EVGA SuperNOVA 1000 G5 Power Supply: features, specs and who it suits

The EVGA SuperNOVA 1000 G5 is a 1000-watt ATX power supply for desktop PCs. It sits in EVGA's 80 Plus Gold line, and the maker describes it as the successor to the G3 series. The listing's part number is 220-G5-1000-X1. Here is what its main features mean for a build.

What 80 Plus Gold and 91% efficiency mean

80 Plus is a voluntary programme that certifies how efficiently a power supply turns wall power into the power a PC uses. EVGA says this unit is Gold certified, with 91% efficiency or higher under typical loads. In general, the higher the efficiency, the less energy turns into heat inside the unit, so it needs less cooling and the fan can stay quieter.

Fully modular cables

With a fully modular design, every cable plugs into the power supply, so you fit only what your parts need. EVGA says this reduces clutter and improves airflow. A cleaner interior also makes it easier to add a drive or swap a graphics card later.

Quiet cooling: fluid dynamic bearing and Eco mode

The unit has a 135mm fan with a fluid dynamic bearing (FDB). In general, FDB fans use a thin film of lubricant instead of balls, which typically means quieter running and a longer life. EVGA also lists an Eco mode. Eco modes usually stop the fan at low loads and start it as the load or temperature rises, so the PC is quiet at idle. Check the manual for how to switch it on or off, as it's typically a selector on the unit.

Capacitors and electrical design

EVGA states the unit uses 100% Japanese capacitors, and an active clamp DC-to-DC converter design that it says improves 3.3V and 5V stability. Capacitors smooth the output, and stable voltages matter because processors and memory are sensitive to sudden changes. EVGA also mentions the latest certifications and Intel power-on standards, but the listing doesn't spell out which ones, so check the specification sheet.

The AC input range is listed as 100 to 240 VAC at 50/60 Hz, so the unit is designed to work on mains power in many regions.

Size

EVGA calls the unit a compact 150mm model. The listing gives its dimensions as about 5.9 x 5.9 x 3.4 inches and its weight as about 7 lb. A short body leaves extra space for cables behind the motherboard tray and suits smaller cases, though your case should list its maximum supported length.

Who it suits

A 1000W unit is designed for systems with a powerful graphics card and processor, or for builders who want room to add parts later. A PC with modest parts may not need this capacity. Adding up your parts' power needs is a more reliable guide than choosing the highest wattage.

What to check before you buy

• Total power need: add up the demands of your processor and graphics card, with some headroom.
• Connectors: confirm that the cables suit your graphics card, especially if it needs a newer 12-pin connector.
• Case fit: compare the 150mm body, plus cable space, with your case's limits.
• Cables in the box: check that the number of SATA, peripheral and PCIe connectors suits your drives and cards.
• Installation: switch off and unplug the unit before opening the case, and follow the manual and local electrical codes.
• Warranty terms: EVGA lists a 10-year limited warranty; read the current terms.

The short version

• A 1000W, fully modular ATX power supply from EVGA.
• 80 Plus Gold, with 91% efficiency or higher under typical loads.
• 135mm fluid dynamic bearing fan and an Eco mode for quiet running.
• 100% Japanese capacitors and an active clamp DC-to-DC design.
• Compact 150mm body and a 10-year limited warranty, as EVGA lists it.

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