Gigabyte GA-7VT880, GA-7VT880-L User Manual

When you installing AGP card, please make sure the following notice is fully understood and practiced. If your AGP card has "AGP 4X/8X (1.5V) notch"(show below), please make sure your AGP card is AGP 4X/8X.

AGP 4X/8X notch

Caution: AGP 2X card is not supported by VIA KT880. You might experience system unable to boot up normally. Please insert an AGP 4X/8X card.

Example 1: Diamond Vipper V770 golden finger is compatible with 2X/4X mode AGP slot. It can be switched between AGP 2X(3.3V) or 4X(1.5V) mode by adjusting the jumper. The factory default for this card is 2X(3.3V). The GA-7VT880 Pro / GA-7VT880-L / GA-7VT880 (or any AGP 4X/8X only) motherboards might not function properly, if you install this card without switching the jumper to 4X(1.5V) mode in it.

Example 2: Some ATi Rage 128 Pro graphics cards made by "Power Color", the graphics card manufacturer & some SiS 305 cards, their golden finger is compatible with 2X(3.3V) / 4X(1.5V) mode AGP slot, but they support 2X(3.3V) only. The GA-7VT880 Pro / GA-7VT880-L / GA-7VT880 (or any AGP 4X/8X only) motherboards might not function properly, If you install this card in it.

Note : Although Gigabyte's AG32S(G) graphics card is based on ATi Rage 128 Pro chip, the design of AG32S(G) is compliance with AGP 4X(1.5V) specification. Therefore, AG32S(G) will work fine with VIA KT880 based motherboards.

Before you install PCI cards, please remove the Dual BIOS label from PCI slots if there is one.

The author assumes no responsibility for any errors or omissions that may appear in this document nor does the author make a commitment to update the information contained herein.

Third-party brands and names are the property of their respective owners.

Please do not remove any labels on motherboard, this may void the warranty of this motherboard.

Due to rapid change in technology, some of the specifications might be out of date before publication of this booklet.

Mother Board

GA-7VT880 Pro / GA-7VT880-L / GA-7VT880

May 13, 2004

DECLARATION OF CONFORMITY

Per FCC Part 2 Section 2.1077(a)

Responsible Party Name:G.B.T. INC. (U.S.A.)

Address: 17358 Railroad Street City of Industry, CA 91748

Phone/Fax No: [phone]/ [phone] hereby declares that the product

Product Name: Motherboard

Model Number: GA-7VT880 Pro /GA-7VT880-L /GA-7VT880

Conforms to the following specifications:

FCC Part 15, Subpart B, Section 15.107(a) and Section 15.109(a), Class B Digital Device

Supplementary Information:

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful and (2) this device must accept any inference received, including that may cause undesired operation.

Representative Person’s Name: ERIC LU

Signature: E r i c L u

Date: May 13, 2004

GA-7VT880 Series

AMD Socket A Processor Motherboard

USER'S MANUAL

AMD Athlon™ / Athlon™ XP / Duron™ Socket A Processor Motherboard

Rev. 1002 12ME-7VT880-1002

English

Table of Content
Warning ..................................................................................................	4
Chapter 1 Introduction ...........................................................................	5
Features Summary .....................................................................................	5
GA-7VT880 Series Motherboard Layout ....................................................	7
Block Diagram - GA-7VT880 Series ..........................................................	8
Chapter 2 Hardware Installation Process ..............................................	9
Step 1: Set System Jumper (SW1) ..............................................................	9
Step 2: Install the Central Processing Unit (CPU) ....................................	10
Step 2-1: CPU Installation ..............................................................................................	10
Step 2-2: CPU Cooling Fan Installation ........................................................................	11
Step 3: Install Memory Modules ...............................................................	12
Step 4: Install expansion cards .................................................................	13
Step 5: Connect ribbon cables, cabinet wires and power supply ............	14
Step 5-1: I/O Back Panel Introduction ...........................................................................	14
Step 5-2: Connectors Introduction .................................................................................	16
Chapter 3 BIOS Setup ........................................................................	31
The Main Menu (For example: BIOS Ver. : E9) .......................................	32
Standard CMOS Features ........................................................................	34
Advanced BIOS Features .........................................................................	36
Integrated Peripherals ..............................................................................	37

