The German be quiet! vendor has lately reported its Straight Power 11 series power supplies marketing launch. These products are already being delivered to retailers at the 105–209 EUR recommended price.
be quiet! novelties, available in 450–1000 W versions, are claimed to be highly effective and operate at a low noise level. They utilize modular cabling and comply with the 80 Plus Gold certificate (the performance factor at 230 V reaches 93 %).
The manufacturer indicates a completely refined PC-board as one of these power supplies’ strong points. Other Straight Power 11 specs include hyperthermal (105 °C) capacitors, produced in Japan, enhanced steadiness and voltage control, alongside with decreased fluctuation. The devices feature four 12 V lines of the total 37.5–83.3 A current load.
The 135 mm Silent Wings 3 fan with the automatic rotary speed control cools inner components. The system is …
The number of graphics solutions designed by HIS cannot be figured from a cursory calculation only. Indeed, the company's product line counts dozens of cards destined at various audiences, with various needs and budgets. Take HIS HD 7850 series alone: it consists of ten models (three with 1GB memory and seven with 2GB memory). The latest HIS 7850 IceQ X Turbo X belongs to '2GB echelon' and is distinguished by the heightened GPU and memory frequency. Upon the whole, this graphics adapter features outstanding cooling and overclocking facilities.
Design and PCB
Graphics adapter HIS 7850 IceQ X Turbo X is a standard representative of the second HD 7850 revision. It is housed on a short printed circuit board and is equipped with only a single power socket, two heatpipes and a large fan. HIS developers advanced the heatpipes outside the board to elongate its contours; nevertheless, this card can't be considered voluminous, since its width hasn't been touched at all. The top part …
Hightech Information System presents its own version of AMD's Radeon HD 7970 GHz Edition graphics card to the US hardware market. Codenamed Radeon HD 7970 IceQ X2 GHz Edition, this card is characterized by the integration of the most up-dated technologies and high-end components. The model is based on Tahiti XT chip developed under Graphics Core Next architecture template (28 nm technological process).
HIS Radeon HD 7970 IceQ X2 GHz Edition takes blue printed circuit board designed for PCI Express 3.0 x16 bus as the basis. It is distinguished by the implementation of the reinforced power subsystem and by the compatibility with DirectX 11.1 technology. The employed GPU houses 2048 current processors. It operates at 1000 MHz frequency in nominal mode but can be accelerated to 1050 MHz during overclocking activity.
This graphics card accommodates 3GB of GDDR5 video memory which features 384-bit interface. Its frequency formula demonstrates up to 6000 MHz on standard …
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A conexão de periféricos externos ao computador seria impossível sem adaptadores especiais, feita na forma de filho de portas de entrada/saída na placa-mãe. Esses portos estão em constante interação com o sistema microprocessador, que controla a troca de dados entre os equipamentos que quer ligar o dispositivo de hardware e software.
Alguns adaptadores são chamados a transmitir dados de sistema (por exemplo, informações de teclas do teclado), e outros para gerir dispositivos (como, por exemplo, a ler a informação do disco, a ativação de indicadores). Em ambos os casos, pela execução de operações de atender os drivers para as portas de entrada/saída.
Adaptadores de entrada/saída são seriais e paralelas. Dispositivos seriais transmitem bits de informação por par de fios, um atrás do outro, e paralela – transmite o pacote de vários bits ao mesmo tempo em paralelo aos fios. Estruturalmente, as interfaces de portas são implementadas ou em vários chips, seja em um grande chip, локализированной na placa de expansão ou de uma placa-mãe.
Para ligar o dispositivo a uma porta serial do tipo normalmente usam de 25 pinos 9 pinos (DB-25 e DB-9). Às portas deste tipo incluem interfaces USB e FireWire. Últimos garantem uma maior velocidade de transferência de dados, se o download do driver para portas de e/s para um determinado dispositivo.
A conexão de um dispositivo externo a uma porta paralela do tipo é produzido por meio de 25 bits conector D-Shell e 36 pinos um conector Centronics. Comprimento máximo do cabo, onde necessário, são utilizados fios de par trançado e condutores entre a tela, normalmente atinge 2-3 metros.