POWER THE USERS' MEMORY UPGRADE How to install additional memory in your Macintosh computer MacWAREHOUSE

For Your Safety and Protection

Working inside your Mac can cause problems if you are not careful. For example, you could damage either the delicate microchips in your computer, or your new memory chips, with a discharge of static electricity. You could suffer personal injury by touching certain parts of the picture tube, which retain high voltage charges even after you shut off the power. Working inside the Mac requires that you exercise care and caution. As well, opening the case of any Macintosh will void your Apple warranty.

MacWAREHOUSE assumes no liability or responsibility for any injury or damage to persons or property, whether direct or consequential, that may result from installing your new SIMMs. We provide the following instructions solely as a convenience for those who wish to install the SIMMs themselves.

DON'T FORGET! DISCONNECT YOUR MAC!!

Introduction

Thank you for buying your Macintosh memory expansion kit from MacWAREHOUSE. These high-quality memory modules should provide you with many years of trouble-free performance.

Memory expansion on the Mac is fairly easy because Apple uses cards and slots to simplify the process. Each card is called a Single In-line Memory Module, or SIMMs. Each card contains the actual memory chips that store your data.

i.5

Computer Shop Installation

If you feel uncomfortable with the idea of working inside your Mac, or just plain don't want to bother with the process, you can have a computer shop install your SIMMs for you. Their service technicians have the tools and the expertise to do the job. In most cases, the process involves only an hour or less of shop time, which in most areas should cost under $75.

Do It Yourself Installation

Table Of Contents

The six rules for SIMMs installation ..... 4
Preparing your work area ..... 5
The tools you will need ..... 5
Important rules for grounding ..... 6
Shutting down the system ..... 7
Opening the Mac ..... 7
About your computer's memory ..... 13
Removing old SIMMs ..... 17
Installing new SIMMs ..... 17
Special notes on resistors & jumpers ..... 18
Installing the Mac Classic Expansion Board ..... 20
Installing memory in your Quadra 700 ..... 22
Installing memory in your Quadra 900/950 ..... 24
Installing memory in your PowerBook 100 ..... 25
Installing memory in your PowerBook 140/145/160/170/180 ..... 26
Closing the Mac ..... 28
Checking your work ..... 30

The Six Rules For SIMMs Installation

1. All SIMMs in a Set must be of the same speed. Some chips respond to the main processing chip's questions faster than others. This speed is measured in nanoseconds (billionths of a second). And the fastest chips respond in the shortest time. Thus, a chip rated at 80ns is faster than a 120ns chip. Putting faster SIMMs than required will work, but it will not make your Mac run faster!

2. All SIMMs in a Set must be of the same size. For example, never mix a one megabyte SIMMs with a 256 K SIMMs in the same Set.

3. Both slots in a Set must have a SIMMs installed. Fill all the slots or leave them all empty.

4. Put the largest set of SIMMs in Set One. For example, if you are upgrading a Mac Plus, which has four 256K SIMMs (one in each slot), put a one megabyte SIMMs in each of the slots of Set One. You can leave the old 256K SIMMs in Set Two, giving you a total of two and a half megabytes. Or, you can remove the second pair of 256K SIMMs and replace them with one megabyte SIMMs, for a total of four megabytes. If you are installing four 4MB SIMMs in a Mac II, you must have a PMMU chip installed. These SIMMs go in BANK-B. If you install eight 4MB SIMMs you must also have the FDHD upgrade from your local dealer.

5. Fill Bank A first with the largest SIMMs. This applies only to the SE/30 and the Mac II series.

$ ^{**} $ Of course, every rule has an exception. On SEs with a jumper configuration, you must install the largest SIMMs in Set Two.

6. When installing 2, 4, 8 or 16MB SIMMs in Ilici the larger set should go in Bank-B. Doing otherwise will slow down your internal video.

Preparing your work area

Be sure that you have enough space to keep all the parts and tools handy. In particular, you will need a flat surface (cushioned with towels) to place the front half of the case face down, and another large flat area to work on the motherboard. Keep pets and small children away while you are working.

The tools you will need...

for the Plus, SE, Classic, SE/30, Classic II, Performa 200

• a T-15 torx wrench with an 8" shaft

• a butterfly tool or case spreader

• newspaper

-a grounding strap

• a small pair of wire cutters (Plus & Some SE's only)

for the Mac II Series and Quadras.

LC Series, Performa 400 & 600

• a Phillips screwdriver (only needed on some models)

for the PowerBook series

-a grounding strap

• a #8 & #10 torx screwdriver

-a grounding strap

• a Phillips screwdriver (PowerBook 100 only)