Apple Macintosh Powermac Performa WS7350 Service Manual
K
Service Source
Power Macintosh 7300/
7500/7600 & WS 7350
PM 7300/166 (Europe/Japan only), 7300/180 &
180PC, 7300/200, 7500/100, 7600/120, 7600/
132, 7600/200 (Japan only), and WS 7350/180
K
Service Source
Basics
Power Macintosh 7300/7500/
7600 & WS 7350
Basics Overview - 1
Overview
The Power Macintosh 7300, 7500, and 7600 and WS 7350
share the same housing and feature a chassis design that
allows you to access the logic board and its components
(including the plug-in microprocessor card) without
having to remove the power supply or any drives. This
flexible design makes these systems easy to service and
upgrade.
Features of the Power Macintosh 7300 include
• A 166, 180, or 200 MHz PowerPC™ 604e
microprocessor card with built-in FPU and 256K cache
• 16 or 32 MB of DRAM, expandable to 512 MB using
168-pin, 70 ns, 64-bit DIMMs
• 2 MB VRAM, expandable to 4 MB
• 2 GB hard drive
• Three PCI expansion slots
Basics Overview - 2
• Two SCSI DMA buses supporting up to eight SCSI devices
and transfers up to 10 MB/s (internal bus only)
• Built-in AAUI and 10BASE-T Ethernet
• Two GeoPort serial ports
• CD-ROM drive at 12x speed
• CD-quality stereo sound in/out
• Mac™ OS system software 7.5.5
Features of the Power Macintosh 7300/180 PC Compatible
include
A 180 MHz PowerPC™ 604e microprocessor card with
built-in FPU and 256K cache
• 32 MB of DRAM, expandable to 512 MB using 168-pin,
70 ns, 64-bit DIMMs
• 2 MB VRAM, expandable to 4 MB
• 2 GB hard drive
• Three PCI expansion slots
Basics Overview - 3
• Two SCSI DMA buses supporting up to eight SCSI devices
and transfers up to 10 MB/s (internal bus only)
• Built-in AAUI and 10BASE-T Ethernet
• Two GeoPort serial ports
• CD-ROM drive at 12x speed
• CD-quality stereo sound in/out
• Mac™ OS system software 7.6.1
• 166 MHz Pentium processor card with FPU, 256K Level
2 cache, 16 MB of DRAM (expandable to 80 MB), 2 MB
of video DRAM
• Windows 95 system software preinstalled
Features of the Power Macintosh 7500 include
• A 100 MHz PowerPC 601 microprocessor card with
built-in FPU and optional Level 2 cache
• 8 or 16 MB DRAM expansion up to 512 MB using 168pin, 70 ns, 64-bit DIMMs
• 2 MB VRAM, expandable to 4 MB
Basics Overview - 4
• 500 MB or 1 GB hard drive
• Two SCSI DMA buses supporting up to eight SCSI devices
and transfers up to 10 MB/s (internal bus only)
• Three PCI expansion slots
• One Digital Audio Video (DAV) slot
• Video-in support via external ports
• Built-in AAUI and 10BASE-T Ethernet
• Two GeoPort serial ports
• CD-ROM drive at 4x speed
• CD-quality stereo sound in/out
• Mac OS system software 7.5.2
Features of the Power Macintosh 7600 (U.S.) include
• A 120 or 132 MHz PowerPC 604 microprocessor card
with built-in FPU and 256K cache
• 16 MB of DRAM, expandable to 512 MB using 168-pin,
70 ns, 64-bit DIMMs
• 2 MB VRAM, expandable to 4 MB
Basics Overview - 5
• 1.2 GB hard drive
• Two SCSI DMA buses supporting up to eight SCSI devices
and transfers up to 10 MB/s (internal bus only)
• Three PCI expansion slots
• One Digital Audio Video (DAV) slot
• Video-in support via external ports
• Built-in AAUI and 10BASE-T Ethernet
• Two GeoPort serial ports
• CD-ROM drive at 4x or 8x speed
• CD-quality stereo sound in/out
• Mac OS system software 7.5.3
Features of the Power Macintosh 7600/200 (Japan only)
include
• A 200 MHz PowerPC 604e microprocessor card with
built-in FPU and 256K cache
• 32 MB of DRAM, expandable to 512 MB using 168-pin,
70 ns, 64-bit DIMMs
Basics Overview - 6
• 2 MB VRAM, expandable to 4 MB
• 2 GB hard drive
• Two SCSI DMA buses supporting up to eight SCSI devices
and transfers up to 10 MB/s (internal bus only)
• Three PCI expansion slots
• One Digital Audio Video (DAV) slot
• Video-in support via external ports
• Built-in AAUI and 10BASE-T Ethernet
• Two GeoPort serial ports
• CD-ROM drive at 12x speed
• CD-quality stereo sound in/out
• Support for TCP/IP networking software with Apple
Open Transport
• Mac OS system software 7.5.5
Features of the Workgroup Server 7350/180 include
• A 180 MHz PowerPC 604e microprocessor card with
built-in FPU, 64K on-chip cache, and 256K Level 2
Basics Overview - 7
cache
• 48 MB of DRAM, expandable to 512 MB using 168-pin,
70 ns, 64-bit DIMMs
• 2 MB VRAM, expandable to 4 MB
• 4 GB hard drive
• 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
• CD-ROM drive at 12x speed
• CD-quality stereo sound in/out
• Mac™ OS system software 7.6.1
• Apple RAID 1.5
The Power Macintosh 7300, 7500, and 7600 Series and WS
7350 computer is pictured on the following page.
