|Item model number||220-B3-0550-V1|
|Item Weight||4.2 pounds|
|Product Dimensions||5.9 x 3.4 x 5.9 inches|
|Item Dimensions L x W x H||5.91 x 3.35 x 5.91 inches|
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4-Year PC Peripherals Protection Planfrom SquareTrade
- Coverage for product breakdowns and malfunctions
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EVGA 550 B3, 80+ BRONZE 550W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply 220-B3-0550-V1
|Sale:||$71.20 & FREE Shipping|
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- EVGA 550 B3 - "Bronze 3volved"
- EVGA ECO Intelligent Thermal Control System eliminates fan noise at low to medium loads
- 80 PLUS Bronze certified, with 85% efficiency or higher under typical loads
- Fan Size / Bearing: 130mm Long Life Sleeve Bearing
- 5 Year Warranty and unparalleled EVGA Customer Support
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|Sold By||MegaRetailStore||Amazon.com||Amazon.com||Amazon.com||Amazon.com||Brooklyn Parkway|
|Item Dimensions||3.35 x 5.91 x 5.91 in||5.91 x 5.51 x 3.35 in||5.91 x 5.91 x 3.35 in||5.91 x 5.51 x 3.4 in||5.9 x 5.51 x 3.38 in||5.91 x 5.51 x 3.35 in|
|Item Weight||4.2 lbs||4 lbs||5.7 lbs||4.25 lbs||3.44 lbs||4 lbs|
EVGA Bronze power supplies have become synonymous with industry leading stability, performance, and value. With the B3 power supplies, EVGA now adds fully modular cables, the ECO Intelligent Thermal Control System, even tighter voltage regulation (<2%), and a Long Life Sleeve Bearing Fan for ultra quiet performance with an increased lifespan. Even more impressive, these power supplies continue to get shorter compared to its predecessors. Backed by EVGA's 5 Year Global Warranty, the EVGA B3 lineup will give you peace of mind for years to come. Join the evolution of the Bronze age.
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I offered to fix it myself, but they confirmed that it would void the warranty. Okay. I guess I'll try to get it replaced then... *fingers crossed* Well, to my surprise, they offered to replace it without me even asking. How often do you think a company replaces an entire product (given the limitations of a warranty) due to fan noise? My guess is not very often, so this really impressed me. What impressed further was that EVGA even paid for shipping the replacement to me AND provided prepaid shipping for my defective product.
As long as EVGA keeps up customer service like this, I will be a loyal customer. The replacement is working just great and no bird is stuck in it yet.
I decided to open this Evga 450BT and check is circuited, I was surprised by what I found.
The unit uses common forward topology (check this out in order to understand this review better).
Starting on the mains, the unit has a Ceramic fuse right behind the power switch, I can't read its rating, but hey nice to see a ceramic fuse instead of a glass one. Altough it is very badly placed and can't be replaced easily, you will need to desolder the smaller board behind the power switch in order to change the fuse.
Moving on we have 4 Class X2 caps and 7 class Y caps, a bit overkill, we also have 2 common mode inductors at the input, this is for EMI suppression, we also have a varistor after the fuse, (can't read its rating as it is inside a heatshrink, although it is very likely 275V AC), what this does it that if the mains voltage gets too high, the varistor shorts the mains and opens the fuse,
Now we get to the main bridge rectifier, it has no printing on front, this is really odd (it might be facing the heatsink), however it isn't much to worry about, the high voltage side of these PSU's operates with low currents.
After the rectifier we have a 0.47uF polypropylene cap (again more EMI protection), along with the main filter cap, which is a 400V 270 uF teapo cap rated for 105 degrees, the main cap comes after a relay and a thermisistor, the thermisistor is there in order to reduce the high start current of the main capacitor, kudos to evga for doing this. Theres also a really huge inductor in series which is likely used for its active PFC.
The main switching transistor are/is a 5R280CE, these are also with the bridge rectifier heatsink and are rated for 11 Amps are 100 degree centigrade, super overkill considering that these will at most have 4 amps thru if the mains voltage gets as low as 100V AC (At 220V will be half the current).
The secondary uses two S30M60C in parallel for the 12V, each are rated for 30A at 100 degrees (giving 60A total at 100 degrees), again more overkill for a unit rated at 35A for 12V. All secondary caps are also teapo 105 degree.
The controller chips are a FAN4800C and a EM8564A, on the secondary we have a GR8323. Communication between secondary and primary is done thru another transformer instead of a optoisolator, interesting choice considering that the later is as good as a transformer and cheaper.
The output wires are all black, 18 gauge and rated for 80 degrees.
Overall the unit is very good ans should be perfectly capable of delivering its rated wattage, and even a bit more depending of how the over current protection is tweaked. The level of overkill of this unit is something you would expect of a unit worth several times the value of this one.
Edit: The main bridge rectifier is a GBU806 (had to remove the heatsink), this part is actually used in the Evga 430 without heatsink and passed all testing done by jonnyguru on his review of that PSU.
As stock power supplies fail and only last around 5 years- they can easily destroy a computer. This is a great choice for an upgraded power supply. to keep your computer running for years on end. I will buy again.
Overall, I'm pretty happy with this unit. It is functioning fine and solved some stability issues I was having (I'm guessing the old PSU was acting up in general before it completely went out). It's semi-modular, meaning that the cables for the motherboard and one video card are permanently attached, which is mostly fine as nearly everyone will need those.
It was a little disappointing in that they don't include cables for all the plugs: there are 2 PERIF plugs, 2 VGA, 1 CPU, and 2 SATA, however they only include 1 PERIF, 2 SATA, and 1 VGA cables. If you want to use the additional plugs you'll need to buy additional cables. That wasn't a problem for me as the included cables were sufficient for all of my devices (barely), but if you do end up buying additional cables be VERY careful as they're not universal between power supplies - often even within a manufacturer's own product line.
Other than that though, the unit is performing great, and it even includes a few nice to have "goodies" like a jumper to force the unit on for testing, screws, and velcro cable wraps.