User Guide

2-12 AcerAltos 21000 System Guide
2.1.4 Internal Components
The housing is symmetrically divided into the left and right panels.
The system’s internal components are accessible through these
panels.
Left Panel
The main part of the left panel houses the system board, memory
board, and expansion boards. On the rear end of the left panel are
the keyboard, mouse, video, parallel, and serial ports, and the slot
openings for installation of ISA and PCI expansion boards.
The front panel display occupies the upper front section of the left
panel. The section below the front panel display accommodates one
3.5-inch and three 5.25-inch drives. These devices on the front
section are externally accessible.
Here is a diagram of the system components on the left panel of the
system housing.
Expansion
Slots
System Board and
Memory Board
5.25-inch
Drive Bays
Ventilation
LCD Display
Screen
3.5-inch
Drive Bay
Hot-swappable
Redundant Fans
Hot-swappable
Redundant Fans
Thermal Air Guide