Power Macintosh 7100 Series Power Macintosh 7100/66, 7100/66AV, 7100/80, 7100/80AV
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Basics Power Macintosh 7100 Series
Basics
Power Macintosh System Overview - 1
Power Macintosh System Overview PowerPC microprocessors are a family of processors built on reduced instruction-set computing (RISC) technology. RISC processors streamline the internal workings of computers. Whereas traditional (complex instruction-set computing, or CISC) processors contain a wide variety of instructions to handle many different tasks, RISC processors contain only those instructions that are used most often. When a complex instruction is needed, a RISC processor builds it from a combination of basic instructions. RISC processors are designed to execute these basic instructions extremely quickly. The performance gains achieved by speeding up the most-used instructions more than compensate for the time spent creating less-used instructions.
Basics
Power Macintosh System Overview - 2 Previously, RISC technology had been used only in high-end workstations and commercial database servers. With the introduction of Macintosh PowerPC computers, Apple succeeded in bringing RISC technology to personal computing.
Key Points Three key points to remember about a PowerPC processorbased Macintosh system: It's a Macintosh; it's compatible; it offers tremendous performance. Apple's PowerPC computers feature the same user interface as their 680x0-based predecessors. Users can mix RISCbased and 680x0-based Macintosh systems on the same network and exchange files and disks between them. In addition, users can run both 680x0 and native PowerPC applications on the same Power Macintosh system simultaneously.
Basics
Power Macintosh System Overview - 3 Compatibility is not limited just to applications. INITs, CDEVs, drivers, and other Macintosh utility software also work on PowerPC processor-based Macintosh systems. So do AppleTalk devices (such as printers), SCSI devices (such as hard drives and scanners), ADB devices (such as mice, trackballs, and keyboards), and other Macintosh cards and peripherals. The primary operating system for PowerPC processorbased Macintosh computers is System 7. The operating system has been optimized for the highest performance on the PowerPC processor. This optimization of System 7 benefits applications written for 680x0 systems as well as those developed specifically for PowerPC processor-based systems. And while PowerPC-based Macintosh systems running native applications offer two to four times the performance
Basics
Power Macintosh System Overview - 4 of the fastest 68040- and 80486-based personal computers, the real promise of PowerPC technology is that it enables Apple and other developers to deliver new software capabilities on Macintosh systems that were previously available only on high-end workstations.
Troubleshooting Tips When troubleshooting Power Macintosh systems, keep in mind the following: 1
2
If a Power Macintosh system does not power up, you should first attempt to reset the logic board. Instructions are provided in the Additional Procedures chapter.
With Power Macintosh computers, you must install noncomposite RAM SIMMs only, and the RAM SIMMs must be installed in like pairs (that is, the same size and speed). Additional troubleshooting information is
Basics
Power Macintosh System Overview - 5 provided in the Symptom Charts section of the Troubleshooting chapter under the "System" topic heading.
3
4
If a Power Macintosh system has bad RAM SIMMs installed, you will not hear death chimes. Instead, a dialog box will appear alerting you to the fact that a bad RAM SIMM has been detected. Additional troubleshooting information is provided in the Symptom Charts section of the Troubleshooting chapter under the "System" topic heading. If the system hangs shortly after installing a new NuBus card, contact the vendor to verify that the card is compatible with the Power Macintosh system or to see if there is a software upgrade available. If the NuBus card is an Apple manufactured product, refer to the Service Tech Info Library for more information.
Basics 5
Power Macintosh System Overview - 6 The Power Macintosh AV systems use the same logic board as the non-AV versions. The only difference is that the AV versions have the Power Macintosh AV Card installed in the PDS slot. The Power Macintosh 7100/66 and 7100/80 systems must have a video card installed in the PDS slot. These systems use the Power Macintosh 2 MB Video Card. A missing card can result in a system that won't boot or a system that crashes.
Basics
HDI-45 Pinouts - 7
HDI-45 Pinouts This section includes an illustration of the HDI-45 connector and a table containing the pinout descriptions.
Green video output (75) Video input power ground Power for camera +5 V Reserved Reserved Reserved Reserved Monitor ID sense line 3 S-video input luminance (Y) (continued) S-video input shield
S-video input chroma (C) Reserved Reserved Reserved Reserved Red ground (shield) I 2C data signal Reserved
Red video output (75) I 2C clock signal Monitor ID
(continued)
Basics Pin 32 33 34 35 36 37 38 39 40 42 41 Description Vertical sync signal ADB power +5 V ADB ground ADB data Monitor ID
HDI-45 Pinouts - 11
Composite sync signal
Keyboard switch Reserved Reserved
Horizontal sync signal (continued)
Monitor ID
Basics Pin 43 44 45 Description Video sync ground Blue ground (shield)
HDI-45 Pinouts - 12
Blue video output (75)
Basics
Rear Panel Connectors - 13
Rear Panel Connectors The figure on the following page shows the rear panel of a Power Macintosh 7100 computer with a 2 MB Video Card installed. The AV version of the Power Macintosh 7100 would have a Power Macintosh AV Card installed instead of the 2 MB Video Card. In addition to a DB-15 connector, the AV Card includes an S-Video Input and an S-video Output port.
