K Service Source Power Macintosh 8200 and 8500 Series/WS 8550 Power Macintosh 8200 Series (Europe Only), 8500 Series, and WS 8550 Series
K Service Source Basics Power Macintosh 8200 and 8500 Series/WS 8550 Series
Basics Overview - 1 Overview This manual covers the Power Macintosh 8200 Series (available only in Europe), the Power Macintosh 8500 Series, and the WorkGroup Server 8550 Series computers. These computers all share the same form factor as the earlier Power Macintosh 8100. Power Macintosh 8200 Series The Power Macintosh 8200 Series computers are available only in Europe. There are two versions of the Power Macintosh 8200, the Power Macintosh 8200/100 and the 8200/120.
Basics Overview - 2 • • • • • • • • • • • 256K level 2 cache 16 MB of DRAM, expandable to 256 MB Three PCI expansion slots SCSI DMA bus that supports up to four external and three internal SCSI devices Built-in AAUI and 10BASE-T Ethernet support Support for AppleTalk and TCP/IP networking protocols Two GeoPort serial ports AppleCD™ 600i 4x CD-ROM drive 16-bit stereo sound input/output 1 MB of soldered VRAM Mac™ OS system software 7.5.
Basics Overview - 3 Power Macintosh 8500/WS 8550 The Power Macintosh 8500 and Workgroup Server 8550 feature three PCI expansion slots, a removable 604 microprocessor card, and, in addition, the Power Macintosh 8500 features video in and out functionality standard.
Basics Overview - 4 • • • • • 2 MB of VRAM, expandable to 4 MB 24-bit composite and S-video input and output Built-in AAUI and 10BASE-T Ethernet Two GeoPort serial ports AppleCD™ 600i 4x CD-ROM drive or 1200i 8x CD-ROM drive (8500/150 8x CD and 8500/180) • 1.4 MB floppy drive • CD-quality stereo sound in/out • Mac™ OS system software 7.5.2 (8500/120) or 7.5.3 (8500/132 and 8500/150) or 7.5.
Basics Overview - 5 • 24 MB of DRAM, expandable to 512 MB using 168-pin, 70 ns, 64-bit DIMMs • Two SCSI DMA buses supporting up to eight SCSI devices and transfers up to 10 MB/s (internal bus only) • Three PCI expansion slots • Built-in AAUI and 10BASE-T Ethernet • Two GeoPort serial ports • AppleCD™ 600i or 1200i CD-ROM drive • 2 GB hard drive, with bracket and cable for a second drive (support for array drives) • DDS-2 DAT drive (optional) • 1.
Basics Configurations - 6 Configurations The Power Macintosh 8500/120 comes standard with • • • • • • 120 MHz PowerPC 604 microprocessor card 16 MB of DRAM 256K Level 2 cache DIMM 1 GB or 2 GB hard drive AppleCD 600i CD-ROM drive 2 MB of VRAM The Power Macintosh 8500/132, 8500/150, and 8500/180 come standard with • 132, 150, or 180 MHz PowerPC 604 microprocessor card • 16 MB of DRAM (8500/132) and 16 or 32 MB of DRAM (8500/150 and 8500/180) • 256K Level 2 cache DIMM
Basics Configurations - 7 • 1.
Basics PowerPC 601 Microprocessor - 8 PowerPC 601 Microprocessor The Power Macintosh 8200 Series computers feature the PowerPC 601 RISC microprocessor built onto the logic board.
Basics PowerPC 604 Microprocessor - 9 PowerPC 604 Microprocessor The Power Macintosh 8500 and WS 8550 computers feature the PowerPC 604 RISC microprocessor. The PowerPC 604 microprocessor is installed via a card that plugs into the logic board, allowing for maximum flexibility with future upgrades.
Basics Peripheral Component Interconnect (PCI) - 10 Peripheral Component Interconnect (PCI) The Power Macintosh 8200 Series, Power Macintosh 8500 Series, and WS 8550 computers offer a Peripheral Component Interconnect (PCI) expansion bus. Because the PCI bus is an industry standard, most existing PCI 2.0compliant cards (with the addition of a Mac OS-specific software driver) will work in these computers.
Basics Dual In-Line Memory Modules (DIMMs) - 11 Dual In-Line Memory Modules (DIMMs) The Power Macintosh 8200 Series, Power Macintosh 8500 Series, and WS 8550 computers use DRAM Dual In-Line Memory Modules (DIMMs) instead of DRAM SIMMs. Whereas SIMMs have 72 pins, DIMMs have 168 pins. The extra pins provide a 64-bit data path, compared to a 32-bit data path for SIMMs. In addition, DIMMs do not have to be installed in pairs like the SIMMs on earlier Macintosh models.
Basics Memory Configurations - 12 Important: These computers also use VRAM DIMMs (112pin 70 ns or faster) instead of VRAM SIMMs. The VRAM SIMMs used in earlier Power Macintosh models are not compatible. Memory Configurations Following is the memory configuration information for the computers covered in this manual. Power Macintosh 8200 Series The Power Macintosh 8200 Series logic boards have four DRAM DIMM slots, each with a 64-bit data bus.
Basics Memory Configurations - 13 Note: These computers do not have any main memory soldered to the logic board. At least one DRAM DIMM must be present for the computer to operate. DRAM DIMMs can be installed individually or in pairs. These computers support linear memory only; therefore, no memory gains are seen when two DIMMs of the same size are installed (that is, memory interleaving is not supported on the Power Macintosh 8200 Series computers).
