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SilverStone Strider Platinum 850W Power Supply Review

Introduction and Features


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SilverStone Technology Inc. continues to focus attention on providing compact power supply solutions. Earlier this year we looked at the SilverStone SX700-LPT, which packed 700 watts into an extended SFX chassis. In this review we are going to check out SilverStone’s ST85F-PT, which packs 850W into a compact ATX enclosure. While the typical 850W ATX power supply measures 180mm (7.1”) deep, the Strider Platinum Series 850W unit is housed in a 140mm chassis (5.5”). This results in a power density of 471W per liter.

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The Strider Platinum Series now includes four compact models, the ST55F-PT (550W), ST65F-PT (650W), ST75F-PT (750W) and ST85F-PT (850W), which SilverStone claims are the smallest fully modular ATX power supplies with 80 Plus Platinum efficiency. All of the Strider Platinum Series PSUs are designed to provide quiet, reliable operation. The 120mm cooling fan incorporates a Fluid Dynamic Bearing (FDB) and an intelligent fan control permits fanless operation at low power. Overall performance is optimized with tight voltage regulation and low AC ripple on the DC outputs.

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SilverStone Strider Platinum Series Key Features:
•    550W, 650W, 750W and 850W DC power output
•    Compact design with a depth of only 140mm for easy integration
•    High efficiency with 80 Plus Platinum certification
•    100% Modular cables
•    Intelligent semi-fanless operation
•    Quiet 120mm cooling fan with Fluid Dynamic Bearing
•    24/7 Continuous power output with 40°C operating temperature
•    Strict ±3% voltage regulation and low AC ripple
•    Dedicated single +12V rail
•    Universal AC input (90-264V) with Active PFC
•    DC Output protections: UVP, OVP, OPP, SCP, OCP, and OTP
•    Dimensions: 150mm (W) x 86mm (H) x 140mm (L)
•    5-Year warranty
•    MSRP : $159.99 USD (850W model)

Please continue reading our review of the SilverStone 750W Platinum PSU !!!

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Here is what SilverStone has to say about the new Strider Platinum Series PSUs:  "As desktop computers continue to advance toward ever more efficient and smaller designs, SilverStone is helping to drive the efficiency movement by releasing the Strider Platinum Series of power supplies. Created to be the smallest fully modular ATX power supplies with 80 Plus Platinum efficiency, they are also incredibly quiet with the ability to run in fanless mode. If the loading condition is below 20%, the fan in the power supply can remain off for silent operation during idle or low powered computing activities. Other great features inherited from previous Strider series includes ±3% regulation, powerful single +12V rail, 24/7 continuous power output, and multiple PCI-E cables. For those looking to build highly efficient systems in small footprints, the Strider Platinum is definitely the best choice.

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September 10, 2016 | 06:14 AM - Posted by Kraaketaer

Did SilverStone send you the PSU for review, or did you request it? If the latter, I'd say you missed an opportunity by going for the highest capacity one of the lineup. The 550W is far more interesting, as it's one of the lowest capacity Platinum units out there, and a perfect fit for today's high end GPUs.

September 10, 2016 | 10:16 AM - Posted by Lee Garbutt

The 850W model was sent to us for review as SilverStone wanted to showcase the highest power in the smallest package. However, we may follow up with a review of the 550W unit. Its always nice to have the opportunity to check out more than one unit in a new series.

September 11, 2016 | 07:14 AM - Posted by Kraaketaer

That would be great, hope you are able to get one in for review.

Of course I see SilverStone's point (850W Platinum in a smaller package than most 5-600W units is not bad at all), but high powered PSUs are less and less relevant in today's PC builds. 3,5" HDDs are slowly dying, multi-GPU was never really a big thing, and is quickly falling to the wayside, and >95W CPUs with actual performance to match are reserved for those with too much money to spend (although Zen might change that).

SilverStone should be lauded as one of the first PSU makers to make <700W Platinum units, but we still had a long way to go. I'm still waiting for something compact, modular and high efficiency in the 3-400W range. You can barely get 80+ Gold below 500W today.

September 11, 2016 | 06:31 PM - Posted by John H (not verified)

It's *possible* DX12 may cause a resurgence in multi-GPU setups.. But agreed we need more gold/platinum small units.

My home (VM) server is running well with a Seasonic 360W 80plus Gold..

September 18, 2016 | 10:49 AM - Posted by Kraaketaer

Sure, it's possible, but still highly unlikely. After all, DX12 multi-GPU support is as reliant on developer support as DX11 ever was, just easier to implement (just not as reliant on driver profiles). And as always, it works on a game-to-game basis, with many lacking support. Not to mention that most PC gamers buy a single ~$200 GPU, and can't afford multiple. Sure, the potential for improved scaling and efficiency is definitely there. I just don't see multi-GPU having a significant resurgence.

Plus, you can easily run two GTX 1070s or RX 480s off a 600W PSU. Probably even less.

Also, there is no lack of 800W+ (heck, even 1200W+) PSUs with good efficiency today. That market is well provided for already. It's time to provide better efficiency to the mass market.

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