Gigabyte GA-N680SLI-DQ6 User manual

GA-N680SLI-DQ6
Intel®CoreTM 2 Extreme quad-core / CoreTM 2 Quad /
Intel®CoreTM 2 Extreme dual-core / CoreTM 2 Duo /
Intel®Pentium®Processor Extreme Edition /
Intel®Pentium®D / Pentium®4 LGA775 Processor Motherboard
User's Manual
Rev. 2001
12ME-N680DQ6-2001R
* The WEEE marking on the product indicates this product must not be disposed of with user's other household waste
and must be handed over to a designated collection point for the recycling of waste electrical and electronic equipment!!
* The WEEE marking applies only in European Union's member states.

Motherboard
GA-N680SLI-DQ6
May. 08, 2007
Motherboard
GA-N680SLI-DQ6
May. 08, 2007

Copyright
©2007 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in the manual are legally registered to their respective companies.
Notice
The written content provided with this product is the property of Gigabyte.
No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any
means without Gigabyte's prior written permission. Specifications and features are subject to
change without prior notice.
Product Manual Classification
In order to assist in the use of this product, Gigabyte has categorized the user manual in the
following:
For quick installation, please refer to the "Hardware Installation Guide" included with the
product.
For detailed product information and specifications, please carefully read the
"Product User Manual".
For detailed information related to Gigabyte's unique features, please go to "Technology
Guide" section on Gigabyte's website to read or download the information you need.
For more product details, please click onto Gigabyte's website at www.gigabyte.com.tw

- 4 -
Table of Contents
ItemChecklist ................................................................................................................. 6
OptionalAccessories ...................................................................................................... 6
GA-N680SLI-DQ6 Motherboard Layout ......................................................................... 7
Block Diagram ................................................................................................................ 8
Chapter 1 Hardware Installation ..................................................................................... 9
1-1 Considerations Prior to Installation .................................................................... 9
1-2 Feature Summary .......................................................................................... 10
1-3 Installation of the CPU and CPU Cooler ....................................................... 13
1-3-1 Installation of the CPU ......................................................................................... 13
1-3-2 Installation of the CPU Cooler ............................................................................ 14
1-4 Installation of Memory .................................................................................... 15
1-5 Installation of Expansion Cards ...................................................................... 17
1-6 Connecting the e-SATA Cable Kit ................................................................... 18
1-7 Setup of SLI (Scalable Link Interface) Configuration ....................................... 19
1-8 I/O Back Panel Introduction ........................................................................... 22
1-9 Connectors Introduction .................................................................................. 23
Chapter 2 BIOS Setup................................................................................................ 35
The Main Menu (For example: BIOS Ver. : FAa) ..................................................... 37
2-1 Standard CMOS Features ............................................................................. 39
2-2 Advanced BIOS Features .............................................................................. 41
2-3 IntegratedPeripherals ..................................................................................... 43
2-4 Power Management Setup ............................................................................. 49
2-5 PnP/PCI Configurations ................................................................................. 51
2-6 PC Health Status ........................................................................................... 52
2-7 MB Intelligent Tweaker(M.I.T.) ....................................................................... 54
2-8 Load Fail-Safe Defaults ................................................................................... 57
2-9 Load Optimized Defaults ................................................................................. 57
2-10 Set Supervisor/User Password ..................................................................... 58
2-11 Save & Exit Setup ......................................................................................... 59
2-12 Exit Without Saving ....................................................................................... 59

- 5 -
Chapter 3 Drivers Installation ...................................................................................... 61
3-1 Install Chipset Drivers .................................................................................... 61
3-2 SoftwareApplications ..................................................................................... 62
3-3 Driver CD Information .................................................................................... 62
3-4 Hardware Information ..................................................................................... 63
3-5 Contact Us ..................................................................................................... 63
Chapter 4 Appendix ................................................................................................... 65
4-1 Unique Software Utilities ................................................................................ 65
4-1-1 EasyTune 5 Introduction ..................................................................................... 65
4-1-2 Xpress Recovery2 Introduction ......................................................................... 66
4-1-3 Flash BIOS Method Introduction ........................................................................ 68
4-1-4 Configuring SATA Hard Drive(s) ........................................................................ 75
A. nVIDIA®nForce 680i SLI Southbridge ........................................................................ 75
B. GIGABYTE SATA2 Controller ...................................................................................... 85
4-1-5 2- / 4- / 6- / 8- Channel Audio Function Introduction ...................................... 97
4-1-6 Windows Vista ReadyBoost ............................................................................ 104
4-2 Troubleshooting ............................................................................................. 105

