Power Computing Minitower 132, Minitower 150, Minitower 180, Minitower 166, PowerCenter 132 User Manual

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PowerCenter

PowerCenterª

Certification Module

PowerCenter Minitower 132/150/166/180

Table of Contents

PowerCenterª NT Specifications

Specifications for the PowerCenter NT 132/150/166/180 ......................................................................Page 2

MLB Diagram ................................................................................................................................................Page 5

CUDA Reset

For Your Safety .............................................................................................................................................Page 3

Purpose of CUDA Reset...............................................................................................................................Page 4

Table of Contents

Bezel Removal/Installation

Removing and installing the chassis cover................................................................................................Page 6

Removing and installing the front bezel....................................................................................................Page 7

Board Removal/Installation Procedures

Removing and installing RAM.....................................................................................................................Page 9

Removing and installing VRAM.................................................................................................................Page 11

Removing and installing CPU card...........................................................................................................Page 13

Removing and installing L2 cache............................................................................................................Page 15

Removing and installing PCI expansion cards........................................................................................Page 16

Removing and installing PCI Riser card...................................................................................................Page 19

Drive Removal/Installation Procedures

Removing and installing drives in the 3.5-inch drive bay......................................................................Page 21

Removing and installing drives in the 5.25-inch drive bay....................................................................Page 22

Removing and installing the floppy disk drive .......................................................................................Page 24

System Level Removal/Installation Procedures

Removing and installing the MLB.............................................................................................................Page 26

Removing and installing the power supply ............................................................................................Page 29

CONFIDENTIAL

PowerCenter NT Specifications

CPU

PowerPC 604 at 132, 150, 166 or 180MHz

PowerCenter LP Specifications

Main Logic Board

CPU Upgrade

MacOS

Memory

Cache

SCSI

Serial Ports

Network

Bus Expansion

Floppy Drive

512 KB Level 2

Available via daughtercard replacement

4 DIMM slotsÑ168-pin, 64 bit, 70 ns (512 Mb max); Memory interleaving not

Three PCI expansion slots

One 3.5-inch, 1.4MB floppy disk drive. Supports MacOS, Windows, DOS, OS/2

Catalyst (Comparable to a Macintosh 7200)

7.5.2, 7.5.3, 7.5.5, 7.6, 7.6.1

supported

SCSI-2; 5 MB/sec data transfer rate

High speed GeoPort-compatible 9-pin modem and printer ports

Built-in Ethernet AAUI port; Built-in Ethernet 10 Base-T port; LocalTalk serial connection via modem or printer port

and ProDOS disk formats.

Video

Audio

ROM

Case style

Drive Bays

Dimensions

Power Supply

Internal video with both Mac and SVGA connections

1MB VRAM built-in and upgradeable to 4MB max Optional high-quality accelerated video cards

16 bit, 44.1 KHz Stereo in/out connections (microphone port requires line-level input, such as AppleÕs Plaintalk Microphone); Built-in speaker

Removeable Apple ROM

Mini-tower

Three front accessible, full-height 5.25-inch drive bay; one internal 3.5-inch full height drive bay

7"(W) X 15"(H) X 16"(D); 22 lb (10.5 kg)

200W, 100V-240V (Domestic/International manual switching)

CONFIDENTIAL

For Your Safety

To ensure your personal safety as well as prevent unnecessary damage to the computer, please follow all safety precautions when performing any service on Power Computing computers.

NNNNoooottttee

: Always make sure that the computer is powered down before attempting any service. To make

sure that the computer is completely powered down, check the light behind the power button on the front bezel and make sure that it is off.

Preventing ESD (Electrostatic Discharge) - There are two means by which a technician can maintain a ground and eliminate ESD: ¥ wear an ESD wrist strap that is grounded to the computer ¥ power down the computer, but leave the CPU power cord plugged into the wall socket; touch the

metal case of the power supply to ensure complete static discharge before service.

Do not wear loose clothing or jewelry that may become caught in the components inside of the computer case.

Make sure that the work environment is free from excessive moisture. Any moisture on the components of the computer may cause damage.

If you need further assistance, please call:

1-800-708-6227

CONFIDENTIAL

CUDA Reset

The CUDA Reset button is a small red button located on the Main Logic Board. Depressing this button resets the CUDA Microcontroller Chip. This chip is responsible for the following functions:

¥ Turns system power on and off ¥ Manages system resets from various commands ¥ Maintains parameter RAM ¥ Manages the Apple Desktop Bus (ADB) ¥ Manages the real-time clock ¥ Lets an external signal from either Apple GeoPort serial port control system power

It is rarely necessary to reset CUDA, but many problems that appear to be hardware related can be fixed by doing so. Resetting CUDA will not harm the machine in any way. Some of the most common reasons to reset CUDA are:

¥ After adding RAM, the machine will not boot, RAM does not show up in the memory control panel, etc. ¥ Machine will not power up ¥ Machine powers up, but does not chime or boot ¥ A serial port remains inaccessible even after booting without extensions, resetting parameter RAM, etc. ¥ Machine will power down for no apparent reason ¥ After adding any hardware to the inside of the machine

CUDA Reset

Resetting CUDA

1. Shut down the computer and disconnect all external devices, but leave the power cable plugged in to ground the computer.