Basics Memory Configurations - 14 4 3 2 1 Figure: PM 8200 Series DRAM DIMM Slots
Basics Memory Configurations - 15 Power Macintosh 8500 Series/WS 8550 The Power Macintosh 8500 and WS 8550 logic boards have eight DRAM DIMM slots, each with a 64-bit data bus. You can increase the DRAM to a total of 512 MB using 5-volt, 64-bit-wide, 168-pin fast-paged mode, 70 ns DIMMs. Note: These computers do not have any main memory soldered to the logic board. At least one RAM DIMM must be present for the computers to operate.
Basics Memory Configurations - 16 For a pair of DIMMs to function as a single 128-bit wide pair, they must be the same type and size. Note: DIMMs purchased from different manufacturers can be paired as long as they are the same size and speed. The drawing on the next page illustrates where the DRAM slots are located on the Power Macintosh 8500 and WS 8500 logic boards and how they are numbered.
Basics Memory Configurations - 17 B4 slot B3 slot B2 slot B1 slot A4 slot A3 slot A2 slot A1 slot (front of computer) Figure: PM 8500 and WS 8550 DRAM DIMM Slots
Basics Ethernet Support - 18 Ethernet Support There are two Ethernet ports on the Power Macintosh 8200, Power Macintosh 8500, and WS 8550 logic boards: an AAUI port and a 10BASE-T port. You can use only one Ethernet port at one time, however. If you have cables plugged into both Ethernet ports, the computer uses the 10BASE-T port by default.
Basics GeoPort - 19 GeoPort Geoport is a hardware and software communications architecture that has been optimized for computertelephony integration. It has three main attributes: • It lets any computer connect to any telephone (analog or digital, public or private) anywhere in the world. • Once connected, it supports an arbitrary number of independent data streams up to a total bandwidth of 2 MB/second.
Basics PC Compatibility Cards - 20 By attaching an Apple GeoPort Telecom Adapter to these computers, you can enjoy all the features of a 14.4 modem, including data, fax, send and receive, and voice capabilities. The GeoPort Telecom Adapter serves as a line interface to standard (analog) telephone lines. The adapter is capable of sending or receiving data at up to 14.4 kbps and faxes at up to 9600 bps using the GeoPort Telecom Adapter software.
Basics The Cuda Chip - 21 The Cuda Chip The Cuda is a microcontroller chip. Its function is to • Turn system power on and off • Manage system resets from various commands • Maintain parameter RAM (PRAM) • Manage the Apple Desktop Bus (ADB) • Manage the real-time clock Many system problems can be resolved by resetting the Cuda chip (see Symptom Charts for examples). Press the Cuda reset button on the logic board to reset the Cuda chip.
Basics Resetting the Logic Board - 22 Resetting the Logic Board Resetting the logic board can resolve many system problems (refer to "Symptom Charts" for examples). Whenever you have a unit that fails to power up, you should follow this procedure before replacing any modules. 1 Unplug the computer. 3 Using a small flat-blade screwdriver, pry open the latch at the end of the battery holder and lift off the battery holder cover. 2 4 Remove the logic board.
Basics Resetting the Logic Board - 23 5 6 7 Verify the power supply cable is disconnected from the logic board and then press the Power On button. (See "Logic Board Diagram" later in this chapter to locate the Power On button.) Wait at least 10 minutes before replacing the battery. Make sure the battery is installed in the correct +/direction. Reassemble the computer and test the unit. Note: This procedure resets the computer’s PRAM.
Basics Fast SCSI - 24 Fast SCSI The Power Macintosh 8500 and WS 8550 computers offer Fast SCSI support on the internal SCSI connector, which provides for significantly enhanced data throughput. The internal SCSI bus on these computers supports transfer rates up to 10 MB/sec.
Basics Rear View Diagram - 25 Rear View Diagram The Power Macintosh 8200 and WS 8550 computers offer the following external ports: SCSI, AAUI and 10BASE-T Ethernet, serial printer (GeoPort compatible), serial modem (GeoPort compatible), DB-15 video, ADB, sound input, and sound output. The drawing on the following page illustrates the back panel of the Power Macintosh 8200 and WS 8550 computers.
Basics Rear View Diagram - 26 SCSI AAUI Ethernet 10 BASE-T Ethernet Printer Modem Monitor ADB Sound in Sound out Figure: Power Macintosh 8200 and WS 8550 Rear Panel
Basics Rear View Diagram - 27 In addition to the ports shown on the previous page, the Power Macintosh 8500 offers composite video input and output, S-video input and output, audio input (left and right), and audio output (left and right) ports. The drawing on the following page illustrates the back panel of the Power Macintosh 8500 computer.
Basics Rear View Diagram - 28 SCSI AAUI Ethernet 10 BASE-T Ethernet Printer Modem Monitor ADB Sound in Sound out S-video Composite video Audio output (left &right) Figure: Power Macintosh 8500 Rear Panel Audio input (left & right)
Basics Logic Board Diagram - 29 Logic Board Diagram The following graphics illustrate the connectors on the Power Macintosh 8500, WS 8550, and Power Macintosh 8200 logic boards. Note: Some versions of the logic board have a ROM SIMM while other versions have the ROM soldered on the logic board.
Basics Logic Board Diagram - 30 External SCSI Internal Power CD Floppy 3.
Basics Logic Board Diagram - 31 External SCSI Internal Power CD Floppy 3.
Basics Logic Board Diagram - 32 Internal Power SCSI Supply CD Floppy 3.
