SOYO 5EAS5 P55C - Manual (Page 3)

Table of Contents
Chapter 1: Introduction… … … .… … … … ..… .… … … ..1
Key Features………………………………..…………………1
Unpacking the Mainboard…………………………………2
Electrostatic Discharge Precautions……………………….2
Mainboard Layout W/ Default Settings……..…………………3
Remarks on the Cyrix and IBM P200 CPUs……..………….5
Voltage Setting List……………………………………………5
Chapter 2: Hardware Setup.… … … … … … … … … . .6
Jumpers…..…………………………………..………………6
JP5: CMOS Clear Jumper……………..…………………..6
J2 5 :
E MI Gr ou n d Pin … … …… … …… … … …… … . 6
JP16: PCI Bus Asynchronous/Synchronous Jumper…..7
CPU Type Configuration……………………………………8
Step 1: Frequency Setting…………………………………..8
P54C/P55C-75/90/100 CPU Settings (1.5 x clock)…….8
P54C/P55C-100/120/133 CPU Settings (2.0 x clock)….9
P54C/P55C-150/166 CPU Settings (2.5 x clock)……..10
P54C/P55C-180/200 CPU Settings (3.0 x clock)……..10
3. 5x clock CPU Settings (233 MHz CPUs)….……..11
4.0x clock CPU Settings (266 MHz CPUs)…………11
Step 2: CPU Single/Dual Voltage Setting……..………12
Single Voltage CPU Setting……….………………12
Dual Voltage CPU Setting………………………..13
Memory Configuration……………………………………..13
Memory Configuration Table……………………………..14
RAM Bank Installation Notice…………..…………….14
Cache Configuration……………………………………….14
Cache Size and RAM Locations………………………….14
Multi I/O Port Addresses…………………………………..15
Connectors…………..………………………………………….15
COM1, COM2-COM1/COM2 Connectors…………………15
FDC Connector…………………………………………..…15
J19-Hardware Reset Control………………………………..15
J24-HDD LED Connectors…………………………………15
CN5-IR Con nector……………………………………..16
CN2-Keyboard Con nector……………………………..16