Category: PSUs

Even a Temperature Sensor Failed to Prevent 12V-2×6 Cable Melting

Graphics, PSUs, News | | Jan Olšan

The new 12VHPWR—later renamed to 12V-2×6— power connector is plagued with persistent reliability issues involving random overheating, melting, and even burning ever since Nvidia graphics cards adopted it. Since then, every conceivable company—that notably not including Nvidia itself—has been trying out various workarounds. However, it seems that the connector’s tendency to fail is so consistent that even thermal protection cannot stop it. Read more “Even a Temperature Sensor Failed to Prevent 12V-2×6 Cable Melting” »

ASRock at Computex: 3200W PSU, unique AIOs and LCP fans

CPU coolers, Fans, Motherboards, PSUs | | Jan Olšan

One company out of the big four has been missing from our coverage of Computex 2026: ASRock. This year’s Computex 2026 is tied to an anniversary for ASRock as well, as the company is celebrating the 10 years of its Taichi hardware lineup. The occasion is being marked with new hardware too: ASRock has unveiled new motherboards, graphics cards, power supplies with protection against cable melting, as well as coolers and fans. Read more “ASRock at Computex: 3200W PSU, unique AIOs and LCP fans” »

ATX12VO v3: Better ATX PSU successor, but with melting cable risk?

Motherboards, News, PSUs | | Jan Olšan

It’s been six years since Intel came up with ATX12VO PSUs as and alternative to ATX power supplies, replacing PC’s multiple voltage rails with a single 12V rail (hence the name: “12V Only”) to improve energy efficiency. So far, it hasn’t gained much traction. Intel is now introducing a new “v3” version, which brings deeper changes. They’re quite interesting and could justify a transition, but there’s also one big caveat. Read more “ATX12VO v3: Better ATX PSU successor, but with melting cable risk?” »

Asus ROG Equalizer: Robust 12+4pin connectors that don’t burn?

Graphics, PSUs | | Jan Olšan

Failures of the 12V‑2×6 power cable (formerly 12VHPWR) have become the scourge of recent GPU generations. Especially for Nvidia cards pushing this power standard, but also for a few Radeon models using these connectors. Various attempts to work around or mitigate the risks have popped up; this time, Asus is introducing the Equalizer special‑purpose cable for its power supplies, that aim to prevent connector melting in several ways. Read more “Asus ROG Equalizer: Robust 12+4pin connectors that don’t burn?” »

Zdroj MSI MPG Ai1600TS PCIE5

MSI PSUs feature GPU Safeguard+ against 12V-2×6 cable melting

Graphics, News, PSUs | | Jan Olšan

Unreliable 12V‑2×6/12VHPWR GPU power connectors have been causing trouble for years—especially on Nvidia hardware. Unfortunately, the problem remains unresolved because the company insists on pushing the connector, meaning the risk of overheating and melting cables can only be mitigated or worked around. MSI is now introducing its own attempt at such a workaround, adding a protection and early warning feature to its power supplies. Read more “MSI PSUs feature GPU Safeguard+ against 12V-2×6 cable melting” »

Endorfy Vero L6 PSUs: ATX 3.1 also in cheaper, lower end

News, PSUs | | Ľubomír Samák

Although even the Supremo series PSUs were not expensive, it is the new Vero (L6) series that truly fulfills the Endorfy philosophy of affordability. These PSUs also feature the 16-pin 12V-2×6 connector and support the latest power standard (ATX 3.1), while being relatively inexpensive. This is partly due to a relatively lower efficiency, fixed cabling, and a simpler fan—but that’s the point. Overall, these PSUs look promising. Read more “Endorfy Vero L6 PSUs: ATX 3.1 also in cheaper, lower end” »

Fractal Design Ion 3: They finally have it—an ATX 3.1 PSU

Preview, PSUs | | Ľubomír Samák

Fractal Design has finally expanded its power supply portfolio to include the latest available power standard (ATX 3.1) at the time of writing. This means graphics cards with the 16-pin 12V‑2×6 connector can be powered directly—without an adapter—and the electrical characteristics are claimed to be more attractive too. You can now examine the most powerful, 1000-watt variant, in detail. Read more “Fractal Design Ion 3: They finally have it—an ATX 3.1 PSU” »

How a power supply unit works. Dedicated to secondary schools

Analysis, PSUs | | Ľubomír Samák

In this article we cover the basic details of power supplies intended for PCs. That means the content will explain how supplies are classified by size and electrical standards, what connectors they use to power computer components, and what lies behind their operation. Why does something like a computer power supply exist—why isn’t the computer powered directly from the mains (without a PSU)? Read more “How a power supply unit works. Dedicated to secondary schools” »

