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Seasonic PRIME 850W Gold PSU Review

The Seasonic PRIME 850W GOLD supply is an almost identical design to the Platinum versions with gold accenting on the case. The Platinum version is more of a chrome colour scheme.

The PRIME logo on the Gold rated power supply is different to the other ranges – again it is coloured gold. No N shaped grill on this power supply either, with Seasonic opting for plain black.

One side of the unit is home to a big cooling vent, with a power connector and switch at the side.

There is also a switch for Hybrid mode – allowing the fan to be disabled completely when the unit drops to a specific temperature threshold. Seasonic claim the Hybrid Fanless mode works up to:

  • Approximately 50 % (±5 %) of system load at 25 °C.
  • Approximately 30 % (±5 %) of system load at 40 °C.

One side of the PRIME Gold unit is home to all the modular cables. The main M/B connectors are indicated along the bottom of the panel and are clearly labelled. The Peripheral/SATA/Molex connectors are visible in a bank of two and three along the top right side. On the other side are all the CPU and PCI-e connectors in a row of 1, 3 and 2 from top to bottom (6 in total).

This is exactly the same layout as the higher capacity 1000 watt PRIME Gold power supply that we reviewed a couple of weeks ago.

Above we can see the specifications of the power supply. The Model number is SSR-850GD Active PFC F3.

Seasonic PRIME 850W Gold Power Supply
DC Output
+3.3V
+5V
+12V
-12V
+5Vsb
Max Output
20A
20A
70A
0.3A
2.5A
Total Power 100W 840W 3.6W 12.5W
850 Watts

This 850 watt power supply can deliver 70A on the +12V output. This drops from 83A on the 1000 watt version. The amps on the +3.3V and +5V rails drop from 25A to 20A as well.

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