Nvram

Código	Causa	Código	Causa

1-1-2	Falha no registro do microprocessador	3-1-4	Falha no registro da máscara de
			interrupção escravo

1-1-3	Falha na leitura/gravação da memória	3-2-2	Falha no carregamento do vetor de
	NVRAM		interrupção

1-1-4	Falha no checksum da ROM do BIOS	3-2-4	Falha no teste do controlador do teclado

1-2-1	Falha no temporizador de intervalo	3-3-1	Perda de energia na NVRAM
	programável

1-2-2	Falha na inicialização do DMA	3-3-2	Configuração inválida da memória
			NVRAM

1-2-3	Falha na gravação/leitura do registro de	3-3-4	Falha no teste da memória de vídeo
	página do DMA

1-3	Falha no teste da memória de vídeo	3-4-1	Falha na inicialização da tela

1-3-1 a 2-4-4	A memória não está sendo corretamente	3-4-2	Falha na reconstituição da tela
	identificada ou usada

3-1-1	Falha no registro escravo de DMA	3-4-3	Falha em procurar pela ROM do vídeo

3-1-2	Falha no registro mestre de DMA	4-2-1	Sem marcação de tempo

3-1-3	Falha no registro da máscara de	4-2-2	Falha ao desligar
	interrupção mestre

4-2-3	Falha no gate A20	4-4-1	Falha no teste da porta paralela ou serial

4-2-4	Interrupção inesperada no modo	4-4-2	Falha na descompressão do código para
	protegido		memória sombreada

4-3-1	Falha na memória acima do endereço	4-4-3	Falha no teste do co-processador
	0FFFFh		matemático

4-3-3	Falha no contador 2 de chip de	4-4-4	Falha no teste do cache
	temporizador

4-3-4	O relógio parou

Como executar o programa de diagnóstico do disco rígido IDE Dell™

O Dell IDE Hard Drive Diagnostics é um utilitário que testa o disco rígido para solucionar problemas ou confirmar uma falha do disco rígido.

1Ligue o computador (se já estiver ligado, reinicialize-o).

2Quando a linha F2= Setup aparecer no canto superior direito da tela, pressione <Ctrl><Alt><d>.

3Siga as instruções da tela.

Se o programa indicar que houve uma falha, consulte “Problemas de disco rígido” na seção “Como solucionar problemas” do Guia do usuário online.

Guia de referência rápida

K7821 specifications

The Dell K7821 is a powerful and versatile monitor that caters to the needs of professionals, gamers, and everyday users alike. With its sleek design and advanced features, it has become a preferred choice for those who require high-quality visuals and exceptional performance.

One of the standout characteristics of the Dell K7821 is its impressive display. Featuring a large screen size, it offers an optimal viewing experience, ideal for multitasking or immersive gaming. The resolution of the monitor ensures sharp, clear images while maintaining vibrant colors that bring content to life. It employs advanced IPS (In-Plane Switching) technology, which provides wider viewing angles and consistent color accuracy, making it suitable for collaborative work environments as well as personal use.

The K7821 is equipped with multiple connectivity options, including HDMI, DisplayPort, and USB-C ports. This versatility allows users to connect various devices seamlessly, whether it's a laptop, desktop, or even gaming consoles. Additionally, the monitor supports plug-and-play functionality, ensuring an easy setup process without the need for complex installations.

One of the key features of the Dell K7821 is its ergonomics. It comes with an adjustable stand that allows users to change the height, tilt, and swivel of the monitor, promoting comfort during extended usage. This adaptability is especially beneficial for professionals who spend long hours in front of their screens.

For those concerned about eye strain, Dell has incorporated several eye-care technologies into the K7821. With features such as flicker-free technology and a blue light filter, users can enjoy longer viewing sessions without discomfort. This attention to eye health is essential in today's digital age, where screen time is ever-increasing.

In terms of design, the Dell K7821 boasts an elegant and modern aesthetic. It features slim bezels that maximize the screen real estate, allowing for a more immersive experience and making it an excellent choice for a dual or multi-monitor setup.

In conclusion, the Dell K7821 is a robust monitor that integrates cutting-edge technology with user-friendly features. Its exceptional display quality, versatile connectivity options, ergonomic design, and eye-care technologies position it as an excellent choice for a wide range of users, from gamers to professionals seeking efficiency and comfort in their workspace. With this monitor, Dell continues to uphold its reputation for producing reliable and high-quality peripherals that enhance productivity and enjoyment.

Dell K7821 manual Nvram

Models: K7821

K7821 specifications