Basics Overview - 8
Figure: PM 7300/7500/7600 & WS 7350 Computer
Basics Configurations - 9
Configurations
The Power Macintosh 7300/166 comes standard with
• 166 MHz PowerPC 604e microprocessor card
• 16 MB DRAM
• 2 GB hard drive
• AppleCD 1800i 12x CD-ROM drive
• 2 MB of VRAM
• 256K Level 2 cache
The Power Macintosh 7300/180 comes standard with
• 180 MHz PowerPC 604e microprocessor card
• 16 MB DRAM
• 2 GB hard drive
• AppleCD 1800i 12x CD-ROM drive
• 2 MB of VRAM
• 256K Level 2 cache
Basics Configurations - 10
The Power Macintosh 7300/180 PC Compatible comes
standard with
• 180 MHz PowerPC 604e microprocessor card
• 32 MB of DRAM
• 2 GB hard drive
• AppleCD 1800i 12x CD-ROM drive
• 2 MB of VRAM
• 256K Level 2 cache
• 166 MHz Pentium processor card with FPU, 256K Level
2 cache, 16 MB of DRAM, 2 MB of video DRAM
The Power Macintosh 7300/200 comes standard with
• 200 MHz PowerPC 604e microprocessor card
• 32 MB DRAM
• 2 GB hard drive
• AppleCD 1800i 12x CD-ROM drive
• 2 MB of VRAM
• 256K Level 2 cache
Basics Configurations - 11
The Power Macintosh 7500/100 comes standard with
• 100 MHz PowerPC 601 microprocessor card
• 8/16 MB DRAM
• 500 MB or 1 GB hard drive
• AppleCD 600i 4x CD-ROM drive
• 2 MB of VRAM
The Power Macintosh 7600/120 comes standard with
• 120 MHz PowerPC 604 microprocessor card
• 16 MB DRAM
• 1.2 GB hard drive
• AppleCD 600i 4x CD-ROM drive
• 2 MB of VRAM
Basics Configurations - 12
The Power Macintosh 7600/132 comes standard with
• 132 MHz PowerPC 604 microprocessor card
• 16 MB DRAM
• 1.2 GB hard drive
• AppleCD 1200i 8x CD-ROM drive
• 2 MB of VRAM
The Power Macintosh 7600/200 comes standard with
• 200 MHz PowerPC 604e microprocessor card
• 32 MB DRAM
• 2 GB hard drive
• AppleCD 1800i 12x CD-ROM drive
• 2 MB of VRAM
• 256K Level 2 cache
Basics Configurations - 13
The Workgroup Server 7350/180 comes standard with
• 180 MHz PowerPC 604e microprocessor card
• 48 MB DRAM
• 4 GB hard drive
• AppleCD 12x CD-ROM drive
• 2 MB of VRAM
• 256K Level 2 cache
In addition, there are three solution bundles for the WS
7350/180:
• Application Server Solution
• AppleShare Server Solution
• Apple Internet Server Solution
Basics PowerPC 601 Microprocessor - 14
PowerPC 601 Microprocessor
The Power Macintosh 7500/100 features the PowerPC 601
RISC microprocessor. The PowerPC 601 microprocessor is
installed via a card that plugs into the Macintosh 7500/100
logic board, allowing for maximum flexibility with future
upgrades.
Features of the microprocessor include
• Full RISC processor architecture
• 32-bit addressing
• 64-bit data bus
• Built-in FPU
• 32K cache for data and instructions
• Internal Memory Management Unit (MMU)
• Advanced branching techniques for improved throughput
Basics PowerPC 604 and 604e Microprocessor - 15
PowerPC 604 and 604e Microprocessor
The Power Macintosh 7300 and 7600 and Workgroup
Server 7350 computers feature the PowerPC 604 and 604e
RISC microprocessor. The microprocessor is installed via a
card that plugs into the logic board, allowing for maximum
flexibility with future upgrades.
Features of the microprocessor include
• Full RISC processing architecture
• Parallel processing units: one load-store unit, two
integer units, one complex integer unit, and one floating
point unit
• Separate built-in caches for data and instructions, 16K
each for the 604 and 32K each for the 604e
• Advanced branching techniques for improved throughput
• Bus multiplier up to 3:1 for the 604 and up to 5:1 for
the 604e
Basics Peripheral Component Interconnect (PCI) - 16
Peripheral Component Interconnect (PCI)
All the computer systems covered in this manual offer a
Peripheral Component Interconnect (PCI) expansion bus.
