American Megatrends Enterprise-II User Manual page 22

Step 1 Set Switch and Jumper Options,
Continued
Selecting the Processor Speed
Processor Speed
80486DX 25 MHz
33 MHz
50 MHz
80486SX 25 MHz
80487SX 25 MHz
* Leave J2 open if the processor is a
B6 or earlier version of an i486.
Selecting the Processor Type
Processor Type
80486SX Short pins 2-3
80487SX Short pins 1-2 and Pins 3-
4
80486DX, P24 Short pins 1-2 and Pins 3-
4
14
J2 * J27 EBC
25/33 MHz
Select
Short pins 1- Short pins 1-
2 2
Short pins 1- Open
2
Short pins 1- Short pins 1-
2 2
Short pins 1- Short pins 1-
2 2
Short pins 1- Short pins 1-
2 2
J36 NMI Pin Select
Open
Short pins 2-3
Short pins 1-2
Chapter 2 - Installation
J35 CLKEBC
Select
Normal or /2
Short pins 2-3
Short pins 2-3
Short pins 1-2
Short pins 2-3
Short pins 2-3
J37 FERR# Pin Select