are they actually doing here.

[@warnacokelat]

What is your thought if I change the fan to intake instead of exhaust?

[@overtekltd2212]

With a stock fan, give it a go

[@warnacokelat]

@@overtekltd2212 I actually bought a modded 7660B off taobao from a reputable seller and it comes with intake fan (I only expect them to trim off the excess cables). And they don't connect the fan to the 2 pin connector, but somewhere else inside. I'll open up the power supply once the warranty expire.

[@overtekltd2212]

@@warnacokelat yeah, I have seen the inside of that. It's soldered onto the 12V output of the PSU. So it runs 100% all the time. My last video is a solder link where it bypasses the fan controller to put out 12vdc to the fan header all the time. Same result a little easier

[@G.AngHWBG]

Noctua don't have black 40mm fan on their website?!

[@overtekltd2212]

Arghh we've been rumbled guvnor. No more making nock off ones from recycled bits of old trainers and burnt out motors. No not really, we'd be infringing so many trade marks and patents we'd be shooting ourselves in the foot. Its just something that's not publicly available and is more for OEMs. You can always try contacting Noctua directly yourself or we might even sell you one if you fancy. Also, just for you, as you seem like a fan fan, check out the dull video we just released of fans for fans coming out a box of fans. Enjoy x

[@overtekltd2212]

kzbin.info/www/bejne/mH2vhpKAhL2XjMU

[@angelakhtar5754]

​@@overtekltd2212 is there any downside to charging to noctua fan? is the rpm enough considering for gaming use?

[@overtekltd2212]

@@angelakhtar5754 What GPU and CPU combo are you considering?

[@angelakhtar5754]

@@overtekltd2212 amd ryzen 5600g with asus nvidia 3060 ti mini

[@AutodidactEngineer]

Do they make a 1000w+ model of these?

[@overtekltd2212]

No, Its at the design limit in the form factor for multi rail output. Increasing the PSU length can mean slightly higher power for multi rail and there is an 850W but 220mm length in the market. We do carry some 2000W enhance platinum PSU, but in a standard ATX size form factor. ATX-3920GB. Also in the market in some places under the coolermaster brand as M2000.

[@AutodidactEngineer]

@@overtekltd2212 Hmm, I see. I think I will go for an HP1200W unit even though it only outputs 12v! I've been told that by going overkill in terms of wattage even extremely loud PSUs(HP1200w) can be relatively quiet if the load is

[@overtekltd2212]

@@AutodidactEngineer Ahh yes, that unit. Mainly used for mining. Think we still have stock of 1pcs that's unused from server build swap outs. Single rail output is in flex atx terms the only way to get higher power in 150mm length flex ATX. Just us a 4020 fan if your going down that line and add some shrouding for the gap fill

[@AutodidactEngineer]

@@overtekltd2212 🤔Interesting, maybe if I set it up in such a way (two 40x20mm in push pull, it one in the PSU and one in the case else where) there won't be a need for the loud 40x28mm fan. This info is invaluable! Thanks again.

[@overtekltd2212]

@@AutodidactEngineer Yes you could do that. What is it that you're looking to power?

[@Cooper3312000]

Someday Noctua will eventually make black 40mm fans.

[@overtekltd2212]

Lol, you mean someday they will make them retail as well and not just integrator only x