Zotac nForce 750a User Manual
1
Federal Communications Commission (FCC) Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in accordance with instructions
contained in this manual, may cause harmful interference to radio and television communications.
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- REORIENT OR RELOCATE THE RECEIVING ANTENNA
- INCREASE THE SEPARATION BETWEEN THE EQUIPMENT AND THE RECEIVER
- CONNECT THE EQUIPMENT INTO AN OUTLET ON A CIRCUIT DIFFERENT FROM
THAT OF THE RECEIVER
- CONSULT THE DEALER OR AN EXPERIENCED AUDIO/TELEVISION TECHNICIAN
NOTE:
Connecting this device to peripheral devices that do not comply with Class B requirements, or
using an unshielded peripheral data cable, could also result in harmful interference to radio or
television reception.
The user is cautioned that any changes or modications not expressly approved by the party
responsible for compliance could void the user’s authority to operate this equipment.
To ensure that the use of this product does not contribute to interference, it is necessary to use
shielded I/O cables.
Copyright
This manual is copyrighted with all rights reserved. No portion of this manual may be copied or
reproduced by any means.
While every precaution has been taken in the preparation of this manual, no responsibility for
errors or omissions is assumed. Neither is any liability assumed for damages resulting from the
use of the information contained herein.
Trademarks
All brand names, logos and registered trademarks mentioned are property of their respective
owners.
Electronic Emission Notices
WARNING!
2
NForce 750a series Motherboard
Table of Contents
Motherboard Specications ------------------------------------------------------------------- 4
Motherboard Layout------------------------------------------------------------------------------ 6
Hardware Installation ---------------------------------------------------------------------------- 8
Safety Instructions ----------------------------------------------------------------------------- 8
Preparing The Motherboard ------------------------------------------------------------------- 8
Installing the CPU ------------------------------------------------------------------------------ 8
Installing the CPU Fan ------------------------------------------------------------------------ 10
Installing Memory DIMMs -------------------------------------------------------------------- 10
Installing the Motherboard ------------------------------------------------------------------- 11
Installing the I/O Shield ----------------------------------------------------------------------- 11
Connecting Cables And Setting Switches ------------------------------------------------ 12
24-pin ATX Power (PW1) --------------------------------------------------------------------- 13
8-pin ATX 12V Power (PW2) ---------------------------------------------------------------- 14
AUX Power (optional) ------------------------------------------------------------------------- 14
Speaker Connector-SPK --------------------------------------------------------------------- 15
Serial Port connector-COM ----------------------------------------------------------------- 15
Case Open Detect Connector J1H4 ------------------------------------------------------ 15
IEEE1394 Connector - CN4(optional) ---------------------------------------------------- 16
Connecting Serial ATA Cables -------------------------------------------------------------- 17
Connecting Internal Headers ---------------------------------------------------------------- 18
Front Panel Header ---------------------------------------------------------------------------- 18
USB Headers------------------------------------------------------------------------------------ 19
FP Audio Connector --------------------------------------------------------------------------- 20
Fan Connections ------------------------------------------------------------------------------- 21
Expansion Slots -------------------------------------------------------------------------------- 22
PCI Slots ----------------------------------------------------------------------------------------- 22
PCI Express x16 Slots ------------------------------------------------------------------------ 22
PCI Express x1 Slots -------------------------------------------------------------------------- 22
Jumper Settings -------------------------------------------------------------------------------- 23
Hoppy Disk Drive Connector-FDD---------------------------------------------------------- 24
Hard Disk Connector-IDE--------------------------------------------------------------------- 24
Conguring the BIOS ---------------------------------------------------------------------------- 25
About the Setup Utility------------------------------------------------------------------------- 25
3
