What we've started to do at Corsair is carefully vet our manufacturer of transformers to not only meet performance criteria, but also to meet the criteria we know will give our customers zero noise in their power supply. PLUS Gold-Certified: Steady power output at up to 90% efficiency, and Cybenetics Platinum certified for lower power consumption, less noise, and cooler temperatures.

This unit is an active PFC + half bridge LLC resonance and synchronous rectification + DC-DC design. The design implements independent PCBs for the DC-DC modules and synchronous rectification. The level one EMI adopts independent PCB design. This is equipped with a pair of Y capacitors and two X capacitors with a common mode inductor. The primary PCB contents the second level EMI circuit including a common mode inductor and a single X capacitor and a pair of Y capacitors. An MOV and NTC are also present. An independent relay is seen between the primary cap and the PFC circuit. Today to test the Power Supply we have taken it into our acoustics room environment and have set our SkyTronic DSL 2 Digital Sound Level Meter (6-130dBa) one meter away from the unit. We have no other fans running so we can effectively measure just the noise from the unit itself. The primary stage has a single Taiwanese 105c rated Elite Jinshan cap. These caps are pretty good, even if they fall a bit short of the highest grade caps from Japanese brands such as Nippon Chemi Con or Rubycon. Intel® ATX 3.0 Certified: Compliant with the ATX 3.0 power standard, supporting the PCIe Gen 5 platform and resisting transient power spikes.The efficiency results are excellent, peaking at 92.6% at close to 55% load. This drops to just under 90% efficiency at full load. These are really very positive results for an 80 Plus Gold rated unit. The rear of the box highlights some key features, including the zero RPM mode, low noise characteristics. As expected, the cables supplied with the 1000W unit should cover any building requirements for the majority of users, including a PCIe 5.0/12VHPWR connector. The cables are long enough for even the biggest cases available on the market today.

The load regulation of this power supply is solid throughout, with only minor dip on the +12V rail. Corsair RM1000e Some power supplies exhibit noises that come from components other than the intake fan. These noises can sound like hissing, buzzing or a high pitched whine. These noises can come and go and can be difficult to troubleshot for a couple of reasons. One reason is that the noise can change, or be completely absent, depending on the load on the power supply. I'll get into more detail about that in a little bit, but what this does mean is that a PSU that makes a noise in one PC during one game or benchmark program may not make the same noise in another... or may make no noise at all. The other reason is that often these noises can be at such a high frequency that only some people are actually able to hear them. Many people, especially those over 25 years of age, cannot hear noises over 15kHz, while others can hear noises all of the way up to 20kHz. So you can have a PC sitting in a room, with a power supply that's making a high pitched squealing noise, and if two people are sitting in the same room; one of them may be able to hear the noise while the other one hears nothing at all. The RMe series is more affordable than the RMx line, offering in its newest revision ATX v3.0 and PCIe 5.0 compatibility. The RM1000e uses an efficient platform and it also has a silent operation. Performance wise, don’t expect it to be close to the RMx line, because this would create internal competition.

ATX 3.0 CERTIFIED

The transformer on the left is measuring a diameter of 32.8mm, which is good. But the one on the right is measuring 34.08mm despite the same length of copper wire is wound around the core. This means the windings are not as tight as they could be, the transformer could potentially make a noise, and is therefore rejected.

Aluminum electrolytic capacitors, the caps that look like little cans, are rolled up with an electrolyte soaked paper. That paper can actually absorb the mechanical resonance that can create noise. But the capacitors shown above use a metalized polypropylene as a dielectric. This "plastic film" can vibrate with certain frequencies, just like our copper windings on our coils and transformers, and produce a high pitched noise. Supports Modern Standby sleep mode for extremely fast wake-from-sleep times and better low-load efficiency. Next we want to try Cross Loading. This basically means loads which are not balanced. If a PC for instance needs 500W on the +12V outputs but something like 30W via the combined 3.3V and +5V outputs then the voltage regulation can fluctuate badly. Cross Load Testing The Corsair RM1000e 2023 chassis is colour neutral and suited for any system themed build you might have in mind.We've found that, under certain circumstances, these types of capacitors can make more noise than any others. Why? Klarna Bank AB (publ) is Authorised by the Swedish Financial Services Authority (Finansinspektionen) and is subject to limited regulation by the Financial Conduct Authority. Seven-Year Warranty: Your guarantee of reliable operation for peace of mind through multiple builds.

The Corsair RM1000e handled our cross load test very well, holding stable results across the range.Another source of so-called "coil whine" is actually from capacitors. While many people think that a capacitor that's making noise is a leaking capacitor, the truth is that a capacitor can make a noise similar to "coil whine" for the same reason a coil or transformer will make these noises. The inside of a capacitor is made up of a dielectric material and a metallic film. These two thin layers are rolled up to form the capacitor. Once again, tolerances are important. If there is any non-uniformity in the coil of two layers, a mechanical resonance can occur that produces a high pitched noise.