User manual

Interrupts
If one of the interrupts IRQ1 (keyboard), IRQ3 (COM2), IRQ4 (COM1) or
IRQ8 (RTC) occurs, the CPU changes from sleep mode to normal mode.
All interrupts are processed in sleep mode; none are lost.
Shadowing
The shadowing function allows you to improve the overall performance of
the system. If you enable this function, both the BIOS EPROM and the
VGA EPROM are copied to the DRAM.
As a result, the accesses of the CPU are accelerated. When the shado-
wing function is disabled, an additional 384 KB of memory is available to
the system.
Cache
As of the 80486DX2 processor, the cache can no longer be
disabled.
Shadowing Yes
(8) Prev (6) Incr
(2) Next (4) Decr
486 Cache ON
(8) Prev (6) Incr
(2) Next (4) Decr
BIOS setup
GB - 88