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

Product Information

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. 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. 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).

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. 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... 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. I have many power pig cards and I found the single cable and pigtail combination works with cards want three PCIe cable connections. 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.PLUS Platinum Certification: Ensures ultra-high efficiency operation for less excess heat and lower operating costs.

This is all from what I've read though (multiple sources) and not from my own testing so maybe not as bad as they seem. If my PSU struggles too much I'll probably go for either the 850w or 1000w Loki 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. 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.Peripherals: GK61 (Optical Gateron Red) with Mistel White/Orange keycaps, Logitech G102 (Purple), BitWit Ensemble Grey Deskpad. Corsair are keen to point out that lowering noise is one of their key focus points with the SF750. Many small form factor power supplies are equipped with a tiny 80mm fan, which are typically known to generate a lot of noise. By moving to a 90mm fan, they are able to spin the fan slower while producing good levels of airflow – all while reducing noise emissions. They also state that due to careful component selection that coil whine will not be a problem. I will test this out later. I've put it though a few hours of testing and the highest complete system power I have managed to achieve is 620w. Vya Domus Does 7900XT still has high idle consumption on multiple monitors? And should I wait for the Supers even when I'm leaning towards AMD cards? ( 5)