ASROCK 775i945GZ User manual

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Copyright Notice:Copyright Notice:
Copyright Notice:Copyright Notice:
Copyright Notice:
No part of this installation guide may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Inc.
Products and corporate names appearing in this guide may or may not be registered
trademarks or copyrights of their respective companies, and are used only for
identification or explanation and to the owners’ benefit, without intent to infringe.
Disclaimer:Disclaimer:
Disclaimer:Disclaimer:
Disclaimer:
Specifications and information contained in this guide are furnished for informational
use only and subject to change without notice, and should not be constructed as a
commitment by ASRock. ASRock assumes no responsibility for any errors or
omissions that may appear in this guide.
With respect to the contents of this guide, ASRock does not provide warranty of any
kind, either expressed or implied, including but not limited to the implied warranties or
conditions of merchantability or fitness for a particular purpose.
In no event shall ASRock, its directors, officers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
loss of profits, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from any
defect or error in the guide or product.
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 interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
ASRock Website: http://www.asrock.com
Published July 2006
Copyright©2006 ASRock INC. All rights reserved.

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Motherboard LMotherboard L
Motherboard LMotherboard L
Motherboard Layoutayout
ayoutayout
ayout
1 PS2_USB_PWR1 Jumper 15 Chassis Fan Connector (CHA_FAN1)
2 ATX 12V Connector (ATX12V1) 16 System Panel Header (PANEL1)
3 775-Pin CPU Socket 17 BIOS FWH Chip
4 North Bridge Controller 18 Primary SATAII Connector (SATAII_1; Red)
5 CPU Fan Connector (CPU_FAN1) 19 South Bridge Controller
6 2 x 240-pin DDRII DIMM Slots 20 USB 2.0 Header (USB67, Blue)
(Dual Channel: DDRII_1, DDRII_2; Yellow) 21 USB 2.0 Header (USB45, Blue)
7 Infrared Module Header (IR1) 22 Floppy Connector (FLOPPY1)
8 IDE1 Connector (IDE1, Blue) 23 HDMR Slot (HDMR1)
9 Serial Port Connector (COM1) 24 Front Panel Audio Header (HD_AUDIO1)
10 Clear CMOS Jumper (CLRCMOS1) 25 Internal Audio Connector: CD1 (Black)
11 Third SATAII Connector (SATAII_3; Orange) 26 PCI Slots (PCI1- 3)
12 Fourth SATAII Connector (SATAII_4; Orange) 27 AGI Express Slot (PCI Express x4)
13 Secondary SATAII Connector (SATAII_2; Red) 28 ATX Power Connector (ATXPWR1)
14 Chassis Speaker Header (SPEAKER 1)

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HD 8CH I/OHD 8CH I/O
HD 8CH I/OHD 8CH I/O
HD 8CH I/O
1 Parallel Port 8 Microphone (Pink)
2 RJ-45 Port 9 USB 2.0 Ports (USB01)
3 Side Speaker (Gray) 10 USB 2.0 Ports (USB23)
4 Rear Speaker (Black) 11 VGAPort
5 Central / Bass (Orange) 12 PS/2 Keyboard Port (Purple)
6 Line In (Light Blue) 13 PS/2 Mouse Port (Green)
*7 Front Speaker (Lime)
* If you use 2-channel speaker, please connect the speaker’s plug into “Front Speaker Jack”. See
the table below for connection details in accordance with the type of speaker you use.
TABLE for Audio Output Connection
Audio Output Channels Front Speaker Rear Speaker Central / Bass Side Speaker
(No. 7) (No. 4) (No. 5) (No. 3)
2 V -- -- --
4VV----
6 VVV--
8 VVVV
* To enable Multi-Streaming function, you need to connect a front panel audio cable to the front
panel audio header. After restarting your computer, you will find “Mixer” tool on your system.
Please select “Mixer ToolBox” , click “Enable playback multi-streaming”, and click
“ok”. Choose “2CH”, “4CH”, “6CH”, or “8CH” and then you are allowed to select “Realtek HDA
Primary output” to use Rear Speaker, Central/Bass, and Front Speaker, or select “Realtek HDA
Audio 2nd output” to use front panel audio.