- 6 -
Item Checklist
IDE Cable x 1, FDD Cable x 1
SATA 3Gb/s Cable x 4
I/O Shield
e-SATA Cable x 2
SLI Bridge (GC-SLICON6) x 1
Retention Bracket x 1
* The items listed above are for reference only, and are subject to change without notice.
Optional Accessories
2 Ports USB 2.0 Cable (Part Number: 12CR1-1UB030-51/R)
4 Ports USB 2.0 Cable (Part Number: 12CR1-1UB030-21/R)
2 Ports IEEE 1394 Cable (Part Number: 12CF1-1IE008-01R)
2 Ports SATA Power Cable (Part Number: 12CF1-2SERPW-01R)
S/PDIF-IN Cable (Part Number: 12CR1-1SPDIN-01R)

- 7 -
GA-N680SLI-DQ6 Motherboard Layout
KB_MS CPU_FAN
LGA775
ATX
GA-N680SLI-DQ6
CD_IN
F_AUDIO
MAIN
BIOS
SYS_FAN
FDD
PCIE_16_1
PCI1
F_USB3
CODEC
GIGABYTE
SATA2
SPDIF_IN
IDE
DDRII1
DDRII2
DDRII3
DDRII4
BACKUP
BIOS
PWR_FAN
F2_1394
F1_1394
TSB43AB23
PCIE_16_2
PCI3 BATTERY
SATAII1
F_PANEL
IT8718
Marvell
88E8056
ATX_12V_2X
PWR_LED
AUDIO
LPT
USB_LAN2
COMA
R_1394
OPTICAL
CLR_CMOS
F_USB2
F_USB1
PCIE_8
SATAII0
SATAII2
SATAII4
SATAII3
PCIE_12V
PCIE_1
CI
DUAL_LAN
USB_LAN1
SATAII5
GSATAII2-0
GSATAII2-1
GIGABYTE
SATA2
GSATAII1-0
GSATAII1-1
TPM
PCI2
Marvell
88E8052
Marvell
88E1116
Marvell
88E1116 nVIDIA®
nForce 680i SLI
Northbridge
nVIDIA®
nForce 680i SLI
Southbridge
NB_FAN

- 8 -
Block Diagram
LGA775
Processor
CPU CLK+/-(333/266/200/133 MHz)
Host Interface
3 PCI
PCI Bus
3 IEEE1394a
TSB43AB23
DDRII 800/667/533 MHz DIMM
Dual Channel Memory
6 SATA 3Gb/s
10 USB
Ports
Line-Out
MIC
CODEC
Line-In
SPDIF In
SPDIF Out
Side Speaker Out
Center/Subwoofer Speaker Out
Surround Speaker Out
ATA33/66/100/133
IDE Channel
PCIe CLK
(100 MHz)
PCI Express x16
LAN1
RJ45
LPC BUS
Floppy
LPT Port
COM Port
PS/2 KB/Mouse
nVIDIA®
nForce 680i SLI
Northbridge
Dual BIOS
PCI Express x8
IT8718
PCI Express x16
LAN2
RJ45
PCI CLK
(33 MHz)
Marvell 88E1116 x 2
nVIDIA®
nForce 680i SLI
Southbridge
1 PCI Express x1
PCI Express Bus
4 SATA 3Gb/s
x1
LAN
RJ45
GIGABYTE
SATA2 x 2
x1
LAN
Marvell
88E8056
Marvell
88E8052
RJ45
PCIe CLK
(100 MHz)

