Corsair RM1000x ATX v3.1 PSU Review

Epilogue

It isn’t easy to update a product line that is already pretty good, but Corsair had to offer the desired ATX v3.1 compatibility to its popular RMx line. With an overall performance similar to the RMx Shift, the new RMx units are on par with most competing offerings. An interesting feature of these units is the fan speed adjustment knob at their front side, which allows users to set the desired lowest fan speed according to their needs. The RM1000x is a silent operating unit, thanks to its 140mm FDB fan, which doesn’t have to spin at high speeds to handle the unit’s thermal loads. The provided cables are more than enough, with two EPS and four PCIe 6+2 pin on dedicated cables for users with GPUs that don’t utilize the 12+4 pin connector. There is also a high-power PCIe (12+4 pin) connector set at 600W. According to Intel, the 1000W PSUs should have this connector set at 450W, but nobody seems to follow this guideline.

The build quality is high, and the parts that CWT uses in these units are top quality. In the protection features, the 12V OCP and OPP are close to 130%, but I would like to see lower triggering points at high temperatures. Most likely, the platform can handle the abuse, but it is better to tighten the protection features as the temperature goes high. The OCP triggering points on the minor rails, mostly at 3.3V, need some adjustments, too. Lastly, kudos to Corsair for offering fan failure protection. Most of today’s high-end PSUs lack this feature, which is of immense importance. If the fan stops operating, the stress applied to the PSU will be high, and only if over-temperature protection is present and works well will you avoid drama. This is why I decided to add a bonus for fan failure protection to my performance algorithm (it will be implemented in the following days).

Hopefully, the street prices of the new RMx units will be lower than the MSRP ones because the RMx line has gained so much popularity due to its high performance per price ratio. At $190, the RM1000x is expensive, with most competing offerings being notably below this price. On the other hand, we keep on complaining about high PSU prices while high-end GPU prices reach or even exceed $2000.

Before investing in a new power supply, read my Best ATX v3.x PSUs article to check all alternative PSU offerings. You help me a lot by using my affiliate links, which don’t increase the product’s price. I get a commission from Amazon every time you do it, which can make a difference for me, especially now that I am on my own, working exclusively for my media and not for someone else.