Power Supply Review

Gigabyte's 1000GM PG5 PSU tested: Platinum efficiency, T-Guard connector protection

Tom's Hardware reviewed Gigabyte's Gaming 1000GM PG5 1000W power supply, built by OEM HEC, finding it achieves Platinum-level efficiency despite carrying only a Gold badge. The unit uses all-Japanese capacitors, a 135mm fluid dynamic bearing fan, and includes T-Guard, a thermal monitoring feature for its native 12V-2x6 connector that can cut power if overheating is detected. It ships with a ten-year warranty and costs $170.

tomshardware.com · 2026-09-27

Tom's Hardware tests Gamemax RGB PRO 750G, finds pricing out of step with rivals

Tom's Hardware's review of the Gamemax RGB PRO 750G, a 750W ATX 3.1/PCIe 5.1 modular power supply, found 90.8% average efficiency at 230 VAC and good ripple performance from its Sohoo-made platform. However, at $105 it costs more than comparable units like the MSI MAG A750GL and Corsair RM750e, despite offering what the review calls a mediocre overall package aside from its RGB lighting.

tomshardware.com · 2026-09-25