Under guidelines by AMD that we could show Threadripper CPU installation and cooler installation, we figured it’d also be pertinent to show cooler coverage on TR and RAM clearance. These all fall under the “installation” bucket and normally wouldn’t get attention from us, but Threadripper’s uniquely sized socket with uniquely positioned dies demands more instruction.
Threadripper thermal compound & coldplate coverage has been a primary topic of discussion since we first showed motherboards at Computex. We’ve generally offered that, theoretically, coldplate coverage should be “fine” as long as the two Threadripper CPU dies are adequately covered by the coldplate. In order to determine once and for all whether Asetek coolers will cover the IHS appropriately, seeing as that’s what TR ships with, we mapped out the dies on one of our samples, then compared that to CLC thermal paste silk screens, coldplates, and applied thermal compound.
We can’t get all the way down to the inner workings of the pump on this one, unfortunately, as all of our source images for the Vega: Frontier Edition – Watercooled card are from a reader. The reader was kind enough to remove the shroud from their new WC version of Vega: FE so that we could get an understanding of the basics, leading us to the conclusion that AMD has built one of the most expensive pre-built liquid cooling solutions for a graphics card.
The video tear-down goes into detail on the images we received, but we’ll revisit most of it here. The card uses the same base PCB, same VRM, same GPU/HBM layout and positioning, and same everything as the air-cooled card. The difference is entirely in the cooling solution, where the Delta VRM fan goes away and is replaced with an additional reservoir (more on that in a moment), while the GPU/VRM cooling is handled by liquid plates and a pump. The die-case finstack atop the I/O is also now gone, and the baseplate is simplified to an aluminum plate with no protrusions.
Liquid-cooling the AMD Vega: Frontier Edition card has proven an educational experience for us, yielding new information about power leakage and solidifying beliefs of a power wall. We also learned that overclocking without thermal barriers (or thermal-induced power barriers) grants significant performance uplift in some scenarios, including gaming and production, though is done at the cost of ~33A from the PSU over 12V PSU power.
Our results for the AMD Vega: Frontier Edition liquid-cooling hybrid mod are in, and this review covers the overclocking scalability, power limits, thermal change, and more.
The Hybrid mod was detailed in build log form over in part 1 of the endeavor. This mod wasn’t as straight-forward as most, seeing as we didn’t have any 64x64mm brackets for securing the liquid cooler to the card. Drilling through an Intel mounting plate for an Asetek cooler, we were ultimately able to get an Asetek 570LC onto the card, which we later equipped with a Gentle Typhoon 120mm fan. VRM FET cooling was handled by aluminum finstacks secured by thermal adhesive, cooled with 1-2x Corsair ML120 fans. That said, this VRM cooling solution also wasn’t necessary – we could have operated with just the fans, and did at one point operate with just the heatsinks (and indirect airflow).
Continuing our Coverage of Computex 2017, we met with the Be Quiet! team at their booth to discuss some of their new and upcoming products. We took a look at their Silent Loop CLC CPU cooler, the new SFX-L PSU, the Shadow Rock TF2 air cooler, and the limited edition Dark Base Pro 900 - White Edition case.
The Dark Base Pro 900 was a case we covered last year at Computex, if it feels familiar. This year, Be Quiet! displayed their new iteration of the Dark Base Pro 900 - now in white. The White Edition uses the exact same tooling as the Dark Base Pro 900, with changes entirely cosmetic. Be Quiet! reps noted that the color-matching process was the most time consuming, and that the run will be limited at first to gauge market reception. The first all white case from Be Quiet! will be limited to 2000 units worldwide, with a specific number being given to each enclosure (a nameplate in the top-right corner, near the drive cages). The White Edition will ship with an included three 140mm Silent wings 3 fans in black, contrasting the white (we’re not sure if we like that just yet), and hosts all the usual features of the DBP900. The chassis is capable of hosting three 140mm fans at the front, another three 140mm fans on top, a single 140mm at the rear for exhaust, and another single 140mm fan at the bottom, near the PSU; that brings it up to eight possible fans in total.
When we made our “how air coolers work” video, a lot of viewers were interested in the inner workings of copper heatpipes and their various means of facilitating capillary action. Today, we’re revisiting our TLDR series with a video on how closed-loop liquid coolers work. We’ll be talking about permeation, air pockets, stators, impellers, coldplates, and chemical composition of the coolant.
