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Take Apart
Top Housing
Top Housing - 1
Captive
Screw
Top Housing
No preliminary steps are required before you begin this procedure.
1 Loosen the four captive screws on the rear panel.
2
Caution
: Be careful that you don’t deform the metal dome-shaped shield inside the top housing.
Slide the top housing forward about 1/2 inch and lift the top housing.
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Frequently Answers and Questions
What is the primary operating system for PowerPC processor-based Macintosh computers?
System 7, which has been optimized for the PowerPC processor.
What are the benefits of using a PowerPC-based Macintosh system?
It offers compatibility with 680x0-based systems, runs both 680x0 and native PowerPC applications simultaneously, and provides two to four times the performance of the fastest 68040- and 80486-based personal computers.
What should be done if a Power Macintosh system does not power up?
Reset the logic board.
Can composite RAM SIMMs be used in Power Macintosh computers?
No, noncomposite RAM SIMMs only can be used, and they must be installed in like pairs.
What is the purpose of the HDI-45 connector on the logic board?
It connects to a variety of devices, including audio input and output devices, video output devices, and monitor ID sense lines.
What is Apple RAID software?
It protects data from loss during a disk failure and enhances the speed of data storage and retrieval by using disk mirroring or disk striping.
What is the CPU of the 8100/80 and 8150 models?
80, 100 or 110 MHz PowerPC 601 RISC microprocessor.
What is the cache memory of the 8100/80 and 8150 models?
32K of on-chip cache memory.
What system software version is required for the 8100/80 and 8150 models?
System software version 7.1.2 or later.
What is the CPU of the 8100/100, 8100/110 and 8150/110 models?
80, 100 or 110 MHz PowerPC 601 RISC microprocessor.
What system software version is required for the 8100/100, 8100/110 and 8150/110 models?
System software version 7.5 or later.
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