Basics Repair Strategy - 33 Repair Strategy Service the Power Macintosh 8500 and WS 8550 computers through module exchange and parts replacement. Customers can request on-site service from an Apple Authorized Service Provider Plus (AASP+) or Apple Assurance. They can also choose carry-in service from an AASP. Ordering Apple Service Providers planning to support the Power Macintosh 8500 and WS 8550 computers may purchase Service modules and parts to develop servicing capability.
Basics Ordering - 34 Large businesses, universities, and K-12 accounts must provide a purchase order on all transactions, including orders placed through the AppleOrder system. Service providers not enrolled in AppleOrder may fax their orders to Service Provider Support (512-908-8125) or mail them to Apple Computer, Inc. Service Provider Support MS 212-SPS Austin, TX 78714-9125 If you have further questions, please call Service Provider Support at 800-919-2775 and select option #1.
Basics Warranty and AppleCare - 35 Warranty and AppleCare The Power Macintosh 8500 and WS 8550 computers are covered under the Apple One-Year Limited Warranty. The AppleCare Service Plan is also available for these products. Service Providers are reimbursed for warranty and AppleCare repairs made to these computers. For pricing information, refer to "Service Price Pages.
K Service Source Specifications Power Macintosh 8200 and 8500 Series/WS 8550 Series
Specifications Processor - 1 Processor CPU PM 8200 PM 8500 PowerPC 601 RISC microprocessor running at 100 or 120 MHz Built-in FPU and 32K cache Requires system software version 7.5.3 or later with appropriate System Enabler PowerPC 604 RISC microprocessor running at 120, 132, 150 or 180 MHz Built-in FPU and 32K cache Requires system software version 7.5.2 or later (8500/120), 7.5.3 or later (8500/132 and 8500/150) with appropriate System Enabler, and 7.5.
Specifications WS 8550 Processor - 2 PowerPC 604 RISC microprocessor running at 132 or 200 MHz Built-in FPU and 32K cache Requires system software version 7.5.3 or later with appropriate System Enabler (8550/132) or 7.5.
Specifications Memory - 3 Memory DRAM PM 8200/100 and 8200/120 8 MB or 16 MB standard; expandable to 256 MB Uses 168-pin, 64-bit, 70 ns or faster DRAM DIMMs PM 8500/120 and 8500/132 16 MB standard; expandable to 512 MB Uses 168-pin, 64-bit, 70 ns or faster DRAM DIMMs PM 8500/150 and 8500/180 16 or 32 MB standard; expandable to 512 MB Uses 168-pin, 64-bit, 70 ns or faster DRAM DIMMs WS 8550 24 MB standard; expandable to 512 MB Uses 168-pin, 64-bit, 70 ns or faster DRAM DIMMs
Specifications ROM Cache Memory - 4 4 MB ROM (may be installed in ROM SIMM slot, or soldered on the logic board) PM 8200 256K Level 2 cache DIMM PM 8500 256K Level 2 cache WS 8550 512K Level 2 cache Clock/Calendar CMOS custom circuitry with long-life battery
Specifications I/O Interfaces - 5 I/O Interfaces SCSI PM 8500 and WS 8550 Dual-channel asynchronous SCSI interface; external channel supports up to seven SCSI devices Internal channel supports a hard disk array Serial Two RS-232/RS-422 serial ports compatible with LocalTalk and GeoPort cables; mini DIN-8 connectors ADB One Apple Desktop Bus port for a keyboard, mouse, etc.
Specifications Expansion I/O Interfaces - 6 Three PCI expansion slots, compatible with all PCI 2.
Specifications I/O Devices - 7 I/O Devices Keyboard Standard, extended, or adjustable keyboard; keyboard draws 25-80 mA, depending on model type Mouse ADB Mouse II; mouse draws up to 10 mA Microphone Apple PlainTalk microphone standard
Specifications Video Support - 8 Video Support Table 1: PM8500 and WS 8550 Video Support PIXEL DEPTHS MONITOR DISPLAY SIZE 2 MB VRAM 4 MB VRAM 512 by 384 8, 16, 32 8, 16, 32 768 by 576 8, 16, 32 8, 16, 32 640 by 480 800 by 600 832 by 624 1024 by 768 1152 by 870 8, 16, 32 8, 16, 32 8, 16, 32 8, 16 8, 16 8, 16, 32 8, 16, 32 8, 16, 32 8, 16, 32 8, 16
Specifications Video Support - 9 Table 1: PM8500 and WS 8550 Video Support PIXEL DEPTHS MONITOR DISPLAY SIZE 1280 by 960 1280 by 1024 2 MB VRAM 4 MB VRAM 8 8, 16 8 8, 16
Specifications Disk Storage - 10 Disk Storage Hard Drive PM 8500 1, 1.2, or 2 GB fast internal SCSI hard drive WS 8550 2 GB fast internal SCSI hard drive Supports drive array with dual hard drive bracket Floppy Drive One Apple SuperDrive 1.
Specifications Electrical - 11 Electrical Line Voltage 100—240 VAC, RMS single phase, automatically configured Frequency 50—60 Hz, single phase Maximum Power DC Power: 225 W, not including monitor AC Power: 340 W maximum continuous; 520 W peak input
Specifications Physical - 12 Physical Dimensions Weight Height: 14 in. (35.6 cm) Width: 7.7 in. (19.6 cm) Depth: 15.75 in. (40.0 cm) 25 lb. (11.
Specifications Environmental - 13 Environmental Operating Temperature Storage Temperature 50 to 104° F (10 to 40° C) —40 to 116° F (—40 to 47° C) Relative Humidity 5% to 95% noncondensing Maximum Altitude 10,000 ft.