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Power Management Setup .......................................................................		40
PnP/PCI Configurations ............................................................................		41
PC Health Status .......................................................................................		42
MB Intelligent Tweaker (M.I.T) .................................................................		43
Load Fail-Safe Defaults ............................................................................		45
Load Optimized Defaults ..........................................................................		45
Set Supervisor/User Password .................................................................		46
Save & Exit Setup ......................................................................................		47
Exit Without Saving ...................................................................................		47
Chapter 4	Technical Reference...........................................................	49
@BIOS™	Introduction ................................................................................	49
Flash BIOS Method Introduction ..............................................................		50
2- / 4- / 6-Channel Audio Function Introuction ..........................................		57
Jack-Sensing and UAJ Introduction .........................................................		63
Xpress Recovery Introduction ...................................................................		67
Serial ATA RAID BIOS Utility Introduction ..................................................		71
Chapter 5 Appendix ............................................................................		79

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Table of Content

English

Warning

Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips. To protect them against damage from static electricity, you should follow some precautions whenever you work on your computer.

1.Unplug your computer when working on the inside.

2.Use a grounded wrist strap before handling computer components. If you do not have one, touch both of your hands to a safely grounded object or to a metal object, such as the power supply case.

3.Hold components by the edges and try not touch the IC chips, leads or connectors, or other components.

4.Place components on a grounded antistatic pad or on the bag that came with the components whenever the components are separated from the system.

5.Ensure that the ATX power supply is switched off before you plug in or remove the ATX power connector onthe motherboard.

Installing the motherboard to the chassis...

If the motherboard has mounting holes, but they don't line up with the holes on the base and there are no slots to attach the spacers, do not become alarmed you can still attach the spacers to the mounting holes. Just cut the bottom portion of the spacers (the spacer may be a little hard to cut off, so be careful of your hands). In this way you can still attach the motherboard to the base without worrying about short circuits. Sometimes you may need to use the plastic springs to isolate the screw from the motherboard PCB surface, because the circuit wire may be near by the hole. Be careful, don't let the screw contact any printed circuit write or parts on the PCB that are near the fixing hole, otherwise it may damage the board or cause board malfunctioning.

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Chapter 1 Introduction

Features Summary

Motherboard	GA-7VT880 Series:
	GA-7VT880 Pro / GA-7VT880-L / GA-7VT880
CPU	Socket A processor
	AMD AthlonTM/ AthlonTM XP/ DuronTM (K7)
	128K L1 & 512K/256K/64K L2 cache on die
	200/266/333/400 MHz FSB
	Supports 1.4GHz and faster
Chipset	VIA KT880 Memory/AGP Controller (PAC)
	VIA VT8237 Integrated Peripheral Controller (PSIPC)
Memory	4 184-pin DDR sockets,supports up to 4.0GB DDR (Max)(Note 1)
	Supports Dual Channel DDR400/DDR333/DDR266
	Supports 128MB/256MB/512MB/1GB unbuffered DRAM
	Supports only 2.5V DDR DIMM
Slots	1 AGP slot supports 8X/4X mode(1.5V) & AGP 3.0 compliant
	5 PCI slots supports 33MHz & PCI 2.2 compliant
On-Board IDE	2 IDE controllers provides IDE HDD/CD-ROM (IDE1, IDE2)
	with PIO, Bus Master (Ultra DMA33/ATA66/ATA100/ATA133)
	operation mode
On-Board Floppy	1 Floppy port supports 2 FDD with 360K, 720K,1.2M, 1.44M and
	2.88M bytes
On-Board SATA(Note2)	2 Serial ATA connectors
	2 SATA connectors controlled by VIA VT8237(SATA0,SATA1)
On-Board Peripherals	1 Parallel port supports Normal/EPP/ECP mode
	2 Serial ports (COMA & COMB)
	3 x IEEE1394 ports (by cable)
	8 x USB 2.0/1.1 (rearx4, frontx4 by cable)
	1 Front Audio connector
	1 IrDA connector for IR
	1 PS/2 keyboard
	1 PS/2 mouse
On-Board LAN	Built-in RTL8110S (10/100/1000 Mbit)(1)
	Built-in RTL8100C (10/100 Mbit)(2)
	1 RJ45 ports

