54xx/64xx L2 Cache Reset: Read Me

Language/OS Required	Release Date	Version	Read Me	Software
North American English North American English Mac OS 7.6.1	1997-04-23	1.0		8 K

Important Information about the 54xx/64xx L2 Cache Reset

This document provides information about the 54xx/64xx L2 Cache Reset extension version 1.0.

Many Apple Performa and Power Macintosh computers now include an L2 cache which improves your overall system performance. Apple is aware of a problem which disables the L2 cache feature on some Performa and Power Macintosh computers after installing Mac OS 7.6.1 or the 54xx/64xx Update extension version 1.1. This problem also occurs on several models of Mac OS-compatible computers based on Apple's logic boards with an L2 cache.

The 54xx/64xx L2 Cache Reset extension corrects this problem and improves performance on affected computers.

The following Apple products may be affected by this problem:

• Power Macintosh 5400
• Macintosh Performa 5400
• Macintosh Performa 5410
• Macintosh Performa 5420
• Macintosh Performa 5430
• Macintosh Performa 5440
• Macintosh Performa 6360
• Power Macintosh 6400
• Macintosh Performa 6400
• Macintosh Performa 6410
• Macintosh Performa 6420

To install the 54xx/64xx L2 Cache Reset extension follow these steps:

1. Locate the System Folder on the computer's hard disk. Don't open the System Folder.

2. Drag the file named "54xx/64xx L2 Cache Reset" to the System Folder.

3. A message appears asking if you want to put the "54xx/64xx L2 Cache Reset" into the Extensions folder. Click OK. If a second message appears stating that "54xx/64xx L2 Cache Reset" already exists and asks you if you would like to replace it, click OK.

4. Open the Special menu and choose Restart.