Average Noise
The average noise output is higher than 30 dBA. This is not the quietest 1000W SFX unit, but you shouldn’t expect such a tiny platform to be powerful and silent at the same time at high loads.
Fan Noise & Speed Maps @ 28-32 °C
As you will notice from the CL_Fan_Speed graph, the fan’s passive operation doesn’t last long. On the contrary, it only lasts for a short period because, during these tests, I gradually apply full load on the minor rails, steadily increasing the load at 12V during every minor-rail load circle. This specific load pattern is the worst possible scenario for this platform, but from the moment its official power specs mention 130W max combined load on the minor rails, I must follow them. Although the fan spins between 400-600 RPM at a light and moderate 12V load and with the combined load on the minor rails remaining below 90W, its output noise is still low, below 6 dBA.
I’m so glad I found your reviews! One thing you could do to improve your reviews is to include frequency response PSUs (or anything that can emit noise). This would help to visualize if there is nasty coil whine or other undesirable noises coming out of fans/electronics/whatever. I’m asking for this because people have different hearing ability and you might not perceive noises that other people do. Such graph would be an objective measurement and thus easily comparable and outside of our subjective variances in ear hardware 😉
I could do that yes, but the problem is that it takes sooo much time 🙁
Amazing work with these review articles! I especially like the noise performance graph at various loads, that is extremely helpful for me. Could you please make the affiliate link prominent? I would like to support your testing.
Thank you!
Would you recommend SF1000 over lower wattage models if my average load is around 600W? From the tests, I see it should be quieter at that load, but I wonder if there’s any downside to running this PSU at a half-rated load.
Downside is it will probably pull more power from socket when your computer is idle or your doing light tasks because this is way outside it’s optimal operational efficiency.
On corsairs website they are still referencing 80 Plus Platinum for the new SF750/SF850/SF1000
https://www.corsair.com/us/en/explorer/diy-builder/power-supply-units/sf750sf850sf1000-platinum-atx-31-everything-you-need-to-know/
-80 PLUS Platinum efficiency ensures lower energy consumption, noise, temperatures, and your power bill.
Yes, Corsair marketing seems to screw up this. In Computex the PSU PM assured me that no 80 P from now on.
Some MOSFET model name in the list is wrong
Do you want to elaborate, to help me fix it?
Hi aris, thank you very much for the review!. can you elaborate on the OCP triggering points? What are the risks of being set too high? Any risks to other pc componants ?
They can kill the PSU if too high, especially at high temperatures.