Cache Configuration - DFI G486-EVA User Manual

On: Light Green
486DX,486SX,
Intel486
Processor, AMD 486DXL

Cache Configuration

The G486-EVA system board can be configured to two
different cache sizes: 128KB and 256KB. 128KB of
cache memory is the default size. Either four or eight
32K x 8 (20ns) SRAM chips are used for cache depend-
ing on the size of cache desired. Regardless of the
amount of cache memory installed, one 32K x 8 (20ns)
SRAM is needed for tag RAM to store the cacheable
addresses. The locations of the SRAM sockets on the
system board is shown on the next page.
Cache Size
128KB*
256KB
*
Default setting
TM
OverDrive
U17/U18/U19/U20
32K x 8 (20ns)
32K x 8 (20ns)
Off: Deep Green
SL Enhanced Intel486
Cyrix Cx486S/Cx486S2
(Default)
U24/U25/U26/U27
None
32K x 8 (20ns)
Installation Overview
G486-EVA
TM
DX CPU,
U21
32K x 8 (20ns)
32K x 8 (20ns)
2-11