8.Lift the latch on the right side access panel. (Figure 1B)

9.Gently lower the access panel until it lies flat. To avoid scratching the case, lower the panel onto a soft, clean cloth. (Figure 2)

Warning: If you see any lights glowing on the main logic board, the computer has not been shut down. Close the side access panel and shut down the computer before proceeding.

Removing the Installed Card

1. Disconnect the SCSI ribbon cable from the SCSI card. (Figure 3A)

2 Using a Phillips screwdriver, remove the card’s mounting screw. (Figure 3B)

3. Gently pull up the card and remove it from the PCI slot.

Installing the Replacement Card

1Taking care not to touch the gold connector or any of the components on the card, remove the replacement SCSI card from its static-proof bag and hold it by its corners.

2.Align the card’s connector with the expansion slot and press down until the connector is inserted all the way into the slot.

•Install the card in the same slot used for the original card.

•Don’t rock the card; instead press it straight into the slot.

•Don’t force the card. If you meet a lot of resistance, pull the card out. Check for damage or obstructions, and then reinsert the card.

•Pull the card gently to see if it is properly connected. If it stays in place, and if its gold connectors are barely visible, it is connected.

3.Replace the card’s mounting screw and tighten it to secure the card.

4.Reconnect the SCSI ribbon cable to the card.

Closing the Computer

1.Raise the side access panel, lift the latch, and press the panel against the case until it snaps securely into place.

2.Reconnect all cables and restart your computer.

Warning: Never turn on your computer unless all of its internal and external parts are in place and it is closed. Operating the computer when it is open or missing parts can damage your computer or cause injury.

Power Mac G4 SCSI Card - 2

Page 1 Page 3
Page 2
Image 2
Apple SCSI Card warranty Removing the Installed Card, Installing the Replacement Card, Closing the Computer
Page 1 Page 3

SCSI Card specifications

The Apple SCSI Card is a significant expansion card that was designed to extend the capabilities of various Apple Macintosh computers by providing SCSI (Small Computer System Interface) connectivity. Introduced in the late 1980s, this card allowed users to connect a variety of SCSI devices, including hard drives, scanners, and printers, significantly enhancing the functionality of their systems.

One of the main features of the Apple SCSI Card is its ability to support multiple SCSI devices. This capability is achieved through SCSI's intrinsic nature of allowing up to seven devices on a single bus. The card utilizes a 50-pin connector to facilitate connections with external SCSI devices, providing a standardized interface that was widely adopted in the computing industry.

The Apple SCSI Card operates at a speed of 5 MB/s, making it suitable for the data transfer needs of the time when it was introduced. Although this speed might seem modest by today’s standards, it was quite adequate for the multimedia applications that were burgeoning in the late 1980s and early 1990s. This speed was particularly beneficial for users who needed to transfer large files such as graphics and video, which were becoming more prevalent in the Macintosh ecosystem.

In terms of compatibility, the Apple SCSI Card was designed to work seamlessly with a variety of Macintosh models, including the Macintosh II series and later models. The installation process was relatively straightforward, allowing users to quickly incorporate it into their systems. Its integration into the operating system was also well-implemented, enabling users to easily manage and configure connected SCSI devices without extensive technical knowledge.

The SCSI architecture allowed users to daisy-chain devices, simplifying the process of adding peripherals as their storage or data needs expanded. This flexibility was a substantial advantage, helping to future-proof many Macintosh setups at the time.

In summary, the Apple SCSI Card was an essential tool for Macintosh users looking to enhance their computer systems with SCSI technology. Its ability to connect multiple devices, impressive data transfer speeds, and broad compatibility with various Mac models established it as a fundamental component in the evolution of computer peripherals, paving the way for more advanced connectivity solutions in the years to come.
Top Page Image Contents