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 …

MSI Announces an Optimized Radeon HD 7750 Graphics Card

A new graphics card based on Radeon HD 7750 adapter is going to replenish the line of products developed by MSI. Codenamed MSI Radeon HD 7750 (R7750-1GD/OC), the card is based on AMD Cape Verde Pro GPU. Its nominal clock frequency has been increased from 800MHz to 830MHz index. The model accommodates 1GB of GDDR5 memory with 128-bit interface; its nominal frequency equals to 1125MHz, while its effective clock frequency equals to 4500MHz.

The implemented printed circuit board employs only high-end elements, including high-quality solid-state capacitors. If compared with standard analog items, capacitors integrated into MSI Radeon HD 7750 are characterized by a better efficiency, lower operational temperatures, and longer lifespan. Effective cooling process is ensured thanks to the two-slot cooling system which consists of a single fan and an aluminum heatsink. This cooler is able to provide the utmost airflow necessary for the cooling of all internal components. A set of …

Flash Drives Apacer: USB 3.0 suite any taste

A new line of USB Flash Drives Apacer is exceptional by performance, because they are all designed to work with interface USB 3.0. The capacity, structure and design of these tiny but useful drives, each user is free to choose independently. The entire range of flash drives with a USB interface by Apacer company is divided into three categories: ultra compact flash, flash cards with lockable cap and stick with retractable connector. They all differ from previous models because of operation with an interface USB 3.0.

Cardboard packaging of flash drives is simple. Extremely simple in appearance and completely flat carton of each flashcards contains nothing superfluous.

Metal case of model Apacer AH152 attracts by unusual shape, small size and bright golden colour. USB-port of drive Apacer AH152 is unprotected in harsh reality of pocket life. The model is interesting primarily by its miniaturization, which was gained by usage of technology Chip-On-Board. In Apacer claim that …
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Registered at: 21 November 2011, 01:34
Last visit: 21 November 2011, 01:49