(Note 1)	Due to standard PC architecture, a certain amount of memory is reserved for system usage and therefore the
	actual memory size is less than the stated amount.For example, 4 GB of memory size will instead be shown as 3.
	xxGB memory during ystem startup.
(Note 2)	It is recommended to use SATA (1.5Gb/s) hard disks.
1 Only for GA-7VT880 Pro. 2 Only for GA-7VT880-L.		to be continued......

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Introduction

English

On-Board Sound	—	Realtek ALC658 CODEC(UAJ)
	—	Supports Jack Sensing function
	—	Supports 2-/4-/6-channel
	— Line Out / Line In / Mic In
	— SPDIF Out /SPDIF In
	—	CD In / AUX In / Game connector
On-Board IEEE1394	—	Built-in VIA VT6306
On-Board SATA RAID	—	Built-in VIA VT8237
(SATA0, SATA1)	—	Supports disk striping (RAID 0) or disk mirroring (RAID 1)
	—	Supports up to 150MB/s data transfer rate
	—	Up to 2 SATA devices
I/O Control	—	IT8705F
Hardware Monitor	—	CPU/System Fan Revolution detect
	—	CPU temperature detect
	—	System voltage detect
	— CPU/System fan fail warning
	—	Thermal shutdown function
BIOS	— Licensed Award BIOS
	— Supports Q-Flash / Dual BIOS j
Additional Features	—	Supports @BIOS
	—	Supports EasyTune
Overclocking	— Over Voltage (CPU/AGP/DDR/PCI) by BIOS
	— Over Clock (CPU/AGP/DDR/PCI) by BIOS
Form Factor	—	30.5cm x 24.4cm ATX size form factor, 4 layers PCB.

Please set the CPU host frequency in accordance with your processor's specifications. We don't recommend you to set the system bus frequency over the CPU's specification because these specific bus frequencies are not the standard specifications for CPU, chipset and most of the peripherals. Whether your system can run under these specific bus frequencies properly will depend on your hardware configurations, including CPU, Chipsets, SDRAM, Cards… etc.

j Only for GA-7VT880 Pro.

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GA-7VT880 Series Motherboard Layout

KB_MS

COMA
	LPT
COMB
USB
USB	LANjk

AUDIO

F_AUDIO

CPU_FAN

SOCKET A

VIA KT880

ATX_12V

SW1

RLT8110Sj

RLT8100Ck

		CODEC	CD_IN
	SUR_CEN		IR
		IT8705F	IN
	Lk		AUX
	-

GAME

SPDIF_IO

LEDj

_RAM FAN _PWR ATX

GA-7VT880 Pro

FDD

						IDE1 IDE2
	AGP	DDR1	DDR2	DDR3	DDR4	BATTERY
							CMOSCLR
PCI1						SATA1
				VT8237		SATA0
PCI2	Backup					SYSFAN	LINK
	BIOSj						_
						CI	INFO
PCI3
	Main
	BIOS
PCI4					VT6306		F PANEL
PCI5						PWR_LED
				F2_1394	F1_1394
F_USB1 F_USB2

j Only for GA-7VT880 Pro. k Only for GA-7VT880-L.

