Apevia Galaxy ATX-GX1000W 1000W 80+ Gold Power Supply: specs and fit

The Apevia Galaxy ATX-GX1000W is a 1000W semi-modular power supply for desktop PCs. It is built for gaming systems with a powerful graphics card and several drives, and carries an 80+ Gold efficiency certification. One detail matters more than most: Apevia states plainly that it has no PCIe 5.0 and no Gen 5 12VHPWR connector.

What 1000W and 80+ Gold mean

The wattage is the total power the unit can supply. Most PCs draw well below that in daily use, and a power supply typically runs most efficiently somewhere in the middle of its range, so higher capacity suits builds with a demanding graphics card and processor, or room to add parts later.

The 80+ Gold certification is an efficiency standard. It means the unit converts mains power to the DC power the PC uses with at least a set efficiency at defined loads, which wastes less as heat. The Gold tier sits above Bronze and Silver and below Platinum and Titanium.

Single 12V output

Apevia lists a single 12V output rated at 83.3A, with +3.3V and +5V rails at 20A each, -12V at 0.3A and a 3A standby rail. On modern PCs the processor and graphics card draw mostly from the 12V line, so a single, large 12V output lets that power be drawn wherever it is needed instead of being split across separate limited rails.

Semi-modular cabling

In a semi-modular design, the essential cables, usually the main motherboard cable, are fixed, while others plug in only when needed. This keeps unused cables out of the case and helps airflow. Apevia lists these connectors:

• 1 x 20/24-pin main power
• 2 x P8 (4+4-pin) 12V CPU power
• 4 x SATA and 4 x 8-pin (6+2) PCI-E
• 4 x peripheral (Molex)
• 1 x floppy

Four PCI-E 6+2-pin connectors are enough for most graphics cards that take 8-pin power, including many dual-card layouts. There is no 12VHPWR cable, so a card that needs that connector would need an adapter, if one is supplied with the card.

Cooling and protections

The unit uses a 135mm black fan that Apevia says is thermally controlled, so it adjusts its speed to the load. Larger fans can move air at lower speeds, which is the usual route to quieter running. Listed protections cover short-circuit, over-voltage, over-power and under-voltage conditions, with a double forward converter design and Japanese capacitors.

Standards support

The listing says it supports ATX 12V 2.3 and mentions dual- and quad-core CPUs, SLI and Crossfire, and Haswell. That points to an older standard than the newer ATX 3.0 and PCIe 5.0 power supplies, which is consistent with the note in the title.

Who it suits

It suits a gaming or workstation build with a graphics card that uses standard 6+2-pin connectors, where the builder wants a 1000W Gold unit with partial cable management. It is less suited to a new high-end graphics card that needs the 12VHPWR connector natively.

What to check before you buy

• Connectors: match your graphics card's power inputs against the PCI-E leads listed.
• Size: it measures about 6.2 x 5.9 x 3.4 inches, so check your case's power supply space.
• Wattage: add up your components' recommended power rather than guessing.
• Cable count: make sure there are enough SATA and peripheral leads for your drives.
• Installation: follow the manual and local electrical guidance, and keep the case closed when the PC is powered.

The short version

• A 1000W, 80+ Gold, active PFC ATX semi-modular power supply.
• Single 12V output of 83.3A and a 135mm thermally controlled fan.
• Four PCI-E 6+2-pin connectors, but no PCIe 5.0 or 12VHPWR connector.
• Short-circuit, over-voltage, over-power and under-voltage protections.

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