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SilverStone SFX 650W Gold Power Supply Review

Author: Lee Garbutt
Manufacturer: SilverStone

Specifications and Packaging

Specifications

The SX650-G power supply is rated for a combined, continuous output power of 650 watts at 40°C. The PSU incorporates a single +12V rail that can deliver up to 54.2A (650W).  The PSU includes universal AC line input (automatically adjusts the AC line voltage) and active PFC, which makes the unit more environmentally friendly to the local power grid.  

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SilverStone SX650-G PSU Specifications:

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(Courtesy of SilverStone)

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Packaging and Parts

The SilverStone SFX Series 650W Gold power supply arrived packed inside a standard retail box showcasing the unit’s features and specifications.  

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In addition to the power supply, the box contains a power cord, mounting screws, a User Manual, Product Manual, and seven modular cables (plus a 4-pin Molex to HDD adapter).

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The flat ribbon-style modular cables handle the power distribution (see table above for more detailed lengths and connector count).

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December 3, 2017 | 11:27 AM - Posted by Smitty (not verified)

Thanks for the review. I'm a customer looking to purchase this SX650 or the Corsair SF600 and I noticed you have reviewed both units. However, there seems to be little direct comparison in your review between the two, even though they are direct competitors.

1) Is the fan in the Silverstone removable without cutting and soldering wires? It doesn't appear so but just looking to confirm.
2) It seems the SX650 runs hotter and louder than the SF600 based on comparing the two tables between reviews. However, this is a test where you are recycling hot air back into the intake. Many cases are designed where the PSU intake is bringing in fresh/cool outside air. Do you think this will affect the temperatures in a different way?

December 3, 2017 | 11:28 AM - Posted by Smitty (not verified)

One additional question:
3) The Corsair cables in the SF600 are often accused of being stiff and difficult to work with. Based on your review the SX650 have similar length and variety of cables. Are they also 'too stiff' or are they more flexible and easier to route?

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