6Restart your computer while holding down the Command (x) and Option keys.

Hold down the x and Option keys until you see the dialog box that asks if you’re sure you want to rebuild your desktop file. When the dialog box appears, you can release the keys.

7Click OK.

The desktop is rebuilt.

IMPORTANT Do not stop the desktop-rebuilding process. Doing so could corrupt your system files.

8Open the Extensions Manager control panel by choosing Control Panels from the Apple (K) menu. When the Control Panels window appears, double-click the Extensions

Manager icon.

9From the Sets pop-up menu, choose the name you gave your set of extensions in step 3.

This turns your original set of extensions back on.

10 Restart your computer to activate the extensions.

Solutions to common problems

This section contains descriptions of problems you could experience with your computer. Some problems may be caused by your CD-ROM drive, so if you don’t find your problem here, be sure to check the section, “Solutions to CD-ROM Problems,” later in this chapter.

The computer is turned on but the screen is dark.

One of the following is probably the cause:

mYou have a screen saver program that darkens the screen when the computer has not been used for a certain period.

Press a key or move the mouse to turn off the screen saver.

mYour computer has gone to sleep due to inactivity. “Wake it up” by pressing the power key (marked with a triangle) on the keyboard.

mThe screen control buttons (ü) are not adjusted properly. Press the right screen control button to lighten the screen.

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Apple 5400 Series manual Solutions to common problems, This turns your original set of extensions back on

5400 Series specifications

The Apple 5400 series, released in the mid-1990s, was a significant milestone in Apple's line of Macintosh computers. Characterized by its all-in-one design, this series was particularly popular for its blend of style, functionality, and performance. The 5400 series aimed to provide users with an accessible and seamless computing experience, making it appealing to both home users and education markets.

One of the standout features of the Apple 5400 series was its aesthetically pleasing design. The compact form factor housed all essential components, including the monitor, CPU, and storage, allowing for a cleaner workspace. Its unique design included a swivel base that enabled users to adjust the monitor's angle easily. The 5400 series boasted a 15-inch display with a resolution of 640x480 pixels, providing clear and vibrant visuals suitable for both productivity and entertainment.

Under the hood, the 5400 series was powered by the PowerPC 603e processor, which operated at speeds varying between 180 MHz and 240 MHz. This processing power was complemented by a bus architecture that supported speeds of 60 MHz, enhancing the overall responsiveness of the system. With options for 16 MB or 32 MB of RAM, expandable to 128 MB, the 5400 series offered enough memory for multitasking and running resource-intensive applications, a key requirement during that technological era.

The Apple 5400 series featured a range of innovative technologies that set it apart from competitors. It came equipped with an ADB port for connecting keyboards and mice, as well as several expansion slots for peripherals. Notably, the inclusion of an integrated CD-ROM drive made it one of the first in its class, allowing users to access software and multimedia content easily. Additionally, it supported Appleā€™s QuickTime technology, enabling users to experience multimedia applications with video and sound.

Another notable characteristic of the 5400 series was its commitment to connectivity. It shipped with a built-in modem and included Ethernet capabilities, making it easier to connect to networks, surf the emerging internet, and share files. This level of connectivity was essential as the online landscape began expanding in the mid-90s.

In summary, the Apple 5400 series represented a well-rounded approach to personal computing in its time. With its stylish design, robust features, and commitment to both performance and connectivity, it carved out a dedicated user base. Though ultimately phased out with the evolution of technology, the legacy of the 5400 series continues to influence modern computing design and functionality.