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Introduction

English

Block Diagram

CPUCLK+/- (100/133/166/200MHz) AMD-K7TM

AGP 4X/8X

	AGPCLK	System Bus
	(66MHz)
		100/133/166/200MHz
		Dual Channel DDR
		VIA KT880

5 PCI	RJ45jk			33 MHz
				14.318 MHz	Dual
	RTL8110Sj				BIOSj
	RTL8100Ck				IR
				LPC BUS	Game Port
			VIA VT8237	IT8705F	Floppy
	Link
					LPT Port
	AC97				2 COM Ports
				24 MHz
	AC97			33 MHz
				VT6306
	CODEC
PCICLK	2 Serial ATA			PS/2 KB/Mouse
	MIC LINE-IN	OUT-LINE
(33MHz)			8 USB

Ports

3 IEEE1394

ATA33/66/100/133

IDE Channels

j Only for GA-7VT880 Pro. k Only for GA-7VT880-L.

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Chapter 2 Hardware Installation Process

To set up your computer, you must complete the following steps: Step 1- Set system jumper (SW1)

Step 2- Install the Central Processing Unit (CPU) Step 3- Install memory modules

Step 4- Install expansion cards

Step 5- Connect ribbon cables, cabinet wires, and power supply

Step 2

Step 3

Step 5

Step 5

Step 1

Step 4

Step 5

Step 1: Set System Jumper (SW1)

The system bus frequency can be switched at 100/133/166/200MHz by adjusting SW1.

SW1
ON	100MHz
OFF	AUTO

100MHz : Fix FSB 200MHz CPU

AUTO : Supports FSB 400/333/266 MHz CPU

You must set SW1 to "ON" when you used FSB 200MHz CPU.

ON SW1

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Hardware Installation Process

English

Step 2: Install the Central Processing Unit (CPU)

Before installing the processor, adhere to the following warning: 1. Please make sure the CPU type is supported by the motherboard.

2.If you do not match the CPU socket Pin 1 and CPU cut edge well, it will cause improper installation. Please change the insert orientation.

Step 2-1: CPU Installation

CPU Top View

CPU Bottom View

Socket Actuation Lever

Pin1 indicator

1Pull up the CPU socket lever and up to 90-degree angle.

2.Locate Pin 1 in the socket and look for a (golden) cut edge on the CPU upper corner. Then insert the CPU into the socket.

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Step 2-2: CPU Cooling Fan Installation

Before installing the CPU cooling fan, adhere to the following warning: 1. Please use AMD approved cooling fan.

2.We recommend you to apply the thermal tape to provide better heat conduction between your CPU and cooling fan.

3.Make sure the CPU fan power cable is plugged in to the CPU fan connector, this completes the installation.

Please refer to CPU cooling fan user's manual for more detail installation procedure.

English

1.Press down the CPU socket lever and finish CPU installation.

3.Fasten the cooling fan supportingbase onto the CPU socket on the motherboard.

2. Use qualified fan approved by AMD.

4.Make sure the CPU fan is plugged to the CPU fan connector, than install complete.

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Hardware Installation Process

English

Step 3: Install Memory Modules

Before installing the memory modules, adhere to the following warning:

1.When RAM_LED is ON, do not install / remove DIMM from socket.

2.Please note that the DIMM module can only fit in one direction due to the one notch. Wrong orientation will cause improper installation. Please change the insert orientation.

The motherboard has 4 dual inline memory module (DIMM) sockets. The BIOS will automatically detects memory type and size. To install the memory module, just push it vertically into the DIMM socket. The DIMM module can only fit in one direction due to the notch. Memory size can vary between sockets.

Notch

DDR

1. The DIMM socket has a notch, so the DIMM memory module can only fit in one direction.

2. Insert the DIMM memory module vertically into the DIMM socket. Then push it down.

3. Close the plastic clip at both edges of the DIMM sockets to lock the DIMM module.

Reverse the installation steps when you wish to remove the DIMM module.

