Seasonic X-Series 850W Power Supply Review

1. Introduction2. Seasonic X-Series 850W (Bundle & Cables)3. Seasonic X-Series 850W (External)4. Seasonic X-Series 850W (Internal)5. Seasonic X-Series 850W (Super High Res Gallery)6. Testing Methodology7. Closing Thoughts8. View All Pages

Seasonic are using a very high grade 120mm Sanyo Denki San Ace fan (9S1212F404). This fan uses dual ball bearings to enhance life span and reliability. It is constructed around 7 blades which are sculpted to reduce noise while maintaining a high level of airflow.

This supply uses only a couple of heatsinks, however with the 80 Plus Gold Efficiency rating and the large fan overhead it should be fine.

Seasonic are not skimping on the component grade in this supply. They are using high quality Japanese capacitors throughout, with the primary design using two Nippon Chemi Con caps, rated 420v 390 uF @ 105c.

The design of this unit replaces traditional wired connections with direct pin to port connections. This reduces the heat generated by the wiring which has the subsequent benefit of reducing lost power, ensuring improved voltage. The unit includes Total Power Protection (OPP), Over Voltage Protection (OVP), Over Current Protection (OCP), Short Circuit Protection (SCP), and Over Temperature Protection (OTP).

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