Over Power Protection and Max Wattage
The Corsair SF750 already impresses in the fact that such a small power supply can produce 750 watts of power. It is, however, always part of our testing to see how far this can be pushed. Not only because it’s fun to see the numbers whir up, but also to make sure that the overpower protections work.
In this regard, we can confirm that they did work, but not only that, the Corsair SF750 was capable of producing another 247.6 watts of power before the protections came into effect.
When you consider that this is over 30% of the base wattage cited on the box, this is very impressive. If you did, therefore, need to squeeze a little more out of this, you would not find this power supply wanting!
The ‘excessive’ glue is on purpose, it quiets down components which could vibrate and cause coil whine. Sure it doesn’t look pretty but all manufacturers do it (and at least corsair used black so it was less obtrusive). Look at the JonnyGuru photos of the AX1500i (arguably best PSU made) and this amount pales in comparison.
I understand the purpose, but honestly, not all manufacturers do it or, at least to this quantity. I probably see the insides of around 100 different power supplies a year, some have lots, some have none, this definitely falls into the ‘more than usual’ category. I do, however, credit the design for using black glue to make it much less obvious than the standard white and it’s certainly not a criticism of the power supply as a whole.
Hi,
Thanks for this review but have you forgot about noise measurement?
Please add actual DB numbers.
Thanks
Hi Astro, We don’t tend to noise test power supplies for two reasons. Firstly, excessive noise in them is rare and usually only when they are overly dusty/hot/faulty (but when it does exist, we do comment upon it) and secondly, the machine we test them on is AMAZINGLY loud.
I will, however, look to make noise a factor in future reviews. Just got to think of a good application for this.