XFX Black Edition 850w ATX PSU

Conclusion

XFX Black Edition 850wConclusion
 
If you can excuse the slightly distasteful pun, XFX have entered the PSU market with a bang! During the traditional load tests the unit performed excellently, managing between 88-90% efficiency with extremely tight voltage regulation that stayed below 1% fluctuation on the +3.3v and +5v rails, and only hit 1.31% fluctuation on the +12v rail. Simply excellent. Add to this the low output temperatures and silent operation and the XFX Black Edition has all the ingredients to be a worthy competitor of Corsairs HX850w unit.
 
Attention has also been paid to the appearance of the unit, with some highly unique styling that has transformed what could have been a standard oblong box into something you’d expect to see on the set of an alien sci-fi movie. The lime green accents such as the fan, modular connectors and logo stickers absolutely scream XFX, and when combined with a pair of similar styled Black Edition graphics cards will undoubtedly look the part. However, I can’t help but think that XFX could have been a little more creative with the modular cables, which have been treated to just the usual black sleeving affair. On the other hand this could be the saving grace for people who want to complete an XFX trilogy inside their PC without overdosing on citrus.
 
Right about now I’d probably be contemplating an award such as Editors Choice or maybe Gamers Choice and an almost full-bars score. But unfortunately as I’ve already covered on the previous page, the XFX Black Edition 850w does have a a tendency to go ‘pop’ under certain load conditions. These conditions were of course outside specification during the "Max Load" tests where the unit was placed under a load approaching 1000W, but under no circumstances should a PSU of this quality fail in this manner simply because the load is too high. OCP (Over Current Protection) should kick in every time, saving both the PSU from failure and your hardware from being 'zapped'. For this reason alone the Black Edition 850w won't be walking away with any awards today, which is a great shame considering how well it performed in all other areas.
 
Any feedback from XFX will of course be posted at the end of this review.
 
 
The Good
- Borderline 80PLUS Gold level efficiency.
- Silent operation at loads of up to 750-800w.
- Rock solid voltages across all rails in standard tests (1-4).
- Extreme appearance.
- Unique Packaging.
- Great ripple results.
- 5yr Warranty.
 
The Mediocre
- Efficiency drop to 82% in cross-load test 5.
- Out of spec -12v output in cross-load test 6.
 
The Bad
- OCP failed to power off unit in max-load test 7 before it died with a bang.
 
 
Discuss this review in our forums.
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Most Recent Comments

12-10-2009, 09:05:28

tinytomlogan
Have to say that video is great for suspense! Rather shocking for such a big brand though. Be interesting to see if they say anything.

Still think that people will buy this no matter what just because it looks good and has XFX written on it.Quote

12-10-2009, 09:12:02

I Hunta x
ok is it just me or does the top of that psu look amazing?

the bang want that big in the video tho =\ i was expecting the camera to wobble and someone nearly cacking them self

other than that good review from the quick scim i gave it for now.Quote

12-10-2009, 09:42:09

JN
Quote:
Originally Posted by name='I Hunta x'

the bang want that big in the video tho =\ i was expecting the camera to wobble and someone nearly cacking them self
You can always turn up your volume for a more authentic reproduction. Unfortunately all the "cacking" was done when the first unit went bang right as I had my ear pressed against it while listening to the fan noise.Quote

12-10-2009, 11:27:57

VonBlade
Jim = Mr Calm.

Couple of cracks and he doesn't jump, flinch, move, gasp... nothing.

If BFG and XFX have taught us anything, and to a certain extent the woeful air performance on Corsairs 800D, it's that companies should stick to doing what they do best.Quote

12-10-2009, 11:54:34

monkey7
Quote:
Originally Posted by name='tinytomlogan'
Have to say that video is great for suspense! Rather shocking for such a big brand though. Be interesting to see if they say anything.

Still think that people will buy this no matter what just because it looks good and has XFX written on it.
And has high efficiency + good rippling as long as you don't let a madman with heavy testing equipment near it Quote
Reply
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