Hardware Installation- 9 -
English
1-1 Considerations Prior to Installation
Preparing Your Computer
The motherboard contains numerous delicate electronic circuits and components which can
become damaged as a result of electrostatic discharge (ESD). Thus, prior to installation, please
follow the instructions below:
1. Please turn off the computer and unplug its power cord.
2. When handling the motherboard, avoid touching any metal leads or connectors.
3. It is best to wear an electrostatic discharge (ESD) cuff when handling electronic components
(CPU, RAM).
4. Prior to installing the electronic components, please have these items on top of an antistatic pad or
within a electrostatic shielding container.
5. Please verify that the power supply is switched off before unplugging the power supply connector
from the motherboard.
Installation Notices
1. Prior to installation, please do not remove the stickers on the motherboard. These stickers are required
for warranty validation.
2. Prior to the installation of the motherboard or any hardware, please first carefully read the information
in the provided manual.
3. Before using the product, please verify that all cables and power connectors are connected.
4. To prevent damage to the motherboard, please do not allow screws to come in contact with the
motherboard circuit or its components.
5. Please make sure there are no leftover screws or metal components placed on the motherboard or
within the computer casing.
6. Please do not place the computer system on an uneven surface.
7. Turning on the computer power during the installation process can lead to damage to system
components as well as physical harm to the user.
8. If you are uncertain about any installation steps or have a problem related to the use of the product,
please consult a certified computer technician.
Instances of Non-Warranty
1. Damage due to natural disaster, accident or human cause.
2. Damage as a result of violating the conditions recommended in the user manual.
3. Damage due to improper installation.
4. Damage due to use of uncertified components.
5. Damage due to use exceeding the permitted parameters.
6. Product determined to be an unofficial Gigabyte product.
Chapter 1 Hardware Installation

GA-N680SLI-DQ6 Motherboard - 10 -
English
1-2 Feature Summary
CPU LGA775 for Intel®CoreTM 2 Extreme quad-core / CoreTM 2 Extreme dual-core /
CoreTM 2 Quad / CoreTM 2 Duo / Pentium®processor Extreme Edition /
Pentium®D / Pentium®4 / Celeron®D
L2 cache varies with CPU
Front Side Bus Supports 1333/1066/800/533 MHz FSB
Chipset nVIDIA®nForce 680i SLI
(Northbridge: C55XE, Southbridge: MCP55P)
LAN Onboard Marvell 88E8052/88E8056 chip (10/100/1000 Mbit)
2 Onboard Marvell 88E1116 phy (10/100/1000 Mbit)
Audio Onboard Realtek ALC888 DD chip
Supports High Definition Audio
Supports 2 / 4 / 6 / 8 channel audio
Supports DTS (dts NEO : PC) function
Supports Dolby Digital Live
Supports S/PDIF In/Out connection
Supports CD In connection
IEEE 1394 Onboard T.I. TSB43AB23 chip
3 IEEE 1394a ports
Storage nVIDIA®nForce 680i SLI Southbridge
- 1 FDD connector supported by I/O controller, allowing connection of
1 FDD device
- 1 IDE connector with Ultra DMA-33, ATA-66/100/133 support,
allowing connection of 2 IDE devices
- 6 SATA 3Gb/s connectors (SATAII0, SATAII1, SATAII2, SATAII3, SATAII4,
SATAII5), allowing connection of 6 SATA 3Gb/s devices
- Supports data RAID 0, RAID 1, RAID 0+1, RAID 5 and JBOD for
Serial ATA
GIGABYTE SATA2 x 2 Controller
- 4 SATA 3Gb/s connectors (GSATAII1-0, GSATAII1-1, GSATAII2-0,
GSATAII2-1), allowing connection of 4 SATA 3Gb/s devices
- Supports data RAID 0, RAID 1 and JBOD for Serial ATA
O.S Support Microsoft Windows 2000/XP
Memory 4 DDRII DIMM memory slots (supports up to 8 GB memory)
Supports dual channel DDRII 800/667/533 unbuffered DIMMs (Note 1)
Supports 1.8V DDRII DIMMs
Supports ECC type DRAM
Expanstion Slots 2 PCI Express x16 slots
1 PCI Express x8 slot
1 PCI Express x1 slot
3 PCI slots

Hardware Installation- 11 -
English
Internal Connectors 1 24-pin ATX power connector
1 8-pin ATX 12V power connector
1 4-pin PCIe 12V power connector
1 floppy connector
1 IDE connector
10 SATA 3Gb/s connectors
1 CPU fan connector
1 system fan connector
1 power fan connector
1 North Bridge fan connector
1 front panel connector
1 front audio connector
1 CD In connector
1 S/PDIF In connector
3 USB 2.0/1.1 connectors for additional 6 ports by cables
2 IEEE 1394a connectors for additional 2 ports by cables
1 TPM connector
1 LPT connector
1 power LED connector
1 Chassis Intrusion connector
Rear Panel I/O 1 PS/2 keyboard port
1 PS/2 mouse port
1 serial port
1 IEEE 1394a port
1 S/PDIF out port (optical)
4 RJ-45 port
4 USB 2.0/1.1 ports
6 audio jacks (Line In / Line Out / MIC In / Surround Speaker Out (Rear
Speaker Out) / Center/Subwoofer Speaker Out / Side Speaker Out)
I/O Control IT8718 chip
Hardware Monitor System voltage detection
CPU / System temperature detection
CPU / System / Power fan speed detection
CPU warning temperature
CPU / System / Power fan failure warning
CPU / System smart fan control
BIOS 2 4 Mbit flash ROM
Use of licensed AWARD BIOS
Supports Dual BIOS
PnP 1.0a, DMI 2.0, SM BIOS 2.3, ACPI 1.0b

