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	<title>Técnicas de Reparação de Avárias</title>
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	<description>TRA</description>
	<lastBuildDate>Fri, 13 Feb 2009 16:38:30 +0000</lastBuildDate>
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		<title>Técnicas de Reparação de Avárias</title>
		<link>http://andretdra.wordpress.com</link>
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		<item>
		<title>Arquictetura de Micro-Processadores</title>
		<link>http://andretdra.wordpress.com/2009/02/13/arquictetura-de-micro-processadores/</link>
		<comments>http://andretdra.wordpress.com/2009/02/13/arquictetura-de-micro-processadores/#comments</comments>
		<pubDate>Fri, 13 Feb 2009 16:38:30 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

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		<description><![CDATA[Um microprocessador executa uma série de instruções de máquina que dizem a ele o que fazer. As três funções básicas de um processador são: utilizando sua ALU (Unidade Lógico-Aritmética), o microprocessador pode executar operações matemáticas como adição, subtração, multiplicação e divisão. Os microprocessadores modernos contêm processadores de ponto flutuante que podem executar operações extremamente sofisticadas [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=95&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><img src="/DOCUME~1/ssl/DEFINI~1/Temp/moz-screenshot.jpg" alt="" /><img src="/DOCUME~1/ssl/DEFINI~1/Temp/moz-screenshot-1.jpg" alt="" /><img src="/DOCUME~1/ssl/DEFINI~1/Temp/moz-screenshot-2.jpg" alt="" /><img src="/DOCUME~1/ssl/DEFINI~1/Temp/moz-screenshot-3.jpg" alt="" /></p>
<p>Um microprocessador executa uma série de instruções de máquina que dizem a ele o que fazer. As três funções básicas de um processador são:</p>
<ul>
<li>utilizando sua ALU (Unidade Lógico-Aritmética), o microprocessador pode executar operações matemáticas como adição, subtração, multiplicação e divisão. Os microprocessadores modernos contêm processadores de ponto flutuante que podem executar operações extremamente sofisticadas com número grandes em pontos flutuantes;</li>
<li>um microprocessador pode mover dados de um endereço de <a href="http://informatica.hsw.uol.com.br/memoria-do-computador.htm">memória</a> para outro;</li>
<li>um microprocessador pode tomar decisões e desviar para um outro conjunto de instruções baseado nestas decisões.</li>
</ul>
<p>O microprocessador pode fazer coisas muito complicadas, mas as três atividades citadas acima são as suas principais ações. O diagrama a seguir mostra um microprocessador extremamente simples que é capaz de fazer estas três coisas:<img class="alignnone size-full wp-image-96" title="microprocessor1" src="http://andretdra.files.wordpress.com/2009/02/microprocessor1.gif?w=411&#038;h=397" alt="microprocessor1" width="411" height="397" /></p>
<p> </p>
<p> RISC:</p>
<p>bytes:</p>
<p>bits:</p>
<p> </p>
<p> </p>
<p>http://informatica.hsw.uol.com.br/microprocessadores2.htm</p>
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			<media:title type="html">andre4a</media:title>
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			<media:title type="html">microprocessor1</media:title>
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	</item>
		<item>
		<title>Problemas de vídeo</title>
		<link>http://andretdra.wordpress.com/2008/12/05/problemas-de-video/</link>
		<comments>http://andretdra.wordpress.com/2008/12/05/problemas-de-video/#comments</comments>
		<pubDate>Fri, 05 Dec 2008 18:07:06 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://andretdra.wordpress.com/?p=74</guid>
		<description><![CDATA[-Adaptadores de vídeo; -Placas de vídeo; -Safe Mode &#124; VGA Mode; -Falhas comuns quando se instala uma nova placa de vídeo; -Não ler o manual também pode ser uma das falhas comuns; -Falha na colocação do apaptador no slot da motherboard; -Falha ao ligar o cabo de corrente adicional; -Falha na ligação da ventoinha da [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=74&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>-Adaptadores de vídeo;</p>
<p><a href="http://andretdra.files.wordpress.com/2008/11/g_003575781.jpg"><img class="alignnone size-full wp-image-76" title="g_003575781" src="http://andretdra.files.wordpress.com/2008/11/g_003575781.jpg?w=197&#038;h=138" alt="g_003575781" width="197" height="138" /></a></p>
<p><a href="http://andretdra.files.wordpress.com/2008/11/vga2.jpg"><img class="size-full wp-image-77 alignleft" title="vga2" src="http://andretdra.files.wordpress.com/2008/11/vga2.jpg?w=210&#038;h=114" alt="vga2" width="210" height="114" /></a></p>
