Summary and conclusion
The overall performance is first class and takes the lead from the SF850.
The whole thing now once again for 115 volts:
The SF1000 left me with an even better impression than its lower capacity sibling, the SF850. By working with Great Wall, Corsair has managed to deliver the most powerful SFX device that meets the stringent ATX v3.1 specification, while keeping the bridging time well above 17 ms, which was required in the previous ATX specification. Unfortunately, this requirement is more relaxed in the new ATX specification, dropping to 12 ms. Noise is low at light and medium loads, and the PSU could get an even better Cybenetics noise rating if the maximum combined power on the side rails was 100W instead of 130W, which is pretty high by today’s standards. I can understand the reason for a strong 5V rail (ARGB), but it doesn’t make sense to make the 3.3V rail that strong. Also, the OCP trip points on these two rails are very high, so well over 30A can flow on each rail. Great Wall should correct the OCP on the secondary rails and lower them to a more reasonable level.
I think the price of the SF1000 will be reasonable starting at around 230 euros. There aren’t many products that get my “Editor’s Choice” award, but with the SF1000 being the most powerful SFX unit on the market today, as well as being compatible with the latest ATX specification, I couldn’t do otherwise.
With the new SF series, Corsair is making a statement of independence from the previously mighty 80 PLUS range, which insists on upping its charges while using a completely outdated and easily cheated methodology. According to Corsair’s PSU PM, only Cybenetics ratings will be used from now on. These ratings use the average efficiency and noise ratings of at least 1450 different load combinations, from minimum to full load, and other data to classify PSUs into the appropriate efficiency and noise categories.
| Full power at 47°C High power density Highest performance Low noise at light and medium load High efficiency Highest efficiency at 5VSB Suitable for ATX v3.1 and PCIe 5.1 High build quality Excellent transient response at 12 V (ATX v3.1 test) Good transient response on all rails (normal loads) Tight load regulation Long bridging time Low inrush currents Conservatively set 12V OCP and OPP Low standby power Compatible with alternative power saving mode (ALPM) Quality fan, FDB Fully modular (individually sleeved cables) Sufficient cables and connections, including a high-power plug (12 2-pin, 600W) SFX to ATX adapter bracket included 7 year warranty |
The OCP release points must be lower on the side rails. The power factor must be increased |
Many thanks to Aris, whose data I can and will continue to use in the future if readers request such power supply tests.
The original appeared on hwbusters.com
Corsair SF Series Platinum SF1000 1000W SFX, ATX 3.1 (CP-9020257-EU)
 | Abhol-/Versandbereit in 1-3 Werktagen | 222,01 €*Stand: 30.07.24 12:26 |
 | Lagernd im Außenlager, Lieferung 2-3 WerktageStand: 30.07.24 12:27 | 229,56 €*Stand: 30.07.24 12:29 |
 | Ab Zentrallager sofort lieferbar | 229,57 €*Stand: 30.07.24 12:30 |
- 1 - Introduction and technical data
- 2 - Unboxing, cables and protection circuits
- 3 - Teardown: Topology and components
- 4 - Load Regulation, Ripple Suppression
- 5 - Transient Response
- 6 - Hold-Up Time, Timings, Inrush-Current
- 7 - Average Efficiency and PF
- 8 - Noise and fan control
- 9 - Summary and conclusion
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