ASUS C8HM70I, C8HM70-I-HDMI User Manual
C8HM70-I SERIES
•
C8HM70-I
•
C8HM70-I/HDMI
Motherboard
E7848
First Edition
November 2012
Copyright © 2012 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
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Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
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ii
Contents
Safety information ....................................................................................................... v
About this guide ......................................................................................................... vi
C8HM70-I SERIES specications summary ........................................................... viii
Package contents ........................................................................................................ x
Product introduction
1.1 Before you proceed ...................................................................................... 1-1
1.2 Motherboard overview .................................................................................
1.2.1 Placement direction ........................................................................
1.2.2 Screw holes ....................................................................................
1.2.3 Motherboard layout .........................................................................
1.2.4 Layout contents ...............................................................................
1.3 Central Processing Unit (CPU) ....................................................................
1.4 System memory ............................................................................................
1.4.1 Overview .........................................................................................
1.4.2 Memory congurations ....................................................................
1.5 Expansion slots ............................................................................................
1.5.1 Installing an expansion card ...........................................................
1.5.2 Conguring an expansion card .......................................................
1.5.3 PCI Express x16 slot .......................................................................
1.6 Jumpers
1.7 Connectors ....................................................................................................
1.7.1 Rear panel connectors ....................................................................
1.7.2 Internal connectors .......................................................................
1.8 Software support ........................................................................................
1.8.1 Installing an operating system ......................................................
1.8.2 Support DVD information ..............................................................
.........................................................................................................1-7
1-10
1-15
1-15
1-15
1-2
1-2
1-2
1-3
1-3
1-4
1-4
1-4
1-4
1-6
1-6
1-6
1-6
1-8
1-8
BIOS information
2.1 Managing and updating your BIOS .............................................................2-1
2.1.1 ASUS Update utility ........................................................................
2.1.2 ASUS EZ Flash 2 ............................................................................
2.1.3 ASUS CrashFree BIOS 3 utility ......................................................
2.1.4 ASUS BIOS Updater .......................................................................
2.2 BIOS setup program .....................................................................................
2.3 Main menu ...................................................................................................
2.3.1 System Language [English] ..........................................................
2.3.2 System Date [Day xx/xx/xxxx] .......................................................
2.3.3 System Time [xx:xx:xx] .................................................................
2.3.4 Security .........................................................................................
2-1
2-2
2-3
2-4
2-6
2-10
2-10
2-10
2-10
2-10
iii
2.4 Ai Tweaker menu ........................................................................................ 2-12
2.4.1
2.4.2 DRAM Timing Control ...................................................................
2.4.3 CPU Power Management .............................................................
2.5 Advanced menu ..........................................................................................
2.5.1 CPU Conguration ........................................................................
2.5.2 PCH Conguration ........................................................................
2.5.3 SATA Conguration .......................................................................
2.5.4 System Agent Conguration .........................................................
2.5.5 USB Conguration ........................................................................
2.5.6 Onboard Devices Conguration ....................................................
2.5.7 APM ..............................................................................................
2.5.8 Network Stack ...............................................................................
2.6 Monitor menu ..............................................................................................
2.6.1 CPU Temperature / MB Temperature
2.6.2 CPU / Chassis Fan Speed [xxxx RPM] or [Ignore] / [N/A] ............
2.6.3 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage ..................