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Dual Channel DDR:

GA-7VT880 Pro / GA-7VT880-L / GA-7VT880 support Dual Channel Technology. When Dual Channel Technology is activated, the bandwidth of memory bus will be double the original one, with the fastest speed at 6.4GB/s(DDR400) .

GA-7VT880 Pro / GA-7VT880-L / GA-7VT880 include 4 DIMM slots, and each Channel has 2 DIMMs as following: Channel A : DDR 1, 2

Channel B : DDR 3, 4 Below are the explanations:

If you want to operate the Dual Channel Technology, please note the following explanations due to the limitation of VIA chipset specifications.

1.Only one DDR memory module is installed: The Dual Channel Technology can't operate when only one DDR memory module is installed.

2.Two DDR memory modules are installed: The Dual Channel Technology will operate when two memory modules are inserted individually into Channel A and B and must use the same memory frequency & memory size. If you install two memory modules in the same channel,the Dual Channel Technology will not operate.

The following tables include all memory-installed combination types: (Please note that this types not in the tables will not boot up.)

• Figure 1: Dual Channel Technology (DS: Double Side, SS: Single Side)

	DDR 1	DDR 2	DDR 3	DDR 4
2 memory modules	DS/SS	X	DS/SS	X
	X	DS/SS	X	DS/SS
4 memory modules	DS/SS	DS/SS	DS/SS	DS/SS

Step 4: Install expansion cards

1.Read the related expansion card's instruction document before install the expansion card into the computer.

2.Remove your computer's chassis cover, screws and slot bracket from the computer.

3.Press the expansion card firmly into expansion slot in motherboard.

4.Be sure the metal contacts on the card are indeed seated in the slot.

5.Replace the screw to secure the slot bracket of the expansion card.

6.Replace your computer's chassis cover.

7.Power on the computer, if necessary, setup BIOS utility of expansion card from BIOS.

8.Install related driver from the operating system.

Please carefully pull out the small white-drawable bar at the end of the AGP slot when you try to install / uninstall the AGP card. Please align the AGP card to the onboard AGP slot and press firmly down on the slot. Make sure your AGP card is locked by the small whitedrawable bar.

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Hardware Installation Process

English

English

Step 5: Connect ribbon cables, cabinet wires and power supply

Step 5-1: I/O Back Panel Introduction

PS/2 Keyboard and PS/2 Mouse Connector

PS/2 Mouse Connector (6 pin Female)

PS/2 Keyboard Connector (6 pin Female)

This connector supports standard PS/2 keyboard and PS/2 mouse.

Parallel Port, Serial Ports (COMA / COMB)

Parallel Port (25 pin Female)

COMA COMB Serial Port (9 pin Male)

This connector supports 2 standard COM ports and 1 Parallel port. Devices like printer can be connected to Parallel port; mouse and modem etc. can be connected to Serial ports.

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/ USB/LANjk

USB 0

USB 1

Audio Connectors

Line In

Line Out

MIC In

Connector

LANjk

USB 2

USB 3

Before you connect your device(s) into USB connector(s), please make sure your device(s) such as USB keyboard,mouse, scanner, zip, speaker...etc. Have a standard USB interface. Also make sure your OS supports USB controller. If your OS does not support USB controller, please contact OS vendor for possible patch or driver upgrade. For more information please contact your OS or device

(s) vendors.

After install onboard audio driver, you may connect speaker to Line Out jack, microphone to MIC In jack. Device like CD-ROM,walkman etc. can be connected to Line-In jack.

Please note:

You are able to use 2-/4-/6-/8-channel audio feature by S/W selection.

If you want to enable 8-channel function you can refer to page 24, and contact your nearest dealer for optional SUR_CEN cable.

English

If you want the detail information for 2-/4-/6-channel audio setup installation, please refer to page 57.

j Only for GA-7VT880 Pro. k Only for GA-7VT880-L.

