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 …

HIS Radeon R9 290 IceQ X2: Graphics Card with an Offbeat Cooler

HIS has recently replenished its Radeon R9 series of graphics cards with a new model – the Radeon R9 290 IceQ X2. Based on AMD Hawaii Pro chip, this card is a combination of an ultimate efficiency and an offbeat design. The integrated GPU runs at an etalon frequency — 947 MHz. No changes have been incorporated into the frequency mode of GDDR5 memory: the 4 GB memory with 512-bus interface runs at nominal/effective 1250/5000 MHz frequency.



The major peculiarity pertained to the model is the employment of a proprietary two-slot cooler, codenamed IceQ X2. It consists of a spacious copper base (40x47.5 mm), a large aluminum heatsink, a pair of 89 mm fans, and five nickel-plated heatpipes: 2x 8 mm and 3x 6 mm. The cooler also accommodates additional heatspreaders, which dissipate heat in memory and VRM sections. Moreover, the framework boasts a dedicated stiffening plate that reduces loading on the printed circuit board.


To continue, HIS Radeon R9 290 IceQ X2 comes with two …

Small-Sized CPU Cooler Thermalright AXP-100 Review

Being an acknowledged leader in the segment of PC cooling systems, Thermalright never stops its improvement. The company always keeps pace with time, supplying its customers with only advanced and up-dated products. Following the latest tendencies towards the miniaturization in HTPC field, Thermalright took a decision to design a cooler for small-sized mini-ITX motherboards. As a result, all potential customers can now revel in a new compact cooler, codenamed AXP-100.



Design and Framework


CPU cooler AXP-100 features a horizontal framework, consisting of thin aluminum plates pieced by six copper heatpipes (6 mm each pipe). The whole construction is covered by a nickel surface. The heatpipes are folded smoothly and distributed across the heatsink area with 10 mm spacing; their edges are covered by ornamental caps with ‘Thermalright’ logo. Such configuration ensures utmost heat dissipation across the surface.


The implemented heatsink has got two-stage structure, …
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Registered at: 16 October 2012, 11:23
Last visit: 16 October 2012, 11:30