Basics DB-15
Rear Panel Connectors - 14
Power On
SCSI
Ethernet HDI-45 Video
ADB Modem Printer
Sound In Sound Out
Power Macintosh 7100 Rear Panel
Basics
Logic Board Connectors - 15
Logic Board Connectors The figure on the following page shows a Power Macintosh 7100 Series logic board.
Basics Power On/Off Switch SCSI Ethernet
Logic Board Connectors - 16 DRAM SIMMs
AV Display Connector Serial Ports ADB Sound In Sound Out 601 L2 Cache 601 Soldered PDS Slot DRAM 4 MB ROM
Power Macintosh 7100 Logic Board
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Specifications Power Macintosh 7100 Series
Specifications
Processor - 1
Processor CPU Built-in MMU and FPU 32K of on-chip cache memory 66 MHz PowerPC 601 RISC microprocessor Requires system software version 7.1.2 or later 80 MHz PowerPC 601 RISC microprocessor Requires system software version 7.5 or later Note: To run System 7.5 on the Power Mac 7100/80, you must install enabler version 1.1.1 or later. This version of the system software, which ships with the unit, requires Finder version 7.1.5. You can verify that you have the correct Finder version installed by using the "Get Info" command.
7100/66:
7100/80:
Specifications
Memory - 2
Memory RAM 8 MB RAM soldered on logic board, expandable to 136 MB via 4 SIMM sockets on logic board (using pairs of same size, 80 ns or faster, 72-pin noncomposite SIMMs); 16 MB configuration has two 4 MB SIMMs installed Note: SIMMs must be installed in pairs of the same size and speed. Install noncomposite SIMMS only.
ROM
4 MB installed on SIMM socket
Specifications
Memory - 3
VRAM 7100/66 & 7100/80: 7100/66AV & 7100/80AV: 1 MB, expandable to 2 MB using four 256K VRAM SIMMs 2 MB
Cache 7100/66: 7100/80: 32K of on-chip cache; optional 256K level 2 cache available 32K of on-chip cache; 256K level 2 cache standard CMOS custom chip with long-life lithium battery
Clock/calendar
Specifications
Disk Storage - 4
Disk Storage Hard Drive 7100/66: 7100/80: 250 MB or 500 MB hard drive 500 MB or 700 MB hard drive
CD-ROM 7100/66: 7100/66AV: 7100/80 & 7100/ 80AV: Optional internal CD-ROM drive Internal AppleCD 300i Plus CD-ROM drive Internal AppleCD 300i Plus CD-ROM drive standard on some models and optional on others
Specifications
Disk Storage - 5 1.4 MB Apple SuperDrive Manual Insert
Floppy Drive
Specifications
I/O Interfaces - 6
I/O Interfaces SCSI One SCSI port; DB-25 connector Supports a maximum of six external devices (five when internal CD-ROM is installed) Two RS-232/RS-422 LocalTalk/GeoPort serial ports; mini DIN9 connectors (backward compatible with mini DIN-8 connectors) One Apple Desktop Bus (ADB) port; mini-Din-4 connector Maximum power draw 500 mA; maximum of three devices total One built-in AUUI-15 Ethernet port
Serial
Apple Desktop Bus
Ethernet
Specifications
I/O Interfaces - 7 One processor-direct slot (PDS); 182-pin connector Three NuBus slots support standard size cards; 96-pin Euro-DIN connectors 16-bit stereo in and out Sample rates of 48, 44.1, 24, and 22.05 kHz Input/output line level: 1 V peak-to-peak Input/output signal-to-noise ratio (SNR): 82 dB with no audible discrete tones Bandwidth: 20 Hz20 kHz (± 2 dB) at 44.100 kHz sample rate THD+N (total harmonic distortion plus noise): less than 0.05%, measured 20Hz20 kHz with a 1-Vrms sine wave input
Expansion Slot NuBus
Sound
Specifications
I/O Interfaces - 8 One HDI-45 DRAM-based video port on logic board supports direct connection to Apple AudioVision monitors and with optional HDI-45 to DB-15 adapter supports 12", 13", 14", 15" portrait, 16", and 17" monitors Also has a Power Macintosh 2 MB Video Card with one DB-15 VRAM-based video port that supports 12", 13", 14", 15" portrait, 16", and 17", 20", and 21" monitors Also has a Power Macintosh AV Card with the following: one DB15 VRAM-based video port that supports 12", 13", 14", 15" portrait, 16", and 17", 20", and 21" monitors; one S-video/ composite input port; and one S-video composite output port Note: Only one monitor can be attached to the card at one time (that is, either through the DB-15 port or the S-video port).