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Hardware Installation Process

English

Step 5-2: Connectors Introduction

3	1	12
		5(j)
		2
		7
13		6
		10
		23
		8
16		22
14		4
		9
17
		24

	21 15 20	18	19(j) 11
1)	ATX_12V	13)	F_AUDIO
2)	ATX	14)	SUR_CEN
3)	CPU_FAN	15)	SPDIF_IO
4)	SYS_FAN	16)	CD_IN
5)	PWR_FAN(j)	17)	AUX_IN
6)	FDD	18)	F_USB1 / F_USB2
7)	IDE1 / IDE2	19)	F1_1394 / F2_1394
8)	SATA0 / SATA1	20)	IR
9)	F_PANEL	21)	GAME
10)	BAT	22)	INFO_LINK
11)	PWR_LED	23)	CLR_CMOS
12)	RAM_LED	24)	CI

j Only for GA-7VT880 Pro.

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1) ATX_12V (+12V Power Connector)

This connector (ATX_12V) supplies the CPU operation voltage (Vcore). If this "ATX_12V connector" is not connected, system cannot boot.

	1	3	Pin No.	Definition
			1	GND
			2	GND
	2	4	3	+12V
			4	+12V

2) ATX (ATX Power)

AC power cord should only be connected to your power supply unit after ATX power cable and other related devices are firmly connected to the mainboard.

		Pin No.	Definition
		1	3.3V
		2	3.3V
10	20	3	GND
		4	VCC
		5	GND
		6	VCC
		7	GND
		8	Power Good
		9	5V SB (stand by +5V)
		10	+12V
		11	3.3V
		12	-12V
		13	GND
1	11	14	PS_ON(soft on/off)
		15	GND
		16	GND
		17	GND
		18	-5V
		19	VCC
		20	VCC

English

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Hardware Installation Process

English

3) CPU_FAN (CPU Fan Connector)

Please note, a proper installation of the CPU cooler is essential to prevent the CPU from running under abnormal condition or damaged by overheating. The CPU fan connector supports Max. current up to 600 mA.

1	Pin No.	Definition
	1	GND
	2	+12V
	3	Sense

4) SYS_FAN (System Fan Connector)

This connector allows you to link with the cooling fan on the system case to lower the system temperature.

Pin No. Definition

1 GND

1

2 +12V

3 Sense

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5) PWR_FAN (Power Fan Connector)(j)

This connector allows you to link with the cooling fan on the system case to lower the system temperature.

	Pin No.	Definition
	1	GND
1	2	+12V
	3	Sense

6) FDD (Floppy Connector)

Please connect the floppy drive ribbon cables to FDD. It supports 360K, 1.2M, 720K, 1.44M and 2.88M bytes floppy disk types.

The red stripe of the ribbon cable must be the same side with the Pin1.

34 33

2 1

j Only for GA-7VT880 Pro.

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Hardware Installation Process

English

7) IDE1 / IDE2 (IDE1 / IDE2 Connector)

Important Notice:

Please connect first hard disk to IDE1 and connect CD-ROM to IDE2. The red stripe of the ribbon cable must be the same side with the Pin1.

40

39

2

1

IDE2 IDE1

8) SATA0 / SATA1 (Serial ATA Connector)

You can connect the Serial ATA device to this connector, it provides you high speed transfer rates (150MB/sec). If you wish to use RAID function, please use it in unity with BIOS and install the correct driver to have proper operation. For details, please refer to the SATA RAID manual.

		Pin No.	Definition
		1	GND
		2	TXP
7	1	3	TXN
		4	GND
		5	RXN
		6	RXP
		7	GND

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9) F_PANEL (2 x 10 pins Connector)

Please connect the power LED, PC speaker, reset switch and power switch etc. of your chassis front panel to the F_PANEL connector according to the pin assignment above.