2.6.4 Chassis Q-Fan Control [Enabled] .................................................
2.6.5 Anti Surge Support [Disabled] .......................................................
2.7 Boot menu ...................................................................................................
2.7.1 Fast Boot [Enabled] ......................................................................
2.7.2 Full Screen Logo [Enabled] ...........................................................
2.7.3 Bootup NumLock State [On] .........................................................
2.7.4 Wait for ‘F1’ If Error [Enabled] .......................................................
2.7.5 Option ROM Messages [Force BIOS] ...........................................
2.7.6 Setup Mode [EZ Mode] .................................................................
2.7.7 CSM (Compatibility Support Module) ............................................
2.7.8 Secure Boot ..................................................................................
2.7.9 Boot Option Priorities ....................................................................
2.7.10 Boot Override ................................................................................
2.8 Tools menu ..................................................................................................
2.8.1 ASUS EZ Flash 2 Utility ................................................................
2.8.2 ASUS O.C. Prole .........................................................................
2.8.3 ASUS SPD Information .................................................................
2.9 Exit menu ....................................................................................................
Memory Frequency [Auto] .............................................................2-12
2-13
2-13
2-14
2-14
2-16
2-16
2-17
2-18
2-19
2-20
2-20
2-21
[xxxºC/xxxºF]...................... 2-21
2-21
2-21
2-22
2-22
2-23
2-24
2-24
2-25
2-25
2-25
2-25
2-25
2-26
2-27
2-27
2-27
2-28
2-28
2-28
2-29
Appendices
Notices ..................................................................................................................... A-1
ASUS contact information ...................................................................................... A-4
iv
Safety information
Electrical safety
To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
•
before relocating the system.
When adding or removing devices to or from the system, ensure that the power cables
•
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
Before connecting or removing signal cables from the motherboard, ensure that all
•
power cables are unplugged.
Seek professional assistance before using an adapter or extension cord. These devices
•
could interrupt the grounding circuit.
Ensure that your power supply is set to the correct voltage in your area. If you are not
•
sure about the voltage of the electrical outlet you are using, contact your local power
company.
If the power supply is broken, do not try to x it by yourself. Contact a qualied service
•
technician or your retailer.
Operation safety
Before installing the motherboard and adding devices on it, carefully read all the manuals
•
that came with the package.
Before using the product, ensure all cables are correctly connected and the power
•
cables are not damaged. If you detect any damage, contact your dealer immediately.
To avoid short circuits, keep paper clips, screws, and staples away from connectors,
•
slots, sockets and circuitry.
Avoid dust, humidity, and temperature extremes. Do not place the product in any area
•
where it may become wet.
Place the product on a stable surface.
•
If you encounter technical problems with the product, contact a qualied service
•
technician or your retailer.
v
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports.
• Chapter 2: BIOS information
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.
Where to nd more information
Refer to the following sources for additional information and for product and software
updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
vi
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself when
completing a task.
CAUTION: Information to prevent damage to the components when
completing a task
IMPORTANT: Instructions that you MUST follow to complete a task. .
NOTE: Tips and additional information to help you complete a task.
Typography
Bold text Indicates a menu or an item to select.
Italics
<Key> Keys enclosed in the less-than and greater-than sign
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
Used to emphasize a word or a phrase.
means that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
names are linked with a plus sign (+).
vii
C8HM70-I SERIES specications summary
CPU Intel® Celeron® 847 (BGA1023)
Chipset Intel® HM70 chipset
Memory 2 x SODIMM, max. 16GB, DDR3 1333/1066 MHz, non-ECC, un-buffered
Graphics Integrated Graphics Processor- Intel® HD Graphics support
Expansion slots 1 x PCIe 2.0 x16 (with latch)
Storage
LAN
Audio Realtek® 887VD 8-channel High Denition Audio CODEC
USB Intel® HM70 Express Chipset
ASUS unique
features
Back Panel I/O
ports
Internal I/O
connectors
memory
Dual-channel memory architecture
• Refer to
1 x Serial ATA 3Gb/s, 1 x Serial ATA 6Gb/s support AHCI Mode
Realtek® 8111F-VB Gigabit LAN controller
• Use a chassis with HD audio module in the front panel to support an
www.asus.com or the user manual for Memory QVL (Qualify
Vendor List)
- Supports D-sub with Max. resolution of 2048x1536@75 Hz
- Supports HDMI with Max. resolution of 1920x1200@60 Hz (C8HM70-
I/HDMI only)
8-channel audio output.
