Apple G3 Minitower manual Scsi system cable

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See the instructions that came with each SCSI device for information on checking and setting its SCSI ID number.

Important If you use two or more devices attached to the SCSI interface with the same ID number, your computer will not start up properly, your equipment may malfunction, and you may lose data as a result.

Use the Right Type and Length of Cable

To attach a SCSI device to your computer or to another device in the chain, always use SCSI cables that are double-shielded, such as Apple SCSI cables. Never use printer-type RS-232 cables (commonly used with DOS and Windows computers).

Poor-quality SCSI cables are often the cause of SCSI problems. Avoid mixing brands and types of SCSI cables.

If the device is the first or only one you’re connecting, use a SCSI system cable to connect it to the computer’s SCSI port. If the device is not the first one, use a SCSI peripheral interface cable to connect it to the last device in the chain.

SCSI system cable

SCSI peripheral interface cable

Keep the cables between SCSI devices as short as possible. Cables 18 to 24 inches long are best. PowerBooks and some SCSI devices (particularly scanners) may not be able to handle cables longer than 24 inches.

Important The total length of the cables in a SCSI chain should not exceed 6 meters (about 20 feet). SCSI cables must have a 110-ohm impedance. For best results, use SCSI cables manufactured by Apple Computer.

Terminate the SCSI Chain Properly

To ensure accurate transmission of information, a terminator must be present at each end of a SCSI chain. When you connect external SCSI devices, make sure that only the last external device in the chain has a terminator. (The second terminator at the beginning of the SCSI chain is inside your computer.)

Important In almost all cases, only the first and last devices in the SCSI chain should be terminated, with one exception noted later in this section. Make sure that no external SCSI device but the last one has a terminator.

Using Your Macintosh and Connecting Additional Equipment

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Contents Setting Up Your Computer Sometimes built into the monitor Positioning and Plugging In the Computer Setting Up Your Computer230 Power cord socket Power cord plugTo connect the monitor, follow these steps Connecting a MonitorMonitor port Monitor power socketPlug the mouse cable into the keyboard Connecting the Mouse and the Keyboard to the ComputerChapter Connecting a Modem Optional internal modem port RJ-11 Modem port iconModem port icon Modem port Mini DIN-9 Turning the Computer On Problems Turning Your Computer On? Turning the Computer Off What’s Next?Using Your Macintosh Optional Your Computer’s Components and Front Panel ControlsWorks with high-density and double-sided 3.5 floppy disks Optional AV ports Your Computer’s Ports and ConnectorsConnects your Macintosh to a printer or LocalTalk network Using the CD-ROM Drive Using the Computer’s Built-in DrivesTo use your CD-ROM drive, follow these instructions Press the Open/Close button next to the CD-ROM driveConnecting Audio Equipment Using the Floppy Disk Drive and Optional Zip DriveSound Input and Output Ports Stereo miniplug Optional Left and Right RCA-Type Audio PortsConnecting Most Audio Equipment Left and right RCA-type ports accept this type of connectorRCA-type plug RCA plugsSound Output Port Turn on the computer and the audio equipmentConnecting and Using a Microphone Connecting Video Equipment Video connectorYour Macintosh can work with two major video formats Video plug Connecting Video Equipment for Input to the ComputerVideo cable Video Input port Audio input ports Left and rightTurn on the computer and the VCR or camera ÆS-video˜ Composite Video Input port Audio Connecting Video Equipment for Output From the Computer Video connection for output from the computer Connecting a Television Video AudioOutput port Output ports Composite Video Output port Audio output TV Mirroring icon Resolution iconConnecting External Scsi Devices Before You Connect a Scsi DeviceScsi icon Scsi port DB-25 Scsi system cable External Scsi terminator Connecting a Scsi DevicePrinter port icon Printer port Mini DIN-9 Connecting a PrinterConnecting a Second Monitor Connecting an ADB Input DeviceADB port icon ADB port Mini DIN-4 Connecting to a Local Area Network Connecting to a LocalTalk Network LocalTalk adapterLocalTalk cable Printer port LocalTalk adapter LocalTalk cable Ethernet icon 10Base-T Ethernet port RJ-45 Connecting to a 10Base-T Ethernet NetworkConfiguring Your Network Connection Connecting to Multiple Networks SimultaneouslyEthernet port Wall plate 10Base-TSecurity lock port Securing Your ComputerAbout PCI Expansion Cards Installing PCI Cards, Memory Internal Storage DevicesAbout Memory Expansion Card Power RequirementsVideo memory expansion slot Dram Dimm slots ROM slot Front of computerVideo Memory Configurations Dram ConfigurationsImportant Use only Sgram SO-DIMMS About Internal Storage OptionsPin connector Connecting an Additional ATA DeviceConnecting an Internal Scsi Device Opening the Computer Back of computer Disconnect the power cord from the back of the computer Press the button and lift Remove the coverUse the handle to open the chassis Installing a PCI Expansion Card Port access cover in place Shield ConnectorRemove the screw that holds PCI slot Disconnect itInstalling an Unusually Long PCI Card Installing PCI Cards, Memory, and Internal Storage Devices Installing Dram or Video Memory Memory Installing Dram or Video Memory, nextConnectors Notches Sgram SO-DIMM Your DIMM’s shape and components may vary ConnectorsNotch Video memory slotBottom chassis Installing a Hard Disk or Other Storage DeviceCarefully lift up the computer so that it sits upright Remove the plastic faceplateRaised catch Remove both screws Drive carrierScsi device Sheet metal shield Reinstall both screws Replace the plastic faceplateSnap the plastic faceplate back into place Closing the Computer Lock the chassis by rotating the locking levers Replace the computer cover panel What’s Next? Page Musculoskeletal Discomfort Health-Related Information About Computer UseEye Fatigue To prevent discomfort and eye fatigueShoulders relaxed Arranging Your OfficeSafety Instructions Avoiding FatigueWhat About Electromagnetic Emissions? Handling Your Computer Equipment Appendix 125 F 52 C 50 F 10 C Do not touch Keep disks away Handling Floppy DisksExposed part From magnets Disk behindDo not touch Keep disks away Handling Zip DisksHandling CD-ROM Discs To avoid damage to your discs, keep these points in mindDo not expose discs To direct sunlight On discs Do not spill liquidsPower Supply Cleaning Your EquipmentCleaning the Computer Case Cleaning the MonitorHere on your mouse Locking and Unlocking the MouseRecessed area surrounding ring Setting Up Your Power Macintosh Apple Computer, Inc Contents Installing PCI Cards, Memory, and Internal Storage Devices Connecting to Multiple Networks SimultaneouslyAppendix Health, Safety, and Maintenance Tips About MemoryCommunications Regulation Information Vi Laser Information