	SPEAK-	20 19
Speaker
Connector	SPEAK+
		1
Soft Power	PW-			NC
			1	RES+
Connector	PW+	1		RES-	Reset Switch
Message LED/	MSG-			HD-	IDE Hard Disk
Power/	MSG+	1	1	HD+	Active LED
Sleep LED		2	1

English

HD (IDE Hard Disk Active LED)	Pin 1: LED anode(+)
(Blue)	Pin 2: LED cathode(-)
SPK (Speaker Connector)	Pin 1: VCC(+)
(Amber)	Pin 2- Pin 3: NC
	Pin 4: Data(-)
RES (Reset Switch)	Open: Normal Operation
(Green)	Close: Reset Hardware System
PW (Soft Power Connector)	Open: Normal Operation
(Red)	Close: Power On/Off
MSG(Message LED/ Power/ Sleep LED)	Pin 1: LED anode(+)
(Yellow)	Pin 2: LED cathode(-)
NC (Purple)	N C

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Hardware Installation Process

English

10) BATTERY

+

CAUTION

Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type recommended by the manufacturer.

Dispose of used batteries according to the manufacturer's instructions.

If you want to erase CMOS...

1.Turn OFF the computer and unplug the power cord.

2.Remove the battery, wait for 30 second.

3.Re-install the battery.

4.Plug the power cord and turn ON the computer.

11) PWR_LED

PWR_LED is connect with the system power indicator to indicate whether the system is on/off. It will blink when the system enters suspend mode. If you use dual color LED, power LED will turn to another color.

		Pin No.	Definition
		1	MPD+
	1	2	MPD-
		3	MPD-

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12) RAM_LED

Do not remove memory modules while RAM_LED is on. It might cause short or other unexpected damages due to the stand by voltage. Remove memory modules only when AC power cord is disconnected.

_	+

English

13) F_AUDIO (Front Audio Connector)

If you want to use Front Audio connector, you must remove 5-6, 9-10 Jumper.

In order to utilize the front audio header, your chassis must have front audio connector. Also please make sure the pin assigment on the cable is the same as the pin assigment on the MB header. To find out if the chassis you are buying support front audio connector, please contact your dealer. Please note, you can have the alternative of using front audio connector or of using rear audio connector to play sound.

		Pin No.	Definition
		1	MIC
		2	GND
		3	MIC_BIAS
10	9	4	Power
		5	Front Audio (R)
2	1	6	Rear Audio (R)
		7	Reserved
		8	No Pin
		9	Front Audio (L)
		10	Rear Audio (L)

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Hardware Installation Process

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14) SUR_CEN (Surround Center Connector)

Please contact your nearest dealer for optional SUR_CEN cable.

	1	2	Pin No.	Definition
			1	SUR OUTL
	5	6
			2	SUR OUTR
			3	GND
			4	No Pin
			5	CENTER_OUT
			6	BASS_OUT

15) SPDIF_IO (SPDIF In / Out Connector)

The SPDIF output is capable of providing digital audio to external speakers or compressed AC3 data to an external Dolby Digital Decoder. Use this feature only when your stereo system has digital input function. Be careful with the polarity of the SPDIF_IO connector. Check the pin assignment carefully while you connect the SPDIF_IO cable, incorrect connection between the cable and connector will make the device unable to work or even damage it. For optional SPDIF_IO cable, please contact your local dealer.

2	6	Pin No.	Definition
		1	VCC
		2	No Pin
1	5	3	SPDIF_O
		4	SPDIFI
		5	GND
		6	GND

GA-7VT880 Serie Motherboard

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16) CD_IN (CD In Connector)

Connect CD-ROM or DVD-ROM audio out to the connector.

1	Pin No.	Definition
	1	CD-L
	2	GND
	3	GND
	4	CD-R

17) AUX_IN (AUX In Connector)

Connect other device (such as PCI TV Tunner audio out) to the connector.

1	Pin No.	Definition
	1	AUX-L
	2	GND
	3	GND
	4	AUX-R

English

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Hardware Installation Process