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Processor Upgrade Card for "Upgrade-challenged" Power Macintosh

®

 Computers

Sonnet Technologies, Inc., 8 Autry, Irvine, California 92618-2708 USA
Tel: 1-949-587-3500 • Fax: 1-949-457-6350

© 1999 Sonnet Technologies, Inc. Revised 2004.  All rights reserved. Sonnet, the Sonnet logotype, Simply Fast, the Simply Fast logotype, and Crescendo are trademarks of Sonnet Technologies, Inc. Macintosh, Mac, and the 
Mac logo are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. The PowerPC name and the PowerPC logotype are trademarks of International Business Machines Corporation, used under license 
therefrom. Other product names are trademarks of their respective owners. All specifications are subject to change without notice. Printed in the U.S.A. C/L2G3-0304

G3 Performance

Sonnet

 brings the G3 revolution to previously “upgrade-

challenged” Power Macintosh and Performa

®

 computers that were 

built with no processor upgrade slot. Through innovative 
engineering, Sonnet has designed the Crescendo/L2 G3 to be a 
“plug-and-play” processor upgrade card that installs into the L2 
backside cache slot of the computer. The Crescendo/L2 G3 
incorporates the revolutionary PowerPC

 G3 processor and its 

own ultra, high-speed Level 2 backside cache.

Mac OS 9 Compatibility

The Crescendo/L2 G3 seamlessly integrates with your system 
software supporting System 7.5.3 up to the latest innovations 
and enhanced performance of Mac

®

 OS 9.1 (as of January 2002).

Simple Installation

The Crescendo/L2 G3 installs in minutes with step-by-step, 
illustrated instructions. Simply install the Crescendo software, 
open your computer, then insert the upgrade into the Level 2 
cache slot.

Performance Comparison

Technical Specifications

Compatible Macintosh Models

 

Part #BG3-500-1M*

                       

•  Power Macintosh 4400, 5400, 5500, 

6400, 6500, 7220

• Performa 54XX, 6360, 64XX

•  Twentieth Anniversary

Macintosh (TAM)

• PowerBase Desktop, Minitower

• StarMax 3000, 5000

• UMAX C500, C600, C600X**

Compatibility

Key Features:

      G3 speed at a low price

      Several performance choices

       100% compatible with existing hardware

and software

      Three-year limited warranty

         Manual available in English; Quick Start Guide

available in French and Japanese

Performance results based on MacBench 4.0 processor scores

  Part #                                   G3 Speed                      Size/L2 Cache Speed

  BG3-500-1M†                      400-500 MHz                      1MB/200-250 MHz

  * The Apple

®

 GeoPort Express Modem is not compatible with a G3 processor.

** The Cache Doubler must be removed from the C600X.

† Due to bus speed limitations, this upgrade card runs at top speed only in Power 

Macintosh 5500, 6500 and Twentieth Anniversary Macintosh (TAM).

6400/200

258

PowerBase 240

308

184

6400/180

300

600

900

1200

1500

0

Crescendo/L

2 G3 400/1M (most models)/200 

1400

Crescendo/L

2 G3 500/1M/250 

1600

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