SOYO 5EA5, User'S Manual & Technical Reference

Page: 3 / 40

Table of Contents
Chapter 1: Introduction .................................................. 1
Key Features ............................................................................... 1
Unpacking the Mainboard ........................................................... 2
Electrostatic Discharge Precautions............................................ 2
Mainboard Layout w/ Default Settings ....................................... 3
Chapter 2: Hardware Setup ............................................ 6
Jumpers ....................................................................................... 6
JP5: CMOS Clear Jumper ..................................................... 6
J25: EMI Ground Pin ........................................................... 6
JP16: PCI Bus Asynchronous/Synchronous Jumper ............ 7
CPU Type Configuration ............................................................ 8
Step 1: Frequency Setting..................................................... 8
P54C/P55C Ð 75/90/100 CPU Settings (1.5 x clock) ....... 8
P54C/P55C Ð 100/120/133 CPU Settings (2.0 x clock) ... 9
P54C/P55CÐ 150/166 CPU Settings (2.5 x clock) ......... 10
P54C/P55C Ð 180/200 CPU Settings (3.0 x clock) ........ 10
Step 2: CPU Single/Dual Voltage Setting .......................... 11
Single Voltage CPU Setting ........................................... 11
Dual Voltage CPU Setting.............................................. 12
Memory Configuration ............................................................. 12
Memory Configuration Table.............................................. 13
RAM Bank Installation Notice ............................................ 13
Cache Configuration ................................................................. 13
Cache Size and RAM Locations ......................................... 13
Multi I/O Port Addresses .......................................................... 14
Connectors ................................................................................ 14
COM1, COM2Ð COM1/COM2 Connectors ....................... 14
FDC Connector ................................................................... 14
J19 Ð Hardware Reset Control ............................................. 14
J24 Ð HDD LED Connectors ............................................... 14
IDE1/IDE2 Ð On-board Primary/Secondary IDE HDD
Connectors ...........................................................................
15
CN5 Ð IR Connector ............................................................ 15
CN2 Ð Keyboard Connector ................................................ 15
J17 Ð Keylock & Power LED Connector ............................ 15
CN1 Ð PS/2 Mouse Connector ............................................ 15
PRT Ð Parallel Port Connector ............................................ 15
PW Ð Power Supply Connector ........................................... 15
J23: Sleep Switch Connector Enable/Disable ..................... 16
CN3 Ð Universal Serial Bus Connectors ............................. 16