Chieftronic PowerUp GPX-850FC (850w) PSU Review

Ripple

Overall, and as per one of the main marked features of the Chieftronic PowerUp GPX-850FC, the ripple results are (generally) exceptionally low. We can, therefore, confirm that (overall – see below) the power is being delivered to the rails, regardless of the output/load, in a very clean manner.

In something of mild curiosity, however, we did note that the scores provided in our testing were at their best when this power supply was working its hardest or basically idling. Somewhat unusually, when we began to test the load around the mid-level outputs, the ripple results for the 5V, and more notably, the 12V rail, did get a little more excitable. Why is this strange? – Well, usually results start high and get lower as you reduce the workload.

This would, therefore, suggest that this power supply is perhaps happiest when deploying at its full potential. One thing, however, should be emphasized. Despite this interesting ‘discrepancy’ to the norm in our results, the test scores provided are all massively below the maximum set by EU standards (which is 50). I must admit though, I don’t have a good answer as to why this happened. It’s honestly the first time I think I’ve seen this and it may perhaps be indicative of the choice of main capacitor utilized in this design.