CHIEFTEC CORE BBS-700S Power Supply Review

You are currently viewing CHIEFTEC CORE BBS-700S Power Supply Review

Chieftec Industrial Co., Ltd., a well-known producer of power supply and PC accessories, was established in 1990. Since 1994, ARENA ELECTRONIC GMBH has been the company’s representative on the continents of Africa, the Middle East, and Europe.

Three variants of 500, 600, and 700 W power supplies are available in the CORE series. With one or two top-tier video cards and a potent central processor, such power completely meets the requirements of today’s reasonably productive computers. For testing, we selected the BBS-600S model, which has a 600-watt output power, as the middle member of the family.

Great-efficiency Chieftec CORE Series power supplies are characterized by a very understated appearance; this suggests that all secondary factors were forgone in order to retain a cheap price while keeping high efficiency. Our testing will demonstrate how effective this strategy was.

Packaging of CHIEFTEC CORE BBS-700S Power Supply

The unit’s box is constructed using the colors black and yellow. Even though there aren’t any unique design delights, the counter’s noble color scheme is sure to catch people’s attention. On the box, there isn’t a lot of information about the model; often, there’s just a picture of the power supply, the brand and product series names, and the understated elegance of the 80 PLUS Gold label. Each model in the series comes in the same packaging (a specific modification is marked with a red icon on the end of the box, near the index of the corresponding model).

CHIEFTEC CORE BBS 700S Power Supply 2

The delivery set is fairly basic; the only thing keeping it from being entirely austere are the large paper instructions with high-quality writing, the mounting screws, and the network connection.

The power supply can be used in cases with somewhat tight internal layouts thanks to its standard dimensions of 140 mm x 150 mm x 87 mm.

Most of the brothers in the “golden” efficiency have very unassuming appearances; they typically wear simple black clothing and have a 120-mm fan pointed in the direction of “state personnel.” True, the case’s metal is still thicker than that of PSU Chieftec’s most inexpensive model, but a sizable golden insignia bearing the company’s trademark helps revive the design somewhat.

A label indicating the block’s output settings is located on the underside of the case. An input for the power cord and a power switch are located on the rear panel with a honeycomb ventilation grille.

Specifications of CHIEFTEC CORE BBS-700S Power Supply 

With a 600 W total output power at a 12 V voltage, 588 W, or 98% of the total power, can be transmitted. This is pretty consistent with the capabilities of more expensive contemporary high-performance models. The maximum allowed load on the 3.3 and 5 V lines is 110 W, while the maximum allowed load on the standby power supply is a very standard 2.5 A. Additionally, the model’s appeal is greatly enhanced by the whole range of input voltages, particularly in the event of voltage subsidence in the power supply.

CHIEFTEC CORE BBS 700S Power Supply 3

CHIEFTEC CORE BBS-700S Power Supply is based on the model CWT GPS600S, and the genuine manufacturer is stated right on the label behind the plate with the “gone” layout. There is a 24-month manufacturer’s warranty.


Connecting cablesFixed cables
Maximum load power, W600
80 PLUS CertificationGold
ATX versionATX12V 2.3
Power grid parameters100-240 V, 9 A, 47-53 Hz
Load protectionOVP (OverVoltage Protection)
OPP (Over Power Protection)
SCP (Short Circuit Protection)
Dimensions, mm140 × 150 × 87
Weight, kg1,67
MtBF, hNd
Warranty period, years2
Average retail price60$


The cable system is possibly the most obvious outcome of the cost-cutting strategy used when building the models for this series. Except for the connection with the main 20 + 4-pin power connector, cables with connectors do not unfasten and do not even have a braid.

24 PIN (20+4)1
8 PIN (6+2)2
8 PIN EPS (4+4)1

However, the cables are long enough for medium-sized cases (65 cm for cables with connectors 20 + 4-pin and 4 + 4-pin, and 50 cm to the first connection for the rest) and the wires have a sufficient cross-section of 18 AWG.

Construction and internal parts of CHIEFTEC CORE BBS-700S Power Supply

The PSU’s body is constructed of rather thick metal and is painted black. A 120 mm-diameter Yate Loon D12SL-12 fan with a simple bearing is used to cool the internal components. Since the fan’s nominal speed is a relatively low 1350 rpm, you can anticipate favorable acoustic conditions. To improve airflow inside the power supply housing, a transparent film screen is placed over a portion of the impeller region.

Channel Well Technology (CWT), the original manufacturer of the Chieftec CORE power supply platform, is noted above, and the donor was a group of GPS power supply representatives.

The usage of individual stabilization of output voltages of 3.3 and 5 V is clearly shown by the presence of a daughter board with a pair of chokes near the output circuits.

The device employs a contemporary and effective resonance topology based on a Champion Micro CM6901X SLS (SRC / LLC + SR) controller.

Other control chips include the Sitronix ST9S313-DAG supervisor and the TNY177PN standby power controller (located under the power cord input).

CHIEFTEC CORE BBS 700S Power Supply 4

A very standard “little gentleman’s set” comprising two CX capacitors (one placed at the input of the power cord), five CY capacitors (two placed at the input of the power cord), and two common-mode chokes make up the electromagnetic interference filter at the power input.

A fuse and a varistor are further options for the device’s protection against transient power spikes.

At the output, CapXon and JunFu capacitors are employed. If the first falls within the category of good average, the second’s reputation is far less than stellar.

Final thoughts on CHIEFTEC CORE BBS-700S Power Supply

A record-breaking fusion of power, efficiency, and acoustic comfort is provided by the CHIEFTEC CORE BBS-700S Power Supply. It also supports operation with a wide variety of input voltages, offers quite good voltage stability, and has a low degree of ripples.

The primary disadvantage is that the producer saves money by using old capacitors, and the other disadvantages are a relatively straightforward cable system and a short guarantee period. However, versions without these issues will be substantially more expensive.

Overall, we have a pretty attractive model of a reasonable power supply with a very respectable set of features.

CHIEFTEC CORE BBS 700S Power Supply 5 is an affiliate. As an Amazon Associate I earn from qualifying purchases.
  • 96%
    Performance - 96%
  • 96%
    Price - 96%
  • 96%
    Value - 96%