K Service Source Troubleshooting Power Macintosh 8200 and 8500 Series/WS 8550 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.
Troubleshooting Cleaning Procedure for Card Connectors - 2 Cleaning Procedure for Card Connectors It is possible for residue to build up on the gold edge connector pins on some PCI cards, which could cause a variety of symptoms. If you are having problems with a PCI card, inspect the connector pins with a magnifying glass. If you find residue, use a pencil eraser to gently clean the pins.
Troubleshooting Symptom Charts/Power Supply - 3 Symptom Charts Power Supply System doesn’t power up 1 2 3 4 5 6 Reseat processor card and ROM SIMM (if present). Reset Cuda chip. (Refer to The Cuda Chip in Basics for instructions.) Reset logic board. (Refer to Resetting the Logic Board in Basics for instructions.) Replace power supply. Replace processor card. Replace logic board.
Troubleshooting Symptom Charts/Error Chords - 4 Error Chords One-part error chord sounds during startup sequence 1 2 3 4 5 Disconnect SCSI data cable from hard drive and reboot system. If startup sequence is normal, initialize hard drive. Test unit again with SCSI data cable connected. If error chord still sounds, replace hard drive. Disconnect floppy drive cable from floppy drive and reboot system. If startup sequence is normal, replace floppy drive. Reseat processor card. Replace processor card.
Troubleshooting Symptom Charts/Error Chords (Continued) - 5 Error Chords Eight-part error chord (death chimes) sounds during startup sequence 1 2 (Continued) Replace DRAM DIMMs one at a time to test DRAM. Replace any faulty DIMMs. Replace logic board.
Troubleshooting Symptom Charts/System - 6 System Does not power on, screen is black, fan is not running and LED is not lit 1 2 3 4 5 6 7 8 9 Check power cables. Plug monitor directly into wall socket, and verify that monitor has power. Reseat ROM SIMM (if present) and processor card. The logic board must have a processor card installed to operate. Reset Cuda chip. (Refer to The Cuda Chip in Basics for instructions.) Reset logic board. (Refer to Resetting the Logic Board in Basics for instructions.
Troubleshooting Symptom Charts/System (Continued) - 7 System Clicking, chirping, or thumping 1 2 3 4 5 6 7 (Continued) Remove all PCI cards and test the unit. If problem does not occur with cards removed, begin replacing them one at a time to determine which card is causing the problem. Replace problem card with known-good card. Remove hard drive. If problem no longer occurs, replace hard drive with a known-good drive. Replace power supply. Replace processor card. Replace logic board.
Troubleshooting Symptom Charts/System (Continued) - 8 System System shuts down intermittently 1 2 3 4 5 6 7 8 9 (Continued) Make sure air vents are clear. Thermal protection circuitry may shut down system. After 30 to 40 minutes, system should be OK. Make sure power cord is firmly plugged in. Replace power cord. Check battery. Reset Cuda chip. (Refer to The Cuda Chip in Basics for instructions.) Reset logic board. (Refer to Resetting the Logic Board in Basics for instructions.) Replace power supply.
Troubleshooting Symptom Charts/System (Continued) - 9 System System intermittently crashes or hangs 1 2 3 4 5 6 7 8 (Continued) Verify system software is version 7.5.2 or later (PM8500/ 120) or 7.5.3 or later (PM 8500/132, PM 8500/150, and WS 8550). Verify DIMMs are noncomposite. Verify software is known-good. Do a clean install of the system software. Verify software is Power Macintosh 8500 compatible (contact developer).
Troubleshooting Symptom Charts/System (Continued) - 10 System (Continued) During startup, following message is displayed, "This startup disk will not work on this Macintosh model...." 1 2 PM 8200 can’t be powered off unless external 1.2 GB hard drive is off or LED remains lit when system is powered off and attached 1.
Troubleshooting Symptom Charts/System (Continued) - 11 1) Unplug system and remove top cover. 2) Disconnect hard drive SCSI cable and power cable. 3) Remove hard drive from chassis. 4) Turn drive over and examine part number label on 50-pin SCSI connector (removing drive carrier if necessary). If label reads “1280S p/n TM12S012” and “REV 02-B”, replace drive. Note: Only Revision “02” drives cause this problem; therefore, make sure bar code label includes the words “REV 02B” before replacing hard drive.
Troubleshooting Symptom Charts/Video - 12 Video Screen is black, boot tone is present, drive operates, fan is running, and LED is lit 1 2 3 4 5 6 7 8 9 Adjust brightness on monitor. Clear parameter RAM. Hold down
Troubleshooting Symptom Charts/Video (Continued) - 13 Video Screen is black, no boot tone and drive does not operate, but fan is running and LED is lit 1 2 3 4 5 6 (Continued) Reset Cuda chip. (Refer to The Cuda Chip in Basics for instructions.) Reset logic board. (Refer to Resetting the Logic Board in Basics for instructions.) Remove all DRAM DIMMs and try replacing them one at a time to test. Replace any bad DIMMs. Replace processor card. Replace logic board. Retain customer's DIMMs.
Troubleshooting Symptom Charts/Video (Continued) - 14 Video Boot tone is present and screen lights up, but nothing is displayed on screen 1 2 3 4 5 6 (Continued) Reset Cuda chip. (Refer to The Cuda Chip in Basics for instructions.) Reset logic board. (Refer to Resetting the Logic Board in Basics for instructions.) Replace monitor cable. Test with known-good monitor. Replace monitor if necessary. Refer to appropriate monitor manual to troubleshoot defective monitor. Replace processor card.
