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3 Placa M E Hardware

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3 Placa M E Hardware
Hardware I
Prof. Leonardo Soares

- Placa-Mãe Placa de circuíto impresso com multicamadas de cobre (condutor) intercaladas por fibra de vidro (isolante), devidamente projetada, que permite as conexões físicas e elétricas, direta ou indireta, de todos os dispositívos de um PC.
No início as placas-mãe serviam apenas como uma interligação entre os demais componentes, mas com o passar do tempo muitos componentes passaram a ser
Integrados a elas, dando origem as atuais placas, que incluem recursos para processamento de som, vídeo, rede e etc.
Com a saída dos controladores de memória e mais recentemente com o advento dos processadores Intel Sandy Bridge, que possuem processador gráfico integrado, importantes componentes deixaram de fazer parte da placa-mãe. Porém, ainda é o maior e, junto com o processador, mais importante componente dos PC’s atuais.

Hardware I
Prof. Leonardo Soares

- Placa-Mãe - tamanhos

12x12 cm

10x7.2 cm

17x17 cm
24.4x24.4 cm ou -

Placa-mãe Pico-ITX

30.5x24.4 cm

Além dos tamanhos acima temos ainda o E-ATX (ATX Extendido), de 30.5x33cm, e que é utilizado por placas-mãe para servidores, e o HPTX (O “A” de ATX foi substituido pelo “HP”, de “High Performance”, ou “Alta performance”), de
34.5x38 cm, que é utilizado por placas topo de linha projetadas para oferecer desempenho extremo em jogos.
Os 3 tamanhos mais utilizados

de placas são o Micro-ATX, Standard-ATX e Mini-ITX

Hardware I
Prof. Leonardo Soares

- Placa-Mãe - Tamanhos
Padrão

Altura

Largura

HPTX

34.5 cm

38 cm

E-ATX

30,5 cm

33 cm

ATX

30,5 cm

24,4 cm

Micro-ATX

24,4 cm

24,4 cm (ou menos)

Mini-ITX

17 cm

17 cm

Nano-ITX

12 cm

12 cm

Pico-ITX

10 cm

7.2 cm

Hardware I
Prof. Leonardo Soares

- Placa-Mãe - tamanhos
Placa-mãe EVGA Classifield SR2, padrão HPTX, tão grande que não pode ser instalada mesmo em muitos gabinetes torre completa, exigindo que o gabinete tenha espaço para, pelo menos, 9 slots de expansão para placas. Apesar de ser direcionada ao mercado de jogos,
tem

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