Corsair’s H100i Pro is the third Corsair product to use Asetek’s 6th Generation pump solution. Asetek didn’t push performance in significant ways with 6th Gen, but instead focused on endurance improvement and reducing hotspots that encourage permeation of the tubes. This time, just to keep things sort of interesting, we’ll talk about how pump speed impacts the performance of this particular cooler – a topic we’ve explored with Gen5 coolers in the past.

We originally detailed Gen6 in this H150i Pro review, if you’re a bit behind. On the whole, Asetek’s sixth generation pump isn’t all that different from its Gen5 pumps. Performance is marginally worse, if anything, as almost all changes were focused on slimming down the CPU block and improving endurance. Asetek looked at key hotspots in its Gen5 pumps and rerouted flow to reduce strain and failure potential. Liquid should still remain below 60C at all times, but Gen6 will now better enable this than Gen5. Don’t expect better performance, though. Despite improving the impeller quality significantly, overall performance remains unchanged at best, if not slightly worse.

Frequency is the most advertised spec of RAM. As anyone who’s dug a little deeper knows, memory performance depends on timings as well--and not just the primary ones. We found this out the hard way while doing comparative testing for an article on extremely high frequency memory which refused to stabilize. We shelved that article indefinitely, but due to reader interest (thanks, John), we decided to explore memory subtimings in greater depth.

This content hopes to define memory timings and demystify the primary timings, including CAS (CL), tRAS, tRP, tRAS, and tRCD. As we define primary memory timings, we’ll also demonstrate how some memory ratios work (and how they sometimes can operate out of ratio), and how much tertiary and secondary timings (like tRFC) can impact performance. Our goal is to revisit this topic with a secondary and tertiary timings deep-dive, similar to this one.

We got information and advice from several memory and motherboard manufacturers in the course of our research, and we were warned multiple times about the difficulty of tackling this subject. On the one hand, it’s easy to get lost in minutiae, and on the other it’s easy to summarize things incorrectly. As ASUS told us, “you need to take your time on this one.” This is a general introduction, to be followed by another article with more detail on secondary and tertiary timings.

The review embargo on Corsair’s new Crystal 280X micro-ATX case lifted during Computex, possibly the busiest week of the year--but since we’ve just started testing small form factor cases, we chose to push back the review another week or two.

The 280X is fairly large to call itself small form factor, and that can be an unfair advantage when comparing performance against truly small mini-ITX cases like the SG13. One justification is that (unlike the Cryorig Taku), the 280X uses its extra room to supports full-size components except for the motherboard, which must be either micro ATX or mini ITX.

Corsair’s H115i Pro launched alongside the H150i Pro, the first two closed-loop liquid coolers to use the Asetek 6th-Gen pump. As we said in the H150i Pro review, Asetek didn’t do Corsair any favors, here – the new pump isn’t much different from the old one, and primarily focuses on RGB implementations akin to NZXT’s custom work on the XX2 series. Regardless, Corsair has taken this and used it as an opportunity to bundle their new CLCs with silence-focused fans, the ML120 Pro fans.

As shown in our tear-down of the 6th Gen Asetek pump, where we took apart the H150i Pro, the primary changes of the pump are endurance-focused, not performance-focused. Asetek is ultimately the supplier, here, and that means Corsair’s main contributions are restricted to fan choice; that said, Corsair did dictate large parts of the 6th Generation design. Asetek now includes an RGB LED kit for manufacturers, and also includes the PCB for programmable LEDs (something that NZXT previously went through great effort to customize on the 5th generation). The 6th Gen Corsair coldplate is also marginally smaller than the fifth generation, but other than that, it’s all endurance-driven. Asetek has changed its impeller to a metal option, similar to the old Dynatron impellers in the Antec 1250 Kuhler series. Asetek has also reportedly “optimized” their liquid paths to reduce hotspots that caused higher permeation than desired in older generations.

In terms of performance, though, our extensive testing results (and our contacts) all indicate that the 6th Generation is not an improvement in cooling. At best, they’re the same. And that’s at best.

The Corsair 270R won our Editor’s Choice award when we reviewed it back in 2016. The 570X was the main event in that article, but we also praised the 270R as a decent case with a launch price in the $60-$70 range--and we’ve continued to mention it favorably, since it’s gone on sale for as low as $50. Now the 275R is here, Corsair’s new and slightly fancier version with the option of a tempered glass side panel.

