"Section 
5, 
External Option Installation" 
This section has instructions for installing and 
connecting cables 
to 
options 
that 
go outside your 
system unit. 
"Section 
6, 
System Check List" 
This section provides a list of things that should be 
done before you turn the system's power on. 
"Section 
7, 
Power-On 
Self 
Test" 
This section guides you in performing the Power-On 
Self Test and using the Setup program. 
"Section 8, Additional Options" 
This section has 
been 
provided 
to 
contain the 
~ 
installation instructions for any of the options you may 
have purchased for your 
IBM Personal Computer AT. 
vi