w w w . d e l l . c o m s u p p o r t . e u r o . d e l l . c o m

10Al riavvio del computer, premere quando viene visualizzata la schermata con il logo di Dell e prima che appaia quella con il logo Microsoft Windows.

11Nel programma di configurazione del sistema selezionare la pagina Boot Order e reimpostare l’ordine originale della sequenza di avvio.

12Premere per uscire dal programma di configurazione del sistema e riavviare Microsoft Windows.

13Rimuovere il CD dall’unità CD, CD-RW o DVD.

All’avvio del programma di diagnostica, verrà visualizzata la schermata del logo di Dell, quindi verrà visualizzato un messaggio che indica che è in corso il caricamento della diagnostica. Al termine del caricamento verrà visualizzata la schermata Diagnostics Menu (menu diagnostica).

Per selezionare un’opzione di questo menu, evidenziarla e premere oppure premere il tasto corrispondente alla lettera evidenziata nel nome dell’opzione desiderata.

Avvisi sulle normative

Con interferenza elettromagnetica (EMI) si indica un qualsiasi segnale o emissione, irradiato nello spazio o trasmesso tramite cavi di alimentazione o di segnale, che può compromettere il funzionamento di dispositivi di navigazione radio o servizi di sicurezza di altro tipo, o che in modo significativo disturba, attenua o interrompe ripetutamente un servizio di radiocomunicazione a norma di legge. I servizi di radiocomunicazione comprendono, in via esemplificativa, trasmissioni commerciali AM/FM, televisione, servizi cellulari, radar, controllo del traffico aereo, cercapersone e servizi personali di comunicazione (PCS). Tali servizi a norma di legge, unitamente alle emissioni involontarie provenienti da dispositivi digitali quali i computer, contribuiscono alla formazione dell’ambiente elettromagnetico.

120

Informazioni di sistema

Page 122
Image 122
Dell C840 manual Avvisi sulle normative, Informazioni di sistema

C840 specifications

The Dell C840, released in the early 2000s, was a powerful mobile workstation designed to meet the needs of professionals who demanded high performance in a portable format. As part of Dell's Precision series, the C840 was well-regarded for its robust build quality, advanced features, and capability to handle intensive computing tasks.

One of the standout features of the Dell C840 was its Intel Pentium 4 processor, which offered impressive processing power at the time. Users could opt between different configurations, some even including the Intel Pentium 4 Extreme Edition for those seeking maximum performance. The system was designed to handle demanding applications such as CAD, 3D modeling, and other graphics-intensive programs, making it a favorite among architects, engineers, and graphic designers.

The C840 also featured a vibrant 15-inch display, with options for a high-resolution screen that provided sharp visuals and ample screen real estate for multitasking. The display's quality was complemented by NVIDIA graphics options, including the Quadro4 700 Go graphics card, which was optimized for professional applications, ensuring smoother graphics rendering and improved performance in 3D applications.

In terms of memory, the Dell C840 supported a generous amount of RAM, with configurations allowing up to 2GB, which was substantial for its time. This memory capacity contributed to better multitasking capabilities and overall system performance, allowing users to run multiple applications simultaneously without noticeable slowdowns.

Connectivity was another strong point of the Dell C840. The laptop featured a variety of ports, including USB ports, parallel and serial ports, and an optional docking station, which enhanced its versatility for connecting to various peripherals. Wireless technology was also a part of the package, with the inclusion of Wi-Fi capabilities, making it easier for users to stay connected in different environments.

Durability and design were key aspects as well. The C840 featured a solid chassis designed to withstand the rigors of mobility, making it suitable for on-the-go professionals. Its keyboard was designed for comfort and responsiveness, a critical feature for users who spent long hours typing.

In summary, the Dell C840 was a notable mobile workstation that combined power, performance, and portability. With its advanced Intel processors, high-quality display, robust graphics options, ample memory, and strong connectivity features, it catered to professionals looking for a reliable and efficient tool to handle their demanding workloads. Though technology has evolved significantly since its release, the Dell C840 remains a milestone in the history of mobile computing for professionals.