Load Regulation
| Test | 12V | 5V | 3.3V | 5VSB | DC/AC (Watts) | Efficiency | Fan Speed (RPM) | PSU Noise (dB[A]) | Temps (In/Out) | PF/AC Volts |
| 10% | 6.440A | 2.008A | 1.989A | 0.999A | 100.002 | 86.785% | 876 | 20.6 | 35.51C | 0.965 |
| 12.176V | 4.981V | 3.318V | 5.005V | 115.226 | 39.76C | 115.13V | ||||
| 20% | 13.930A | 3.013A | 2.984A | 1.201A | 199.947 | 91.613% | 871 | 20.4 | 35.88C | 0.976 |
| 12.135V | 4.979V | 3.317V | 4.996V | 218.25 | 40.41C | 115.1V | ||||
| 30% | 21.769A | 3.52A | 3.484A | 1.403A | 300 | 92.113% | 874 | 20.5 | 36.55C | 0.98 |
| 12.125V | 4.973V | 3.315V | 4.989V | 325.687 | 41.40C | 115.07V | ||||
| 40% | 29.592A | 4.026A | 3.984A | 1.606A | 399.696 | 92.141% | 874 | 20.5 | 36.74C | 0.982 |
| 12.115V | 4.969V | 3.313V | 4.981V | 433.787 | 41.76C | 115.05V | ||||
| 50% | 37.084A | 5.034A | 4.982A | 1.81A | 499.463 | 91.776% | 918 | 22.1 | 36.85C | 0.984 |
| 12.106V | 4.967V | 3.312V | 4.973V | 544.222 | 42.31C | 115.02V | ||||
| 60% | 44.656A | 6.046A | 5.983A | 2A | 599.906 | 91.226% | 995 | 24.2 | 37.33C | 0.987 |
| 12.096V | 4.963V | 3.31V | 4.965V | 657.609 | 43.35C | 114.99V | ||||
| 70% | 52.169A | 7.058A | 6.983A | 2.219A | 699.717 | 90.55% | 1115 | 27.5 | 37.85C | 0.989 |
| 12.088V | 4.96V | 3.308V | 4.957V | 772.746 | 45.41C | 114.97V | ||||
| 80% | 59.765A | 8.002A | 7.984A | 2.323A | 799.413 | 89.771% | 1194 | 29.8 | 38.02C | 0.991 |
| 12.078V | 4.956V | 3.306V | 4.951V | 890.506 | 46.26C | 114.94V | ||||
| 90% | 67.700A | 8.582A | 8.471A | 2.427A | 899.547 | 88.947% | 1316 | 32.8 | 39.21C | 0.992 |
| 12.069V | 4.952V | 3.305V | 4.945V | 1011.328 | 48.41C | 114.91V | ||||
| 100% | 75.453A | 9.095A | 8.99A | 3.043A | 999.572 | 87.981% | 1583 | 37.6 | 39.75C | 0.993 |
| 12.059V | 4.948V | 3.303V | 4.929V | 1136.127 | 49.81C | 114.88V | ||||
| 110% | 83.157A | 10.115A | 10.086A | 3.046A | 1100.181 | 86.844% | 1952 | 42.9 | 40.64C | 0.994 |
| 12.048V | 4.943V | 3.301V | 4.925V | 1266.864 | 51.49C | 114.86V | ||||
| CL1 | 0.115A | 18.126A | 18.019A | 0A | 151.299 | 82.862% | 1091 | 26.8 | 36.75C | 0.976 |
| 12.142V | 4.982V | 3.308V | 5.007V | 182.59 | 42.28C | 115.11V | ||||
| CL2 | 0.115A | 20.023A | 0A | 0A | 101.395 | 81.4% | 938 | 22.7 | 37.11C | 0.966 |
| 12.184V | 4.994V | 3.312V | 5.025V | 124.567 | 43.26C | 115.12V | ||||
| CL3 | 0.114A | 0A | 19.894A | 0A | 67.384 | 75.131% | 878 | 20.7 | 38.25C | 0.947 |
| 12.173V | 4.98V | 3.317V | 5.009V | 89.689 | 45.26C | 115.13V | ||||
| CL4 | 82.895A | 0A | 0A | 0A | 1000.093 | 88.832% | 1346 | 33.1 | 39.51C | 0.993 |
| 12.064V | 4.95V | 3.31V | 4.995V | 1125.822 | 47.48C | 114.89V |
Load regulation is satisfactory, in general.
