Apple Macintosh Powermac Performa WS6150 Service Manual
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Service Source
Power Macintosh 6100/
WS 6150
Power Macintosh 6100/60, 6100/60AV, 6100/66,
6100/66AV, 6100/DOS Compatible, and
Workgroup Server 6150
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Basics
Power Macintosh 6100/WS 6150
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.
T r oubleshooting T ips
When troubleshooting Power Macintosh systems, keep in
mind the following:
1 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.
2 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 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.
4 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 Power Macintosh System Overview - 6
5 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 8100/80 systems
must
have a video card installed in the PDS slot. The
Power Macintosh 7100/66 system uses the Power
Macintosh 2 MB Video Card and the Power Macintosh
8100/80 system uses the Power Macintosh 4 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.
Figure: HDI-45 Connector on the Logic Board
Basics HDI-45 Pinouts - 8
Pin Description
1 Analog audio ground
2 Audio input shield
3 Left channel audio input
4 Right channel audio input
5 Left channel audio output
6 Right channel audio output
7 Reserved
8 Monitor ID sense line 1
9 Monitor ID sense line 2
(continued)
Table: HDI-45 Pinouts
Basics HDI-45 Pinouts - 9
Pin Description
10 Green ground (shield)
11 Green video output (75Ω)
12 Video input power ground
13 Power for camera +5 V
14 Reserved
15 Reserved
16 Reserved
17 Reserved
18 Monitor ID sense line 3
19 S-video input shield
20 S-video input luminance (Y)
(continued)
Basics HDI-45 Pinouts - 10
Pin Description
21 S-video input chroma (C)
22 Reserved
23 Reserved
24 Reserved
25 Reserved
26 Red ground (shield)
27 Red video output (75Ω)
28 I2C data signal
29 I2C clock signal
30 Reserved
31 Monitor ID
(continued)
Basics HDI-45 Pinouts - 11
Pin Description
32 Monitor ID
33 Vertical sync signal
34 Composite sync signal
35 ADB power +5 V
36 ADB ground
37 ADB data
38 Keyboard switch
39 Reserved
40 Reserved
41 Monitor ID
42 Horizontal sync signal
(continued)
Basics HDI-45 Pinouts - 12
Pin Description
43 Video sync ground
44 Blue ground (shield)
45 Blue video output (75Ω)
Basics Rear Panel Connectors - 13
Rear Panel Connectors
The figure on the following page shows the rear panel of a
Power Macintosh 6100/60AV computer. The Workgroup
Server and other non-AV versions of this machine would not
include the S-Video In, DB-15 Video, and S-Video Out ports,
which are actually part of the AV Card.
Basics Rear Panel Connectors - 14
DB-15
Ethernet
SCSI
S-Video In
Video
HDI-45
Video
ADB
Modem
Printer
S-Video Out
Reset/
Interrupt
Sound In
Sound Out
Power Macintosh 6100/60 AV Rear Panel
Basics Logic Board Connectors - 15
Logic Board Connectors
The figure on the following page shows a Power Macintosh
6100 Series logic board.
Basics Logic Board Connectors - 16
Serial Ports
Sound Out
Sound In
601
PDS
ADB
AV Display
Connector
SCSI
Ethernet
DRAM
SIMMs
ROM
Cache
601
Chip
Soldered
DRAM
Basics Apple RAID Software - 17
Apple RAID Software
Apple RAID (Redundant Array of Independent Disks)
software protects data from loss during a disk failure and
enhances the speed of data storage and retrieval. It is
available for all Power Macintosh Workgroup servers.
Data protection is achieved through disk mirroring, a data
storage scheme in which identical data is stored on two
different disks. Apple RAID can also be configured for disk
striping, a data storage scheme in which successive units of
data are transferred to several disks at one time.
If you plan to install the Apple RAID software on an existing
Power Macintosh Workgroup Server, or if you are
reinitializing an existing Apple RAID drive, keep in the mind
the following:
Basics Apple RAID Software - 18
• If you wish to use your server's startup disk for Apple
RAID, do not install the Apple RAID program on your
startup disk until you have initialized and set up new
volumes on that disk. Before you initialize the startup
disk, back up all valuable data.