- 6 x USB 2.0/1.1 ports (2 ports at mid-board, 4 ports at back panel)
- 2 x USB 3.0/2.0 ports
ASUS EZ DIY
- ASUS UEFI BIOS featuring friendly graphics user interface
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS MyLogo 2
- Ai Suite II
1 x PS/2 keyboard/mouse combo port
1 x VGA port
1 x HDMI port (C8HM70-I /HDMI only)
1 x LAN (RJ-45) port
4 x USB 2.0/1.1 ports
2 x USB 3.0/2.0 ports
3 Audio jacks
1 x USB 2.0/1.1 connectors support additional 2 USB 2.0/1.1 ports
1 x Chassis fan connector
1 x CPU fan connector
1 x Chassis Intrusion connector
1 x System panel connector
1 x 24-pin EATX power connector
1 x 4-pin ATX 12V poweer connector
1 x Front panel audio connector(s) (AAFP)
1 x Internal speaker connector(s)
viii
(continued on the next page)
C8HM70-I SERIES specications summary
BIOS features 64 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI2.0, WfM2.0,SM BIOS 2.7,
Support DVD Drivers
Form factor
Specications are subject to change without notice.
ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree
BIOS 3
ASUS utilities
ASUS Update
Anti-virus software (OEM version)
Mini ITX Form Factor, 6.7” x 6.7” (17cm x 17cm)
ix
Package contents
C8HM70-I/HDMI
USB1112
AAFP
Lithium Cell
CMOS Power
ALC
887
RTL
8111F
Super
I/O
64Mb
BIOS
SB_PWR
CLRTC
SPEAKER
CHASSIS
EATXPWR
ATX12V
Intel
®
HM70
Intel
®
Celeron847
DDR3 DIMM_B1 (64bit 204-pin module)
DDR3 DIMM_A1 (64bit, 204-pin module)
SATA3G_1
SATA6G_1
KB_USB910
USB3_12
HDMI
AUDIO
LAN_USB34
F_PANEL
CHA_FAN
CPU_FAN
VGA
PCIEX16_1
User Manual
Check your motherboard package for the following items.
x
ASUS C8HM70-I/HDMI motherboard
1 x Serial ATA 3.0 Gb/s cable
1 x Serial ATA 6.0 Gb/s cable
1 x I/O-Shield User Guide Support DVD
• C8HM70-I Series motherboards include C8HM70-I and C8HM70-I/HDMI models. The
package contents vary from models.
• If any of the above items is damaged or missing, contact your retailer.
• The illustrated items above are for reference only. Actual product specications may
vary with different models.
Product introduction
SB_PWR
ON
Standby Power Powered Off
OFF
C8HM70-I/HDMI Onboard LED
C8HM70-I/HDMI
1
1.1 Before you proceed
Take note of the following precautions before you install motherboard components or change
any motherboard settings.
• Unplug the power cord from the wall socket before touching any component.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due
to static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, ensure that the ATX power supply 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, or components.
Standby Power LED
The motherboard comes with a standby power LED that lights up to indicate that the system
is ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down
the system and unplug the power cable before removing or plugging in any motherboard
component. The illustration below shows the location of the onboard LED.
ASUS C8HM70-I Series
1-1
C8HM70-I/HDMI
1.2 Motherboard overview
Before you install the motherboard, study the conguration of your chassis to ensure that the
motherboard ts into it.
Ensure that you unplug the power cord before installing or removing the motherboard.
Failure to do so can cause you physical injury and damage motherboard components.
C8HM70-I Series motherboards include C8HM70-I and C8HM70-I/HDMI models. The
package contents vary from models. The layout illustrations in this user guide are for
C8HM70-I/HDMI only.
1.2.1 Placement direction
When installing the motherboard, ensure that you place it into the chassis in the correct
orientation. The edge with external ports goes to the rear part of the chassis as indicated in
the image below.
