Apple Power Macintosh 7100/80AV - Manual (Page 114)

Upgrades Power Macintosh Upgrade - 25
17 Copy the computer’s
serial number from the
old top housing to the
new top housing.
Note:
A blank serial
number label is provided
on the back of the
upgraded bottom
housing.
18 Lower the top housing
down so that it clears the
drives and slide the top
housing back into place.
Replacement Note:
Do
not attempt to tilt the top
housing when you
install it.
Top Housing