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Disclaimer:Disclaimer:
Disclaimer:
Disclaimer:Disclaimer:
Specifications and information contained in this manual 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 manual.
With respect to the contents of this manual, 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 a n y
defect or error in the manual or product.
Thank you for purchasing ASRock 775S61 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.
Chapter 1 and 2 of this manual contain introduction of the motherboard and step-bystep installation guide for new DIY system builders. Chapter 3 and 4 contain basic
BIOS setup and Support CD information. For advanced users’ reference, the Appendix appearing on page 23 offers more advanced BIOS setup information.
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 memory 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 Contents
1.1 Package Contents1.1 Package Contents
ASRock 775S61 Motherboard
(Micro ATX Form Factor: 9.6-in x 9.0-in, 24.4 cm x 22.9 cm)
ASRock 775S61 Quick Installation Guide
ASRock 775S61 Support CD (including LGA 775 CPU Installation Live Demo)
One 80-conductor Ultra ATA 66/100/133 IDE Ribbon Cable
One Ribbon Cable for a 3.5-in Floppy Drive
One ASRock I/OTM Shield
One COM Port Bracket
One ASRock MR Card (Optional)
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1.2 Specifications1.2 Specifications
1.2 Specifications
1.2 Specifications1.2 Specifications
Platform:Micro ATX Form Factor: 9.6-in x 9.0-in, 24.4 cm x 22.9 cm
CPU:775-Pin Socket
PC2100 (DDR266) for 3 DDR DIMM slots, Max. 3GB;
PC2700 (DDR333) for 2 DDR DIMM slots, Max. 2GB;
PC3200 (DDR400) for 1 DDR DIMM slots, Max. 1GB
IDE:IDE1: ATA 133 / Ultra DMA Mode 6;
IDE2: ATA 133 / Ultra DMA Mode 6;
Supports up to 4 IDE devices
Floppy Port:Supports up to 2 floppy disk drives
Audio:6 channels AC’97 Audio
LAN:Speed: 802.3u (10/100 Ethernet), supports Wake-On-LAN
Hardware Monitor: CPU temperature sensing;
Chassis temperature sensing;
CPU overheat shutdown to protect CPU life (ASRock U-COP)
(see CAUTION 2);
CPU fan tachometer; Chassis fan tachometer;
Voltage monitoring: +12V, +5V, +3.3V, Vcore
PCI slots:3 slots with PCI Specification 2.2, PCI3 slot shared with AMR
AGP slot:1 AGP slot, AGP 3.5 compliant,
supports 1.5V, 8X / 4X AGP card (see CAUTION 3)
AMR slot:1 slot, supports ASRock MR card
USB 2.0:6 USB 2.0 ports:
includes 4 default USB 2.0 ports on the rear panel,
plus one header to support 2 additional USB 2.0 ports
1 RJ 45 port; 4 default USB 2.0 ports;
Audio Jack: Line Out / Line In / Microphone + Game port
BIOS:AMI legal BIOS; Supports “Plug and Play”;
ACPI 1.1 compliance wake up events;
CPU frequency stepless control
(only for advanced users’ reference, see CAUTION 5)
OS:Microsoft® Windows® 98SE / ME / 2000 / XP compliant
CAUTION!
1. About the setting of “Hyper Threading Technology”, please check page 23.
2. While CPU overheat is detected, the system will automatically shutdown.
Please check if the CPU fan on the motherboard functions properly
before you resume the system. To improve heat dissipation, remember to
spray thermal grease between the CPU and the heatsink when you install
the PC system.
3. Do NOT use a 3.3V AGP card on the AGP slot of 775S61 motherboard!
It may cause permanent damage!
4. Power Management for USB 2.0 works fine under Microsoft® Windows
XP SP1/2000 SP4. It may not work properly under Microsoft® Windows
98/ME. Please refer to Microsoft® official document at
http://www.microsoft.com/whdc/hwdev/bus/USB/USB2support.mspx
5. Although 775S61 offers stepless control, it is not recommended to perform
over clocking. When the CPU frequency of 775S61 is set to perform over
clocking, other clocks, such as PCI clock, AGP clock and Memory clock
will also be overclocked proportionally. Frequencies other than the
recommended CPU bus frequencies may cause the instability of the
system or damage the CPU and the motherboard.
1Parallel Port6Line Out (Lime)
2RJ-45 Port7USB 2.0 Ports
3Game Port8V GA Port
4Microphone (Pink)9PS/2 Keyboard Port (Purple)
5Line In (Light Blue)10PS/2 Mouse Port (Green)
TMTM
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Chapter 2 InstallationChapter 2 Installation
Chapter 2 Installation
Chapter 2 InstallationChapter 2 Installation
775S61 is a Micro ATX form factor (9.6" x 9.0", 24.4 x 22.9 cm) motherboard. Before
you install the motherboard, study the configuration of your chassis to
ensure that the motherboard fits into it.
Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so may cause physical injuries to you and
damages to motherboard components.
2.1 Screw Holes2.1 Screw Holes
2.1 Screw Holes
2.1 Screw Holes2.1 Screw Holes
Place screws into the holes indicated by circles to secure the motherboard to the
chassis.
Do not over-tighten the screws! Doing so may damage the motherboard.
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
1. Unplug the power cord from the wall socket before touching any component.
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 antistatic pad or
in the bag that comes with the component.
Before you install or remove any component, ensure that the power is
switched off or the power cord is detached from the power supply.
Failure to do so may cause severe damage to the motherboard, peripherals,
and/or components.
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2.3 CPU Installation2.3 CPU Installation
2.3 CPU Installation
2.3 CPU Installation2.3 CPU Installation
For the installation of Intel 775-Pin CPU,
please follow the steps below.
Before you insert the 775-Pin 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.
Step 1. Open the socket:
Step 1-1. Disengaging the lever by depressing
down and out on the hook to clear
retention tab.
Step 1-2. Rotate the load lever to fully open po-
sition at approximately 135 degrees.
Step 1-3. Rotate the load plate to fully open po-
sition at approximately 100 degrees.
775-Pin Socket Overview
Step 2. Insert the 775-Pin CPU:
Step 2-1. Hold the CPU by the edges where are
marked with black lines.
Step 2-2. Orient the CPU with IHS (Integrated
Heat Sink) up. Locate Pin1 and the two
orientation key notches.
Pin1
orientation
key notch
775-Pin CPU
1010
10
1010
orientation
key notch
Pin1
alignment key
black line
775-Pin Socket
black line
alignment key
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