In Win Classic Series C 900W Review

Performance Analysis

As is usually the case with today's PSUs, performance across the board is solid, and the In Win C 900W easily passed all of our stress testing, as it should. Looking at voltages, the 12V and 5V rails never deviate by more than 2 percent, and almost all results are within 1 percent of the nominal voltage. The 3.3V rail varies a little more, but still never beyond 3 percent.


The efficiency numbers are also solid and the In Win C 900W lives up to its Platinum rating. That said, it is pipped by other Platinum-rated PSUs with similar wattages, so best-in-class here it is not. It's very good in the low load testing as well, but still beaten by the SilverStone Strider Platinum 1,000W.

The ripple results are, taken by themselves, excellent. However, Be Quiet! and SilverStone both demonstrate that even tighter voltage control is possible in similar units.

In terms of noise output, In Win's PSU holds up pretty well. The fan, while always spinning, cannot readily be heard when load is below 600W. Temperature wise, it does get a touch warmer than the other tested PSUs, but again you don't really have anything to worry about.

Conclusion

Overall, the C 900W is a solid unit that's not spectacular in any one regard, apart from looking better than average and having a pretty decent warranty attached to it. While electrical performance isn't chart-topping, it still ranges from very good to excellent in every single result and, honestly, who needs more than that? The differences measured are only likely to irk the most obsessed enthusiasts. With a cable set that's fitting for the wattage, the C 900W is clearly a very capable power supply. For its capacity and efficiency, the pricing is a touch steep but not too far off the ball. As such, we're happy to recommend it for a new overclocked SLI or CrossFire setup if it meets your needs and suits your taste.