1.2.2 Screw holes
Place four screws into the holes indicated by circles to secure the motherboard to the
chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side towards
the rear of the chassis
1-2
Chapter 1: Product introduction
1.2.3 Motherboard layout
C8HM70-I/HDMI
USB1112
AAFP
Lithium Cell
CMOS Power
ALC
887
RTL
8111F
Super
I/O
64Mb
BIOS
SB_PWR
CLRTC
SPEAKER
CHASSIS
EATXPWR
ATX12V
Intel
®
HM70
Intel
®
Celeron847
DDR3 DIMM_B1 (64bit, 204-pin module)
DDR3 DIMM_A1 (64bit, 204-pin module)
SATA3G_1
SATA6G_1
KB_USB910
USB3_12
HDMI
AUDIO
LAN_USB34
F_PANEL
CHA_FAN
CPU_FAN
VGA
PCIEX16_1
17.0cm(6.7in)
17.0cm(6.7in)
4
2
5
13
12
11 7
6
1098
21 3
Following Intel’s specication, USB 2.0 ports 5 ~ 8 are disabled on the motherboards with
Intel® HM70 chipset.
1.2.4 Layout contents
Connectors/Jumpers/Slots/LED Page
1. CPU and chassis fan connectors (3-pin CPU_FAN and 4-pin CHA_FAN) 1-12
2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-11
3. Intel® Celeron847 (BGA1023) processor 1-4
4. DDR3 SO-DIMM sockets 1-4
5. Serial ATA 6.0Gb/s connectors (7-pin SATA6G [gray]) 1-13
6. Standby power LED (SB_PWR) 1-1
7. Serial ATA 3.0Gb/s connectors (7-pin SATA3G [blue]) 1-13
8. System panel connector (10-1 pin PANEL) 1-14
10. Speaker connector (4-pin SPEAKER) 1-14
11. Clear RTC RAM (3-pin CLRTC) 1-7
12. Front panel audio connector (10-1 pin AAFP) 1-10
13. USB 2.0 connectors (10-1 pin USB1112) 1-12
ASUS C8HM70-I Series
9. Chassis intrusion connector (4-1 pin CHASSIS) 1-11
1-3
1.3 Central Processing Unit (CPU)
C8HM70-I/HDMI CPU Celeron847
Intel
®
Celeron847
C8HM70-I/HDMI
C8HM70-I/HDMI 204-pin DDR3 DIMM sockets
DIMM_B1
DIMM_A1
C8HM70-I/HDMI
The motherboard comes with an onboard Intel® Celeron™ 847 (BGA1023) processor and a
specially designed CPU heatsink.
1.4 System memory
1.4.1 Overview
This motherboard comes with two Double Data Rate 3 (DDR3) Small Outline Dual Inline
Memory Modules (SO-DIMM) sockets. The gure illustrates the location of the DDR3 DIMM
sockets:
Channel Sockets
Channel A DIMM_A1
Channel B DIMM_B1
1.4.2 Memory congurations
You may install 512MB, 1GB, 2GB, 4GB and 8GB unbuffered non-ECC DDR3 SO-DIMMs
into the DIMM sockets.
• Always install DIMMs with the same CAS latency. For optimum compatibility, it is
recommended that you obtain memory modules from the same vendor.
• Due to the CPU limitation, when you install 4GB or more memory on the motherboard,
the actual usable memory for the OS can be about 3GB or less. For effective use of
memory, we recommend that you use a maximum of 3GB system memory.
• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or
less.