<p>-Placas de vídeo;</p>
<p><a href="http://andretdra.files.wordpress.com/2008/11/placade-video.jpg"><img class="alignnone size-full wp-image-78" title="placade-video" src="http://andretdra.files.wordpress.com/2008/11/placade-video.jpg?w=393&#038;h=483" alt="placade-video" width="393" height="483" /></a></p>
<p>-Safe Mode | VGA Mode;</p>
<p>-Falhas comuns quando se instala uma nova placa de vídeo;</p>
<p>-Não ler o manual também pode ser uma das falhas comuns;</p>
<p>-Falha na colocação do apaptador no slot da motherboard;</p>
<p>-Falha ao ligar o cabo de corrente adicional;</p>
<p>-Falha na ligação da ventoinha da placa à corrente;</p>
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			<media:title type="html">andre4a</media:title>
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			<media:title type="html">g_003575781</media:title>
		</media:content>

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			<media:title type="html">vga2</media:title>
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			<media:title type="html">placade-video</media:title>
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	</item>
		<item>
		<title>Configuração do vídeo</title>
		<link>http://andretdra.wordpress.com/2008/12/05/configuracao-do-video/</link>
		<comments>http://andretdra.wordpress.com/2008/12/05/configuracao-do-video/#comments</comments>
		<pubDate>Fri, 05 Dec 2008 17:59:57 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://andretdra.wordpress.com/?p=72</guid>
		<description><![CDATA[-Caso não exista  vídeo numa placa de vídeo pré-instalada ; -Se aparecer a mensagem &#8220;Out of Scan Range&#8221; (ou algo similar)é apresentado no monitor. -O texto está muito grande ou muito pequeno. (Por ex: CRT de 17&#8242;=800&#215;600 ou 1024&#215;708 no 19&#8242; 1600&#215;1200); -O texto surge mexido ou distorcido; -Os problemas de vídeo surgem quando o computador permanece [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=72&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>-Caso não exista  vídeo numa placa de vídeo pré-instalada ;</p>
<p>-Se aparecer a mensagem &#8220;Out of Scan Range&#8221; (ou algo similar)é apresentado no monitor.</p>
<p>-O texto está muito grande ou muito pequeno. (Por ex: CRT de 17&#8242;=800&#215;600 ou 1024&#215;708 no 19&#8242; 1600&#215;1200);</p>
<p>-O texto surge mexido ou distorcido;</p>
<p>-Os problemas de vídeo surgem quando o computador permanece ligado durante algum tempo.</p>
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			<media:title type="html">andre4a</media:title>
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	</item>
		<item>
		<title>Erro&#8221;Hard drive failure&#8221;</title>
		<link>http://andretdra.wordpress.com/2008/10/31/errohard-drive-failure/</link>
		<comments>http://andretdra.wordpress.com/2008/10/31/errohard-drive-failure/#comments</comments>
		<pubDate>Fri, 31 Oct 2008 18:00:35 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://andretdra.wordpress.com/?p=51</guid>
		<description><![CDATA[-No erro &#8220;Harddrive Failure&#8221; normalmente o problema é de hardware. -Verificar cabos e electricidade. -Usar cabos diferentes. -Pode ser drive defeituosa.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=51&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>-No erro &#8220;Harddrive Failure&#8221; normalmente o problema é de hardware.</p>
<p>-Verificar cabos e electricidade.</p>
<p>-Usar cabos diferentes.</p>
<p>-Pode ser drive defeituosa.</p>
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			<media:title type="html">andre4a</media:title>
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		<item>
		<title>Sistema recusa arrancar de uma drive</title>
		<link>http://andretdra.wordpress.com/2008/10/31/sistema-recusa-arrancar-de-uma-drive/</link>
		<comments>http://andretdra.wordpress.com/2008/10/31/sistema-recusa-arrancar-de-uma-drive/#comments</comments>
		<pubDate>Fri, 31 Oct 2008 17:50:09 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://andretdra.wordpress.com/?p=48</guid>
		<description><![CDATA[-Verificar se a drive é de arranque. -Dispositivo(drive) que vai arrancar faz parte do menu de arranque. -Começar por verificar ligaçoes. -Trocar componentes.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=48&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>-Verificar se a drive é de arranque.</p>
<p>-Dispositivo(drive) que vai arrancar faz parte do menu de arranque.</p>
<p>-Começar por verificar ligaçoes.</p>
<p>-Trocar componentes.</p>
