Page 20 - Computer Power User - February 2017
P. 20

“ . . . one of the best options
                                                                                   for power users looking
                                                                                   to use a high-powered
                                                                                      graphics card in a
                                                                                          Mini-ITX rig.”





                                                                          REVOLUTION SFX 650W
                                                                          $124.99
                                                                          ENERMAX
                                                                          www.enermax.com



           ENERMAX REVOLUTION SFX 650W


               ith a growing number of enthusiasts   above 195 watts, which means the unit   component) is protected against
           Wbuilding small form factor systems,   will be completely silent when your PC is   overpower, overvoltage, undervoltage,
           we’ve seen a lot of case manufacturers   idle. ENERMAX also includes a bracket,   overcurrent, over temperature, and short-
           release specially designed Mini-ITX   should you want to use this PSU in an   circuit conditions.
           cases that both optimize airflow and   mATX or ATX chassis.            We paired the REVOLUTION SFX
           support for high performance parts. To   ENERMAX has recently overhauled the   650W with a system running an Intel
           maximum space, many of these Mini-ITX   modular cabling on its PSUs, moving to   Core i7-7700K, a GIGABYTE GeForce
           cases require an SFX power supply with   either individually-sleeved cables or flexible   GTX 1080 Xtreme Gaming, and 32GB
           standard dimensions of 2.5 x 4.92 x   flat cables.  The REVOLUTION SFX   of Corsair  Vengeance LED DDR4-
           3.94-inches (HxWxD). Standard ATX   650W uses flat black modular cabling,   3200. It had no trouble powering the
           PSU dimensions, by comparison, are   and these cables are notably shorter than   high-end hardware and was able to push
           generally 5.9 inches tall and 5.5 inches   what comes with a full-size PSU. It’s a   through the demanding combined load
           long, and many high wattage models are   smart design choice, because Mini-ITX   of Prime95’s In-Place test and Unigine
           quite a bit longer. The REVOLUTION   cases don’t have much free space to stow   Heaven 4.0. During testing, peak power
           SFX 650W is one of the highest wattage   away excess cable. Connector options are   reached 420 and a power factor of .986—
           SFX PSUs on the market, and according to   as follows: one 24-pin main power, a 4+4-  an excellent result. In most cases, power
           ENERMAX, it’s the highest wattage SFX   pin CPU power, two 6+2-pin PCIe, six   factor was between .980 and .988.
           PSU with a standard 3.94-inch depth.  SATA, and four Molex.            There are a lot less SFX power supplies
             Outside of the REVOLUTION SFX      The REVOLUTION SFX 650W         on the market than standard ATX PSUs,
           650W’s small dimensions, the PSU offers   distributes most of its power over a single   so it’s smart for ENERMAX to design
           the connectivity and features you’d expect   +12V rail. ENERMAX designs the +12V   a SFX PSU that truly meets the needs
           on an enthusiast-level 650 watt power   rail to support up to 54A (648 watts),   of enthusiasts. Based on our testing, the
           supply. The REVOLUTION SFX 650W    while the +3.3V rail handles up to 18A   REVOLUTION SFX 650W looks to be
           meets the 80 PLUS Gold certification, is   and the +5.5V supports up to 15A.   one of the best options for power users
           fully modular, and comes with a PWM   Japanese electrolytic capacitors rated for   planning to use a high-powered graphics
           controlled fan for quiet operation. The   up to 105 degrees Celsius are responsible   card in a Mini-ITX rig.  ■
           REVOLUTION SFX 650W’s 80mm         for handling the PSU’s power. Internal
           fan won’t start spinning until load goes   circuity (and by extension, any connected     BY NATHAN LAKE


            Specs: Maximum wattage (continuous): 650W; 12V rail: 1 54A; +5V max: 15A; +3.3V max: 18A; Efficiency rating (advertised): 80 PLUS Gold; Fan: 80mm;
            Connectors: 1 x 24-pin ATX, 1 x 4+4-pin EPS12V, 2 x 6+2-pin PCIe, 6 x SATA, 4 x Molex; Warranty: 5 years

            Test System Specs: Processor: Intel Core i7-7700K; Motherboard: GIGABYTE GA-Z270X-Ultra Gaming; GPU: GIGABYTE GeForce GTX 1080 Xtreme Gaming;
            Memory: Corsair Vengeance LED 32GB DDR4-3200MHz; Storage: 480GB Patriot Hellfire; OS: Windows 10 Enterprise




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