Seasonic X-Series XM2-1250 Power Supply Review
A Detailed Look
The Seasonic X-Series XM2-1250 power supply enclosure features a scratch-resistant black matte finish with gold trim/lettering and measures 190mm (7.5”) deep.
The back panel includes a power receptacle and master On-Off switch set into an open honey comb grill.
The new XM2-1250 uses a high quality 120mm Sanyo Denki San Ace 120 fan (9S1212H403) for cooling. The fan is controlled by an improved Hybrid Fan control IC, which reduces fan hysteresis (how frequently the fan switches on and off). At 25°C ambient temperature the fan turns on when the load rises above 30% (±5%) and turns off when the load drops below 20% % (±5%). Due to this lag in response the fan switches on and off less frequently, which reduces power loss in Fanless and Silent Mode.
The XM2-1250 comes with fifteen nicely labeled sockets on the front panel for connecting all the modular cables.
The bright blue label is designed to draw your attention to the Fan Control mode selector switch. You can select between Hybrid (S3FC) and Normal (S2FC) fan control modes. The Hybrid Silent Fan Control provides three operational stages: Fanless, Silent and Cooling Mode. The selector switch allows for manual selection between the Seasonic S2FC (fan control without Fanless Mode) or S3FC (fan control including Fanless Mode).
(Courtesy of Seasonic)
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