 Okay, okay, I know what you're thinking water plus a high amperage Transformer that can literally blow up and take the rest of your computer hardware with it What could go wrong? Good idea or bad idea? It's here and our goal today is to find out if the usual benefits of liquid cooling quieter cooler operation can also apply to a power supply and We wouldn't be able to do it without TunnelBear TunnelBear makes it easy to privately and securely browse a more open internet Try TunnelBear for free at TunnelBear.com slash LTT So the first thing that caught our attention about this product Aside from it being a water-cooled power supply was the standard G1 quarter openings complete with bits power logo Under the modular power connectors if they were trying to do a quality job. They definitely found a solid partner So let's keep going then The internals do still have a fan making this a hybrid design similar to Asus' Poseidon series of graphics cards But at the bottom of the main PCB there is also what appears to be a full-length water block It doesn't seem to have any fins, but it does have a water block It doesn't seem to have any fins, but it does have a flow meter Interesting Now the NDA that we signed prevents us from tearing down our unit to show you exactly what that plate makes contact with But everything we can see from peering inside suggests that the internal heatsink array is pretty typical of a normal air-cooled power supply And nothing on the fan side suggested that special design considerations had been made to accommodate transferring the heat to the water block So maybe the top mounted heatsinks run all the way through the PCB holes to the base of the block Or maybe there's just a big thick thermal pad on the bottom of a completely normal power supply We actually don't know But none of this prevents us from answering our original question anyway, so let's move on To find out if cooler and quieter can be achieved through FSP's method, whatever it is We tested our unit in both air and liquid-cooled mode and also compared it to one of the best air-cooled power supplies on the market The Corsair AX1200i We ran each of them at idle, 2 thirds load, and max capacity, taking both thermal and acoustic measurements Now, one does not simply make a system consume 1200 watts of power without some seriously overkill hardware So to achieve that, we rigged up an X299 platform with the 16-core Core i9-7960X overclocked to 4.2 GHz Then we threw four overclocked Titan X Pascals onto the rig for some GP GPU rendering And ah, beautiful! Just over 1400 watts from the wall So with some CPU voltage adjustments, we got our system dialed in to about 1200 watts We then used cable mod extenders to be able to have the power supply in a separate room in order to control sound leakage First up then, our air-cooled testing At idle, both units remained silent, neither of their fans turned on Nothing to see here At 2 thirds load, the FSP fan spun up to about 800 RPM, and our thermal imagery showed hotspots inside the unit at over 77 degrees Celsius Our XTAC sound meter read 44 decibels, and I'd say subjectively it was about as loud as a D5 pump at 12 volts By comparison, our Corsair AXI reached only 700 RPM and was ever so slightly quieter At full 1200 watt load, the fan spun up all the way to about 1200 RPM, reaching 50 decibels And it was definitely audible over our 12 volt D5 pump, making it the worst offender in a hypothetical system being pushed to the limits We saw two significant hotspots with our thermal camera, and we even experienced some strange clicking and crackling noises For comparison, our Corsair hit only 950 RPM at 46 decibels, making it significantly less noticeable over a D5 Not to mention that there was no crackling, but it was noticeable over a D5 So maybe there is some improvement to be had from water cooling And besides, this, the Hydro PTM Plus 1200 watt, was never meant to be air-cooled So let's throw this fish back in its natural habitat With a 240 millimeter liquid cooler hooked up, we started with this power supply at 2 thirds load and... Oh, well that's kind of weird The fan turned on! It did spin at a slightly lower RPM than when it was air-cooled, but while our noise measurements did go down We actually didn't find that it made a noticeable difference compared to all air That midpoint heat spot was gone though At full bore, the fan spun up to 900-ish RPM, quite a bit lower than when it was air-cooled But it was still audible over a D5 with pretty much the same heat spots on the fan side So what happened here? Well, without being able to take the unit apart to confirm our... The block is only cooling the backside of the PCB theory, it remains just that, a theory But one that is somewhat corroborated by these renders that we found on FSP's website To be clear, we did observe an improvement And it is possible that a liquid-cooled power supply could achieve better cooling and noise characteristics than an equivalent air-cooled one But the implementation on this one did leave a bit to be desired We had really hoped that the fan wouldn't be needed at all as long as the water cooling didn't fail So I would like to see a second attempt at this concept But maybe one that is more tightly integrated with the water block actually directly making contact with the heat producing parts of the power supply Maybe then FSP would be onto something As it stands, at the time of filming we actually don't know the price of this unit But we don't think it really matters anyway However much it is, we really don't see the point of paying extra for it over another high quality, high wattage power supply Unless you just must have everything in your system liquid-cooled For like, ultimo bragging rights Speaking of ultimo bragging rights You can brag about your Squarespace website when you create it in just a matter of like, I mean anything from minutes to Actually you can spend a long time on a Squarespace site But the point is, no matter how much time you spend on it, it's gonna look great They've got 24-7 support via live chat and email if you're having trouble It starts at only 12 bucks a month and you get a free domain for the year if you buy Squarespace And this is cool, cover pages on the subject of having something up in just minutes Allows you to set up a beautiful one-page online presence in minutes And they've got tons of great features They've got responsive design so your website will look great on any device They've got their logo creator They allow you to publish in Apple News format So millions of potential readers can see your Squarespace blog So start a trial with no credit card required and start building your website today Then, when you sign up for good, head over to squarespace.com slash LTT And use offer code LTT to get 10% off your first purchase We'll have that linked below So thanks for watching guys, if this video sucked you know what to do But if it's awesome, hit the like button, get subscribed Maybe consider checking out where to buy the stuff we featured at the link in the video description As well as our merch tour and our community forum We have many links in our description, we have the best links