Phoenix MicroATX Express – Installation Guide
Step 1
Setting the Jumpers
Your Phoenix MicroATX Express is equipped with a large number of peripherals. As such, there are a large number
of configuration jumpers on the board. Taken step by step, setting these jumpers is easy. We suggest you review
each section and follow the instructions.
Special note about operating frequency:
The Phoenix MicroATX Express has the ability to
run at a variety of speeds without the need to
change any crystal, oscillator or jumper.
Jumper Types
Jumpers are small copper pins attached to the system board. Covering two pins with a shunt closes the connection
between them. The Phoenix MicroATX Express examines these jumpers to determine specific configuration
information. There are two different categories of jumpers on the Phoenix MicroATX Express.
A. Two pin jumpers are used for binary selections such as enable, disable. Instructions for this type of jumper are
open, for no shunt over the pins or closed, when the shunt covers the pins.
B. Three or four pin jumpers are used for multiple selections. Instructions for these jumpers will indicate which two
pins to cover. For example: for JP
x
2-3 the shunt will be covering pins 2 and 3 leaving pins 1 and 4 exposed.
How to identify pin number 1 on
Figure 1-1
: Looking to the solder side (The board side with fewer components) of
the PCB (Printed Circuit Board), pin number 1 will have a squared pad
J
. Other pins will have a circular pad
Q
.
They are numbered sequentially.
Double row jumpers are numbered alternately, i.e. pin number 2 is in the other row, but in the same column of pin
number 1. Pin number 3 is in the same row of pin 1, but in the next column and so forth.
2
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Summary of Contents for MicroATX Express
Page 1: ... Phoenix MicroATX Express Motherboard Installation Guide ...
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Page 61: ...Appendix B Flash BIOS User s Notes 53 StockC heck com Downloaded from StockCheck com ...
Page 67: ...Appendix C Industrial Devices 59 StockC heck com Downloaded from StockCheck com ...
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