Premium Chieftec Navitas 650 W PSU Review

Announced several months ago, Chieftec Navitas series of PSUs has managed to win the hearts of PC enthusiasts in many areas across the globe. Unlike the majority lineups where the junior model features 450/550 W power, Navitas offers 650 W GPM-650C as the first model in the line to satisfy the needs of fastidious customers. Upon the whole, the series counts five models of 650 W, 750 W, 850 W, 1000 W, and 1250 W power. Let’s see whether the junior representative of the series deserves universal acclaim.



Basic Specs and Connectors


Chieftec Navitas 650 W is delivered in a gray cardbox that contains its basic specifications. The unit is able to gain up to 648 W power on +12VDC rail efficiency. The correlation of efficiency on +12VDC rail and an overall power makes up 0.997 points. The model itself is housed in a gray case with large texture coating. Its layout might boast the incorporation of a high-voltage Nippon Chemi-Con capacitor and as much as efficient Capxon …

Gigabyte Shows Off a Bespoke GTX 970 Graphics Card

Gigabyte has intrigued its fans by the design of an unusual videocard – the GeForce GTX 970 (GV-N970TTOC-4GD). It is based on Nvidia GM-204-200-A1 GPU (Maxwell) but with overclocked frequencies. The core operates at 1101 MHz/1241 MHz instead of etalon 1050 MHz/1178 MHz. The GPU is accompanied with 4 GB of GDDR5 memory (256-bit bus) that runs at 7010 MHz efficient clock frequency.



Gigabyte GeForce GTX 970 is distinguished by the implementation of Twin Turbo Fan cooling system. It consists of three copper heatpipes with direct touch technology, an aluminum heatsink, and a radial-flow fan; the latter grasps air from both sides of the adapter due to the shortened PCB design.


As a result, the airflow increases by 24%, whereas the cooling effect enhances by 29%. Thanks to this, the card is thought to be an optimal solution for Nvidia SLI configurations.


It should be noted that this graphics card boasts a high-quality hardware base – Ultra Durable VGA. A set of external …

Xilence Company has presented a kilowatt power supply unit of XQ series

Taiwanese company Xilence released two PSU of unusual design — XQ Series of 750 and 850 W capacities. In contrast to usual offers on the market, these PSU are equipped with a pair of 60-mm fans. It has separate adjustment of speed and can operate in a completely passive mode at a load of up to 20-30%.



Recently, Xilence added to the above-mentioned series a power supply with nominal 1000W. New model in the pre-sale testing was certified with 80 Plus Platinum, which indicates the level of efficiency from 90% to 94% in the system of 230 V. Like its predecessors, the unit uses a modular principle of cabling, active power factor correction mechanism and complies with ATX12V v2.3 and EPS12V v2.92 standards. The list of available power cables (connectors) is the following: 4x PCI-E 6-pin, 4x PCI-E (6 + 2)-pin, 7x Molex 4-pin, FDD, 12x SATA, EPS12V (4 +4)-pin, EPS12V 8-pin and ATX (20 +4)-pin.


Five-year warranty on the Xilence XQ 1000W provides the possibility of replacement the …
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Registered at: 19 November 2011, 14:27
Last visit: 25 November 2011, 18:28