Video
7100/66 & 7100/80:
7100/66AV & 7100/ 80AV:
Specifications
I/O Devices - 9
I/O Devices Keyboard Standard, extended, or adjustable keyboard Keyboard draws 2580 mA, depending on model of keyboard ADB Mouse II; Draws up to 10 mA
Mouse Microphone 7100/66:
Optional Apple PlainTalk microphone; unidirectional and optimized for use with speech recognition Apple PlainTalk microphone standard
7100/66AV, 7100/80 & 7100/80AV:
Specifications
Video Display - 10
Video Display Video Support System must have the Power Macintosh 2 MB Video Card or Power Macintosh AV Card installed All Power Macintosh 7100 series computers support monochrome, color, VGA, and SVGA formats on the HDI-45 logic board connector, including: · · · · · · · Macintosh 12" Monochrome Display (640 x 480) Macintosh 12" RGB Display (512 x 384) AppleColor High-Res RGB 14" Monitor (640 x 480) Apple AudioVision 14 Display (640 x 480) Macintosh Color Display (640 x 480) Macintosh 15" Portrait Display (640 x 870) Macintosh 16" Color Display (832 x 624)
Specifications
Video Display - 11 All Power Macintosh 7100 series computers also support the following monitors via the DB-15 connector on their respective video cards: · Macintosh 19" Color Display (1024 x 768) · Apple Multiple Scan 20 Display (1280 x 1024) · Macintosh 21" Color Display (1152 x 870) And the AV versions support the following monitors via the DB-15 connector on the Power Macintosh AV Card: · NTSC (512 x 384 and 640 x 480) · PAL (640 x 480 and 768 x 576)
Video Support (continued)
Specifications
Electrical - 12
Electrical A/C Line Input Voltage Input Line Frequency Input Power 100240 VAC; RMS single phase, automatically configured
5060 Hz
167 W maximum continuous, 230 W peak input (not including monitor power) 112 W continuous output
Power Supply DC Output
Specifications
Physical - 13
Physical Dimensions Height: 6.0 in. (152 mm) Width: 13.0 in. (330 mm) Depth: 16.5 in. (419 mm) 24 lb. (11.3 kg) (Weight will vary based on internal devices installed.)
Weight
Specifications
Environmental - 14
Environmental Operating Temperature Storage Temperature Relative Humidity Altitude 1040° C (50104° F)
40 to 47° C (40 F to 116.6° F)
590% (noncondensing) 03,048 m (010,000 ft.)
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Troubleshooting Power Macintosh 7100 Series
Troubleshooting
General/ - 1
General The Symptom Charts included in this chapter will help you diagnose specific symptoms related to your product. Because cures are listed on the charts in the order of most likely solution, try the first cure first. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the next cure. (Note: If you have replaced a module, reinstall the original module before you proceed to the next cure.) If you are not sure what the problem is, or if the Symptom Charts do not resolve the problem, refer to the Flowchart for the product family. For additional assistance, contact Apple Technical Support.
Troubleshooting
Symptom Charts/Power Supply - 2
Symptom Charts Power Supply System does not power up 1 2 3 4 Reset logic board. (Refer to Additional Procedures.) Reseat ROM SIMM and cache SIMM. Replace power supply. Replace logic board.
Troubleshooting
Symptom Charts/Error Chords - 3
Error Chords One-part error chord sounds during startup sequence 1 2 3 Disconnect hard drive power cable and hard drive data cable. Reboot system. If startup sequence is normal, run Macintosh Hard Disk test and replace hard drive if necessary. Disconnect floppy drive cable and reboot system. If startup sequence is normal, replace floppy drive. Replace logic board. Retain customer's SIMMs.
Troubleshooting
Symptom Charts/System - 4
System Does not power on; screen is black, fan is not running and LED is not lit 1 2 3 4 5 6 7 1 2 Check cables. Plug monitor directly into wall socket, and verify that monitor has power. Reset logic board. (Refer to Additional Procedures.) Reseat ROM SIMM and cache SIMM. Replace power cord. Replace power supply. Replace logic board. Replace power supply. Replace logic board. Retain customer's SIMMs.
Clicking, chirping or thumping
Troubleshooting
Symptom Charts/System (Continued) - 5
System (Continued) System shuts down intermittently 1 2 3 4 5 Check that air vents are clear. Thermal protection circuitry may shut down system. After 30 to 40 minutes, system should be OK. Replace power cord. Check batteries. Refer to "Battery Verification" in Additional Procedures. Replace power supply. Replace logic board. Retain customer's SIMMs.
Troubleshooting
Symptom Charts/System (Continued) - 6
System (Continued) System intermittently crashes or locks up 1 2 Verify that system software is version 7.1.2 or later. Verify SIMMs are noncomposite and installed in like pairs (same size/speed). 3 Verify that software is known-good. 4 Verify that software is Power Macintosh compatible (contact developer). 5 Verify that a video card is installed in the PDS slot. 6 Clear parameter RAM. Hold down