2. Remove the cover

3. Touch the metal chassis of the machine. This will dissipate static electricity into ground.

4. Locate the CUDA Reset button (

5. Press the CUDA Reset button for a few seconds.

6. Reboot, and verify resolution of the problem you wanted to solve.

NNNNooootttteeee::

Resetting the CUDA will cause some system settings to default to factory settings.

(

refer to

Chassis Cover Removal/Installation

refer to

MLB Diagram

on page 5).

on page 6).

CONFIDENTIAL

MLB DIAGRAM

MLB Diagram

CONFIDENTIAL

Chassis Cover Removal/Installation

Removing the Chassis Cover

1. Shut down the computer and turn off all external devices. If you do not have a grounding strap, leave the computer plugged into the wall socket. Leaving the computer plugged in ensures a positive ground. Disconnect everything but the power cord.

2. Remove the four thumb screws from the rear of the computer.

3. Push the cover back and away from the machine chassis. Lift the cover up and remove from the chassis.

Side Panel

Figure 1: Removing the chassis cover

thumb screws

Installing the Chassis Cover

1. With the computer upright, place the cover over the chassis. Push the cover towards the front of the

chassis. The front lip of the cover will engage the chassis frame.

2. Replace the four thumb screws from the rear of the computer.

3. Reconnect the cables to the machine.

CONFIDENTIAL

Front Bezel Removal/Installation

Removing the Front Bezel Cover

Front Bezel

1. Remove the chassis cover

1. Remove the main logic board protector plate on the closed side of the chassis by removing the four securing screws and placing the plate aside.

2. Remove the six screws that secure the bezel to the front of the computer (

protective plate

removed. The screws are located on the inside of the chassis frame:

¥ one is on the top left end of the chassis ¥ one is in the left middle of the chassis ¥one is on the bottom left end of the chassis ¥ one is on the top right end of the chassis ¥ one is in the right middle of the chassis ¥one is on the bottom right end of the chassis

Gently pull the bezel directly forward to disengage. Lay the bezel face down directly in front of the chassis.

3. Disengage the wiring between the chassis and the front bezel.

on page 7).

(

refer to

All of these screws must be removed before the front bezel can be

Chassis Cover Removal/Installation

on page 6).

see

Figure 2: Removing

retaiing screws

Figure 2: Removing protective plate

CONFIDENTIAL

retaiing screws

Figure 3: Removing retaining screws

Installing the Front Bezel

1. Connect the switch and speaker wires to their respective ports on the main logic board.

2. Screw the bezel to the chassis front with the six retaining screws.

3. Replace the MLB protection plate on the closed side of the chassis.

4. Replace the chassis cover (

CONFIDENTIAL

refer to

Chassis Cover Removal/Installation

on page 6).

NNNNooootttteeee::

All DIMMs must be 168-pin, fast-paged mode, 70-nanosecond RAM access time or faster. The

PowerCenter has four DIMM slots near the front on the motherboard. DIMMs may be installed in any slot.

Removing RAM

RAM Removal/Installation

RAM

1. Remove the chassis cover (

2. Place the unit on its side with the MLB on the bottom and the open side facing up.

3. Locate the DIMM(s) you would like to remove (

module by reaching in and pushing down on the small lever at the end of the DIMM slot. (

Figure 4: Removing RAM

Figure 3: DIMM slot location

refer to

on page 9).

Chassis Cover Removal/Installation

on page 6).

see

Figure 3:

The DIMM should pop loose from the slot at the lever end.

DIMM Slots

on page 9).

Loosen the desired DIMM

see

4. Grasp the DIMM module on each end and evenly pull the module up and out of the slot.

Installing RAM

1. Hold the module (with the contacts down) with one hand at each end. Notice that there are two notches in the contact edge of the DIMM module.

2. Lower the DIMM squarely into the slot so that the notches in the DIMM line up with the notches

CONFIDENTIAL

Figure 4: Removing RAM

in the slot. Slide the contacts straight into the slot and make sure the contacts are firmly seated. (

see

Figure 5: Installing RAM

on page 10).

When properly seated, the contacts on the bottom

should not be visible.

Figure 5: Installing RAM

NNNNooootttteeee::

DonÕt force the DIMM module into the slot; if the MLB starts bending significantly, pull the

DIMM out, reposition it, and try again. If the DIMM module is seated correctly, the lever at the end of the DIMM slot should be completely raised.

CPU

3. Reset the CUDA (

refer to

CUDA Reset

4. Replace the chassis cover (

refer to

on page 4).

Chassis Cover Removal/Installation

on page 6).

CONFIDENTIAL

+ 21 hidden pages

Power Computing Minitower 132, Minitower 150, Minitower 180, Minitower 166, PowerCenter 132 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual