Driver Installation Guide - Egmont Instruments
Driver Installation Guide - Egmont Instruments
Driver Installation Guide - Egmont Instruments
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Advanced CMOS Settings<br />
Some computers use the Upper Memory Blocks as Shadow<br />
Memory to speed up the system by copying data from slow<br />
ROM devices to fast RAM. This can cause a memory conflict<br />
if the default CompuScope address is occupied by shadow<br />
memory.<br />
For example, Gateway Pentium computers have an option<br />
called DISABLE SHADOW MEMORY SIZE in the advanced<br />
CMOS settings. The default selection for this option is<br />
DISABLED, meaning that all upper memory blocks are to be<br />
used for shadow memory. Change this setting to 16K and<br />
then set the next option, DISABLE SHADOW MEMORY BASE<br />
ADDRESS, to D000. When you save these settings to CMOS<br />
and reboot, the system will not use the area D000 to D400.<br />
While it is impossible to list all the CMOS options used, it can<br />
help to disable everything that is not essential to running a<br />
“bare-bones” system, including cache memories, Fast A20<br />
Gate Enable, Shadow RAMs, Video Shadow RAMs, etc. If you<br />
are then able to run the card(s) without any problems, then<br />
reactivate each feature one by one and test for normal<br />
operation of the CompuScope. You will eventually find the<br />
setting(s) causing the problem.<br />
92<br />
<strong>Driver</strong> <strong>Installation</strong> <strong>Guide</strong> for CompuScope Cards
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