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			<media:title type="html">andre4a</media:title>
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		<title>Os discos Sata não são conhecidos</title>
		<link>http://andretdra.wordpress.com/2008/10/31/os-discos-sata-nao-sao-conhecidos/</link>
		<comments>http://andretdra.wordpress.com/2008/10/31/os-discos-sata-nao-sao-conhecidos/#comments</comments>
		<pubDate>Fri, 31 Oct 2008 17:41:30 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://andretdra.wordpress.com/?p=40</guid>
		<description><![CDATA[Espeficar este problema de arranque. -O modo como os discos Sata são reconhecidos  depende da combinaçao Bios, interface Sata e S.O . -Sata é diferente Windows 2000(ou seja não é competivel). -Instalar drivers para o disco. -Abrir caixa e verificar ligaçoes. -Substituição de componentes. -O monitor apresenta o menu da BIOS e repor permissoes. -Se o [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=40&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Espeficar este problema de arranque.</p>
<p>-O modo como os discos Sata são reconhecidos  depende da combinaçao Bios, interface Sata e S.O .</p>
<p>-Sata é diferente Windows 2000(ou seja não é competivel).</p>
<p>-Instalar drivers para o disco.</p>
<p>-Abrir caixa e verificar ligaçoes.</p>
<p>-Substituição de componentes.</p>
<p>-O monitor apresenta o menu da BIOS e repor permissoes.</p>
<p>-Se o Pc nao reconhcer rato ou o teclado USB ,substituir por Ps/2</p>
<p>-Verificar definiçoes da BIOS.</p>
<p>-Se não houver acesso a BIOS, desliguem o sistema e desconectar as drive e reiniciem o sistema.Depois disto ligar o PC e se o sistema mostrar o erro hardrive failure ou but device error o PC mostra um erro ao outro(é o cabo defeituoso).Se tudo falhar substituir a motherboard.~</p>
<p><img src="http://loja.socria.net/images/HD%20250GB%20SEAGATE%20SATA%20150%20%20%20%207200%20RPM%208MB.JPG" alt="" /></p>
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			<media:title type="html">andre4a</media:title>
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		<title>Quando se liga à corrente, o Pc arranca à detenção da drive de disquetes</title>
		<link>http://andretdra.wordpress.com/2008/10/24/quando-se-liga-a-corrente-o-pc-arranca-a-detencao-da-drive-de-disquetes/</link>
		<comments>http://andretdra.wordpress.com/2008/10/24/quando-se-liga-a-corrente-o-pc-arranca-a-detencao-da-drive-de-disquetes/#comments</comments>
		<pubDate>Fri, 24 Oct 2008 17:21:16 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://andretdra.wordpress.com/?p=38</guid>
		<description><![CDATA[Especificar este problema de arranque. -Verificar cabos. -Desligar cabo e ver se sistema arranca. -Substituir drive. -Se na Bios o arranque está definido para passar na drive de disquetes e existe uma disquete na drive este nao arranca (não liga).<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=38&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Especificar este problema de arranque.</p>
<p>-Verificar cabos.</p>
<p>-Desligar cabo e ver se sistema arranca.</p>
<p>-Substituir drive.</p>
<p>-Se na Bios o arranque está definido para passar na drive de disquetes e existe uma disquete na drive este nao arranca (não liga).</p>
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			<media:title type="html">andre4a</media:title>
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		<title>O computador parece arrancar normalmente mas o monitor permanece preto</title>
		<link>http://andretdra.wordpress.com/2008/10/24/o-computador-parece-arrancar-normalmente-mas-o-monitor-permanece-preto/</link>
		<comments>http://andretdra.wordpress.com/2008/10/24/o-computador-parece-arrancar-normalmente-mas-o-monitor-permanece-preto/#comments</comments>
		<pubDate>Fri, 24 Oct 2008 17:14:40 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://andretdra.wordpress.com/?p=35</guid>
		<description><![CDATA[Especificar este Problema: -Verficar se o monitor tem corrente e se está ligado. -Verificar controlos de brilho e contraste. -Retirar cabo e verificar pinos. -Verficar se motherboard tem mais q uma entrada de video e verificar se o cabo está na entrada  correcta. -Verificar se placa de video está encaixada correctamente. -Caso a placa de [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=35&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Especificar este Problema:</p>
<p>-Verficar se o monitor tem corrente e se está ligado.</p>
<p>-Verificar controlos de brilho e contraste.</p>
<p>-Retirar cabo e verificar pinos.</p>
<p>-Verficar se motherboard tem mais q uma entrada de video e verificar se o cabo está na entrada  correcta.</p>
