Gigabyte GA-MA790X-UD4 User Manual Page 20
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GA-MA790X-UD4 Motherboard - 20 -
1-7 Back Panel Connectors
• When removing the cable connected to a back panel connector, first remove the cable
from your device and then remove it from the motherboard.
• When removing the cable, pull it straight out from the connector. Do not rock it side to side
to prevent an electrical short inside the cable connector.
Activity LED
Connection/
Speed LED
LAN Port
Activity LED:
State Description
Blinking Data transmission or receiving is occurring
Off No data transmission or receiving is occurring
Connection/Speed LED:
State Description
Orange 1 Gbps data rate
Green 100 Mbps data rate
Off 10 Mbps data rate
PS/2 Keyboard and PS/2 Mouse Port
Use the upper port (green) to connect a PS/2 mouse and the lower port (purple) to connect a
PS/2 keyboard.
Coaxial S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital coaxial
audio. Before using this feature, ensure that your audio system provides a coaxial digital audio in
connector.
Optical S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital optical
audio. Before using this feature, ensure that your audio system provides an optical digital audio in
connector.
USB Port
The USB port supports the USB 2.0/1.1 specification. Use this port for USB devices such as an
USB keyboard/mouse, USB printer, USB flash drive and etc.
IEEE 1394a Port
The IEEE 1394 port supports the IEEE 1394a specification, featuring high speed, high bandwidth
and hotplug capabilities. Use this port for an IEEE 1394a device.
RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
- GA-MA790X-UD4 1
- Motherboard 2
- Dec. 5, 2008 2
- Copyright 3
- Disclaimer 3
- Documentation Classifications 3
- Table of Contents 4
- Box Contents 6
- Optional Items 6
- Block Diagram 8
- 1-1 Installation Precautions 9
- 1-2 Product Specifications 10
- (Note 4) 11
- (Note 5) 12
- (Note 6) 12
- 1-3-1 Installing the CPU 13
- CPU Socket Locking 14
- 1-4 Installing the Memory 16
- 1-4-2 Installing a Memory 17
- PCI Express x1 Slot 18
- PCI Slot 18
- PCI Express x16 Slot 18
- CrossFireX.) 19
- 1-7 Back Panel Connectors 20
- 1-8 Internal Connectors 22
- 7) IDE (IDE Connector) 25
- 10) BATTERY 26
- System Status LED 27
- S1 Blinking 27
- S3/S4/S5 Off 27
- 16) COM (Serial Port Header) 30
- Open: Normal 31
- Short: Clear CMOS Values 31
- Chapter 2 BIOS Setup 33
- 2-1 Startup Screen 34
- 2-2 The Main Menu 35
- CPU Clock Ratio 37
- CPU NorthBridge Freq 37
- CPU Host Clock Control 37
- CPU Frequency (MHz) 37
- PCIE Clock (MHz) 38
- HT Link Frequency 38
- Set Memory Clock 38
- Memory Clock 38
- DRAM Configuration 38
- 2-4 Standard CMOS Features 41
- Floppy 3 Mode Support 42
- 2-5 Advanced BIOS Features 43
- Password Check 44
- HDD S.M.A.R.T. Capability 44
- Away Mode 44
- Full Screen LOGO Show 44
- Init Display First 44
- 2-6 Integrated Peripherals 45
- 2-7 Power Management Setup 48
- 2-8 PnP/PCI Configurations 50
- 2-9 PC Health Status 51
- 2-10 Load Fail-Safe Defaults 53
- 2-11 Load Optimized Defaults 53
- 2-13 Save & Exit Setup 55
- 2-14 Exit Without Saving 55
- 3-2 Application Software 58
- 3-3 Technical Manuals 58
- 3-4 Contact 59
- 3-5 System 59
- 3-6 Download Center 60
- Chapter 4 Unique Features 61
- B. Accessing Xpress Recovery2 62
- E. Removing the Backup 63
- F. Exiting Xpress Recovery2 63
- 4-2 BIOS Update Utilities 64
- B. Updating the BIOS 65
- A. Before You Begin: 67
- B. Using @BIOS: 67
- C. After Updating the BIOS: 67
- 4-3 EasyTune 6 68
- 4-4 Easy Energy Saver 69
- B. Total Mode 70
- C. Stealth Mode 70
- 4-5 Q-Share 71
- 4-6 Time Repair 72
- Chapter 5 Appendix 73
- A. Installing Windows XP 80
- B. Installing Windows Vista 81
- A. Configuring Speakers: 84
- B. Configuring Sound Effect: 85
- S/PDIF in: 86
- S/PDIF out: 86
- S/PDIF Coaxial Cable 87
- S/PDIF Optical Cable 87
- * Enabling Stereo Mix 89
- A. Recording Sound: 90
- 5-3 Troubleshooting 91
- Appendix- 93 93
- 5-4 Regulatory Statements 94
- Appendix- 97 97
- Contact Us 99
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