Troubleshooting Symptom Charts/Video (Continued) - 15 Video Video display distorted on Power Macintosh 8500 with DAV card installed (Continued) Symptom occurs when an add-in card attached to the DAV connector requires a mode configuration under which the add-in card controls most of the signal lines (Mode 2). Verify that the logic board installed supports DAV cards; if not, replace the logic board.
Troubleshooting Symptom Charts/Video (Continued) - 16 Jumper Wire PCB Part Number 820-0564-XX NOTE: The dotted line indicates that the jumper wire is running underneath the logic board.
Troubleshooting Symptom Charts/Floppy Drive - 17 Floppy Drive Internal floppy drive does not operate 1 2 3 4 5 Replace floppy disk with known-good disk. Replace floppy drive cable. Replace floppy drive. Replace processor card. Replace logic board. Retain customer's DIMMs. During system startup, disk ejects; display shows icon with blinking "X" 1 2 3 4 5 Replace disk with known-good system disk. Replace floppy drive cable. Replace floppy drive. Replace processor card. Replace logic board.
Troubleshooting Symptom Charts/Floppy Drive (Continued) - 18 Floppy Drive Does not eject disk 1 2 3 4 5 Attempts to eject disk, but doesn’t 1 2 (Continued) Switch off computer. Hold mouse button down while you switch computer on. Replace floppy drive cable. Replace floppy drive. Replace processor card. Replace logic board. Retain customer's DIMMs. Reseat floppy drive bezel and drive so bezel slot aligns correctly with drive. Replace floppy drive.
Troubleshooting Symptom Charts/Floppy Drive (Continued) - 19 Floppy Drive (Continued) Internal floppy drive runs continuously 1 2 3 4 5 Replace disk with known-good floppy disk. Replace floppy drive cable. Replace floppy drive. Replace processor card. Replace logic board. Retain customer's DIMMs. MS-DOS drive does not recognize a disk formatted on a 1.4 MB drive To read and write files with either MS-DOS or 1.4 MB drive, format all disks with MS-DOS drive first.
Troubleshooting Symptom Charts/Hard Drive - 20 Hard Drive Single internal hard drive does not operate; drive doesn’t spin 1 2 No internal SCSI drives operate 1 2 3 3 4 5 6 Replace hard drive power cable. Replace hard drive. If problem resolved, reinstall SCSI device driver and system software. Replace power supply. Verify there are no duplicate SCSI device addresses. Disconnect external SCSI devices and check for proper termination. Only last device in SCSI chain should be terminated.
Troubleshooting Symptom Charts/Hard Drive (Continued) - 21 Hard Drive Drive does not appear on the desktop 1 2 3 4 5 6 (Continued) Verify there are no duplicate SCSI device addresses. Update the SCSI device driver using Drive Setup. Run Disk First Aid to verify the condition of the drive's directory structure. Replace the SCSI hard drive cable. If drive is not initialized, use Drive Setup to initialize. Replace with known-good hard drive.
Troubleshooting Symptom Charts/Hard Drive (Continued) - 22 Hard Drive Works with internal or external SCSI devices but not with both 1 2 3 4 (Continued) Verify there are no duplicate SCSI device addresses. Replace terminator on external SCSI device. Verify that SCSI device at end of internal SCSI data cable is only device terminated. Refer to appropriate manual to troubleshoot defective external device.
Troubleshooting Symptom Charts/Peripherals - 23 Peripherals Cursor does not move 1 2 3 4 5 6 7 Check mouse connection. Inspect inside of mouse for buildup of dirt or other contaminants. Clean mouse if necessary. If mouse was connected to keyboard, connect mouse to computer ADB port instead. If mouse works, replace keyboard. Replace ADB cable. If mouse does not work in any ADB port on computer, replace mouse. Replace processor card. Replace logic board. Retain customer's DIMMs.
Troubleshooting Symptom Charts/Peripherals (Continued) - 24 Peripherals (Continued) Cursor moves, but clicking mouse button has no effect 1 2 3 Boot from floppy or bootable CD. Replace mouse. Replace logic board. Retain customer's DIMMs. Double-click doesn’t open application, disk, or server 1 2 Remove duplicate system folders. Clear parameter RAM. Hold down
Troubleshooting Symptom Charts/Peripherals (Continued) - 25 Peripherals (Continued) No response to any key on keyboard 1 2 3 4 Check keyboard connection to ADB port. Replace keyboard cable. Replace keyboard. Replace logic board. Retain customer's DIMMs. Known-good serial printer does not work 1 2 3 4 5 6 Verify you have correct version of system software. Verify that Chooser is set correctly. Reinstall correct printer drivers. Do clean install of system software. Replace printer interface cable.
Troubleshooting Symptom Charts/Peripherals (Continued) - 26 Peripherals Known-good network printer does not print 1 2 3 4 5 (Continued) Check network connections. Verify you have correct version of system software. Verify that Chooser is set correctly. Does printer show up in Chooser? If so, do clean install of system software and/or network and printer software. Replace logic board. Retain customer's DIMMs.
Troubleshooting Symptom Charts/CD-ROM Drive - 27 CD-ROM Drive CD-ROM drive does not work 1 2 Try using known-good compact disc. Replace CD-ROM drive mechanism. Macintosh does not display CD-ROM icon once CD is inserted in drive 1 2 3 Verify that CD-ROM software is installed. Replace CD-ROM drive mechanism. Replace SCSI data cable. Computer with 600i CD-ROM drive makes stuttering sounds when playing CD+ or CD-R formatted discs or CD-ROM disc won’t mount Replace CD-ROM drive.