• You must reinitialize all disks on which you will use
Apple RAID volumes. Initializing with Apple RAID
removes all data, so be sure to back up your disks first.
• Apple HD SC Setup does not recognize Apple RAID
volumes. If you want to remove or resize volumes on
Apple RAID disks, use the Apple RAID program.
• The Apple RAID CD contains the facilities to reinstall
your system software. However, if you have made any
customizations to your system files, such as adding
extension files, control panels, or preference files, then
Basics Apple RAID Software - 19
back up your system files now. Back them up in such a
way that you can restore your system files separately
from the nonsystem files on your disk. You will later
restore your system files using the backup copy rather
than the System Installer on the RAID CD, so that you
preserve your system customizations.
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Specifications
Power Macintosh 6100/WS 6150
Specifications Processor - 1
Processor
CPU
6100/60 & 6150:
6100/66 & 6150/66:
60 MHz PowerPC 601 RISC microprocessor
Built-in MMU and FPU
32K of on-chip cache memory
Requires system software version 7.1.2 or later
66 MHz PowerPC 601 RISC microprocessor
Built-in MMU and FPU
32K of on-chip cache memory
Requires system software version 7.5 or later
Specifications Memory - 2
Memory
RAM
6100/60 & 6150:
6150/66:
8 MB RAM soldered on board; expandable to 72 MB via 2 SIMM
sockets on logic board (requires a pair of same size, 80 ns or
faster, 72-pin, noncomposite SIMMs); 16 MB configuration
has two 4 MB SIMMs installed
16 MB RAM standard (8 MB soldered on board and two 4 MB
SIMMs); expandable to 72 MB via 2 SIMM sockets on logic
board (requires a pair of same size, 80 ns or faster, 72-pin,
noncomposite SIMMs)
Note
: SIMMs must be installed in pairs of the same size and
speed. Install noncomposite SIMMS only.
Specifications Memory - 3
ROM
VRAM
6100/60, 6100/66, 6150 & 6150/66:
6100/60AV & 6100/ 66AV:
Cache
6100/60 & 6150:
6100/66:
Clock/Calendar
4 MB installed on SIMM socket
None
2 MB on Power Macintosh AV Card
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
Specifications Disk Storage - 4
Disk Storage
Floppy Drive
Hard Drive
6100/60:
6100/66:
6150/66:
1.4 MB Apple SuperDrive Manual Insert
160 MB or 250 MB hard drive
350 MB or 500 MB hard drive
700 MB hard drive
Specifications Disk Storage - 5
CD-ROM Drive
6100/60:
6100/60AV:
6100/66 & 6100/ 66AV:
6150/66:
Optional internal CD-ROM drive
Internal AppleCD 300 Plus CD-ROM drive
Internal AppleCD 300 Plus CD-ROM drive standard on some
models and optional on others
Internal AppleCD 600 CD-ROM drive standard
Specifications I/O Interfaces - 6
I/O Interfaces
SCSI
Serial
Apple Desktop Bus
One SCSI port; DB-25 connector
Supports a maximum of six external SCSI devices (five when CD-
ROM is installed)
Two RS-232/RS-422 LocalTalk/GeoPort serial ports; mini DIN-
9 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
Specifications I/O Interfaces - 7
Expansion Slot
6100/60, 6100/66, 6150 & 6150/66:
6100/60AV & 6100/ 66AV:
Ethernet
Sound
Internal expansion slot supports either a processor-direct slot
card or 7-in. NuBus card (with appropriate adapter)
Units ship with Power Macintosh AV card installed in the internal
expansion slot
One built-in AUUI-15 Ethernet port
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
Specifications I/O Interfaces - 8
Sound
(continued)
Video
6100/60, 6100/66, 6150 & 6150/66:
Bandwidth: 20 Hz–20 kHz (± 2 dB) at 44.100 kHz sample rate
THD+N (total harmonic distortion plus noise): less than 0.05%,
measured 20Hz–20kHz with a 1-Vrms sine wave input
One HDI-45 DRAM-based video port on logic board supports
direct connection to Apple AudioVision monitors; and, with
HDI-45 to DB-15 adapter (which is included), these
computers support 12", 13", 14", 15" portrait, 16", and 17"
monitors
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