SilverStone Strider Gold 750W Power Supply
Author: Zahn Funk
Editor: Shawn Knight
Date: 02-18-2011
Provided by: SilverStone
Installation / Testing

I'll be installing the SilverStone Strider Gold 750W in a system with the following hardware:

AMD 1090T X6 Phenom II BE
2x2Gb Crucial Ballistix Tracer DDR3-1600
Swiftech H20-320 Edge
128Gb Crucial C300 RealSSD
Icy Dock 2.5" Adapter
1Tb WD Caviar Black
1Tb Hitachi Deskstar
LG 8x BD-RE 16x DVD-RW
ASUS EAH5870 V2 1G
Zalman VF3000A
Cooler Master HAF 932 AMD Edition

There were no problems encountered during installation; all of the modular cables connected fine and were long enough to reach all the hardware. I was able to use the longer 30" CPU/EPS cable without an extension, something I typically need with a full tower case like the HAF 932.

Using a Kill-a-Watt meter, I measured the power usage of the system at the outlet, during both idle and load. To generate the load I used OCCT's power supply test utility, which stresses both the CPU and GPU up to 100%. With AMD Cool-n-Quiet enabled, the CPU reduces clocks and voltages at idle, similar to the power saving mode of the GPU. Thus only 101W is being used when there's very little running in the system, and up to 491W at peak load. Compared to the max continuous rating that SilverStone gives the Strider Gold 750W, around 65% is being utilized. Thus under "typical" load, the system should fall somewhere around that sweet spot of 50% where the power supply will be its most efficient.

With a Fluke digital multimeter, I also took voltage readings at the back of the connector under idle and load conditions. The +12V rail was impressively rock solid, it did not change at all going from idle to load, nor did it fluctuate at all when held at load. The +5V and +3.3 rails did move slightly, the former dropping by .01V and the latter .02V, while fluctuation was kept at a minimum of only .01V when held at load. This is some very impressive performance, much better than we saw with the Strider Plus series.

The Strider Gold series are the first SilverStone power supplies to meet the 80Plus Gold rating for a minimum of 87/90/87% efficiency at 20/50/100% load as certified by third party testing. Although we have no equipment to measure this ourselves, we can compare it to other power supplies like the NZXT HALE90 750W (Gold) and OCZ Fatal1ty 750W (Bronze) in back-to-back testing using the same hardware configuration. As shown in the graph above, both Gold power supplies tie at 8W less than the Bronze at idle, while the SilverStone uses 29W less at load, compared to the NZXT's 35W savings. Given that the SilverStone just barely manages the Gold level with a reported 88/90/87% efficiency, compared to the NZXT's 89/91/89% rating, our unit's test results certainly appear to be right in line.

Let's wrap things up with some final thoughts and conclusion.

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