Main Menu ------------------------------------------------------------------------------------------- 26
Flash Update Procedure ----------------------------------------------------------------------- 30
Installing Drivers And Software -------------------------------------------------------------- 31
HDMI Setup ----------------------------------------------------------------------------------------- 32
Realtek HD Audio Driver Setup -------------------------------------------------------------- 34
Getting Started ---------------------------------------------------------------------------------- 34
Sound Effect ------------------------------------------------------------------------------------- 34
Environment Simulation ---------------------------------------------------------------------- 34
Equalizer Selection --------------------------------------------------------------------------- 35
Frequently Used Equalizer Setting -------------------------------------------------------- 35
Karaoke Mode ---------------------------------------------------------------------------------- 35
Mixer----------------------------------------------------------------------------------------------- 36
Playback control --------------------------------------------------------------------------- 36
Recording control -------------------------------------------------------------------------- 37
Audio I/O ------------------------------------------------------------------------------------- 38
Speaker Conguration ------------------------------------------------------------------- 39
Global Connector Settings -------------------------------------------------------------- 40
S/PDIF --------------------------------------------------------------------------------------- 40
Speaker Calibration ----------------------------------------------------------------------- 41
Microphone---------------------------------------------------------------------------------- 42
Noise Suppression ------------------------------------------------------------------------ 42
Beam Forming ----------------------------------------------------------------------------- 42
Acoustic Echo Cancellation ------------------------------------------------------------- 42
Audio Demo --------------------------------------------------------------------------------- 43
Information --------------------------------------------------------------------------------- 43
Setup of SLI Conguration--------------------------------------------------------------------- 44
SATA RAID User Manual ------------------------------------------------------------------------ 46
Setting up the BIOS --------------------------------------------------------------------------- 46
Entering the RAID BIOS Setup ------------------------------------------------------------- 48
Installing the RAID Drives -------------------------------------------------------------------- 51
Table of Contents
4
NForce 750a series Motherboard
Motherboard Specications
q Chipset
NVIDIA MCP72 Series
q Size
ATX form factor of 12 inch x 8.6 inch
q Microprocessor support
Phenom/Athlon/Sempron with socket AM2/AM2+
q Operating systems:
Supports Windows XP 32bit/64bit and Windows Vista 32bit/64bit
q System Memory support
Supports DDRII533/667/800/1066. Supports up to 8GBs DDRII
memorys with 4 slots and 4GBs with 2 slots.
q USB 2.0 Ports
v Supports hot plug and play
v Twelve USB 2.0 ports (four rear panel ports, eight from onboard USB headers)
v Supports wake-up from S1
v Supports USB 2.0 protocol up to 480 Mbps transmission rate
q Onboard Serial ATA II
v Independent DMA operation on six ports (optional).
v Data transfer rates of 300Mb/s.
q Onboard LAN
v LAN interface built-in onboard
v Supports 10/100/1000Mbps Ethernet, 1000Mbps Ethernet is optional.
q Onboard Audio(optional)
v Azalia High-Denition audio
v Supports 6-channel/8-channel audio
v Supports Jack-Sensing function
q PCI Express Support
v Supports PCI Express 2.0
v Supports two PCIEx16 slot with 8-1an bandwidth and two PCIEx1
slot(optional)
v Low power consumption and power management features
v Supports 8+8 SLI technology
q Green Function
5
v RTC timer to power-on the system
v AC power failure recovery
q Onboard IEEE1394(optional)
v One 1394 port on back panel,one on pin header
v Compliant with IEEE1394 OHCI specications v1.0 and v1.1
v Integrated 400Mb 2-port PHY
q Onboard display Support
v Integrates 750a SLI engine core.
v Support Hybrid SLI to increase graphics performance with GeForce® Boost
and provide intelligent power management with HybridPower
TM
v DVI/HDMI output support(optional)
q Expansion Slots
v Two PCI Express x1 slot(optional)
v Two PCI Express x16 Graphics slot
v Two PCI bus master slots - ver.2.3 compliant
Before You Begin
6
NForce 750a series Motherboard
Motherboard Layout
Figure 1 shows the motherboard and Figures 2 shows the back panel connectors.
