Altos 1100 Series User’s Guide1-6

Jumpers are prefixed “JP”. Connectors are

prefixed “CN”. The blackened pin of a

jumper or connector represents pin 1.

1.4.2 Jumper Settings

Table 1-1 lists the system board jumpers with their corresponding settings and

functions.

Table 1-1 System Board Jumper Settings

Jumper Setting Function
JP4 1-2/4-5
2-3/5-6*
Reserved
Reserved
JP5 1-2*
2-3
Reserved
Reserved
BIOS Logo Select
JP6 1-2*
2-3
Acer
None
Password Security
JP7 1-2
2-3*
Check password
Bypass password
Sound Output
JP8 1-2*
2-3
Buzzer
Speaker

* Default