Chieftec Navitas Gets a 450-Watt Update

First launched in 2013, Chieftec Navitas series of PSUs included five high-efficiency models of up to 1250 W power. This year the company has introduced four new editions to the family which are characterized by low power: 450 W, 550 W, 650 W, and 750 W. This update is called to satisfy the needs of unpretentious customers who require stability rather than records.

New Chieftec Navitas power supply units come equipped with a single +12V bus that covers 100% power. Hence, it’s possible to integrate the models into the latest system configurations. All of them correspond to 80 Plus Gold standard, achieving up to 87% efficiency in a wide range of operational conditions.

Their other peculiarities involve a fully modular cable system, the availability of a low-noise 120 mm fan, the support for Active PFC technology and all known protection features (i.e. OPP, OTP, UVP, OVP, SCP).

To continue, Chieftec Navitas GPM-450S ensures 450-watt power on +12V rail & up to …

ASRock Launches a New Motherboard with Intel SBA Support

ASRock announces the launch of a new budget-priced motherboard B75M-DGS R2.0. The model does not differentiate itself by an attractive design or wide overclocking facilities, as far as its main predestination is a stable operation in large corporate networks. The board is known to support Intel Small Business Advantage (SBA) software applet that optimizes PC operation and increases its performance. Despite such promising commodities, its price doesn't go over $60 per unit.

ASRock B75M-DGS R2.0 is designed in micro-ATX form-factor; this limits the number of supported expansion slots and other interfaces. As seen from the codename, the motherboard is based on Intel B75 system logics and shows compatibility with Intel Celeron, Intel Pentium and Intel Core i3/i5/i7 processors (second and third generation) compatible with Socket LGA1155. Memory subsystem consists of two DIMM slots which support two-channel DDR3-2200 MHz modules, the overall capacity of which might achieve 16GB …

PSU Enermax Revolution87+ 750W Review

This year has become rather successful for Enermax, a well-known manufacturer of power supply units. The company supplemented its product lines with six series combined into four major groups: entry-level, athlete, royal, and gold class. Revolution87+ series belongs to the Gold Class group and involves five models (from 550W to 1000W power). Model Revolution87+ 750W is distinguished not only by the availability of 80Plus Gold certificate, but also by an original branded platform developed by Enermax specifically for this series.


Enermax has implemented a few striking technical solutions in its Revolution87+ 750W power supply unit. The first attractive feature is a composite control over the main inverter. The control is realized by traditional pulse-width modulation method, as well as by simultaneous involvement of pulse-frequency modulation (the combination of width and frequency in control process).

Upon the whole, this PSU model is able to demonstrate up …
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