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1. Introduction1. Introduction
1. Introduction1. Introduction
1. Introduction
Thank you for purchasing ASRock 775i945GZ motherboard, a reliable motherboard
produced under ASRock’s consistently stringent quality control. It delivers excellent
performance with robust design conforming to ASRock’s commitment to quality and
endurance.
This Quick Installation Guide contains introduction of the motherboard and step-by-
step installation guide. More detailed information of the motherboard can be found in
the user manual presented in the Support CD.
Because the motherboard specifications and the BIOS software might
be updated, the content of this manual will be subject to change
without notice. In case any modifications of this manual occur, the
updated version will be available on ASRock website without further
notice. You may find the latest VGA cards and CPU support lists on
ASRock website as well.
ASRock website http://www.asrock.com
1.1 Package Contents1.1 Package Contents
1.1 Package Contents1.1 Package Contents
1.1 Package Contents
ASRock 775i945GZ Motherboard
(Micro ATX Form Factor: 9.6-in x 8.6-in, 24.4 cm x 21.8 cm)
ASRock 775i945GZ Quick Installation Guide
ASRock 775i945GZ Support CD
(including LGA 775 CPU Installation Live Demo)
One 80-conductor Ultra ATA 66/100 IDE Ribbon Cable
One Ribbon Cable for a 3.5-in Floppy Drive
One SerialATA (SATA) Data Cable (Optional)
One SerialATA (SATA) HDD Power Cable (Optional)
One HD 8CH I/O Shield
One COM Port Bracket
One HDMR Card (Optional)

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1.21.2
1.21.2
1.2 SpecificationsSpecifications
SpecificationsSpecifications
Specifications
Platform - Micro ATX Form Factor: 9.6-in x 8.6-in, 24.4 cm x 21.8 cm
CPU - LGA775 for Intel®Dual Core Pentium®D/ Pentium®4 / Celeron®
D, supporting CoreTM 2 Duo Desktop (Conroe), Presler and
Cedar Mill processors (in 775-land LGA package)
- FSB 800/533 MHz
- Supports Hyper-Threading Technology (see CAUTION 1)
- Supports Untied Overclocking Technology (see CAUTION 2)
- Supports EM64T CPU
Chipset - Northbridge: Intel®945GZ
- Southbridge: Intel®ICH7
Memory - Dual Channel DDRII Memory Technology (see CAUTION 3)
- 2 xDDRIIDIMM slots
- SupportDDRII533
- Max. capacity: 2GB
Hybrid Booster - CPU Frequency Stepless Control (see CAUTION 4)
- ASRock U-COP (see CAUTION 5)
- Boot Failure Guard (B.F.G.)
Expansion Slot - 3 x PCI slots
- 1 x AGI Express slot (PCI Express x4) (see CAUTION 6)
- 1 x HDMR slot
Graphics - Intel®Graphics Media Accelerator 950
- Pixel Shader 2.0,DirectX 9.0
- Max. shared memory 192MB
Audio - Realtek ALC888 7.1 channel audio CODEC with High
Definition audio
LAN - Realtek PCI LAN 8101L
- Speed: 10/100 Ethernet
- Supports Wake-On-LAN
Rear Panel I/O HD8CHI/O
- 1 x PS/2 Mouse Port
- 1 x PS/2 Keyboard Port
- 1 x VGA Port
- 1 x Parallel Port (ECP/EPP Support)
- 4 x Ready-to-Use USB 2.0 Ports
- 1 x RJ-45 LAN Port
- HDAudio Jack: Side Speaker/Rear Speaker/Central/Bass/
Line in/Front Speaker/Microphone (see CAUTION 7)