Troubleshooting Symptom Charts/Miscellaneous - 28 Miscellaneous No sound from speaker 1 2 3 4 Verify that volume setting in Control Panel is 1 or above. Clear parameter RAM. Hold down
Troubleshooting Errors occur when initializing or erasing floppy disks and/or 1.4 MB disks show only 1 MB available after initialization Symptom Charts/Miscellaneous - 29 This problem only occurs on systems using a 180 MHz or faster processor card. Upgrade to system software version 7.5.4 to resolve this problem (the Apple recommended solution) or, alternatively, install the Power Mac Format Patch, which can be found on the original system disks that shipped with the computer.
K Service Source Take Apart Power Macintosh 8500 Series/WS 8550 Series
Take Apart Top Housing Top Housing - 1 Top Housing No preliminary steps are required before you begin this procedure. Note: The top housing covers the top, front, and left and right sides of the computer. IMPORTANT: Never operate the computer with the top housing removed. Failure to comply may result in irreparable damage to internal components.
Take Apart Top Housing - 2 1 2 1 4 3 Loosen the four captive cover screws on the rear panel and slide the top housing forward about one inch.
Take Apart Top Housing - 3 Top Housing 2 Lift the top housing straight up to remove it from the computer.
Take Apart CD-ROM Drive - 4 CD-ROM Drive CD-ROM Drive Before you begin, remove the top housing. Note: The CD-ROM drive is located in the top drive bay.
Take Apart CD-ROM Drive - 5 CD-Rom Audio Cable SCSI Data Cable CD-Rom Drive Power Cable 1 Disconnect the SCSI data cable, audio cable, and power cable from the back of the CD-ROM drive.
Take Apart CD-ROM Drive CD-ROM Drive - 6 Retaining Clip 2 Pull up the retaining clip beneath the front of the CD-ROM drive and slide the drive forward to remove it from the computer. Note: Be sure to remove the CD-ROM drive from its carrier before returning the drive to Apple.
Take Apart Floppy Drive - 7 Floppy Drive Floppy Drive Before you begin, remove the following: • Top Housing • CD-ROM Drive Note: The floppy drive is located in the second drive bay from the top.
Take Apart Floppy Drive - 8 Plastic Guides Floppy Drive Floppy Drive Cable 1 Disconnect the floppy drive cable from the logic board and remove the cable from the plastic guides.
Take Apart Floppy Drive Floppy Drive - 9 Retaining Clip 2 3 Press down the retaining clip beneath the front of the floppy drive and slide the floppy drive forward about two inches. Disconnect the floppy drive cable from the back of the floppy drive and remove the floppy drive from the computer. Replacement Note: Be sure to remove the floppy drive from its carrier before returning the drive to Apple.
Take Apart DAT Tape Drive-WS 8550 - 10 DAT Tape DriveWS 8550 Before you begin, remove the top housing. Note: The DAT tape drive is located in third drive bay from the top. The tape drive is optional on the WS 8550.
Take Apart DAT Tape Drive-WS 8550 - 11 1 Disconnect the SCSI cable and power cable from the back of the tape drive.
Take Apart DAT Tape Drive-WS 8550 - 12 2 Remove the four screws securing the carrier to the tape drive. Remove the carrier before returning the tape drive to Apple.
Take Apart Hard Drive-Power Macintosh 8500 - 13 Hard Drive-Power Macintosh 8500 Before you begin, remove the top housing. Hard Drive Note: The hard drive is located in the bottom drive bay.
Take Apart Hard Drive-Power Macintosh 8500 - 14 1 SCSI Cable Power Cable Disconnect the SCSI data cable and hard drive power cable from the hard drive.
Take Apart Hard Drive-Power Macintosh 8500 - 15 2 Press down the retaining clip beneath the front of the hard drive and slide the hard drive forward to remove it from the computer. Note: For information on removing the hard drive from its carrier and returning drives, cables, and carriers to Apple, refer to Additional Procedures in the Hard Drives manual.
Take Apart Hard Drive-WS 8550 - 16 Hard Drive-WS 8550 Before you begin, remove the top housing. Note: The Workgroup Server 8550 can hold up to two hard drives, which install in a metal drive bracket as opposed to the plastic drive carrier used in the Power Macintosh 8500.
Take Apart Hard Drive-WS 8550 - 17 1 Press down the retaining clip beneath the front of the hard drive bracket and gently slide the hard drive bracket forward as far as it will reach.
Take Apart Hard Drive-WS 8550 - 18 2 Disconnect the SCSI cable from the back of the hard drive.
Take Apart Hard Drive-WS 8550 - 19 3 4 Disconnect the power cable at the connector location shown in the photograph at left. Remove the hard drive from the bracket before returning the drive to Apple. Note: You can install up to two hard drives in the hard drive bracket. There are four screws that attach the bracket to the sides of each hard drive.
Take Apart Hard Drive-WS 8550 - 20 5 Fast SCSI - Top Connector (Vertical) Slow SCSI - Bottom Connector (Horizontal) CD Floppy DAT (Optional) Terminator No Drive Installed Drive If you are installing a single drive in the WS 8550, connect the SCSI cables as shown in the illustration on the left.
Take Apart Hard Drive-WS 8550 - 21 6 Fast SCSI - Top Connector (Vertical) Slow SCSI - Bottom Connector (Horizontal) CD Floppy DAT (Optional) Array - Drive 2 Array - Drive 1 If you are installing two drives in the WS 8550, connect the SCSI cables as shown in the illustration on the left.