1. Front Panel Connector 12. PCI Express x16 slots 23. SYS fan Connectors
2. USB Connectors 13. AUX power Connector (optional) 24. SATA connectors
3. Speaker Connector 14. 8-pin Power connector
4. IEEE1394 Connector(optional) 15. Backpanel connectors
5. Clear CMOS jumper 16. DDRII DIMM Sockets(optional)
6. J1H4-case open detection connector(optional) 17. 24-pin ATX power connector
7. COM connector(optional) 18. CPU Socket
8. Floppy Disk Drive Connector 19. IDE Connector
9. PCI Slots 20. CPU fan Connector
10. Front Panel audio Connector 21. Chip fan Connector
11. PCI Express x1 slot(optional) 22. Chipset
Figure 1. Board Layout
Chi pse t
SPE AKE
R
FP
1
CCM OS
CO
M
PS2
USB /LA
N
PW
1
120 240
121
120 240
121
120 240
121
120 240
121
SA
TA
4
SA
TA
5
IDE
SA
TA
6
SA
TA
1
SA
TA
3
SA
TA
2
US
B 3
-
US
B 4
-
US
B 1
-
US
B 2
-
139 4
CPU S oc ket
VGA DVI/
SPD IF OU T
HDM I
CPU _FAN
J
1H4
CHI
P F
AN
DDR II
1
-
DDR II
2
-
DDR II
3
-
DDR II
4
-
SYS F AN 1-
SY
S F
AN 2
-
FDD
PC
I
PC
I
USB 1 394/
Aud io
PW2
AUX P OWE R_
PCI
Exp res
s x
1
PCI
Exp res
s x
1
FP
S1
_
10
11
16 17
18
19
20 23
21 22
2
3
4
5
6
7
8
24
912
13
14
15
PCI
Exp res s
x16
slo t
1
-
PCI
Exp res s
x16
slo t
2
-
7
1. PS/2 Mouse Port 4. HDMI Port(optional)
2. PS/2 Keyboard Port 5. VGA Port
3. SPDIF OUT 6. USB Port
7. Port 2-Channel 4-Channel 6-Channel 8-Channel
Blue Line-In Line-In Line-In Line-In
Green Line-Out Front Speaker Out Front Speaker Out Front Speaker Out
Pink Mic In Mic In Mic In Mic In
Orange -- -- Center/Subwoofer Center/Subwoofer
Black -- Rear Speaker Out Rear Speaker Out Rear Speaker Out
Grey -- -- -- Side Speaker Out
8. DVI Out Port(optional)
9. IEEE1394 Port(optional)
10. Lan Port with LEDs to indicate status.
· Yellow/Light Up/Blink = 10 Mbps/Link/Activity
· Yellow and Green/Light Up/Blink = 100 Mbps/Link/Activity
· Orange and Red /Light UP/Blink = 1000 Mbps/Link/Activity
11. Port 2-Channel 4-Channel 6-Channe
Blue Line-In Rear Speaker Out Rear Speaker Out
Green Line-Out Front Speaker Out Front Speaker Out
Pink Mic In Mic In Center/Subwoofer
Figure 2: Backpanel connectors
With 8-Channel audio output
With 6-Channel audio output
Rear Panel
2
3
4 5 6 7
8
9
10
6
11
8
NForce 750a series Motherboard
Hardware Installation
This section will guide you through the installation of the motherboard. The topics
covered in this section are:
q Preparing the motherboard
v Installing the CPU
v Installing the CPU fan
v Installing the memory
q Installing the motherboard
q Connecting cables and setting switches
Safety Instructions
To reduce the risk of re, electric shock, and injury, always follow basic safety precations.
Remember to remove power from your computer by disconnecting the AC main source
before removing or installing any equipment from/to the computer chassis.
Preparing the Motherboard
The motherboard shipped in the box does not contain a CPU and memory. You need
to purchase these to complete this installation.
Installing the CPU
Be very careful when handling the CPU. Make sure not to bend or break any pins on
the back. Hold the processor only by the edges and do not touch the bottom of the
processor.
Use the following procedure to install the CPU onto the motherboard.
9
Hardware Installation
1. Please turn off the power and unplug the power
cord before installing the CPU. Pull the lever up and
away from the socket until it is at a 90 degree angle
to the motherboard.
2. Look for the gold arrow on the CPU. The gold arrow
should point away from the lever pivot. The CPU can
only sit properly in the socket in the correct orientation.
3. If the CPU is correctly seated, the pins should be
completely embedded in the socket and can not be
seen (Please note that any deviation from the correct
installation procedures may cause permanent damage
to your motherboard).
4. Press the CPU down rmly into the socket and
close the lever. As the CPU is likely to move while
the lever is being closed, always close the lever with
your ngers pressing tightly on top of the CPU to
make sure the CPU is properly and completely seated
in the socket.
5. When you are installing the CPU, make sure the
CPU has a heat sink and a cooling fan attached on
the top to prevent overheating. If you do not have the
heat sink and cooling fan, contact your dealer to
purchase and install them before turning on the
computer.
10
NForce 750a series Motherboard
Installing the CPU Fan
There are many different fan types that can be used with this motherboard. Follow the
instruction that came with your fan assembly. Be sure that the fan orientation is correct
for your chassis type and your fan assembly.
Installing Memory DIMMs
Your new motherboard has four 1.8V 240-pin slots for DDR2 memory DDRII 1 and
DDRII 2 are optional. These slots support 256 Mb, 512 Mb, 1Gb and 2Gb DDR2.
There must be at least one memory bank populated to ensure normal operation. Use
the following the recommendations for installing memory. (See Figure 1 on page 6 for
the location of the memory slots.)
q One DIMM: You can install the DIMM into any slot.
q Two DIMMs: Install into slots 1 and 2,or 3 and 4. The idea is to run on dual
channel mode.
q Four DIMMs: Install into slots 1,2,3 and 4. The idea is to run on dual channel
mode.