<p>-Verificar se placa de video está encaixada correctamente.</p>
<p>-Caso a placa de video necessita de alimentação eléctrica e verificá-la.</p>
<p>-Se existir expansoes PCI retirar uma a uma.</p>
<p>-O computador arranca normalmente mas subitamente desliga.</p>
<p>-Verificar fonte de alimentação  isto pode ser normal (Pressione alguns segundos o botão &#8220;On&#8221; e reiniciar.</p>
<p>-Problema de fonte alimentação, substitui-la.</p>
<p>-Se for problema de motherboard substitui-la.</p>
<p><img src="http://support.dell.com/support/edocs/monitors/E196FP/GRAPHICS/attach-speaker.gif" alt="" width="245" height="353" /></p>
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			<media:title type="html">andre4a</media:title>
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		<title>Problemas do Arranque</title>
		<link>http://andretdra.wordpress.com/2008/10/24/problemas-do-arranque/</link>
		<comments>http://andretdra.wordpress.com/2008/10/24/problemas-do-arranque/#comments</comments>
		<pubDate>Fri, 24 Oct 2008 17:02:04 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://andretdra.wordpress.com/?p=31</guid>
		<description><![CDATA[Este post tem como função mostrar os vários problemas de arranque. Lista de Problemas de Arranque. -Quando pressiona o botão ligar verificar se nada acontece. -Verificar cabos da corrente e se a tomada tem corrente. -Verificar o UPS. -Verificar fonte de alimentação. -Verificar se o caso  ATX está correctamente ligada. -Verificar Botão ligar. -Remover cabos [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=31&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Este post tem como função mostrar os vários problemas de arranque.</p>
<p>Lista de Problemas de Arranque.</p>
<p>-Quando pressiona o botão ligar verificar se nada acontece.</p>
<p>-Verificar cabos da corrente e se a tomada tem corrente.</p>
<p>-Verificar o UPS.</p>
<p>-Verificar fonte de alimentação.</p>
<p>-Verificar se o caso  ATX está correctamente ligada.</p>
<p>-Verificar Botão ligar.</p>
<p>-Remover cabos e expansão.</p>
<p>-Remover as memorias e testá-las em outros PC&#8217;s.</p>
<p>-Verificar processador e socket.</p>
<p>-Remover a motherboard e procurar defeitos.</p>
<p>-Substituir motherboard.</p>
<p><img src="http://twiki.dcc.ufba.br/pub/Colmeia/FuncionamentoComputadorVersaoTwiki/cpu.jpg" alt="" /></p>
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			<media:title type="html">andre4a</media:title>
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		<title>Bios</title>
		<link>http://andretdra.wordpress.com/2008/10/03/bios/</link>
		<comments>http://andretdra.wordpress.com/2008/10/03/bios/#comments</comments>
		<pubDate>Fri, 03 Oct 2008 16:46:27 +0000</pubDate>
		<dc:creator>andre4a</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://andretdra.wordpress.com/?p=12</guid>
		<description><![CDATA[O que é ??? Para que serve??? BIOS ou Basic Input / Output System é o primeiro programa acessado pelo processador durante o arranque para garantir que todos os outros programas básicos, discos rígidos, portos, periféricos e da unidade central de processamento estão em boas condições de funcionamento. BIOS é diferente do sistema operacional do [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=andretdra.wordpress.com&amp;blog=5061971&amp;post=12&amp;subd=andretdra&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<ul>
<li>O que é ???</li>
</ul>
<ul>
<li>Para que serve???</li>
</ul>
<p>BIOS ou Basic Input / Output System é o primeiro programa acessado pelo processador durante o arranque para garantir que todos os outros programas básicos, discos rígidos, portos, periféricos e da unidade central de processamento estão em boas condições de funcionamento. BIOS é diferente do sistema operacional do computador. O sistema operacional reside no disco rígido e fornece a interface do usuário que pode ser visto na tela após o arranque. O programa BIOS, por outro lado, pode ser encontrado em um direito ou chip de memória flash ROM localizada na motherboard. É o requisito básico para iniciar um computador.</p>
<p>Encontrei este site que tem alguma informação util sobre a BIOS: Página Principal  <a title="http://www.pcdicas.net" href="http://www.pcdicas.net">http://www.pcdicas.net</a></p>
<p>Onde se encontra o artigo é <a title="http://www.pcdicas.net/pdf/n81.pdf" href="http://www.pcdicas.net/pdf/n81.pdf">http://www.pcdicas.net/pdf/n81.pdf</a></p>
<p><img src="http://content.answers.com/main/content/wp/en/d/dd/Phoenix_-_AwardBIOS_CMOS_Setup_Utility.jpg" alt="" width="471" height="350" /></p>
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