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Connector - 4 x SATAII 3.0 Gb/s connectors (No Support for RAID and
“Hot Plug” functions) (see CAUTION 8)
- 1 x ATA100 IDE connector (supports 2 x IDE devices)
- 1 x Floppy connector
- 1 x IR header
- 1 x COM port header
- CPU/Chassis FANconnector
- 20 pin ATX power connector
- 4 pin 12V power connector
- CD in header
- Front panel audio connector
- 2 x USB 2.0 headers (support 4 USB 2.0 ports)
(see CAUTION 9)
BIOS Feature - 4MbAMI BIOS
-AMI Legal BIOS
- Supports “Plug and Play”
-ACPI 1.1 Compliance Wake Up Events
- Supports jumperfree
-AMBIOS 2.3.1 Support
Support CD - Drivers, Utilities, AntiVirus Software (Trial Version)
Hardware - CPU Temperature Sensing
Monitor - Chassis Temperature Sensing
- CPU Fan Tachometer
- Chassis Fan Tachometer
- CPU Quiet Fan
- Voltage Monitoring: +12V, +5V, +3.3V, Vcore
OS - Microsoft® Windows® 2000/XP/XP 64-bit/VistaTM compliant
(see CAUTION 10)
Certifications - FCC, CE, WHQL

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CAUTION!
1. About the setting of “Hyper Threading Technology”, please check page 28
of “User Manual” in the support CD.
2. This motherboard supports Untied Overclocking Technology. Please read
“Untied Overclocking Technology” on page 20 for details.
3. This motherboard supports Dual Channel Memory Technology. Before you
implement Dual Channel Memory Technology, make sure to read the
installation guide of memory modules on page 13 for proper installation.
4. Although this motherboard offers stepless control, it is not recommended
to perform over-clocking. Frequencies other than the recommended CPU
bus frequencies may cause the instability of the system or damage the
CPU.
5. While CPU overheat is detected, the system will automatically shutdown.
Before you resume the system, please check if the CPU fan on the
motherboard functions properly and unplug the power cord, then plug it
back again. To improve heat dissipation, remember to spray thermal
grease between the CPU and the heatsink when you install the PC system.
6. For the information of the compatible PCI Express VGA cards, please
refer to the “Supported PCI Express VGA Card List for AGI Express Slot
(PCI Express x4)” on page 9. For the proper installation of PCI Express
VGAcard, please refer to the installation guide on page 14.
7. For microphone input, this motherboard supports both stereo and mono
modes. For audio output, this motherboard supports 2-channel, 4-channel,
6-channel, and 8-channel modes. Please check the table on page 3 for
proper connection.
8. Before installing SATAII hard disk to SATAII connector, please read the “SATAII
Hard Disk Setup Guide” on page 19 to adjust your SATAII hard disk drive to
SATAII mode. You can also connect SATA hard disk to SATAII connector
directly.
9. Power Management for USB 2.0 works fine under Microsoft®Windows®
VistaTM / XP 64-bit / XP SP1 or SP2 / 2000 SP4.
10. Microsoft®Windows®VistaTM driver is not ready yet. We will update it to our
website in the future. Please visit our website for Microsoft®Windows®VistaTM
driver and related information.
ASRock website http://www.asrock.com

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1.31.3
1.31.3
1.3 Minimum Hardware RMinimum Hardware R
Minimum Hardware RMinimum Hardware R
Minimum Hardware Requirement Tequirement T
equirement Tequirement T
equirement Table for Wable for W
able for Wable for W
able for Windowsindows
indowsindows
indows®®
®®
®
VistaVista
VistaVista
VistaTMTM
TMTM
TM Premium and Basic LogoPremium and Basic Logo
Premium and Basic LogoPremium and Basic Logo
Premium and Basic Logo
For system integrators and users who purchase this motherboard and
plan to submit Windows®VistaTM Premium and Basic logo, please follow the
below table for minimum hardware requirement. Please adopt the CPU,
memory, and VGA that we suggest.
CPU Celeron D 326
Memory 512MB x 2 Dual Channel (Premium)
512MB Single Channel (Basic)
256MB x 2 Dual Channel (Basic)
* If you use onboard VGA with total system memory size 512MB and plan to
submit Windows®VistaTM Basic logo, please adjust the shared memory size of
onboard VGA to 64MB. If you use onboard VGA with total system memory size
above 512MB and plan to submit Windows®VistaTM Premium and Basic logo, the
shared memory size of onboard VGAcan be adjusted up to 128MB.
* If you plan to use external graphics card on this motherboard, please refer to
Premium Discrete requirement at http://www.asrock.com

