Gigabyte GA-H55M-S2 User Manual download pdf (Page 49)

- 49 - BIOS Setup

CPU Smart FAN Mode

Species how to control CPU fan speed. This item is congurable only if CPU Smart FAN Control is set

to Enabled.

Auto Lets the BIOS automatically detect the type of CPU fan installed and sets the optimal

CPU fan control mode. (Default)

Voltage Sets Voltage mode for a 3-pin CPU fan.

PWM Sets PWM mode for a 4-pin CPU fan.

Note: The Voltage mode can be set for a 3-pin CPU fan or a 4-pin CPU fan. However, for a 4-pin CPU

fan that is not designed following Intel PWM fan specications, selecting PWM mode may not effectively

reduce the fan speed.

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GA-H55M-S2 1
Motherboard 2
Jun. 21, 2010 2
Copyright 3
Disclaimer 3
Documentation Classications 3
Table of Contents 4
Box Contents 6
Optional Items 6
GA-H55M-S2 Motherboard Layout 7
Realtek 8
RTL8111E 8
1-1 Installation Precautions 9
1-2 Product Specications 10
1-3-1 Installing the CPU 12
1-4 Installing the Memory 15
1-4-2 Installing a Memory 16
PCI Slot 17
PCI Express x16 Slot 17
PCI Express x1 Slot 17
1-6 Back Panel Connectors 18
1-7 Internal Connectors 19
6) BAT (Battery) 22
System Status LED 23
S0 On 23
S1 Blinking 23
S3/S4/S5 Off 23
Open: Normal 25
Short: Clear CMOS Values 25
- 26 -Hardware Installation 26
Chapter 2 BIOS Setup 27
2-1 Startup Screen 28
2-2 The Main Menu 29
M.I.T. Current Status 31
Miscellaneous Settings 38
Isochronous Support 38
Virtualization Technology 38
2-4 Standard CMOS Features 39
Halt On 40
Memory 40
2-5 Advanced BIOS Features 41
2-6 Integrated Peripherals 43
Azalia Codec 44
Onboard H/W LAN 44
Green LAN 44
SMART LAN 44
Onboard LAN Boot ROM 45
2-7 Power Management Setup 46
2-8 PC Health Status 48
CPU Smart FAN Mode 49
2-9 Load Fail-Safe Defaults 50
2-10 Load Optimized Defaults 50
2-12 Save & Exit Setup 52
2-13 Exit Without Saving 52
3-2 Application Software 54
3-3 Technical Manuals 54
3-4 Contact 55
3-5 System 55
3-6 Download Center 56
3-7 New Utilities 56
Chapter 4 Unique Features 57
4-2 BIOS Update Utilities 60
B. Updating the BIOS 61
A. Before You Begin 63
B. Using @BIOS 63
C. After Updating the BIOS 63
4-3 EasyTune 6 64
4-4 Q-Share 65
4-5 Auto Green 66
Chapter 5 Appendix 67
B. Conguring Sound Effect 68
* Enabling Stereo Mix 71
A. Recording Sound 72
B. Playing the Recorded Sound 72
5-2 Troubleshooting 73
Appendix - 74 74
- 75 - Appendix 75
5-3 Regulatory Statements 76
Appendix - 78 78
Contact Us 79
Appendix - 80 80

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