MSI 845 PRO4 Instruction Manual download pdf (Page 36)

Chapter 2

2-24

IrDA Infrared Module Connector: IR1 & IR2 (optional)

These connectors allow you to connect to IrDA Infrared modules.

You must configure the setting through the BIOS setup to use the IR

function. The difference between IR1 & IR2 is that IR2 is compliant to

Intel Front Panel I/O Connectivity Design Guide.

PIN SIGNAL

1 VCC

2 NC

3 IRRX

4 GND

5 IRTX

IR1 Pin Definition

IR2

1 2

5 6

IR1

1 Not assigned

2NC

3 VCC

4 GND

5 IRTX

6 IRRX

PIN SIGNAL

IR2 Pin Definition

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 83 84

845 PRO4 1
Notice 1 2
Notice 2 2
Copyright Notice 3
Trademarks 3
Revision History 3
Safety Instructions 4
Contents 5
Introduction 8
Mainboard Specifications 9
On-Board Peripherals 10
Dimension 10
Mounting 10
Mainboard Layout 11
Quick Components Guide 12
Hardware Setup 13
Central Processing Unit: CPU 14
WARNING! 15
Installing the CPU Fan 16
Retention Mechanism 16
Fan power cable 17
Memory Installation 18
Power Supply 20
Back Panel 22
Keyboard Connector 23
USB Connectors 23
Chapter 2 24
LAN Jack (RJ-45) (optional) 25
Parallel Port Connector: LPT1 26
Connectors 27
IDE2 IDE1 28
LED Status Description 31
CD-In Connector 35
AUX Line-In Connector 35
Modem-In Connector 35
JAUDIO2(optional) 38
Caution!!! 39
Clear CMOS Jumper: JBAT1 40
PCI Slot 42
CNR Slot 42
AGP Slot 42
ISA Slot 42
BIOS Setup 44
Chapter 3 Award 44
Control Keys 45
Entering Setup 45
Getting Help 46
Main Menu 47
Standard CMOS Features 49
Time (hh:mm:ss) 50
Drive A/B 51
Base/Extended/Total Memory 51
Advanced BIOS Features 52
CPU L1 & L2 Cache 53
Quick Boot 53
1st/2nd/3rd Boot Device 53
Boot Other Device 53
Swap Floppy 53
Security Option 55
APIC Mode 55
MPS Version Control For OS 55
Boot OS/2 For DRAM > 64MB 55
Hard Disk S.M.A.R.T 55
BIOS Flash Write Control 56
Advanced Chipset Features 57
AGP Aperture Size (MB) 59
Integrated Peripherales 60
Chapter 3 61
AC’97 Audio 62
AC’97 Modem 62
Onboard/CNR LAN Selection 62
IDE HDD Block Mode 62
Floppy Controller 62
Parallel Port Mode 63
EPP Version 63
ECP Mode Use DMA 63
Onboard Game Port 63
Onboard Midi Port 64
Midi IRQ Select 64
Power Management Setup 65
IPCA Function 66
ACPI Standby State 66
Power Management/APM 66
MODEM Use IRQ 66
CPU THRM-Throttling 68
Resume by RTC Alarm 68
POWER ON Function 68
KB Power ON Password 68
Hot Key Power ON 68
Power Again 69
Sleep State LED 69
PnP/PCI Configurations 70
Resource Controlled By 71
DMA/IRQ Resources 71
PCI/VGA Palette Snoop 71
PC Health Status 72
Power Fan 73
CPU Critical Temperature 73
Frequency/Voltage Control 74
DRAM Voltage Adjust 75
CPU FSB Clock (Mhz) 75
CPU Vcore Adjust 75
Set Supervisor/User Password 77
Quit Without Saving(Y/N)? Y 79
SAVE to CMOS and Exit(Y/N)? Y 79
Glossary 80
Appendix A 81

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MSI 845 PRO4 Instruction Manual Page 36

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