Corsair CP-9020186-UK SF750 80 Plus Platinum Certified Power Supply Unit, SF Series, 750 W, Fully Modular - Black (UK)

Product Information

The SF750 will let you draw more than 850 watts without shutting down but I don’t think that’s such a hot idea. Technically there is little, if anything we can fault. Load Regulation is first class, and the unit meets Platinum efficiency levels without a hiccup. The unit design produces tight control over AC ripple mV and we recorded stellar results, even under full load conditions.

assuming it is, can I swap the modular cables only at the PSU side or will the cables be different gauge wire?Due to public requests we have changed our temperature settings recently – previously we rated with ambient temperatures at 25C, we have increased ambient temperatures by 10c (to 35c) in our environment to greater reflect warmer internal chassis conditions. Obviously when measuring AC noise and ripple on the DC outputs the cleaner (less recorded) means we have a better end result. We measured this AC signal amplitude to see how closely the unit complied with the ATX standard. AC Ripple (mV p-p) The only SFX unit that matches—actually surpasses—the SF750's overall performance is the SF600 Platinum. Although with 150 W less power output, it achieving better performance in some areas isn't surprising, like load regulation on the minor rails and ripple suppression. However, while it trumps its smaller sibling in power density, the SF750 also has the better cable configuration since it is equipped with twice the EPS, PCIe, and SATA connectors. There are a total of eight individually sleeved modular cables in the box and there are plenty of connectors to cater for the majority of enthusiast system builds. We can see that the 750W version also ships with 2 4+4 Pin EPX/ATX12V connectors, a great addition to see. The cables are quite short, intentionally, to ensure system builders are not dealing with very long cables inside a small form factor case. It is worth noting this however if, for some reason you are intend on using this power supply inside a larger chassis. Thank you! Do you think then that even the 600 would be enough or should I definitely make the jump to 750?

Correctly testing power supplies is a complex procedure and KitGuru have configured a test bench which can deliver up to a 2,000 watt DC load. So for 1973 Laverda’s 750 twin got the boost it needed, in the shape of the SF1. By this time sound level regulations were intruding so Laverda was faced with the conflicting difficulties of increasing gas flow and decreasing exhaust noise. Laverda achieved both ends with large diameter exhaust pipes (1.6-inch) interconnected by a transverse collector box, new style Dell’ Orto 36mm pumper carbs and a matching new camshaft. These mods lifted power to a claimed 66bhp at 7300rpm, and top speed rose accordingly to around 117mph. Additionally, as we would expect in this price point, the SF750 is a fully modular power supply featuring very high Platinum efficiency certification. This is a standard sized SFX chassis too – its not one of the extended length versions we see from time to time from other companies. Corsair are using Great Wall as the partner for this particular power supply design. The layout, construction and overall design is very similar to the SF600 model in the range which we had a look at before. All of the electrolytic capacitors inside are Japanese made, which is good to see – especially as Corsair claim this in their literature. The primary bulk capacitor is made by Nippon Chemi Con rated for 470uF, 420C and 105C. Load regulation proves to be very good, holding within 2% of the recommended guidelines. Corsair SF750 SFXHmm what downsides? Aside from Coilwhine which i've experienced with 3 units, i didn't know there was other downsides? I have the Loki 850w version right now and has been great aside from the initial annoyances. The 90mm fan is not active when the power supply is running at lower power demands. We didn't hear any coil whine either, which is excellent. At higher loads, the fan does spin up a little more, becoming more audible when the load hits around 600 watts. At full load the fan is clearly audible, but it is only 90mm and we would expect this. I am wondering is there any way to control the fan of a Corsair PSU without dissecting it and putting a Noctua which will be powered by the MB? I do not want to void the PSU warranty but with that high temperature 24/7, it seems either use the warranty soon or void it :P I've put it though a few hours of testing and the highest complete system power I have managed to achieve is 620w.

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) OVP (Over Voltage) | UVP (Under Voltage) | SCP (Short Circuit) | OTP (Over Temp) | OPP (Over Power) At 788 watts, the efficiency level measures 91.6%. Not a practical situation to be running 24/7, but worth noting. It is likely if you have this supply in your system and you are doing general work it won't make a noise at all. Under higher load situations, the fan will spin, but until you are close to 80% load, it won't really make its presence known. At full load, the fan is quite noisy but we would expect this – after all it is still only 90mm in diameter. Today we take a look at one of the newest power supplies from market leader Corsair – their new SF750 SFX Platinum. Previously the SF Platinum series shipped in only 450W and 650W capacities, so this new high model will appeal to the hard core enthusiast user looking for a high wattage small form factor supply. This supply also features a larger 92mm fan, rather than 80mm and it has a ‘Zero RPM Fan mode' to reduce noise output under lower load situations.The Corsair SF750 is an SFX power supply – and not one of the many extended units we have seen in recent years – its only 63mm x 125mm x 100 mm (HxLxW). We tested this power supply and it was not only able to deliver a continuous 750W, but it almost delivered 790W before it shut off safely. This is very reassuring to see and we recorded a long run at 770W load without any problems or potential shut down issues occurring. To my knowledge, the cables are interchangeable between all SF series PSUs, as well as some RM units iirc. Desktop: Intel Core i9-9900K | ASUS Strix Z390-F | G.Skill Trident Z Neo 2x16GB @ 3200MHz CL14 | EVGA GeForce RTX 2070 SUPER XC Ultra | Corsair RM650x | Fractal Design Define R6

To my fellow SF750 owners, if anyone is getting an AIB 3x8 pin RTX 3080 / 3090, are you going to run the 2 x 8 pins from one rail and use the 2nd rail for the last 8 pin? Is this safe? Nvidia recommends using separate cable connections for each 8 pin connector, i was wondering if this was the same for Board partner versions. SFX power supplies always have to make sacrifices in regards to fan noise, and thankfully Corsair have taken some clever steps forward to alleviate this potential headache. They have adopted a larger 90mm rifle (normally 80mm) bearing fan inside this supply, and thanks to Corsair's Zero RPM system, it does not spin at all under lower or even normal load situations. My main concern is that 750W may be a bit close for such a high power system, especially with the addition of 7 QL120s, EK DDC pump, etc... The SF750 has only 2 PCIe splitting in two connectors. So is there a difference using 1 PCIe and 1 PCIe splitted in two and on the other hand using 3 discrete PCIe cables? I mean do I get more wattage with 3 separate PCIe cables or doesn't it matter.Depends entirely on the whole combination. Can get power hungry CPUs and power hungry 3090's / 3080Ti's that go well above FE at times when OC'd. Then in 1974 came the SF2 where the SF engine reached the pinnacle of its road-going development, although not until ungagged did it breathe freely enough to realise its full potential, when with matching recarburation 120mph was available.