350-450W Roundup: 11 Cheap PSUsby Martin Kaffei on July 3, 2012 1:30 PM EST
Corsair CX430 V2 430W
Corsair was using Seasonic units for the majority of their products, but most of their cheaper offerings are now manufactured by CWT. The CX430 V2 is the lowest-end unit from Corsair, which still has enough quality to satisfy the customers. It comes in matt black and has a large Corsair logo on the fan grille. The back is perforated with hexagonal-shaped openings and a small power switch can be found above the power input.
The contents of the package are what you'd expect. You get the required four screws and power cord, naturally, along with some cable ties, a user manual with product data and safety references. Corsair prefers a large single-rail 12V design, rated at 28A (336W). The reason for the high rating of the 12V rail is the high power consumption of CPUs and GPUs.The small rails are rated at 20A each with a combined output of 120W; that's comparatively weak compared to some older PSUs, but since modern PCs usually don't need much from the low voltage rails, this will hardly be a problem.
A 120mm Yate Loon fan cools these units. It has a ball bearing and seven sharp-edged fan blades. A plastic guard blocks part of the intake area to help direct airflow.
|Cables and Connectors|
Connector type (length)
|Main||1x 24-pin (45cm) fixed|
|ATX12V/EPS12V||1x 4+4-pin (50cm) fixed|
|PCIe||1x 6/8-pin (50cm) fixed|
3x SATA (ca. 50, 65, 80cm) fixed
3x SATA (ca. 50, 65, 80cm) fixed
|3x HDD, 1x FDD (ca. 50, 65, 80, 95cm) fixed|
The inside reveals a typical CWT design with three heatsinks, two for the primary side and the third for the secondary side. Three of the filtering caps are attached to the other side of the AC jack. The internal layout is pretty typical using a two-transistor forward converter, with a minimal number of components in the transient filtering. The primary cap is made by Samxon--just like the secondary ones. They are a slightly lower end vendor CWT uses for these units.
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arthur449 - Tuesday, July 3, 2012 - linkI'm not sure how hard it would be, but would it be possible to write up a review of a few PicoPSU adapters? I've considered a few for low-power builds, but I've always been wary of the little no-name sealed plastic bricks that come with them.
Then again, I don't know if Anandtech would be the ideal audience for such a review.
clarkn0va - Friday, July 6, 2012 - linkDitto. I own a wide variety of PicoPSU and other related electronics from mini-box/ituner, as well as some similar Antec DC-DC products. I would love to see more of this stuff reviewed, with some emphasis on the "black box" bricks that can be had for very little outlay in some cases.
freezervv - Tuesday, July 3, 2012 - link> I'm not sure how hard it would be, but would it be possible to write up a review of a few PicoPSU adapters?
It's difficult to find information on suitable adapters, and it's kind of a critical part of the build given how little PicoPSUs filter their input (afaicr).
Machelios - Tuesday, July 3, 2012 - link
I noticed that the enermax PSU that you reviewed is not the same as the one on newegg. In the gallery, (this pic:http://www.anandtech.com/Gallery/Album/2123#7) the model is ENP450AWT.
However, you say you are revieweing the ENP450AST, which is the one available on newegg.
The ENP450AST (newegg link:http://www.newegg.com/Product/Product.aspx?Item=N8... lacks the 80 plus bronze certification and has less sleeved cables as far as I can see.
So, it seems you have reviewed the wrong psu...
Machelios - Tuesday, July 3, 2012 - linksorry, the link was wrong for the psu on newegg
here is the right one: http://www.newegg.com/Product/Product.aspx?Item=N8...
Martin Kaffei - Tuesday, July 3, 2012 - linkI love those manufactureres with hundreds of versions. Ironically they didn't want me to review their Triathlor 385W as it is "not available in the US".
The AST is also a good PSU.
However, pricing will be a problem now.
Thank you for this correction.
Flashfir - Tuesday, December 1, 2015 - linkAST is also a good PSU eh? I trust you know what you're talking about - care to elucidate? I shared this on this thread in slickdeals and your post/comment about the Enermax will get some attention there so your comments would be much appreciated by many ;)
augiem - Tuesday, July 3, 2012 - linkI find that the one crucial point missing in ALL computer hardware reviews is long term reliability. It's understandable given the circumstances, but I wish there were some way for hardware reviewers to do some kind of simulated stress testing. I have found over the years, especially with motherboards and power supplies, that the reviews that award winners based on their feature set don't always do well long-term. The only way I've found to get an indication of this factor is through user reviews, which is not a perfect either as most reviews posted a few months past initial purchase are negative. Still it gives me a little better way to compare.
I personally have had quite numerous failures 6 months+ out with excellently reviewed hardware, especially when its a lesser-known brand or a newcomer to the field.
piroroadkill - Tuesday, July 3, 2012 - linkYou can get some idea from the quality of components used, the soldering, and so on..
But yes, a soak test would be nice.
HardOCP does something close to this - their Torture Test - 8 hours @ 80% load, which is quite a nice test. Maybe something like this but for a bit longer?
Maybe with a high ambient temperature.. Maybe some power cycling during the test (to full cold, then back on again) to test cold joints and how well the PSU copes with heat cycling.
I don't know, just some ideas. But yeah, these tests would quite a bit of time.
arthur449 - Tuesday, July 3, 2012 - linkLook at the product's warranty and its terms and conditions. Pay close attention to how long the warranty lasts on replacements. A 5-year warranty doesn't mean much if they're only guaranteeing the replacement for 90-days. The longer a company is willing to allow easy and (mostly) free replacement of the product, the longer they're guessing it should last. Divide product price by the number of years the company allows hassle-free replacement for a rough estimate of long term value.
Of course, this doesn't apply to new brands that simply haven't been around for very long, or brands that are simply rebadging cheap 'no-name' vendors.