Preparation 
of 
your System Unit 
Due to 
the 
length of 
the 
signal cable 
on 
your IBM 
Monochrome Display, 
the 
IBM Monochrome Display 
and 
Printer 
Adapter 
should 
be 
installed 
in 
slot 7 when 
used with the IBM Personal Computer 
AT 
Floor 
Standing Option. 
•   Installation instructions for 
the 
Monochrome 
Display and Printer 
Adapter 
are located 
in 
this 
section. 
Warning: 
To 
prevent a permanent loss of 
data 
on 
the fixed disk drive, we recommend 
that 
all files 
be 
backed up 
and 
that 
the head 
be 
parked before 
continuing with this procedure. 
To 
back up the data 
stored 
on 
your fixed disk drive, see the 
IBM 
Disk 
Operating System 
manual for a description 
of 
the 
BACKUP 
command. 
To 
park 
the head, load your 
diagnostic diskette 
and 
select option 3, "Prepare 
System for Moving". 
3-126 
Floor Stand