FSP Mega GM 1200W power supply review: An in-house FSP platform that quietly overshoots its own Gold label
The FSP Mega GM 1200W power supply features Platinum-grade efficiency, an all-Japanese capacitor set, and a compact footprint that is rare on a 1200W unit.
FSP is a large power-supply manufacturer with roots in Taiwan, established in 1993 by a joint venture of Fortron/Source of the United States, Sparkle Power International, and Powertech Systems. Intel early supported FSP during the ATX standard development, and it currently produces units for system integrators and consumer brands.
The company is known for its own, in-house platforms rather than contracted designs. The Mega GM 1200W is the flagship product of this series, boasting a 1200W rating and built around an ATX 3.1 and PCIe 5.1 brief. The supply is designed to handle native 12V-2x6 delivery, supporting 200% transient power excursions, and FSP's proprietary MTLC (Micro Tolerance Load Control) regulation scheme.
It is positioned as a Gold-class product, but the testing reveals it to perform at a higher tier. Arriving in a well-designed, black box, the Mega GM 1200W features a compact, 150 x 150 x 86 mm chassis that is ideal for mid-tower cases. The cooling fan is a 135 mm Power Logic PLA13525S12M, known for its reliability and low noise performance.
The fan operates in semi-fanless mode when required, providing user control and reducing noise levels.
Written by urgent.news from Tom's Hardware's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
