Page 20 - Computer Power User - February 2017

“ . . . 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

20 February2017 / www.computerpoweruser.com