BeQuiet!: (Semi)passive cooling mode for PSUs now available

CPU coolers, PC cases, PSUs | | Ľubomír Samák

BeQuiet! also enriched Computex 2025 with its presence. Lots of new things – cases, coolers and… did you know that the latest BeQuiet! power supplies now feature a passive fan mode? A feature previously unavailable in the brand’s PSUs is slowly entering the market. Users asked, users received. You can also look forward to the new Pure Loop 3 coolers, coming sooner than you think. Read more “BeQuiet!: (Semi)passive cooling mode for PSUs now available” »

Seasonic at Computex 2025: “30 mm” Fans and OptiTech

Fans, News, PSUs | | Ľubomír Samák

The term “PSUs” often first brings Seasonic to mind. They’ve been making power supplies for a long time – 50 years, in fact – and are also behind various proprietary technologies like OptiTech, which includes protections for the PSU itself (OptiSink 2.0), and OptiGuard (protecting 16-pin PCIe connectors). Seasonic is also taking its fan development seriously, boosting efficiency in part by increasing thickness – to a non-standard 30 mm. Read more “Seasonic at Computex 2025: “30 mm” Fans and OptiTech” »

Computex 2025: Endorfy? Not Just Cheaper ATX 3.1 PSUs

CPU coolers, PC cases, PSUs | | Ľubomír Samák

At Computex 2025, the team behind Endorfy showcased prototypes of new panoramic cases as well as more affordable versions of ATX 3.1 power supplies. These are still in development and expected to hit the market next year (2026). Among the items already available for purchase were coolers, some of which we’ve already tested in detail. So, let’s focus on the most important highlights from the booth. Read more “Computex 2025: Endorfy? Not Just Cheaper ATX 3.1 PSUs” »

New Supremo FM6: ATX 3.1 Power Supplies from Endorfy

News, PSUs | | Ľubomír Samák

PSUs with the ATX 3.1 standard have been missing from Endorfy’s lineup until now, but that changes today. Specifically, with two new models with rated outputs of 850 and 1000 W. These PSUs, designed for high-performance builds, are set to stand out not only for their attractive price but also for their quiet operation and high energy efficiency. Among other features, they come equipped with a 12V-2×6 cable for powering modern graphics cards. Read more “New Supremo FM6: ATX 3.1 Power Supplies from Endorfy” »

Chlazení na 12+4pinovém adaptéru EZDIY-Fab (Autor: EZDIY-Fab)

Protecting 12V-2×6: fuses, thermistors, even coolers

Graphics, News, PSUs | | Jan Olšan

Last weekend, we focused on the issue of 12VHPWR and 12V-2×6 connectors on Nvidia graphics cards, particularly what Der8auer’s findings revealed about their reliability and safety. Beyond the problems with cards like the GeForce RTX 4090 and 5090, this issue has another manifestation: while Nvidia claims the problem no longer exists, other hardware manufacturers have started coming up with their own ideas to address or prevent it. Read more “Protecting 12V-2×6: fuses, thermistors, even coolers” »

Through user’s eyes: Enermax Revolution D.F. 12 122mm (ATX) PSU

Giveaway, News, PSUs | | Editors

We are now reaching the culmination of the contest for the Enermax Revolution D.F. 12 ATX short PSUs. It is a user review, where the winner describes how he integrated this 122-millimeter PSU into his build. And he managed to do it quite nicely, what do you say? The case chosen is the Jonsbo D31 Mesh SFF case, in which every millimeter saved is a good one. Especially if it doesn’t affect anything and one could note that it is redundant. Read more “Through user’s eyes: Enermax Revolution D.F. 12 122mm (ATX) PSU” »

New Endorfy (PSU) cable: From two 8-pins to one 16-pin

News, PSUs | | Ľubomír Samák

While Endorfy still doesn’t have ATX 3.x PSUs, it is releasing a cable for powering high-performance GeForce graphics cards directly (without an adapter) even with an “older” ATX 2.xx PSU. The Supremo FM5 HPWR cable has a 12+4-pin, or a 16-pin connector on one side, and connects via two PCIe eight-pin connectors on the other side, on the PSU side. In addition to the high current carrying capacity, Endorfy also emphasized installation convenience. Read more “New Endorfy (PSU) cable: From two 8-pins to one 16-pin” »

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