GA-N680SLI-DQ6 Motherboard - 12 -
English
(Note 1) To use a DDR II 800/667 memory module on the motherboard, you must install a 1333/1066/
800 MHz FSB processor.
(Note 2) EasyTune functions may vary depending on different motherboards.
(Note 3) The adjustable range is dependent on CPUs.
Additional Features Supports @BIOS
Supports Download Center
Supports Q-Flash
Supports EasyTune(Note 2)
Supports Xpress Install
Supports Xpress Recovery2
Supports Xpress BIOS Rescue
Bundle Software Norton Internet Security (OEM revision)
Overclocking Over Voltage via BIOS (CPU, DDRII, NB/PCIE, SB/PCIE, FSB,
HT-Link, SB Standby)
- CPU Voltage :
Adjustable CPU voltage at 0.025V (Note 3)
- DDRII Voltage :
Adjustable DDRII voltage at 0.025V
(Adjustable range from 0.025V to 0.775V)
- NB/PCIE Voltage :
Adjustable PCIe voltage at 0.05V
(Adjustable range from 0.05V to 0.20V)
- SB/PCIE Voltage :
Adjustable PCIe voltage at 0.05V
(Adjustable range from 0.05V to 0.55V)
- FSB Voltage :
Adjustable FSB voltage at 0.05V
(Adjustable range from 0.05V to 0.35V)
- HT-Link Voltage :
Adjustable HT-Link voltage at 0.05V
(Adjustable range from 0.05V to 0.35V)
- SB Standby Voltage :
Adjustable SB Standby voltage at 0.10V
(Adjustable range from 0.10V to 0.20V)
Over Clock via BIOS (CPU, DDRII, PCIE)
- PCI Express x16 Clock:
Allows 1 MHz increment from 100 MHz to 150 MHz
- PCI Express x8 Clock:
Allows 1 MHz increment from 100 MHz to 150 MHz
- Adjustable CPU, DDRII frequencies
Form Factor ATX form factor; 30.5cm x 24.4cm

Hardware Installation- 13 -
English
1-3 Installation of the CPU and CPU Cooler
1-3-1 Installation of the CPU
Fig. 1
Gently lift the metal
lever located on the
CPU socket to the
upright position.
Metal Lever Fig. 2
Remove the plastic
covering on the CPU
socket.
Fig. 3
Notice the small gold
colored triangle located
on the edge of the CPU
socket. Align the
indented corner of the
Fig. 4
Once the CPU is
properly inserted,
please replace the
load plate and push the
metal lever back into
its original position.
CPU with the triangle and gently insert the CPU into
position. (Grasping the CPU firmly between your
thumb and forefinger, carefully place it into the socket
in a straight and downwards motion. Avoid twisting or
bending motions that might cause damage to the CPU
during installation.)
Before installing the CPU, please comply with the following conditions:
1. Please make sure that the motherboard supports the CPU.
2. Please take note of the one indented corner of the CPU. If you install the CPU in the
wrong direction, the CPU will not insert properly. If this occurs, please change the
insert direction of the CPU.
3. Please add an even layer of heat sink paste between the CPU and CPU cooler.
4. Please make sure the CPU cooler is installed on the CPU prior to system use,
otherwise overheating and permanent damage of the CPU may occur.
5. Please set the CPU host frequency in accordance with the processor specifications. It
is not recommended that the system bus frequency be set beyond hardware specifica-
tions since it does not meet the required standards for the peripherals. If you wish to set
the frequency beyond the proper specifications, please do so according to your hard-
ware specifications including the CPU, graphics card, memory, hard drive, etc.
HT functionality requirement content :
Enabling the functionality of Hyper-Threading Technology for your computer system requires
all of the following platform components:
- CPU: An Intel®Pentium 4 Processor with HT Technology
- Chipset: An Intel®Chipset that supports HT Technology
- BIOS: A BIOS that supports HT Technology and has it enabled
- OS: An operation system that has optimizations for HT Technology

