Jou Jye BW-B620JL 620W Power Supply Review

Cabling Arrangement

Jou Jye gives you a decent list of connectors for a 620W power supply. We say decent because as a single power supply it is a great list, but not so good when paired with a second unit. The main issue here is that you have two PCI-E 6+2 pin connectors, six Molex, nine SATA and one FDD. Add a second unit and you've got 1240W of power with only four PCI-E 6+2 pin connectors and enough peripheral cables to power all the hard drives and optical drives on your city block.

Most who are interested in a unit like this are going to want to power multiple GPUs, especially since you don't need to chain together 10+ hard drives in RAID to get plenty of storage space. Perhaps modular cables would help alleviate this problem a bit.

Rail distribution is kept simple with a single 12V rail. Note that this differs from the I/O specification label. Trace the rails and you'll find this is a single rail PSU. Someone should tell Jou Jye that just because the 12V wires terminate in multiple places on the PCB, that it doesn't necessarily make it a multi-rail PSU.

A Look Inside

Opening up the unit, some regular readers will notice the familiarity. It looks almost identical to the Antec HCG-620. It looks like Delta is making power supplies for Jou Jye.

There is a single Nippon Chemi-Con capacitor on the primary side.

Nippon Chemi-Con capacitors are found on the secondary side as well.

Jou Jye chose the ADDA 140mm fan, model AD1212HB-A71GL to cool the BW-B620JL.