This content has custom-made animations that we rendered specifically for explanation of how CLCs work. GN’s Andrew Coleman modeled and animated a closed-loop cooler for the piece, referencing NZXT’s Kraken X52. Because of the level of detail and custom animations of this content, NZXT sponsored GN to put this piece together. The content applies to all liquid coolers, but particularly focuses on closed-loop products; all concepts herein can be applied to CLCs across the industry from various suppliers and manufacturers. Our technical deep-dive for today serves as a means to fully detail liquid cooling and how it works, drilling down to piano-wire granularity (literally).
With days to go before we fly out to Taipei, Taiwan for this year's Computex show, EVGA's new 1080 Ti SC2 Hybrid card arrived for tear-down and analysis. We might not have time to get the review dialed-in on this one before the show, but we figured the least we could do is our inaugural disassembly of the card.
EVGA's 1080 Ti SC2 Hybrid makes a few changes over previous Hybrid cards, as it seems the liquid+air amalgams have grown in popularity over the past few generations. Immediately of note, the shroud now carries some 'tessellation' paint embellishments, an illuminated name plate, and a cable tether for the radiator fan. Small increments.
Fractal’s Celsius S36 debuts alongside the company’s S24, coolers sized at 360mm and 240mm, respectively. The Celsius series uses an Asetek Gen5 pump, identical to the pump found on the EVGA CLC, NZXT X42/52/62, and Corsair H115i/H100iV2 coolers. This is a semi-custom Asetek solution that’s been loosely customized by Fractal Design, primarily focusing on the addition of G1/4” fittings (rad-side only), on-pump speed tuning, and an on-rad fan hub. It’s not as customized as, say, the NZXT Kraken series, but NZXT’s products also run more expensive. Fractal is looking at a launch price of $120 for the S36 that we’re reviewing today, and $110 for the S24.
Our focuses are on thermals and noise – not that you can focus on much else when talking coolers – with some new testing that looks at normalized noise output. We debuted this testing in our ASUS ROG Strix review and have carried it over to coolers.
Fractal’s coolers use 120mm fans that run a maximum RPM nearing 2000, with variable pump RPM from ~2000~3000. In our testing, though, it seemed a little simpler than that – pump RPM is based on liquid temp, and as we found in our 7700K review (the hottest CPU we've tested), liquid temp never really exceeds 30C. Given Fractal's curve, that means the pump stays at 2000RPM almost all the time. Rather than use software or suggest straight BIOS control – which we prefer – Fractal’s gone with a toggleable pump plate that switches into auto or PWM options. We’ve tested variable pump speeds in the past and haven’t found major differences in cooling efficacy, which is more heavily relegated to the fan spec and radiator size than anything else. This is more of a noise impact. We tested using the default, out-of-box “auto” setting, which kept our pump RPM fixed nearly perfectly at ~1960 throughout the tests (liquid temperature doesn't ramp up enough to push higher).
Fan speeds were manually controlled for the tests, though users could connect the fans to the on-rad hub. More on this in the conclusion.
Let’s get on with the testing, then run through the accessories and conclusion.
Our Titan Xp Hybrid mod is done, soon to be shipped back to its owner in its new condition. Liquid cooling mods in the past have served as a means to better understand where a GPU could perform given a good cooler, and are often conducted on cards with reference coolers. The Titan Xp won’t have AIB partner cooler models, and so building a Hybrid card gives us a glimpse into what could have been.
In today’s benchmarks and conclusion of the Titan Xp Hybrid mod, we’ll cover thermals and noise levels extensively, overclocking, and throw in some gaming benchmarks.
We just posted our second part of the Titan Xp Hybrid mod, detailing the build-up process for adding CLCs to the Titan Xp. The process is identical to the one we detailed for the GTX 1080 Ti FE card, since the PCB is effectively equal between the two devices.
For this build, we added thermocouples to the VRAM and VRM components to try and determine if Hybrid mods help or hurt VRAM temperatures (and, with that part of testing done, we have some interesting results). Final testing and benchmarking is being run now, with plans to publish by Monday.
In the meantime, check out part 2 below:
We’ve been one of the most active in modding newly-launched GPUs with “hybrid” cooling solutions, and even recently began running thermal tests on VRM components alongside said mods. Before we ever did hybrid mods, NZXT launched its G10 bracket – back in 2013 – to tremendous success and adoption. That adoption died off over time, mostly due to new GPU launches that weren’t clear on compatibility, and NZXT eventually was met by competition from Corsair’s HG10.
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