G3 Minitower specifications

The Apple G3 Minitower, released in 1997, marked a significant evolution in Appleā€™s desktop computer lineup. As part of the G3 series, it was geared towards both professional users and creative enthusiasts, showcasing powerful performance in a compact form factor. This machine was notable for its distinctive design, featuring a sleek, gray plastic enclosure that was both stylish and practical.

At the heart of the G3 Minitower was the innovative G3 processor, which featured a 250 MHz initial speed, and eventually models offered up to 500 MHz. The G3 architecture utilized a combination of RISC (Reduced Instruction Set Computing) technology and sophisticated software optimizations, allowing for increased performance, especially when handling multimedia applications. The system's performance was complemented by the inclusion of the latest technologies at the time, such as PCI expansion slots, enabling users to add graphics cards and other peripherals to enhance functionality.

The standard configuration came with 32 MB of RAM, which was expandable to a maximum of 1 GB. This capacity made it suitable for demanding tasks such as graphic design and video editing, common uses for the target market. Storage options were generous as well, with the G3 Minitower typically coming with a 4 GB hard drive, upgradeable to larger capacities. This component played a vital role in the machine's ability to efficiently store and manage large files associated with multimedia projects.

In terms of connectivity, the G3 Minitower included USB ports, which were becoming increasingly popular in the late 1990s, as well as a built-in modem and Ethernet port for internet connectivity. The Minitower also supported Apple's innovative FireWire technology, allowing for faster data transfer rates, which was especially advantageous for connecting external devices like digital cameras and external hard drives.

The G3 Minitower ran on the Mac OS 8 operating system, giving users access to a user-friendly, robust interface that was ideal for both new and experienced users. With support for a wide range of software applications, it appealed to educators, designers, and developers alike.

Overall, the Apple G3 Minitower represented a significant leap in desktop computing for Apple and firmly established the G3 architecture as a cornerstone of their product offerings for years to come. Its powerful performance, expandability, and design made it a beloved choice among Mac enthusiasts of the era, embodying the spirit of innovation that Apple was known for.