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Jou Jye BW-B620JL 620 Watt Gaming Power Supply (Solo+Dual)

Jou Jye BW-B620JLThe power supply we will be looking at today is the B620JL, a 620 watt unit from their gaming line. The unit is Bronze rated meaning it has, at a minimum, 80% efficiency rating at 20% and 100% loads, with 85% efficiency at 50% load. Jou Jye have met and exceeded these efficiencies, considering it “82Plus”. While there are many power supplies on the market with a Bronze rating, there is something the B620JL has that makes it different from many of the other units on the market. What could this relatively unknown company offer above the rest? Read on and find out, but we’ll give you a hint: it involves two power supplies…

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Jou Jye BW-B620JL

Jou Jye BW-B620JLThe power supply we will be looking at today is the B620JL, a 620 watt unit from their gaming line. The unit is Bronze rated meaning it has, at a minimum, 80% efficiency rating at 20% and 100% loads, with 85% efficiency at 50% load. Jou Jye have met and exceeded these efficiencies, considering it “82Plus”. While there are many power supplies on the market with a Bronze rating, there is something the B620JL has that makes it different from many of the other units on the market. What could this relatively unknown company offer above the rest? Read on and find out, but we’ll give you a hint: it involves two power supplies…

Introduction to the Jou Jye BW-B620JL 620 Watt Gaming Power Supply

Today, we will be taking a look at a power supply from a company that we are not too familiar with; however, a quick Google search changed some of that. The company is Jou Jye which is based in Germany but has head quarter in other companies. Jou Jye is known for their OEM power supplies and hard drive enclosure mostly, but they also manufacturer rack mount enclosures, cooling, network adapter and we even saw a case or two on the site we would like to take a look at.

The power supply we will be looking at today is the B620JL, a 620 watt unit from their gaming line. The unit is Bronze rated meaning it has, at a minimum, 80% efficiency rating at 20% and 100% loads, with 85% efficiency at 50% load. Jou Jye have met and exceeded these efficiencies, considering it “82Plus”. While there are many power supplies on the market with a Bronze rating, there is something the B620JL has that makes it different from many of the other units on the market. What could this relatively unknown company offer above the rest? Read on and find out, but we’ll give you a hint: it involves two power supplies…

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Specifications

  • 620 Watt
  • Supports latest ATX12V v 2.31 standard
  • Universal AC Input (full range) Supports safe and easy plug & play of power supply
  • Active PFC (99% PF typical) Reduces AC line loss and power distortion
  • High Efficiency 82plus Bronze Efficiency up to 87.4%. Green solution to reduce energy consumption, noise and heat
  • Meets EUP 2010 standard Compliant with EUP lot6 at standby & off mode
  • Ultra ventilation (honeycomb structure) & fully sleeved cables Minimizes airflow resistance for excellent cooling performance
  • Safety: CE, FCC, C-Tick, CB, TUV, cTUVus(UL), BSMI

 
Special design for gaming and over-clocking

24/7 at 40°C: gaming grade continuous watts  Non-stop gaming grade continuous watts output at 40°C environment
Multi-link connector (MLC)  MLC has been designed for linking multiple power supplies
NOTE: power supply must be connected to JOUJYE O.C. KIT for multi-link function
Japanese capacitors  Highest component standards for maximum durability and stability,
brilliant performance and reliability
High output ration of +12V rail  Max. 92.9% of total wattage can be used as +12V output
designed  to support extreme gaming hardware

 

Connectors

 

Model

430W

 520W

 620W

4PIN MOLEX

6

6

6

FLOPPY

1

1

1

SATA

6

6

9

ATX 20+4

1

1

1

PCI-E 6+2

2

2

2

EPS 12V 4+4

1

1

1

 

 Model

Output Voltage

Power Range
   +3.3V +5V +12Vcomb -12V +5VSB 
BW-B620JL 80 Max. Load

 24A

 24A

 48A

 0.8A 2.5A620W
 Combined Load

 130W

 576W**

9.6W12.5W 

*total output 620W at 40degC
** 576W is 92,9% of total wattage

Closer look

Before we get this party started we’d like to mention that we did a little research on the B620JL. This began by using the procedure that Hardware Secrets wrote about to determine who is the original manufacturer of a power supply by using the ECOS ID#. The conclusion came out to be a Seasonic model S12 II. A thumbs up for Jou Jye as the Seasonic S12 II did well in several reviews from big sites.

