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BFG Tech LS-680 680W Power Supply
Author: Jason Kohrs
Manufacturer: BFG Tech
Source: BFG Tech
Purchase: Newegg
Comment or Question: Post Here
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BFG Tech LS-680 680W Power Supply
September 24, 2008

BFG Tech is a well known and well respected manufacturer of NVIDIA based graphics cards that happens to have a few other product lines that people might not be as familiar with. They also offer a line of motherboards and power supplies to further their penetration into the enthusiast market.

Their line of power supplies consists of several models that offer a variety of interesting features and power ratings from 550W to 1000W. In this review we will be taking a look at the BFG Tech LS-680, a 680 Watt unit that features desirable items such as quad 12V rails, four PCI Express graphics card connections, and a typical efficiency of 85%.

Before taking a closer look at the unit provided for review, let's take a look at some of the published information available on the BFG Tech LS-680 680W power supply. For the most complete features and specifications, please visit the official product page on the BFG Tech website.


ATX12V 2.2
Quad 12V Rails
SATA Connectors
PCI Express Ready
Efficiency: > 80% Typical
Silent 135mm Intake Fan
BFG Thermal Control Technology
Protection Circuitry
MTBF: > 100,000 hours at 25C, > 40,000 hours at 40C
680W Continuous Rated at 40C
Safety Approval: CCC, CB, UL, TUV, CE, CSA, CUL, NEMKO, SAA, GS, VDE
Dimensions: 8.6cm W x 15cm H x 16cm D (3.4" W x 6" H x 6.4" D)
5 Year Warranty


AC input: 100-240 VAC, 60/50 Hz
DC Output:
    12V1: 20A
    12V2: 20A
    12V3: 20A
    12V4: 20A
    5V: 30A
    3.3V: 24A
    -12V: 0.5A
    +5VSB: 3.0A
Maximum Combined Wattage:
    12V Rails: 620W
    3.3V and 5V Rails: 170W
    -12V Rail: 6W
    +5VSB Rail: 15W
Total Power: 680W
Peak Power: 750W

The specifications on this unit make it very similar to the Rosewill RX630-S-B that was just reviewed at Here we again have four 12V rails rated for 20A each, a 24A 3.3V rail, and the first difference is that the 5V rail is rated for 30A here, while it is 24A on the Rosewill unit. The nearly identical specifications, along with other similarities, just about insist that these two units be compared head-to-head. In this review we'll see if the BFG Tech LS-680 has what it takes to one up the very impressive Rosewill RX630-S-B.

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