GA-N680SLI-DQ6 Motherboard - 14 -
English
1-3-2 Installation of the CPU Cooler
The CPU cooler may adhere to the CPU as a result of hardening of the heat paste. To prevent
such an occurrence, it is suggested that either thermal tape rather than heat paste be used for
heat dissipation or using extreme care when removing the CPU cooler.
Fig. 6
Finally, please attach the power connector of the
CPU cooler to the CPU fan header located on the
motherboard.
Fig. 3
Place the CPU cooler atop the CPU and make
sure the push pins aim to the pin hole on the
motherboard.Pressing down the push pins
diagonally.
Fig. 4
Please make sure the Male and Female push pin
are joined closely. (for detailed installation
instructions, please refer to the CPU cooler instal-
lation section of the user manual)
Fig. 5
Please check the back of motherboard after
installing. If the push pin is inserted as the picture,
the installation is complete.
Fig.1
Please apply an even layer of CPU cooler paste
on the surface of the installed CPU.
Fig. 2
(Turning the push pin along the direction of arrow is to
remove the CPU cooler, on the contrary, is to install.)
Please note the direction of arrow sign on the male
push pin doesn't face inwards before installation. (This
instruction is only for Intel boxed fan)
Male Push Pin
Female Push Pin
The top of Female Push Pin

Hardware Installation- 15 -
English
The motherboard supports DDRII memory modules, whereby BIOS will automatically detect memory
capacity and specifications. Memory modules are designed so that they can be inserted only in one direction.
The memory capacity used can differ with each slot.
Before installing the memory modules, please comply with the following conditions:
1. Please make sure that the memory used is supported by the motherboard. It is
recommended that memory of similar capacity, specifications and brand be used.
2. Before installing or removing memory modules, please make sure that the computer
power is switched off to prevent hardware damage.
3. Memory modules have a foolproof insertion design. A memory module can be installed
in only one direction. If you are unable to insert the module, please switch the direction.
1-4 Installation of Memory
Notch
Fig.1
The DIMM socket has a notch, so the DIMM memory
module can only fit in one direction. Insert the DIMM memory
module vertically into the DIMM socket. Then push it down.
Fig.2
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.
DDRII

GA-N680SLI-DQ6 Motherboard - 16 -
English
Dual Channel Memory Configuration
The GA-N680SLI-DQ6 supports the Dual Channel Technology. After operat-
ing the Dual Channel Technology, the bandwidth of memory bus will double.
The GA-N680SLI-DQ6 includes 4 DIMM sockets, and each Channel has two DIMM sockets as
following:
Channel 0 : DDRII1, DDRII2
Channel 1 : DDRII3, DDRII4
If you want to operate the Dual Channel Technology, please note the following explanations due to the
limitation of chipset specifications.
1. Dual Channel mode will not be enabled if only one DDRII memory module is installed.
2. To enable Dual Channel mode with two or four memory modules (it is recommended to use
memory modules of identical brand, size, chips, and speed), you must install them into DIMM
sockets of the same color.
The following is a Dual Channel Memory configuration table:
(DS: Double Side, SS: Single Side, "--": Empty)
2 memory modules
4 memory modules
DDRII1 DDRII2 DDRII3 DDRII4
DS/SS -- DS/SS --
-- DS/SS -- DS/SS
DS/SS DS/SS DS/SS DS/SS
If two memory modules are to be used to achieve Dual Channel mode, we recommend
installing them in DDRII1 and DDRII3 DIMM sockets.

Hardware Installation- 17 -
English
1-5 Installation of Expansion Cards
To install your expansion card, follow the steps below.
1. Disconnect your system from its power source and read the expansion card's installation manual
before installing the expansion card in the computer.
2. Remove your computer's chassis cover, screws and slot bracket from the computer. Ground
yourself to prevent damage to your computer resulting from Electrostatic discharge (ESD).
3. Press the expansion card firmly into the expansion slot in the motherboard.
4. Make sure the metal contacts on the card are fully 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, configure required settings for the expansion card in system
BIOS Setup.
8. Install related driver in the operating system.
For example: Installing a PCI Express x16 VGA card:
The motherboard includes a PCIE_12V power connector, which provides
extra power to the onboard PCI Express x16 slot. When installing two
graphics cards, please connect the power cable from the power supply to
this connector.
To remove the VGA card:
When you try to uninstall the VGA card on the PCI Express x16 slot, you
can press the latch as the picture to the left shows to release the card.
To install the VGA card:
Please align the VGA card with the PCI Ex-
press x16 slot and press down on the card.
Make sure the VGA card is locked by the
small white drawable bar.