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The tour begins here looking at a nice, clean, medium-gloss black finish. Jou Jye did not go crazy with the designs, logos or graphics but instead just a traditional look.

The top of the unit has the product info sticker which starts with the company’s logo and a complete listing of the unit’s specifications. The most impressive here would be the capability to supply 576 watts across the 12V1 and 12V2 rails, which combined support up to 48A total.

The rear of the housing has the usual honeycomb mesh with typical toggle power switch. The unit support input voltages from 100-240 VAC thanks to it’s Active PFC.

To keep the internals of the unit cool, Joy Jye implemented a 135mm cooling fan. Neither their web site nor the unit offer any numbers on the fan specs.

Unfortunately, the B620 is not a modular PSU, as we can see from the photo below.

All cable extensions are sleeved in black protective webbing, which extends into the enclosure. One feature that makes the B620 a little different from many other power supplies is that two of them can me linked together for added power. Each of the power supplies in the series comes with an O.C. kit, which is simply a set of wires to connect the two units at the ATX connector (via ground, PWR_OK and PWR_ON).

Cable Connections

20/4 Pin ATX

4+4 Pin AUX

4 Pin Molex

SATA

6 Pin PCIe

6+2 Pin PCIe

Floppy

 

Jou Jye BW-B620JL

1

1

6

9

2

1

 

Test Hardware:
Motherboard: ASUS P8P67 Deluxe
Processor: Intel Core i5 2500K @ 4.5GHz @ 1.35v
Ram: Patriot Sector 5 1333 8GB (2x4GB) Dual Channel (9-9-9-24)
Video Card: Dual Radeon HD 5870
HDD: Hitachi 1TB
Power: Jou Jye BW-B620JL 620
Case: Open air
Cooling: Thermaltake FrioOCK

Results

We know that testing a power supply on a loaded system is not the very best way to do so, but you can not overlook real world testing. Other sites have methods that use thousands of dollars in equipment to provide them greater detail. We have a trusty digital multimeter. Those sites and the methods they use should be the true means of determining how good a power supply really is; however, we feel that showing you how it performs under real world conditions is also a valid measure of its performance.

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Conclusion

The Jou Jye BW-B620JL 620W did decently in our simple testing here at Pro-Clockers. The numbers when using just a single unit did drop below the  12V line that we like to see PSU’s stay above when loaded, but it is still within safe ATX specifications. Things improved quite a bit when we added the second power supply to the mix. Not only with the total amount of wattage being effectively doubled, but the 12V rail also improved.

Jou Jye has a good idea with the whole coupling of two power supplies. However, the glaring issue that arises is how many cases are out there with support for the housing of two power supplies? The answer is not many, Jou Jye actually being one of them, and those that do are usually full-size towers.

The B620JL does support a nice range of higher-end graphic cards with its dual 6+2 PCIe connections, but only one card in the rig, otherwise you are left with running two lower powered cards that only require a single 6 pin each. Support does increase to a multi-GPU solution when the second PSU is added. Yet the chances are slim one will decide to add another PSU when adding a second GPU, likely opting to get a single higher watt PSU instead.

We find the B620JL at a couple of online retailers ranging from $90 to $100.

All in all Jou Jye have put out a nice power supply which is equipped with a unique feature. We would like to thank them for providing us with these review samples.

{aseadnetadblock|Seasonic S12II|Seasonic} 

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ProClockers was founded in 2004, and since then we have reviewed thousands of tech products, including motherboards, CPUs, graphics cards, PC cases, cooling solutions and more. Whilst many of the original products we reviewed back then have long bit the dust, we continue working hard to provide unbiased PC hardware and tech reviews.

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