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Riotoro Enigma 850W Power Supply Review

Author: Lee Garbutt
Manufacturer: Riotoro

Specifications and Packaging

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The Riotoro Enigma 850W power supply is rated for a combined, continuous output power of up to 850 watts at 40°C operating temperature. The PSU incorporates a single +12V rail that can deliver up to 70.8A (849.6W) on the +12V output.  The PSU includes universal AC line input (automatically adjusts to the AC line voltage between 100 and 240 VAC) and active PFC, which makes the unit more environmentally friendly to the local power grid.  

Riotoro Enigma 850W PSU Specifications:

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(Courtesy of Riotoro)

Packaging and Parts

The Riotoro Enigma 850W power supply arrived packed inside a shrink-wrapped retail box showcasing the unit’s features and specifications.  

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The power supply is protected by two thick foam inserts.

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In addition to the power supply, the box contains a power cord, mounting screws, a very brief User Manual, wire ties, and a package of modular cables.

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(2) 6+2 pin PCI-E cables, (3) SATA cables, and (2) Molex cables

The Enigma 850W power supply comes with a basic assortment of seven modular cables and one 4-pin Molex to 4-pin FDD adapter. (See table above for connector count and cable lengths.)

We like the semi-modular configuration but at this power level we would like to see a second 4+4 pin EPS cable/connector and another pair of PCI-E connectors, preferably on dedicated cables.

March 6, 2017 | 12:03 PM - Posted by Anonymous (not verified)

Is there any PSU with fan(s) capable of evicting the heat equivalent of its nominal power?

March 7, 2017 | 10:47 AM - Posted by Lee Garbutt

Yes, most any enthusiast grade PSU uses a fan capable of exhausting the waste heat generated at 100% load. You might also want to consider how much noise is generated at that level and the quality of the fan. A cheap fan that fails early will most likely take the PSU with it.

March 6, 2017 | 12:55 PM - Posted by Master Chen (not verified)

Literal rip-off of the legendary AX 850 of Corsair's (OEMed from SeaSonic), except this one's worse because it's not fully modular and probably has sub-par chokes.

March 7, 2017 | 11:00 AM - Posted by Anonymous (not verified)

As the reviewer pointed out, the Enigma 850W is made by the same OEM as The Corsair CS850M (not the AX850). And I would say that being semi modular is better than being fully modular. It's not like those 24 pin ATX and 4 pin CPU cables are optional. Not having the extra connectors on the front of the power supply just eliminates potential problems (oxidation, extra voltage drop, etc.) and gives a little more flexibility to the cables for easier routing.

March 6, 2017 | 01:04 PM - Posted by Anonymous (not verified)


A "silver award" for a product that has competition at it's price-point that is fully modular?

Then there is the "suspect quality" of some of the parts used in this device as noted by another more skillful reviewer on another web site.

Lee ought to retire before his "cream puff" reviews short him out.

March 7, 2017 | 12:34 PM - Posted by Anonymous (not verified)

Dude, who pissed in your Wheaties? I have to agree with the Silver award. It seems this power supply has enough good things going for it to earn a little recognition, but not ready for Gold. And as the reader above pointed out being fully modular is not an advantage, it's a disadvantage! I've been working in IT support for over 12 years so I know a little about PCs and power supplies.

The main reason manufacturers build fully modular power supplies is to save labor, which saves them money. It does not offer any advantage to the user. Modular connectors can be soldered on machines but fixed cables require hand soldering. A semi modular power supply offers the best combination of reliability and flexibility.

I for one appreciate the power supply reviews these guys provide and I hope they keep them coming for a long time.

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