Because the PCI bus is an industry standard, most existing
PCI 2.0-compliant cards (with the addition of a Mac OSspecific software driver) will work in these computers.
PCI offers significantly higher performance than the NuBus
architecture used in previous Macintosh models. Running at
33 MHz, the PCI bus is up to three times faster than NuBus,
offering overall enhanced system performance, particularly
in the areas of video and networking.
Basics Dual In-Line Memory Modules (DIMMs) - 17
Dual In-Line Memory Modules (DIMMs)
All the computer systems covered in this manual 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. (However, to take advantage of memory
interleaving, the DIMMs should be installed in paired slots.
See “Memory Configurations” in Basics for more
information.)
Important:
In-Line Memory Modules (SIMMs) used in previous
Macintosh models are NOT compatible with these computers.
These computers use +5 V DIMMs only. Single
Basics Dual In-Line Memory Modules (DIMMs) - 18
Important
pin 70 ns or faster) instead of VRAM SIMMs. The VRAM
SIMMs used in earlier Power Macintosh models are not
compatible.
Note:
Macintosh 7600/200, and the Workgroup Server 7350/
180 ship with EDO DIMMs, the computers’ memory
controller treats EDO DIMMs like fast-paged DIMMs. You
can therefore use either EDO or fast-paged DIMMs in these
computers.
: These computers also use VRAM DIMMs (112-
While the Power Macintosh 7300 Series, the Power
Basics Memory Configurations - 19
Memory Configurations
All the computer systems covered in this manual have eight
DRAM DIMM slots on the logic board, each with a 64-bit data
bus. You can increase the computers’ DRAM to a total of 512
MB using 5-volt, 64-bit-wide, 168-pin fast-paged mode,
70 ns DIMMs. (You can also use EDO DIMMs in the PM 7300
Series, 7600/200, and WS 7350/180. See the note on the
previous page for more information.)
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.
DRAM DIMMs can be installed individually; however, to take
advantage of the computer’s interleaving capability, which
provides maximum performance, you must install the
DIMMs in matching pairs and in paired slots.
Basics Memory Configurations - 20
Note:
Memory interleaving allows the computer to read or
write to its memory while other memory reads or writes
are occurring, thus providing for faster performance.
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 following page illustrates where the
DRAM slots are located on the Power Macintosh 7300,
7500, 7600 and WS 7350 logic boards and how they are
numbered.
Basics Memory Configurations - 21
B4 slot
B3 slot
B2 slot
B1 slot
A4 slot
A3 slot
A2 slot
A1 slot
(front of computer)
Figure: DRAM Slots on PM 7300/7500/7600 & WS 7350
Basics Ethernet Support - 22
Ethernet Support
There are two Ethernet ports on the logic board: 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 AV Support - 23
AV Support
The Power Macintosh 7500 and 7600 computers come
standard with an AV module that provides support for:
composite video and S-video input, audio input (left and
right), and audio output (left and right). The Power
Macintosh 7300 and WS 7350 computers do not include an
AV module.
PC Compatibility Cards
Apple computer offers PC Compatibility Card upgrade kits
that bring full DOS functionality to the Power Macintosh
7300, 7500, and 7600 computers. The cards plug into any
available PCI slot on the logic board. Refer to the Upgrades
chapter in this manual for installation instructions.
Basics GeoPort - 24
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.
• Unlike traditional asynchronous data communications
(such as AppleTalk), GeoPort also supports isochronous
data streams (such as real-time voice and video) and
provides the real-time Application Program Interfaces
(APIs) necessary to hide the implementation details
from both the recipient and the sender.
Basics GeoPort - 25
By attaching an Apple GeoPort Telecom Adapter to the Power
Macintosh 7300, 7500, or 7600, you can enjoy all the
features of a 33.6 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 33.6 kbps and faxes at up to 14.4 kbps using the
GeoPort Telecom Adapter software.
Basics The Cuda Chip - 26
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. (See
"Logic Board Diagram" later in this chapter to locate the
Cuda reset button.) If you continue to experience system
problems, refer to “Resetting the Logic Board” later in this
Basics chapter.
Basics Resetting the Logic Board - 27
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.
2 Remove the battery from the logic board. (See Take
Apart for instructions on how to remove the battery.)
3 Disconnect the power supply cable 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.)
4 Wait at least 10 minutes before replacing the battery.
Basics Resetting the Logic Board - 28
5 Make sure the battery is installed in the correct +/-
direction.
6 Reassemble the computer and test the unit.
Note:
This procedure resets the computer’s PRAM. Be sure
to check the computer’s time/date and other system
parameter settings afterwards.
Note:
If this procedure resolves the problem, claim an
adjustment on an SRO. If not, replace the defective
component and DO NOT claim the adjustment procedure.
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