Use the following procedure to install memory DIMMs into the slots on the
motherboard. Note that there is only one gap near the center of the DIMM slot. This
slot matches the slot on the memory DIMM to ensure the component is installed
properly.
1. Unlock a DIMM slot by pressing the module clips outward.
DDRII-1
DDRII-2
DDRII-3
DDRII-4
11
2. Align the memory module to the DIMM slot, and insert the module vertically into
the DIMM slot. The plastic clips at both sides of the DIMM slot automatically lock
the DIMM into the connector.
Installing the Motherboard
The sequence of installing the motherboard into the chassis depends on the chassis
you are using and if you are replacing an existing motherboard or working with an
empty chassis. Determine if it would be easier to make all the connections prior to this
step or to secure the motherboard and then make all the connections. It is normally
easier to secure the motherboard rst.
Use the following procedure to install the I/O shield and secure the motherboard into
the chassis.
Note: Be sure that the CPU fan assembly has enough clearance for the
chassis covers to lock into place and for the expansion cards. Also
make sure the CPU Fan assembly is aligned with the vents on the
covers.
Installing the I/O Shield
The motherboard kit comes with an I/O shield that is used to block radio frequency
transmissions, protects internal components from dust and foreign objects, and
promotes correct airow within the chassis.
Before installing the motherboard, install the I/O shield from the inside of the chassis.
Press the I/O shield into place and make sure it ts securely. If the I/O shield does
not t into the chassis, you would need to obtain the proper size from the chassis
supplier.
Hardware Installation
12
NForce 750a series Motherboard
Connecting Cables and Setting Switches
This section takes you through all the connections and switch settings necessary on
the motherboard.
See Figure 1 to locate the connectors and jumpers referenced in the following
procedure.
13
24-pin ATX Power (PW1)
PW1 is the main power supply connector located along the edge of the board next to
the DIMM slots. Make sure that the power supply cable and pins are properly aligned
with the connector on the motherboard. Firmly plug the power supply cable into the
connector and make sure it is secure.
Table 1. PW1 Pin Assignments
Connector Pin Signal Pin Signal
1 +3.3V 13 +3.3V
2 +3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS_ON
5 GND 17 GND
6 +5V 18 GND
7 GND 19 GND
8 PWROK 20 -5V
9 +5V_AUX 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
12 +3.3V 24 GND
1
12
1324
Hardware Installation
14
NForce 750a series Motherboard
8-pin ATX 12V Power (PW2)
PW2, the 8-pin ATX 12V power connection, is used to provide power to the CPU. Align
the pins to the connector and press rmly until seated.
PIN Assignment
1 GND
2 GND
3 GND
4 GND
5 +12V
6 +12V
7 +12V
8 +12V
PW2 - Pin Denition
AUX Power(Optional)
PIN Assignment
1 +12V
2 GND
3 GND
4 +5V
AUX Power - Pin Denition
14
1
15
SPK
1
PIN Assignment
1 VCC
2 NC
3 NC
4 SPK-
SPK - Pin Denition
Speaker Connector - SPK
Serial Port Connector - COM
1
2
9
10
COM
Case Open Detect Connector - J1H4
COM - Pin Denition
PIN Assignment
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
10 NC
J1H4
1
16
NForce 750a series Motherboard
IEEE 1394 Connector: CN4 (optional)
The motherboard provides one 1394 pin headers that allow you to connect IEEE 1394
ports. Certainly, you can connect to real panel directly.
1
2
9
10
CN4- Pin Denition
PIN Assignment
1 TPA+
2 TPA-
3 Ground
4 Ground
5 TPB+
6 TPB-
7 Cable power
8 Cable power
9 Key (no pin)
10 Ground
IEEE 1394 Cable (optional)
Hardware Installation
17
PIN SIGNAL
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
SATA-1/SATA-2/SATA3/SATA4/SATA5/SATA6 - Pin Denition
Connecting Serial ATA Cables(SATA-1~SATA-6 Optional)
The Serial ATA II connector is used to connect the Serial ATA II device to the motherboard.
These connectors support the thin Serial ATA II cables for primary storage devices.
The current Serial ATA II interface allows up to 3Gb/s data transfer rate. There are six
serial ATA connectors on the motherboard that support AHCI and RAID congurations
.(SATA5,&SATA6 does not support IDE mode.)
SATA-6
SATA-5
SATA-4
1
1
1
SATA-1
1
SATA-2
1
SATA-2
1
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