Take Apart Power Supply - 22 Power Supply Before you begin, remove the top housing. Power Supply Note: As you face the computer, the power supply is located in the back of the chassis, directly beneath the speaker.
Take Apart Power Supply - 23 1 Disconnect the two cables that run from the power supply to the logic board. Note: The 10-pin power supply cable supplies 3.3 V power for the processor card. The 22-pin cable supplies 5 V and +/- 12 V power for the logic board.
Take Apart Power Supply - 24 2 3 Power Supply Chassis Support Brace Turn the computer sideways so you are facing the power supply. (The power supply should be to your left and the drive bays to your right.) Locate the chassis support brace, which is between the power supply and the drive bays.
Take Apart Chassis Support Brace Power Supply - 25 4 Push in the latch located on the right side of the chassis support brace and pull out the brace to remove it.
Take Apart Power Supply - 26 5 Power Supply Latch Push in the plastic latch that secures the power supply to the chassis. The latch is located to the right of the power supply.
Take Apart Power Supply - 27 6 7 Slide the power supply forward and pull it out of the computer. Remove the 22-pin cable from the power supply. Replacement Note: There are two metal tabs on the back of the power supply on its bottom edge. You must feed these tabs through two openings in the chassis before you slide the power supply back into place.
Take Apart Speaker Speaker - 28 Speaker Before you begin, remove the top housing. Note: As you face the computer, the speaker is on top of the chassis at the back end of the computer.
Take Apart Speaker - 29 1 Speaker Speaker Cable Disconnect the speaker cable from the logic board.
Take Apart Speaker - 30 2 Speaker Press the latch holding the speaker housing to the chassis and lift the front of the speaker housing.
Take Apart Speaker - 31 3 Pull the speaker housing from the clips at the rear of the chassis.
Take Apart Rear Panel - 32 Rear Panel Before you begin, remove the following: • Top Housing • Speaker Note: To locate the rear panel, turn the computer so the back faces you. The rear panel is the back part of the housing.
Take Apart Rear Panel - 33 Plastic Tab Plastic Tab 1 Two plastic tabs at the top of the rear panel secure the rear panel to the chassis. Lift the two tabs to release the rear panel.
Take Apart Rear Panel - 34 2 Rear Panel Pull down the rear panel and lift it out of the chassis.
Take Apart Rear Panel - 35 Replacement Note: First, insert the bottom tabs on the rear panel into the slots in the bottom chassis. Next, swing the rear panel up until it locks into place.
Take Apart AV Module-Power Macintosh 8500 - 36 AV ModulePower Macintosh 8500 Before you begin, remove the following: • Top Housing • Speaker Note: As you face the back of the computer, the AV module is in the center of the rear panel, directly above the PCI expansion slots.
Take Apart AV Module Connector AV Module-Power Macintosh 8500 - 37 Note: Lay the computer on its side (logic board side down) to provide access to the logic board connectors. Be sure to keep the computer on a padded, static-free work surface. 1 Disconnect the AV module cable from the logic board. Note: The AV module connector is directly above the PCI slots on the logic board.
Take Apart AV Module-Power Macintosh 8500 - 38 AV Module Note: Turn the computer right side up again with the rear facing you. 2 Remove the two Torx screws that secure the AV module to the rear panel. Note: The AV module’s plastic cover does not come off. It is part of the rear panel.
Take Apart AV Module-Power Macintosh 8500 - 39 Plastic Tab Plastic Tab 3 Two plastic tabs at the top of the rear panel secure the rear panel to the chassis. Lift the two tabs to release the rear panel.
Take Apart AV Module-Power Macintosh 8500 - 40 4 Rear Panel Pull down the rear panel and lift it out of the chassis.
Take Apart AV Module-Power Macintosh 8500 - 41 5 AV Module LIft the AV module out of the computer.
Take Apart PCI Retainer - 42 PCI Retainer Before you begin, remove the top housing. Note: As you face the front of the computer, the PCI retainer is on the left side. It attaches to the inside of the bottom chassis.
Take Apart PCI Retainer - 43 1 Push In Push In PCI Retainer Push in on the top of the PCI retainer from both the left and right sides while pulling down on the retainer.
Take Apart PCI Retainer - 44 Plastic Stays 2 To release the bottom tabs on the retainer from the plastic stays on the bottom chassis, slide the retainer to the right.
Take Apart Processor Card - 45 Processor Card Before you begin, remove the following: • Top Housing • PCI Retainer Processor Card Note: As you face the computer, the processor card is plugged into the logic board on the left side, directly beneath the power supply. Note: For best access, lay the computer on its side with the power supply facing up.
Take Apart Processor Card Processor Card - 46 Warning: The heat sink may be hot to the touch. 1 Grab the corners of the processor card (and top of heat sink if cool to the touch) and pull the card straight up to remove it. Replacement Note: Position the card in the plastic guides and press down on the card. Do not force the card or you may damage it. Look at the connectors to make sure the card is firmly seated. Press down on the card again if necessary.
Take Apart PCI Cards - 47 PCI Cards Before you begin, remove the following: • Top Housing • PCI Retainer Note: PCI cards plug into the logic board on the left side, directly below the processor card. PCI Card Note: For better access, lay the computer on its side with the power supply facing up.
Take Apart PCI Cards - 48 Plastic Latches PCI Card 1 Push apart the plastic latches that secure the PCI card to the chassis and pull up the card to remove it.
Take Apart Power Actuator - 49 Power Actuator Before you begin, remove the top housing. Note: As you face the computer, the power actuator is near the bottom right corner of the chassis.
