![]() Said cables match the black aesthetic of the unit nicely but aren't flat and take a bit of force to turn and twist through a chassis' cutout routing holes. Labelling is pretty obvious for the various cables, with four receptors for graphics and a matching four for SATA and peripherals, though it doesn't matter if you mix up SATA and Molex because the cables connect the same way. Those who, for some reason, want the fan to spin at all times can override the ECO mode by flicking the switch on the front. This makes sense, we suppose, as the latest high-efficiency PSUs produce very little in the way of heat.ĮVGA follows suit with the 850 P2, and the fan activates at 20 per cent load (170W), spins very slowly until 40 per cent load (340W) is reached, and then ramps up slowly up to full load, according to documentation. It seems as if most manufacturers have jumped on the semi-passive fan bandwagon on premium supplies. Measurements are standard for the 650-850W units, with 150mm width, 165mm depth and 86mm height. The casing is textured and feels nice to the touch. Globe Fan is the manufacturer of the 25mm-thick dual-ball-bearing spinner. Other companies have ' optimised' grilles that aim to reduce noise EVGA continues using a large stamped grille that encloses a 140mm fan which remains switched off at low loads. Little has changed superficially across EVGA's PSU stack. Offering excellent efficiency from 650W to a monstrous 1,600W, the P2 is designed for the enthusiast, so let's take a closer look at the 850W model. Yesterday's 80 PLUS Gold-rated supplies are today's 80 PLUS Platinum, and EVGA duly obliges with the P2 range. ![]() We've previously been impressed by the SuperNOVA 750 G2, which arrived at retail armed with a keen price and excellent performance. The component company needs to have an excellent relationship with the original design manufacturer (ODM) - very few so-called manufacturers build the supplies themselves they're most likely made to contract - the platform needs to span a wide range of wattages, and features such as semi-passive fans, fully-modular cabling, sky-high efficiencies and long warranties are required. There are a few key concerns that need to be addressed when aiming for the premium end of the market. Almost everyone making PC components has sought to branch out into PSUs, so much so that the market is awash with hundreds of supplies all vying for your attention and, more importantly, wallet. The profits to be made in power-supply unit (PSU) retailing has attracted manufacturers like moths to a flame.
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