Corsair RM650x (2021) power supply review - Introduction

Name: Corsair RM650x (2021) power supply review
Brand: Corsair RM650x

by Hilbert Hagedoorn on: 04/08/2021 10:07 AM [

] 26 comment(s)

Corsair RM650x (2021) Power Supply review
Revamped, stable, and armed with 10 years warranty

One of the most popular power supply series from Corsair is the RMx range. Incredibly reliably, very stable, silent, and good looks. However, it has been a while since the previous generation has been released, and in the year 2021, Corsair has decided to revamp and restyle the units a bit more, matching the current day and age of power supplies. The silent RMx series come with an 80plus Gold certification, which means it's 90% efficient at 50% load at 110v and even 92% at 230v. Efficiency matters. The PSU itself is fully modular; for most of you, with a side panel window in their chassis, a must really as you'll want modular cables. The new update brings a nice dark-looking product, used now is a 135mm ML fan for silent operation (was a 140mm fluid dynamic bearing fan). The PSU is passive in a hybrid fashion. The PSU has been tweaked on its audibility front with a Zero RPM Fan Mode, which means that the cooling fan switches off entirely for near-silent and passive operation at low and medium loads. This 80 Plus Gold certified power supply thus has silent Zero-RPM fan operation up to a certain load. The product comes with quality capacitors and fully modular cables. Corsair has reconfigured the cabling as well; for our tested 650W model, you'll get four PCIe PEG 6/8 pin headers spread out over two cables. Also, on the motherboard front, we've seen more and more manufacturers move to more phases and dial 4/8 pin power headers; this was upgraded as well, as the unit offers two EPS12V connectors.

The silent RMx series is offered in five models, the RM550x, RM650x, RM750x, RM850x (all 16cm in length), and a 180mm-long casing RM1000x. The numbers in the product names obviously refer to its maximum wattage. It is a Gold certified product series, which means it's 90% efficient at 50% load and does efficiency matter. Many years ago, PSUs were as low as 70% efficient, meaning that 30% of the used power vanishes and is lost in space while paying for that electricity bill. In this day and era, we hover at a 90% efficiency. The RM650x itself is 100% modular as well; for most of you with a side panel window in their chassis, a must really as you'll want modular cables. All cables are colored completely dark, from connectors to wires to sleeves.

As mentioned, the PSU fan doesn't even rotate until it reaches a certain load or temperature, so if your PC is idle and pretty much-doing nothing, the already rather silent fan will actually disable itself. The thermally and load-controlled fan spins up gradually above 40% load, thus up to 260 Watt power consumption; this 650W PSU makes no noise whatsoever, but even during more stressed usage and gaming remains quiet. All in all, we have plenty to show you and test. Mind you that being the mainstream to the high-end range, you'll get an added benefit as well. An outstanding warranty, Corsair back you for 10 years on this series of PSUs. Hey, that's all gold by itself, have a quick peek, and then let's head onwards into the review.

8 pages 1 2 3 4 next »

Corsair M65 RGB Ultra mouse review
In this article, we review the Corsair M65 RGB Ultra mouse. It’s an optical mouse that was launched on 21st September. It’s a new release from the M65 series, which was introduced already seven years ago. After two years – the Pro edition was introduced, and in 2019 there was an M65 RGB Elite version; what do we have now?

Corsair Sabre RGB Pro Wireless mouse review
In this article, we review the Corsair Sabre RGB Pro Wireless mouse. It’s an optical mouse that was launched on 16th September. It’s a new release from the Sabre series, which was introduced seven years ago. This time around, it’s not a regular (wired) version called Sabre RGB Pro which was presented on 8th April, but it’s a wireless one – both of them are from the Corsair’s Champions series.

Corsair MP600 Pro XT PCIe 4.0 M.2 NVMe review
Let me introduce you to Corsair's most monstrous MP600 NVMe SSD, the Corsair MP600 Pro XT @ PCIe Gen 4.0 SSD; this is the PRO-XT model, which is one of the fastest NVMe SSDs we have tested so far, wi...

Corsair HS80 RGB Wireless Headset review
Corsair has a very broad range of PC components and peripherals. There are also headsets available, and the range starts from the budget-oriented HS series (the reviewed one is one of them), going upwards to the high-end Void series. In this review, we're checking out the all-new Corsair HS80 RGB Wireless. Its debut is on the 19th of August. Speaking of the HS series, it starts from HS35, and till now, it also contained HS45, HS50, HS60, HS70, HS75 (and some of them had different variants). So as you can see, the reviewed model is something for the upper-range of the series and the first of its name.