We would like to thank Corsair for supplying the review sample.
The Corsair SF750 is the strongest SFX power supply money can buy today. At 750 W, its power density is ultra-high, capable of supporting a very strong system equipped with power hungry components. Its main competitor is the SilverStone SX700-G, which has 50 W less power output and fails to perform as well in nearly every major way (load regulation, ripple suppression, and transient response).
Thus far, Corsair has had a great cooperation with Great Wall, the manufacturer behind the entire SF line. Before the release of the SF750, the SF450 and SF600 Platinum had been introduced, making the competition feel awkward. With the SF750, Corsair's SFX line is now complete, currently dominating this market in terms of performance while even managing to keep output noise low. High performance in tandem with low noise output is very difficult to achieve, especially in small form factor power supplies.
|Corsair SF750 Platinum Features & Specs|
|Max. DC Output||750 W|
|Efficiency||80 PLUS Platinum, ETA-A (88-91%)|
|Noise||LAMBDA-A- (25-30 dB[A])|
|Intel C6/C7 Power State Support||Yes|
|Operating Temperatures||0–50 °C|
|Protections||Over Voltage Protection|
Under Voltage Protection
Over Power Protection
Over Temperature Protection
Over Current Protection
Short Circuit Protection
|Cooling||92 mm Rifle Bearing Fan (NR092L)|
|Dimensions||128 mm (W) x 65 mm (H) x 102 mm (D)|
|Weight||0.9 kg (1.98 lb)|
|Compliance||SFX, EPS 2.92|
|Price at Time of Review (excl. VAT)||$179.99|
Besides an 80 PLUS Platinum certification, the SF750 has also been certified by Cybenetics, achieving ETA-A and LAMBDA-A- certifications in efficiency and noise respectively.
|Corsair SF750 Platinum Power Specs|
|Total Max. Power||750W|
Cables and Connectors
|Description||Cable Count||Connector Count (Total)||Gauge||In Cable Capacitors|
|ATX connector 20+4 pin (300 mm)||1||1||16-18AWG||No|
|4+4 pin EPS12V (400 mm)||2||2||16AWG||No|
|6+2 pin PCIe (400 mm+100 mm)||2||4||16AWG||No|
|SATA (100 mm+120 mm+120 mm+120 mm)||2||8||18AWG||No|
|4-pin Molex (100 mm+120 mm+120 mm)||1||3||18AWG||No|
|AC Power Cord (1380 mm) - C13 coupler||1||1||16AWG||-|
There are two EPS and four PCIe connectors, of which all are capable of handling the unit's full power. The number of peripheral connectors is adequate, and the distance between connectors is satisfactory since this unit will probably be installed into a small chassis.
Corsair should in my opinion also sell a version of this unit with longer cables since a PSU with such high power output can also be used in a larger chassis with more system components because of the included SFX-to-ATX adapter.
|Corsair SF750 Parts Description|
|Manufacturer (OEM)||Great Wall|
|Transient Filter||4x Y caps, 2x X caps, 3x CM chokes, 1x MOV, 1x CMD02X|
|Inrush Current Protection||NTC Thermistor & Diode|
|APFC MOSFET||Infineon IPZ60R060C7 (650 V, 22 A @ 100 °C, 0.06 Ohm)|
|APFC Boost Diode||ROHM SCS306AP (650 V, 6 A @ 135 °C)|
|Hold-up Cap(s)||Nippon Chemi-Con (420 V, 470 uF, KMZ series, 2000 h @ 105 °C).|
|Main Switchers||2x 60F2094 (600 V, 15.8 A @ 150 °C, 0.19 Ohm)|
|Driver IC||Silicon Labs Si8230BD|
|APFC Controller||Champion CM6502UHHX & CM03AX Green PFC controller|
|Resonant & PWM Controller||Champion CM6901X|
|Quasi-Resonant Controller||Infineon 5QR1680AG|
|Topology||Primary side: Half-Bridge & LLC Resonant Controller|
Secondary side: Synchronous Rectification & DC-DC converters
|+12V||6x APower 4N1R8C-A (45 V, 32 A @ 70 °C, 1.8 mΩ)|
|5V & 3.3V||DC-DC Converters: 4x Infineon PSMN2R0-30YLE (30 V, 100 A @ 100 °C, 2.8 mΩ @ 100 °C)|
PWM Controllers: ANPEC APW7159C
|Filtering Capacitors||Electrolytics: 1x Nippon Chemi-Con (4 - 10,000 h lifetime @ 105 °C, KY series), 2x Rubycon (3 - 6,000 h lifetime @ 105°C, YXG series)|
Polymers: Nippon Chemi-Con (G61B, G8, G84R, G84G, G85F), 6x Nichicon (LG)
|Supervisor IC||Infinno IN1S429i-SCG|
|Fan Model||Corsair NR092L (92 mm, 12 V, 0.22 A, 3950 RPM, Rifle Bearing)|
|Rectifier||CSD18534 (60 V, 13 A @ 25 °C, 9.8 mOhm)|
|Step-Down Converter||Texas Instruments TPS54231 (3.5 V - 28 V Input, 2 A)|
The Great Wall platform uses high quality parts, including Chemi-Con, Rubycon, and Nichicon caps. The primary side uses a half-bridge topology along with an LLC resonant converter.
On the secondary side, six FETs regulate the +12V rail, while the minor rails are handled by a couple of DC-DC converters. A PIC controller handles the fan-speed profile, allowing for more precise control.