MODTHEBOX.COM - Canada's Premier Case Modding Source - Reviews - Scythe Stealth Semi-Fanless Power Supply Review

MODTHEBOX would like to thank James from Scythe USA for sending the Stealth Semi-Fanless Power Supply for review.

The Scythe Stealth Semi-Fanless Power Supply is a self contained unit that incorporates FFCS (Flexible Fan Control System) along with an anodized aluminum housing. The Scythe Stealth is rated for 450 watts and is compatible with 24-pin and 20-pin ATX connectors ATX12V version 2.01 for PCI-Express support. Here is a list of specifications taken from the Scythe USA website:

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The Scythe Stealth Semi-Fanless Power Supply was shipped in a blue coloured corrugated box with manufacturer's logos and images printed on all of the sides. The back portion of the packaging includes product specifications and industry regulation standards. The packaging inside the box was good and consisted of the PSU itself and all the PSU Molex connections bundled on the right hand side.

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The Stealth Semi-Fanless Power Supply does include a small assortment of accessories which includes a 20-pin to 24-pin ATX power adapter as well as a shielded power cord. Absent from the package was any sort of reference material or users guide. A trip to Scythe's North American and European corporate websites revealed very little information on this product.

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Out of the box, the Scythe Stealth Semi-Fanless Power Supply has an aesthetically pleasing design. The exterior of the PSU has been encased in a blue anodized aluminum chassis. The thick aluminum chassis has small fins incorporated into the design, which allows this unit to act as a heatsink and provide additional cooling for the PSU. The unit measures approximately 150mm (W) × 160mm (D) × 85mm (H) and is slightly heavier than most steel based power supplies on the market. By default this unit includes a single 80mm cooling fan which is positioned on the front of the unit for optimal cooling. The left side of the Stealth includes a power rating guide which denotes that this particular unit is rated for 450w watts. This guide also provides detailed information on the rated amperage and voltage across each of the wired PSU lines. The rating specified on this particular review unit is as follows:

AC Input	200V/240V 6A/3A 60/50Hz
DC Output	+3.3V	+5V	+12V1	+12V2	-12V	+5sb	Total
DC Output	28A	35A	14A	18A	0.5A	2.0A	450W

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The rear portion of the Scythe Stealth Semi-Fanless Power Supply has all the standard features found on most PSU units but incorporates a large black coloured aluminum heatsink for passive cooling and an 8-position rheostat knob which controls Scythe's Flexible Fan Control System (FFCS). The FFCS is a unique system that provides six different temperature configuration modes as well as the ability to adjust fan RPM levels. In Mode 1 fan operation is turned off while Mode 2 operates at 50°C with a fan speed ranging from 1100RPM - 1300RPM. In Mode 3 at 60°C fan operation ranges from 1150RPM - 1300RPM while Mode 4 operates at 70°C with fan speed at 1200RPM - 1300RPM. Finally, in Mode 5 at 80°C fan operation ranges from ~1300RPM while Mode 6 is configured for automatic fan speed adjustment from 850RPM - 1300RPM. Next to the rheostat knob is a LED that provides a visual confirmation that the fan is in operation.