SPF card jumper settings for serial port

Jumper

number

 

Function

5

6

9

 

A

A

A

Built-in port is primary *

A

B

B

Built-in port is secondary

B

 

 

Disable built-in port **

*default setting

** the setting of jumpers 6 and 9 do not matter

SPF card jumper settings for parallel port

Jumper

number

 

Function

3

4

10

 

A

A

A

Built-in port is primary *

A

B

B

Built-in port is secondary

B

A

A

Enable compatibility with IBM monochrome

 

 

 

display/printer adapter

B

B

 

Disable built-in port **

*default setting

**the setting of jumper 10 does not matter

To access the SPF card jumpers, you need to remove the card from the computer. If you have a hard disk drive controller card in slot 7 or 8, you must remove it before you can remove the SPF card because of the cables. Follow the instructions below, in the order listed here, as necessary for your system:

Remove the hard disk drive controller card (if you have one)Remove the SPF cardChange the jumper settingsReplace the SPF cardReplace the disk drive controller card (if necessary).

Installing Options 6-11