IBM Aptiva 2170 Hardware Maintenance Service Manual page 185

.
2171 and 2172 System Board Jumper Se t t i n g
Jumper/Settings
JP6
1-3 & 2-4
3-5 & 4-6*
SW 1 (switch 1, 2, 3, 4)
Off, Off, On, Off
On, On, On, On
On, Off, On, On
On, On, Off, On
On, Off, Off, On
On, On, On, Off
On, Off, On, Off
On, On, Off, Off
On, Off, Off, Off
Off, On, On, On
Off, Off, On, On
Off, On, Off, On
Off, Off, Off, On
Off, On, On, Off
SW1 (switch 5)
On
Off*
SW1 (switch 6)
*. Default Setting
Function
Line-out signal type
Audio line-out
Amplified audio line-out
Bus Clock Ratio
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
8
Password function
Bypass
*Check
Reserved
Parts/Test Point Locations 151