Installing & Working With System Components 4-3
4.02 CONFIGURING CACHE
The microprocessors have Internal Cache Memory available for faster execution of
applications.
Cache copies the most recently accessed data and places it in its fast Internal Cache
Memory. The CPU can then access this data at a very high speed. Since most program
executions are sequential and repetitive, the likelihood is great that the CPU will find data
already stored in Cache.
When the CPU retrieves data from Cache, a
Cache hit
occurs. On the other hand, when
the CPU must access data from System Memory, a
Cache miss
occurs .
Internal Cache Memory is enabled or disabled in the Advanced Setup screen of the
AMIBIOS Setup program. To run the AMIBIOS Setup program, boot-up your computer
and hit the DELETE key before or when the message - "Hit <DEL> if you want to run
SETUP" - appears near the top of the screen. Set the Internal Cache option in the
Advanced Setup screen to Enabled or Disabled.
Internal Cache Memory is configured as Write Through or Write Back with VIPer808
jumpers. The jumper settings for various CPUs appear on pages 3-7 to 3-10.
Summary of Contents for VIPer808
Page 21: ...Installing Memory 2 3 DIAGRAM 2 1 Assembly Top...
Page 22: ...Installing Memory 2 5 DIAGRAM 2 2 Assembly Bottom...
Page 26: ...Setting Jumpers 3 3 DIAGRAM 3 1 VIPer808 Jumper Locations with Default Settings...
Page 28: ...Setting Jumpers 3 6 TABLE 3 1a Jumper Settings W1 W4 W13 W14...
Page 29: ...Setting Jumpers 3 7 TABLE 3 1b AMD DX2 DX4 CPU Jumper Settings W1 W15 W15C...
Page 30: ...Setting Jumpers 3 8 TABLE 3 1c AMD 5x86 CPU Jumper Settings W1 W15 W15C...
Page 31: ...Setting Jumpers 3 9 TABLE 3 1d Intel CPU Jumper Settings W1 W15 W15C...
Page 32: ...Setting Jumpers 3 10 TABLE 3 1e SGS CPU Jumper Settings W1 W15 W15C...
Page 33: ...Setting Jumpers 3 11 TABLE 3 1f Jumper Settings W18 W20 W23...
Page 92: ...Memory I O Maps B 1 APPENDIX B MEMORY I O MAPS B 01 MEMORY MAPS DIAGRAM B 1 Memory Map Diagram...
Page 96: ...Mechanical Layout Block Diagram C 3 DIAGRAM C 1 Mechanical Specifications...
