Below is a quick and easy way to setup your PX486 P3 system.

Check the default jumper setttings of your system as follows:

A) CPU & Frequency selection

(i) CPU selection

(ii) Frequency selection

If no clock-chip on board, OSC1's frequency is main frequency. If clock-chip on board, set clock-chip jumpers as follows :

B) Cache size selection

Note: If no SRAM installed (0K cache), the "External Cache Memory" Option in ADVANCED CMOS SETUP should be set Disabled.

(C) Memory configuration

The PX486 P3 supports 256KB, 1MB, and 4MB memory devices relatively. The total main memory size can be accommodated up to 32MB. A total of 9 different memory configurations are supported as shown in the following table :

Note: At least 1MB main memory must be installed on board. The memory banks must be filled beginning from BANK0, then BANK1. In addition, each memory bank must use the same type of SIMM RAM.

(D) VESA Local Bus

(i) VLB Master/Slave settings

(ii) VLB Wait state settings

 "X" - Don't care.

[Editor's note: I think the above table is a little misleading, so here's the condensed version]