Specifications

Appendix I: SVGA

Utility software

The Chips and Technologies SVGA software for Windows 95 provides several functions

for setting screen resolution and color depths. These are selected under the Display tab as

normally accessed through Windows 95.

Microsoft Windows 3.1

Before upgrading from a previous release

Before installing the new drivers you should use Windows Setup to select the VGA or

SUPERVGA video driver so that when you install the new drivers, there is no chance of

overwriting the driver that Windows is using to control your screen. Next go to the system

directory, and find a file that is named OEM?.INF where the question mark is a number.

There may be more than one of these. These files are the different OEMSETUP.INF files

used to configure Windows for different devices. Using a text editor, such as Notepad or

Edit, look at them until you find the one that is for the previous version of the Cirrus Logic

video drivers and delete it. This is not completely necessary, but if you don’t delete old

files the drop down box for Setup soon becomes very cluttered with different versions of

the same files. Also, in many cases the old files were overwritten by newer ones, so they

no longer exist anyway.

Installing Windows 3.1 display drivers

To install the Windows 3.1 drivers from the DOS prompt:

1. Ensure that Windows 3.1 is already installed on your computer.

2. From your Windows directory, at the DOS prompt, type SETUP to run the Windows

SETUP.EXE program. Follow the instructions on the screen.

When you come to the screen which lists the hardware and software components such

as display adapter (For example, VGA, CGA, etc.), keyboard type, mouse type, etc.,

go to the Display selection by using cursor keys to move the highlighted bar and press

[Enter].

3. From the next menu listing of display options, scroll through the list until the Chips

and Technologies drivers are found (marked with an *):

* CHIPS 655DGX-VL/ISA 1024x768x16

* CHIPS 655DGX-VL/ISA 640x480x16

* CHIPS 655DGX-VL/ISA 640x480x256

* CHIPS 655DGX-VL/ISA 800x600x16

* CHIPS 655DGX-VL/ISA 800x600x256

4. Highlight the desired choice by moving the cursor to the correct display driver, and

then press [Enter].

5. Continue with the remainder of the setup procedure.