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

Product Information

I have many power pig cards and I found the single cable and pigtail combination works with cards want three PCIe cable connections. 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. The other side of the power supply shows the modular bay- clearly named and split into sections to ease installation. The Corsair SF750 SFX Platinum power supply is rated to deliver a combined, continuous output up to 750 watts at up to 50c. It is based around a single rail design that can deliver up to 62.5A (750W). No problems here. Thank you! Do you think then that even the 600 would be enough or should I definitely make the jump to 750?

To my knowledge, the cables are interchangeable between all SF series PSUs, as well as some RM units iirc. The unit passes our Cross Load testing without any problems. When hit with 60 AMPS the +12V rail held at 11.88. Not a very realistic situation in real life, but a good sign that the design works well. Individually Sleeved, Fully Modular Cables: Flexible paracord sleeved cables make routing and cable management incredibly easy. 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)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. 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.

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. This is the first desktop PSU with fan failure protection I have come across. In other words, if the fan has a problem or the PSU doesn't detect it, which would happen if it isn't connected, the SPX-750 won't start. 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. Today to test the power supply we have taken it into our acoustics room environment and have set our Digital Sound Level Noise Decibel Meter Style 2 one meter away from the unit. We have no other fans running so we can effectively measure just the noise from the unit itself. Thank you for your support and the very helpful link which shows clearly my next SFF Alderlake built needs a stronger SFX PSU. Hopefully there will be SF850+ in future.

PC: Motherboard: ASUS B550M TUF-Plus, CPU: Ryzen 3 3100, CPU Cooler: Arctic Freezer 34, GPU: GIGABYTE WindForce GTX1650S, RAM: HyperX Fury RGB 2x8GB 3200 CL16, Case, CoolerMaster MB311L ARGB, Boot Drive: 250GB MX500, Game Drive: WD Blue 1TB 7200RPM HDD.

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... 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.I noticed the SF750 has 2x GPU cables and 2X CPU 8 pin cables which kinda make no sense for an SFX PSU. I don't understand why they would include 2 x 8pin CPU cables. I don't think i've seen an ITX board require more than 1 x 8 pin connector. Is it safe to connect the extra CPU 8 pin to the 3rd 8 pin connector on the 3080/3090? We like the box artwork for this power supply, all the key points are listed along the bottom at the front of the box, along with a quality high resolution image in the middle. Efficiency is excellent, peaking at just over 94% around 50% load. At full load the power supply maintains a 92.7% efficiency level, which is impressive. 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. Photography for this review is completed inhouse with a Canon 1DX MK2 with 50mm f1.2 Prime lens and a Leica S series medium format camera with S series prime lens. Please do not use any of the images within this review without express permission.

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) Would i get another? I don't know, i know they're Seasonic OEM's... a majority of these SFX-L's are hence all sharing the same problems. I will do my research if i upgrade again and see which ones are OEM's from which manufacturer and decide from there on like i did with this one. Depends how hard you're pushing it (e.g. resolution, RTX, upscaling, frame limiting) and the power limits on the card, but 350 isn't an unreasonable number. 500 is what I'd consider the top-end range for the card.I did not have any issues with temperatures before but now I am worried about the PSU, as the summer is approaching and the ambient temperature rises. I've put it though a few hours of testing and the highest complete system power I have managed to achieve is 620w. Hmm 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. At 788 watts, the efficiency level measures 91.6%. Not a practical situation to be running 24/7, but worth noting. 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.