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1.41.4
1.41.4
1.4 Supported PCI Express VGA Card List for AGISupported PCI Express VGA Card List for AGI
Supported PCI Express VGA Card List for AGISupported PCI Express VGA Card List for AGI
Supported PCI Express VGA Card List for AGI
Express Slot (PCI Express x4)Express Slot (PCI Express x4)
Express Slot (PCI Express x4)Express Slot (PCI Express x4)
Express Slot (PCI Express x4)
(for Windows®2000/XP/XP 64-bit/VistaTM)
Graphics Chip Model Name Chipset Name
Vendor
NVIDIA ASUS EN7600GT/2DHT GeForce 7600GT
ASUSEN7800GTX/2DHTV/256M GeForce 7800GTX
ASUS Extreme N6800GT GeForce 6800GT
Albatron GeForce 7300GS GeForce 7300GS
Albatron PC6600GT GeForce 6600GT
Albatron PC6600LEQ2 GeForce 6600LE
GigabyteGV-NX66T256DE GeForce 6600GT
Inno3D GeFORCE 6600 LE GeForce 6600LE
LEADTEK PX6500 TDH GeForce 6500
LEADTEKPX7300GSTDH GeForce 7300GS
LEADTEK WinFast PX7800 GT TDH GeForce 7800 GT
MSINX6800GS-TD256E GeForce 6800 GS
MSINX7300GS-TD256E GeForce 7300 GS
MSINX7900GTX-T2D512E GeForce 7900 GTX
MSI PCX 5750-TD128E GeForce PCX5750
Sparkle GeFORCE 6200TC GeForce 6200TC
ATI ASUS EAX700PRO/TVD Radeon X700 Pro
ASUS Extreme AX800XL RadeonX800XL
ASUSEAX1900XT/2DHTV RadeonX1900XT
ABITX600XT RadeonX600XT
Gecube GC-RX700S-D3H RadeonX700SE
GECUBERX1600PG2 RadeonX1600PRO
GecubeRX1600XTG3-D3/256M RadeonX1600XT
GECUBEX1800XTD-VIE3 RadeonX1800XT
GecubeX850XT-VIVO RadeonX850 XT
MSIRX1300GPRO-TD256E Radeon X1300 PRO
MSIRX1600GPRO-TD256E RadeonX1600PRO
MSIRX1600XT-T20256EZ RadeonX1600XT
PowerColorX800GT RadeonX800GT
PowerColorX800GTO16 RadeonX800GTO
For the latest updates of the supported PCI Express VGA card list for AGI Express
slot (PCI Express x4), please visit our website for details.
ASRock website: http://www.asrock.com/support/index.htm

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2.2.
2.2.
2.InstallationInstallation
InstallationInstallation
Installation
Pre-installation PrecautionsPre-installation Precautions
Pre-installation PrecautionsPre-installation Precautions
Pre-installation Precautions
Take note of the following precautions before you install mother-
board components or change any motherboard settings.
1. Unplug the power cord from the wall socket before touching any
component. Failure to do so may cause severe damage to the
motherboard, peripherals, and/or components.
2. To avoid damaging the motherboard components due to static
electricity, NEVER place your motherboard directly on the carpet
or the like. Also remember to use a grounded wrist strap or touch
a safety grounded object before you handle components.
3. Hold components by the edges and do not touch the ICs.
4. Whenever you uninstall any component, place it on a grounded
antstatic pad or in the bag that comes with the component.
5. When placing screws into the screw holes to secure the
motherboard to the chassis, please do not over-tighten the
screws! Doing so may damage the motherboard.
2.12.1
2.12.1
2.1 CPU InstallationCPU Installation
CPU InstallationCPU Installation
CPU Installation
For the installation of Intel 775-LAND CPU,
please follow the steps below.
Before you insert the 775-LAND CPU into the socket, please check if
the CPU surface is unclean or if there is any bent pin on the socket.
Do not force to insert the CPU into the socket if above situation is
found. Otherwise, the CPU will be seriously damaged.
775-Pin Socket Overview