Take Apart Power Actuator - 50 Note: Turn the computer on its side so you can access the internal connectors on the logic board. 1 LED Cable Disconnect the LED cable, which is located near the bottom right corner of the logic board.
Take Apart Power Actuator - 51 Tab Note: Turn the computer right side up so you can access the power actuator. 2 Tab Locate the power actuator at the bottom of the logic board. Press in the two plastic tabs and push out the actuator to remove it.
Take Apart Logic Board - 52 Logic Board Before you begin, remove the following: • Top Housing • Power Actuator • PCI Retainer • Processor Card • PCI Cards Logic Board Note: As you face the front of the computer, the logic board is on the right side and is perpendicular to the bottom chassis.
Take Apart AV Module Connector Logic Board - 53 Note: The AV Module is part of the Power Macintosh 8500, but not the WS 8550. 1 2 Turn the unit on its side so you have access to the internal logic board connectors. Disconnect the AV module cable, which is located near the bottom left corner of the logic board.
Take Apart Logic Board - 54 3 4 Power Floppy CD-Rom Speaker Power Supply Drive Supply Audio Cable Cable Cable Cable Cable SCSI Cable Turn the unit right side up so you have access to the top of the computer.
Take Apart Logic Board - 55 5 Screw Remove the screw securing the logic board to the chassis.
Take Apart Latch Logic Board - 56 Latch 6 Slide the logic board to the left until the slots on the top of the logic board line up with the latches on the chassis.
Take Apart Logic Board - 57 7 Lift the latch at the top of the logic board to release the logic board.
Take Apart Logic Board - 58 8 Logic Board If you are removing the logic board from a Power Macintosh 8500, pivot the front of the logic board out of the chassis. Note: Remove the DRAM, VRAM, and cache DIMMs before returning the board to Apple. Do NOT remove the ROM SIMM. Refer to the Parts Database to identify the ROM SIMM and DRAM, VRAM, and cache DIMMs.
Take Apart Logic Board - 59 9 If you are removing the logic board from a WS 8550, pivot the front of the logic board out of the chassis until you can access the Fast SCSI connector. Disconnect the Fast SCSI cable from the logic board and remove the board from the chassis.
K Service Source Upgrades Power Macintosh 8500 Series/WS 8550 Series
Upgrades PC Compatibility Cards - 1 PC Compatibility Cards There are three Apple PC Compatibility cards that can be installed in the Power Macintosh 8500 Series computers: • 7” 100 MHz PC Compatibility Card • 12” 100 MHz PC Compatibility Card • 12” 166 MHz-P PC Compatibility Card For more information about these cards and installation instructions, refer to the PC Compatibility Card manual on this Service Source CD.
Upgrades Power Macintosh 8500 Upgrade - 2 Power Macintosh 8500 Upgrade The Power Macintosh 8500 Upgrade Kit can be used to upgrade a Quadra 800, Quadra 840, or a Power Macintosh 8100. The kit includes everything except: • The peripherals (such as the hard drive, floppy drive, and CD-ROM drive), which must be transferred from the original unit you are upgrading • A processor card, which must be purchased separately.
Upgrades Power Macintosh 8500 Upgrade - 3 Once you have installed all the drives in the upgraded unit and replaced the top housing, copy the serial number from the original unit to the blank serial label on the upgraded unit.
Upgrades WorkGroup Server 8550/132 Upgrade - 4 WorkGroup Server 8550/132 Upgrade The WorkGroup Server 8550/132 Upgrade Kit can be used to upgrade a WorkGroup Server 80, 8150/80, or 8150/ 110.
Upgrades WorkGroup Server 8550/132 Upgrade - 5 These parts need to be removed from the original unit and installed in the upgraded unit. Refer to the Take Apart chapter for the product from which you are upgrading for instructions on how to remove these parts. Refer to the Take Apart chapter in the Power Macintosh 8500/WS 8550 manual to see where the peripherals should be installed in the upgraded unit.
K Service Source Exploded View Power Macintosh 8500 Series/ WS 8550 Series
Exploded View 1 Top Housing 922-1277 Front Panel 661-1535 AV Module 922-1740 Slotted Thumb Screw 922-0395 Speaker Housing 922-0394 SCSI Cable* 922-2254 922-1524 Speaker 922-0353 CD-ROM Bezel 922-0811 Floppy Drive Bezel 922-0523 Blank Bezel 922-0620 Logic Board 661-1784 661-1153 Processor Card* 661-1157 661-0925 CD-ROM Audio Cable 922-0724 Rear Panel 922-1536 CD-ROM Drive* 661-0913 PCI Cover 922-1628 Power Supply Cable 922-0838 PCI Retainer 922-1739 Power Supply 661-0923 Logic Board Guard 922-15
Exploded View 2 Top Housing 922-1277 Front Panel 922-1535 CD-ROM Bezel 922-0811 Floppy Drive Bezel 922-0523 Tape Drive Bezel 922-0969 Logic Board Guard 922-1539 Logic Board 661-1154 Slotted Thumb Screw 922-0395 Processor Card SCSI Speaker 661-1157 Cable Housing Speaker 922-0394 922-0353 922-2254 661-1223 CD-ROM Audio Cable 922-0724 Rear Panel 922-1536 CD-ROM Drive* 661-0913 CD-ROM Shield 922-0812 CD-ROM Carrier 922-0850 Floppy Drive Cable 922-0872 Manual Insert Floppy Drive 661-0121 Floppy Drive Sh
