Chapter 2. System-Board Features
Physical Layout
The system board might look slightly different from the one shown.
Note: A diagram of the system board, including switch and jumper settings, is attached to the underside
of the computer cover.
System Board, Type 6893
.1/
Battery
.2/
Microprocessor-speed switches
.3/
Microprocessor
.4/
DIMM 0
.5/
DIMM 1
.6/
DIMM 2
.7/
Clear CMOS Request jumper
.8/
AGP connector
Note: An illustration of the system board and additional information are provided on a label found inside
the computer.
System Board Switches
Switches are provided on the system board to allow for custom configuration. The switches, which are
contained in an eight-position switch block on the system board, are rocker switches. The side of the
rocker that is pushed down is the active side.
Switches 1 through 4 determine the speed of the microprocessor (CPU) and local processor bus. Switch
settings for the Intel microprocessors supported by IntelliStation E Pro are shown in the following table.
Note that the two speeds shown for each microprocessor are the microprocessor core speed followed by
the local processor bus speed (for example, 350/100 MHz).
IntelliStation E Pro computers are designed to support 100MHz FSB microprocessors.
Note: Only the switch values shown in the preceding table are supported. Using unsupported switch
settings will cause unpredictable results.
Figure 5. Microprocessor Speed (Switches 1-4)
Microprocessor
Switch 1
Switch 2
Switch 3
Switch 4
350/100 MHz
Off
Off
On
On
400/100 MHz
On
On
Off
On
450/100 MHz
Off
On
Off
On
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Technical Information Manual
