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NOTE: The following table lists default IRQ settings. In computers with Plug and Play capabilities, you can modify the default settings. If you install a Plug and Play card in a Plug and Play computer, the computer automatically selects an open IRQ line if any are available.

D e f a u l t I R Q L i n e A s s i g n m e n t s

IRQ

Used/Available

Line

 

 

 

IRQ0

Used by the computer timer

 

 

IRQ1

Used by the keyboard to signal that the output buffer is full

 

 

IRQ2

Used by interrupt controller 1 to enable IRQ8 through IRQ15

 

 

IRQ3

Used by serial connector 2

 

 

IRQ4

Used by serial connector 1

 

 

IRQ5

Available

 

 

IRQ6

Used by the floppy/tape drive controller

 

 

IRQ7

Used by the parallel port

 

 

IRQ8

Used by the real-time clock (RTC)

 

 

IRQ9

Used by the video graphics array (VGA) interface (optional)

 

 

IRQ10

Available

 

 

IRQ11

Available

 

 

IRQ12

Used by the mouse port

 

 

IRQ13

Used by the math coprocessor (if applicable)

 

 

IRQ14

Used by the primary integrated drive electronics (IDE) controller

 

 

IRQ15

Used by the secondary IDE controller

 

 

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Solving Problems

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Dell GX240 manual Used/Available, Line, Solving Problems

GX240 specifications

The Dell GX240, a robust desktop computer released in the early 2000s, exemplifies the breed of machines engineered for business and productivity environments. Targeting corporate users, the GX240 was part of Dell’s OptiPlex series, known for its reliability, support, and manageability.

One of the main features of the Dell GX240 is its Intel Pentium 4 processor, which provided a significant performance boost at the time of its release. This processor was available in various speeds, enabling users to select the model that best met their processing needs. The GX240 also offered ample memory options, supporting up to 2GB of SDRAM, which was considerable for its era, allowing for smoother multitasking and application performance.

The design of the GX240 was practical, featuring a compact, space-saving chassis ideal for office environments. It was designed for easy serviceability, with tool-less access to components, facilitating quick upgrades or repairs. The system was equipped with various configurations, enabling customers to customize it with multiple hard drive options, typically using IDE drives, which provided sufficient storage for everyday tasks.

The desktop utilized a variety of expansion slots, including AGP for graphics cards and PCI slots for additional peripherals. This expandability was crucial for businesses needing to adapt or enhance their systems over time. Integrated Intel graphics were standard, but users could opt for dedicated graphics cards to meet more demanding graphical needs.

Connectivity was also a strong point for the GX240, featuring multiple USB 2.0 ports, a serial port, and audio input/output capabilities. These ports allowed for seamless integration with various peripherals and devices, essential for a productive work environment. The GX240 also supported network connectivity through a built-in Ethernet controller, making it well-suited for office use, especially in networked environments.

In terms of software, the GX240 was usually shipped with Microsoft Windows XP, ensuring users had access to a stable and user-friendly operating system. This operating system not only provided compatibility with a wide range of applications but also enhanced the overall user experience.

In conclusion, the Dell GX240 was a solid desktop choice for businesses in the early 2000s, combining performance, upgradability, and a compact design. Its Intel Pentium 4 processor and ample memory options made it suitable for various tasks, while its space-saving design and expansion capabilities allowed businesses to adapt the system to their evolving needs.