Modular Power Supply 650W Chieftec A80

Evaluating the effectiveness of modern computer power supplies, the most attention is paid to their coefficient of performance (COP) at a given load — usually means of 20%, 50% and 100%. At the same time, not less important requirement, established by standard 80PLUS should be considered. That means — the preservation of this level of performance for all occurring in the world supply voltage variations, that is in the range of 100-240 V.

The standard rules of 80PLUS at different levels (Basic, Bronze, Silver, Gold, Platinum, etc.) are performed for two voltage 115 V and 230 V. In both cases, the normalized PS should show the efficiency of not less than specified for each category level. Not usual power supply CTG-650C model of the new A-80 series from the Chieftec company is interesting in that it has officially claimed efficiency of 85% or more, but only for nets 220-240 V.

As the advantages of such solution can immediately be noted a lower price, due to less stringent …

Rosewill Introduces PSU Line of 80 Plus Platinum Standards

Rosewill, Californian hardware manufacturer, has gladdened its potential customers with a new PSU line codenamed Fortress. The major peculiarity of this line is that all products are characterized by rather high efficiency coefficient: up to 94% in 230 V alternating current networks. The new line involves models of 450W, 550W, 650W, and 750W showings which have already received 80 Plus Platinum certificate.

Low power dissipation is achieved exactly due to the high efficiency which reduces ventilation demands immensely. The employment of 135 mm fans provided for the perceptible decreased of noise. Those features are considered to be the basic attraction for the customers.

All four models in Fortress line are developed according to a similar scheme with a single 12 V bus. The chief differentiation between the models lies in the output capacity and a cable set. Hence, the high-order PSU is capable to give current of up to 62.5 A; in the aggregate with the available 4 …

MSI Z77A-GD65 - Common LGA1155-board by Micro-Star Company

Like the other major motherboard manufacturers, the company Micro-Star Intel thoroughly prepared for the appearance of Ivy Bridge processors and new chipsets of seventh series. Motherboard companies use simple and understandable system of names, that is why it is not difficult to arrange in order of seniority, all six motherboards based on the logic of Intel Z77 Express, from the main MSI Z77A-GD80 to younger Z77A-G43 and the small Z77MA-G45.

The box, in which comes motherboard MSI Z77A-GD65 is traditionally designed. The front side is decorated with different logos and the centre has a large poster. On the reverse side of the box there is a summary of some advantages and features of the board.

One of the characteristic weaknesses about motherboards of Micro-Star Company is the lack of panels to display USB 3.0 ports on the front wall of the chassis. The layout of the motherboard MSI Z77A-GD65 is close to the classical, and therefore it not only looks good, but is easy to …
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Registered at: 22 March 2012, 21:47
Last visit: 22 March 2012, 21:47