GA-N680SLI-DQ6 Motherboard - 18 -
English
1-6 Connecting the e-SATA Cable Kit
The e-SATA cable kit includes one SATA bracket,
one SATA signal cable, and one SATA power cable.
Step 1:
Locate one free PCI
slot and secure the
SATA bracket to the
chassis back panel
with a screw.
Follow the steps below to install the e-SATA cable kit:
Step 2:
Connect the SATA
cable from the
bracket to the SATA
port on your
motherboard.
Step 3:
Connect the power
cable from the
bracket to the power
supply.
Step 4:
Plug one end of the
SATA signal cable into
the e-SATA connec-
tor on the bracket.
Then attach the SATA
power cable to the
power connector on
the bracket.
The e-SATA cable kit allows you to connect external SATA device(s) to your system by expanding the
internal SATA port(s) to the chassis back panel.
•Turn off your system and the power switch on the power supply before installing or
removing the SATA bracket and SATA power cable to prevent damage to hardware.
•Insert the SATA signal cable and SATA power cable securely into the corresponding connec-
tors when installing.
Step 5:
Connect the other ends of the SATA signal cable and SATA power cable
to your SATA devices. For SATA device in external enclosure, you only
need to connect the SATA signal cable. Before connecting the SATA signal
cable, make sure to turn off the power of the external enclosure.
SATA Bracket
e-SATA
Connector Power
Connector e-SATA
Connector
SATA Signal Cable SATA Power Cable

Hardware Installation- 19 -
English
1-7 Setup of SLI (Scalable Link Interface) Configuration
nVIDIA®nForce 680i SLI offers blistering graphics performance with the ability to bridge two NVIDIA SLI-
ready PCI ExpressTM graphics cards! The SLI design takes advantage of the increased bandwidth of
the PCI ExpressTM bus architecture, features hardware and software innovations within NVIDIA GPU
(graphics processing unit) and the nVIDIA®nForce 680i SLI chipset. Together, the NVIDIA SLI technolo-
gies work seamlessly to allow two graphics cards to operate in parallel and share the work and deliver
heart-pounding PC performance. This section introduces steps to configure an SLI system on the
GA-N680SLI-DQ6 motherboard.
The exact power requirements will depend on your overall system configurations. You need
a power supply that can provide sufficient and stable power to your system and the two SLI
graphics cards. Please refer to the table below to check recommended power for different
systems.
Before you begin--
If you wish to enable the SLI function, install two SLI-ready graphics cards into the PCIE_16_1 and
PCIE_16_2 slots. (It is recommended to use graphics cards of identical brand and chips. For example:
GIGABYTE GV-NX76T256D-RH).
If you want to set up a single graphics card system, we recommend installing the graphics card on the
PCIE_16_1 slot to ensure better display performance.
System configuration System A System B
Processors Intel QX6700 Intel X6800
PCIE x16 video cards 2±iNVIDIA 6800 Ultra cards 2±iNVIDIA 6600 GT cards
DDR memory modules 4 DIMMs 2 DIMMs
Hard drives/Optical drives 4 hard drives + 2 optical drives 1 hard drives + 1 optical drives
Expansion cards 1 PCIE x1 card + 2 PCI cards 0
USB devices 10 4
IEEE 1394 devices 1 0
Required +12V current 25A or above 20A or above
Power supply requirement 500W or above 350W or above

GA-N680SLI-DQ6 Motherboard - 20 -
English
place this part on the top of
the bridge connector.
retention bracket
Connecting Two Graphics Cards:
Step 1: Observe the steps in "1-5 Installation of Expansion Cards"
and install two SLI-ready graphics cards of the same
model to the PCIE_16_1 and PCIE_16_2 slots.
Step 3: In order to securely fix the bridge connector beween the
two cards, you must install the retention bracket in-
cluded with the motherboard and secure the retention
bracket to the chassis back panel with a screw.
Gold edge connector on the top
of graphics card
Female slots on the bridge
connector
Step 2: Insert the SLI bridge (the GC-SLICON6) to the SLI gold
edge connector on top of both cards. Make sure the two
mini female slots on the bridge connector securely fit
onto the SLI gold edge connetors of both cards.
Step 4: Plug the display cable into the graphics card which on
the PCIE_16_1 slot(Note).
(Note) If you want to enable the SLI function, you must plug the display cable into the graphics card
which on the PCIE_16_1 slot.