The Corsair 275R case ships in two varieties: $80 with tempered glass or $70 for acrylic -- at which point the latter is essentially a 270R. The 275R is a refresh, then, and prioritizes tempered glass, a longer PSU shroud that doesn’t abruptly terminate, and rubber grommets. As it differs from the 270R, that would more or less recap the 275R. As its name openly indicates, this is a half-step to something new.

The Obsidian Series 500D is a new glass and aluminum enclosure from Corsair that we showed at CES, noting primarily that it took no risks, but was OK overall. The case takes a lot of known-good concepts and merges them in a single enclosure. It’s a safe play -- but safe plays are sometimes the best ones.

The chassis of the 500D is only slightly modified from the 570X, a case that we reviewed highly and gave a Quality Build award back in 2016. That doesn’t give it a free pass--the exterior panels are often what make or break the performance of a case, as we’ll discuss further in the thermal section. As for looks, though, Corsair has successfully adapted old tooling to a new model without obvious compromises, other than some cutouts around the edges that were clearly intended for steel side panels--but those aren’t visible with the case closed.

At CES 2018, Corsair announced its new K63 wireless gaming keyboard and Dark Core gaming mouse, both of which are slated to battle Logitech in the wireless peripheral arena. Corsair is targeting low latency, moderate battery-life configurations in a TKL Cherry MX Red keyboard, with the mouse using a Pixart 3367 modified optical sensor.

When asked for clarification on the latency figures given – always “1ms” – Corsair told GamersNexus that the 1ms number cites the spec for transmission latency on the wireless signal, not click-to-response latency. We should have the latter eventually, but not today. The mouse is built with two variants, at $80 and $90, with the more expensive model branded the “SE,” and capable of wireless Qi charging. On a “Qi spot,” as they call it.

Yes, really.

From the show floor of CES, we’re posting our review of Corsair’s new 6th Generation Asetek coolers, including the H150i Pro, a 360mm closed-loop liquid cooling solution. The H150i Pro launched at $170, accompanied by the H115i Pro, a $140 280mm liquid cooler. Both use the new 6th generation of Asetek cooling, which Corsair debuted at Computex 2017. No other company has yet shown or hinted at Gen6 products, marking this the first for Asetek’s new coolers.

In large part, as you’ll see in testing, the coolers aren’t heavily modified in the cooling department – most the changes are to better accommodate RGB LEDs and Gen4-style side-mount tubing. Corsair also specified a smaller coldplate for the Gen6 H150i and H115i Pro CLCs, marking the first coldplate change by Asetek in years. In terms of the pump assembly, that functions mostly the same as it always has – though we’ll do a tear-down after CES.

As for Corsair’s part, that’s largely comprised of changes requested of Asetek (coldplate size, PCB changes), with the rest of the changes being the inclusion of ML-series fans. The magnetic levitation fans used come in 2x 140 (H115i) and 3x 120 (H150i) variants, and are silence-focused, not outright performance-focused. This shifts review discussion to focus more on acoustic performance and noise-normalized performance. Speaking of, Corsair has included a 0RPM mode for its new CLCs, meaning that sub-45C liquid temperatures can be accompanied by 0RPM fan speeds – silence, in other words. At least, silence aside from the pump, which makes an audible pump whine and chirping noise during high-speed operation. The pump can me slowed down (1100RPM), at which point it does genuinely become inaudible – but not under its higher speed (~2800RPM) conditions. Granted, the use cases for each are clear: Silence or performance – pick one, not both.

This week's hardware news recap diverges from Titan V coverage and returns to some normalcy, sort of, except the joining of Corsair by former top EK executives. We also have some loose confirmation of Ryzen+ for 1Q18, MSI's new RX Vega 64 Air Turbo card, and Sapphire's Nitro+ Vega 64 card. Still lots of AMD news, it seems, though Intel popped-up with Gemini Lake, if briefly.

Find the show notes below, or the video embedded:

We’ve been staying on top of sales round-ups lately, and noticed that several of our choices in our Best Cases of 2017 content are now on sale. This includes the Meshify C, Define C, Corsair 570X & 270R, Thermaltake View 71 & P5, and a couple of NZXT and Rosewill cases.

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