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 …

Micron to Carry Out the Production of TLC Memory Next Year

Memory market, similar to other industries, undergoes certain changes and updates from time to time. Therefore, memory manufacturers are currently trying to comply their production with two major tendencies: considerable drop in demand for RAM, employed basically in desktop PCs, and simultaneous growth of demand for solid-state drives, employed in compact tablets and mobile devices. Besides, the latter is developed at lightning speed.



Micron, one of the leading memory manufacturers, feels like no one else all the changes and fluctuations in the market. Its quarterly reports witness about the relentless drop in demand for DRAM (9% drop at average) for the report period. At the same time, increase in SSD segment is estimated at 5% at average. Sales volume of NOR memory type did not outlive serious changes.


According to the preliminary data, Micron is going to carry out the production of memory on TLC microchips, manufactured under 20 nm technological process. The assumed …

Gigabyte Unveils Middle-End Radeon R7 265 OC Edition Graphics Card

Gigabyte has recently announced the release of its first graphics card based on Radeon R7 265 adapter. The Gigabyte Radeon R7 265 OC Edition comes with operational overclocking and a powerful WindForce 2X cooling system. Still, it is attributed to the middle-end products with an average performance. The model will be available for customers in late March for the recommended price of $170.



This graphics card is developed on AMD Pitcairn Pro GPU (GCN, 28 nm) that embraces 1024 stream processors, 32 ROPs, and 64 TMUs. The core runs at the nominal 1008 MHz frequency but can be overclocked to 1036 MHz margin. Video memory section is represented by 2 GB of GDDR5 memory modules (256-bit interface); they operate at 1400 MHz/5600 MHz frequency (nominal/efficient) respectively.


The Gigabyte Radeon R7 265 OC Edition requires stable and uninterrupted power, provided by the PSU of not less than 500 W efficiency. The connection with the unit is realized via one 6-contact power socket. …
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Registered at: 13 July 2011, 22:27
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