Static pressure vs. airflow, part 1/3: Quantities under control

Fan marketing materials could not do without the use (or is it misuse?) of key variables. There are plenty of them everywhere, but no one anywhere explains the nature of how they work, always just the supposed consequence. After all, for expected sales, companies need you to understand their presentations, which often contradict the laws of physics. But we will take a look at them, in all simplicity. Read more “Static pressure vs. airflow, part 1/3: Quantities under control” »

Gelid Zodiac fan: ARGB LED and excellent price/performance ratio

Aside from whether the fan is named after the zodiac or a serial killer from California, we know all about Gelid’s latest fan. In the end, the inspiration may stem from the latter as well. After all, it has a backlight option and at the same time “kills”, performance-wise, the price-equivalent fans without it. And attractive models at that. But there is one thing that can erase all the good features. Read more “Gelid Zodiac fan: ARGB LED and excellent price/performance ratio” »

A matter of (dis)honesty: expensive NZXT paste with only 6.3 W/mk?

NZXT has released its first thermal paste and looking at its parameters opens the topic of what quality the manufacturers present us on paper. However, NXZT is probably not pretentious, on the contrary, the paper thermal conductivity of their thermal paste is surprisingly low considering the price. Is this the reality, are other manufacturers (with two to three times higher thermal conductivity values) misleading or is NZXT thermal paste uncompetitive? Read more “A matter of (dis)honesty: expensive NZXT paste with only 6.3 W/mk?” »

Dynamic X2 GP-12 PWM: Fractal Design knows what works in cases

Sometimes they don’t even get a chance and are immediately replaced by other, “better” ones. We’re talking about fans that come pre-installed in computer cases. We are going to test one of them now and although there are reasons to replace the Dynamic X2 GP-12 (PWM), be careful not to end up being worse off. After all, these aren’t exactly ordinary fans. They even have more specific aerodynamics and acoustics modifying features. Read more “Dynamic X2 GP-12 PWM: Fractal Design knows what works in cases” »

Summer looks exciting, BeQuiet! prepares the Silent Wings (Pro) 4

The fourth generation of the new BeQuiet! Silent Wings fans have all the ingredients to reach the very pinnacle of efficiency. The rotor is based on the proven shape of long, distinctively curved blades. These are, moreover, very close to the frame to maximize pressure. After this parameter, you probably already think of Noctua’s “sterrox” fan, which, however, the BeQuiet! one can surpass with its typical grooves. Read more “Summer looks exciting, BeQuiet! prepares the Silent Wings (Pro) 4” »

BeQuiet! Pure Wings 2 (BL039): It wouldn’t do without the grooves

So, now we get to see what the grooves on the entire surface of the blades, which are typical of BeQuiet fans, are worth! Judging by the geometry, we were initially concerned that the results might go in a similar direction to the Arctic BioniX F120. But it’s a lot better than that, and the 120 mm Pure Wings 2 even achieves a top price/performance ratio while running very quietly. The best of the fans tested so far. Read more “BeQuiet! Pure Wings 2 (BL039): It wouldn’t do without the grooves” »

ASRock B660 Steel Legend or the cheapest motherboard in tests

The low price of a motherboard brings with it a few unconventional limitations. Ones that are not often found in competing models for similar money. Some of these are of the safety variety to avoid unnecessary damage to critical components. For a customer buying a standard, reasonably set-up build in this price class, they won’t be a bother, and saving money with the B660 Steel Legend can be beneficial. Read more “ASRock B660 Steel Legend or the cheapest motherboard in tests” »

Alphacool: Our new thermal paste is faster than stainless steel

Watch out, Alphacool has started aiming pretty high. In the specifications for the latest Apex thermal paste, it lists a thermal conductivity that it claims is not only above the best competing thermal pastes, but even outperforms some metals. Unless Alphacool is stretching reality, this is going to be an extremely effective formula. You won’t guess what its main ingredient is. Read more “Alphacool: Our new thermal paste is faster than stainless steel” »

Low profile in a larger, 140 mm body. Arctic’s P14 Slim

As the cross section of fans increases, the thickness usually grows. For cases where the opposite is desired, i.e. a large yet thin fan, Arctic has “squeezed” the P14 down to 16mm. This is one of the few fans with such proportions and this one has ambitions to be a cut above the rest of the range. Compared to the one number smaller P12 Slim model, the increase in airflow at the same noise level should be almost 24 %. Read more “Low profile in a larger, 140 mm body. Arctic’s P14 Slim” »

Gigabyte Aorus 120 ARGB: Not just stylish, but a proper fan

Gigabyte’s new fan stands out from the crowd of flashy, inefficient PC components. The Aorus 120 ARGB may entice the user with its illuminated rotor, but the features that make a fan a fan don’t play second fiddle either. Although there is still room for tuning and improvement, the Aorus 120 ARGB excels in many ways and beats even competing models from traditional fan manufacturers in some areas of application. Read more “Gigabyte Aorus 120 ARGB: Not just stylish, but a proper fan” »

One Mini-ITX board is not enough. Biostar released the B660T-Silver

Biostar is building its motherboard lineup gradually. Most of the models for the Intel LGA 1700 platform arrived at once, with the ending of the embargo, but since then some have been added “solo”. Relatively recently it was a Micro ATX-format board from the Silver series (B660M-Silver), now it’s the B660T-Silver for even smaller desktops with a square PCB with a 170 mm side (Mini-ITX form factor). Read more “One Mini-ITX board is not enough. Biostar released the B660T-Silver” »

Format it, press it. BeQuiet! showcased CPU cooler production

I’m sure many of you have a good idea of how CPU coolers are made, but it’s still worth seeing exactly how it’s done. At least when it comes to BeQuiet! coolers. This German company has released materials on how their coolers are made in their factories. Specifically, how the sheet metal plates are turned into fins with the desired shapes and how they are then connected to heatpipes. Read more “Format it, press it. BeQuiet! showcased CPU cooler production” »

Otherness everywhere you look – Biostar B660GTA (review)

Most motherboards from the same classes look pretty much the same. While they differ in color scheme and heatsink shape, the layout, features, and overall operation (including power management) are like a carbon copy. The Biostar B660GTA goes upstream in many ways and presents an attractive option for those users who always find something lacking on boards in this price range. Read more “Otherness everywhere you look – Biostar B660GTA (review)” »

SilentiumPC Spartan 5 Max: Extra heatpipes for CPUs over 130 W

The SilentiumPC Spartan 5 cooler with the “Max” attribute differs from, say, the basic variant only by having twice as many heatpipes. So four instead of two. The other elements are the same, so naturally the question comes to how much the two added heatpipes, which the more expensive SPC cooler has in addition, will increase the cooling efficiency. By quite a bit, or by nothing at all – depending on the processor used. Read more “SilentiumPC Spartan 5 Max: Extra heatpipes for CPUs over 130 W” »

Better than on paper. Low-cost “OC” mobo MSI Pro Z690-A DDR4

MSI’s second cheapest motherboard with the Intel Z690 chipset costs significantly less compared to the higher-end Tomahawk DDR4. The difference in features is small. And perhaps too small, as the specifications artificially downgrade some components. The power delivery is less efficient and the heatsinks are more modest, but the roughly 80 EUR saved is almost as much as the cost of upgrading from a Core i5-12600K to a Core i7-12700K(F). Read more “Better than on paper. Low-cost “OC” mobo MSI Pro Z690-A DDR4″ »

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