Ripple Suppression
| Test | 12V | 5V | 3.3V | 5VSB | Pass/Fail |
| 10% Load | 11.1 mV | 9.6 mV | 7.8 mV | 7.0 mV | Pass |
| 20% Load | 16.5 mV | 10.0 mV | 8.3 mV | 9.9 mV | Pass |
| 30% Load | 13.7 mV | 10.8 mV | 9.7 mV | 9.0 mV | Pass |
| 40% Load | 12.7 mV | 11.5 mV | 8.9 mV | 8.5 mV | Pass |
| 50% Load | 11.6 mV | 12.4 mV | 9.4 mV | 9.0 mV | Pass |
| 60% Load | 13.7 mV | 13.4 mV | 10.6 mV | 10.2 mV | Pass |
| 70% Load | 14.9 mV | 14.7 mV | 13.1 mV | 11.8 mV | Pass |
| 80% Load | 14.7 mV | 15.1 mV | 16.8 mV | 11.8 mV | Pass |
| 90% Load | 15.6 mV | 16.2 mV | 16.8 mV | 12.6 mV | Pass |
| 100% Load | 24.6 mV | 18.4 mV | 19.0 mV | 15.6 mV | Pass |
| 110% Load | 25.7 mV | 19.9 mV | 19.8 mV | 17.1 mV | Pass |
| Crossload 1 | 27.3 mV | 17.9 mV | 26.7 mV | 14.5 mV | Pass |
| Crossload 2 | 13.3 mV | 13.7 mV | 11.7 mV | 9.5 mV | Pass |
| Crossload 3 | 12.0 mV | 12.4 mV | 20.3 mV | 9.3 mV | Pass |
| Crossload 4 | 23.9 mV | 15.2 mV | 13.0 mV | 12.0 mV | Pass |
Ripple suppression is good on all rails.
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I’ve noticed quite a few reviews of this PSU, both online and one person I know personally, which have reported really bad coil whine issues just by turning the PSU on. I’m wondering if there was a large bad batch that went out and the rest are fine or if this is a bigger problem. Regardless, I’m really glad to see a slightly more budget series from corsair to slip between their cxm and rmx series assuming this coil whine issue isn’t widespread.
This is a new product, just got released, so you probably refer to the previous RMe. We didn’t notice any strange issues in our tests, and we have tested almost a dozen different RMe models.
Hello,
Any incoming review of the RM850e model?
Once they send us a sample, sure!
Ah my mistake. Thanks for the clarification. I guess me and a couple others just got unlucky.
Hello Aris,
The soldering it’s bad as it can be. Off centered and off axis SMD, cold joints and manual soldering for some parts. High Power parts with half the flux.
You call this “Average soldering quality”? This thing it’s a fire hazard waiting to happen.
BTW can you give an example of bad soldering in your reviews?
Hi there! This unit is a fire-hazard? It passed hours of testing under the toughest possible condition without breaking or creating any issues.
Where did you see cold joints? If a joint is cold, the unit wouldn’t work at the first place.
Believe me this is average to my eyes. For me notably problems are mostly long component leads which can create shorts and when solder is missing, creating poor connections and increased resistance.
This is bad soldering example: https://www.techpowerup.com/review/xigmatek-maverick-s-500/4.html
The manual soldering done on some SMD parts point me to this cold joints issue, if the QC misses one then here you go.
Also too little flux for the FET’s could lead in time to a crack. Those parts get thermal cycle all day long.
Remember the we don’t buy PSU’s for 1-2 years.
Yeah the example is real bad, thanks for sharing.
Keep up the good work man.