External speaker (CN3)
The CPU card has its own buzzer. You can also connect to the external speaker on your computer chassis. Pin assignments for CN3 are shown below:
External speaker (CN3)
Pin | Function |
1 | Vcc (For external speaker use) |
|
|
2 | Speaker- (For external speaker use) |
3 | Internal Buzzer * |
|
|
4 | Speaker- * |
* default
External speaker (CN3)
Internal Buzzer | External Speaker |
1
2
3
4
1
2
3
4
Reset switch (CN4)
You can connect an external switch to easily reset your computer. This switch restarts your computer as if you had turned off the power, then turned it back on.
Chapter 2 Installation 29