1-4
Chapter 1: Product introduction
C8HM70-I Series Motherboard Qualied Vendors Lists (QVL)
DDR3-1333 MHz capability
Vendors Part No. Size
CORSAIR CMSO2GX3M1A1333C9 2GB DS CORSAIR 256M8DCJG - - · ·
CORSAIR CMSO4GX3M1A1333C9 4GB DS CORSAIR 256M8DCJG - - · ·
G.SKILL F3-10666CL9S-2GBSQ 2GB DS G.SKILL D3 256M8GEF 9-9-9-24 - · ·
G.SKILL F3-10666CL9S-4GBSQ 4GB DS G.SKILL D3 256M8GEF 9-9-9-24 - · ·
GEIL GS31GB1333C9SC 1GB DS GEIL GL1L128M88BA15B 9-9-9-24 1.5V · ·
GEIL GS32GB1333C9SC 2GB DS GEIL GL1L128M88BA15KW 9-9-9-24 1.5V · ·
GEIL GS34GB1333C9SC 4GB DS GEIL GL1L256M88BA15H 9-9-9-24 1.5V · ·
Hynix HMT125S6TFR8C-H9 2GB DS Hynix H5TQ1G83TFRH9C - - · ·
Kingmax FSFD45F-B8KL9-NBE 1GB DS Kingmax KFB8FNLXF-BNF-15A - - ·
Kingmax FSFE85F-C8KM9-NBE 2GB DS Kingmax KFC8FNMXF-BXX-15A - - · ·
Kingmax FSFF65F-C8KM9-NAE 4GB DS Kingmax KFC8FNMXF-BXX-15A - - · ·
KINGSTON KVR1333D3S9/1G 1GB DS ELPIDA J1108BDBG-DJ-F 9 1.5V · ·
KINGSTON KVR1333D3S9/2G 2GB DS KTC D1288JPNDPLD9U 9 1.5V · ·
KINGSTON KVR16S11/8 8GB DS EPIDA J4208BBBG-GN-F - 1.5V · ·
PSC AS8F8G73F-DJ2 2GB DS PSC A3P1GF3FGF - - · ·
SAMSUNG M471B5773CHS-CH9 2GB DS SAMSUNG K4B2G0846C - - · ·
SS/
Chip Brand Chip No. Timing Voltage
DS
DIMM socket
support (optional)
1DIMM 2DIMMs
DDR3-1067 MHz capability
DIMM socket
Vendors Part No. Size
A-Data DDR3 1066(7) SO-DIMM 1GB DS Hynix H5TQ1G83AFPH9C - - · ·
Apacer AS01GFA06C7NBGC 1GB DS Apacer AM5D5808DEHSBG 7 - · ·
Apacer AS02GFA06C7NBGC 2GB DS Apacer AM5D5808DQQSBG 7 - · ·
CORSAIR CM3X2GSD1066 G 2GB DS CORSAIR 128M8DCJG - - · ·
CORSAIR CM3X4GSD1066 G 4GB DS CORSAIR 256M8DCJG - - · ·
G.SKILL F3-8500CL7S-2GBSQ 2GB DS G.SKILL D3 256M8GEF 7-7-7-20 - · ·
G.SKILL F3-8500CL7S-4GBSQ 4GB DS G.SKILL D3 256M8GEF 7-7-7-20 - · ·
GEIL GS31GB1066C7SC 1GB DS GEIL GL1L128M88BA15B 7-7-7-20 1.5V · ·
GEIL GS32GB1066C7SC 2GB DS GEIL GL1L128M88BA15KW 7-7-7-20 1.5V · ·
GEIL GS38GB1066C7DC 8GB(2x4GB) DS GEIL GL1L256M88BA15H 7-7-7-20 1.5V · ·
Hynix HMT125S6BFR8C-G7 2GB DS Hynix H5TQ1G83BFRG7C - - · ·
Kingmax FSED45F-B8KL7-NBF 1GB DS Kingmax KFB8FNLXF-BNF-15A - - · ·
Kingmax FSEE85F-C8KM7-NBF 2GB DS Kingmax KFC8FNMXF-BXX-15A - - ·
Kingmax FSEF65F-C8KM7-NAF 4GB DS Kingmax KFC8FNMXF-BXX-15A - - · ·
KINGSTON KVR1066D3S7/1G 1GB DS KTC D1288JPPDPGD9U 7 1.5V · ·
KINGSTON KVR1066D3S7/1G 1GB DS ELPIDA J1108BDSE-DJ-F - 1.5V · ·
KINGSTON KVR1066D3S7/2G 2GB DS KTC D1288JPNDPLD9U 7 1.5V · ·
SAMSUNG M471B2873EH1-CF8 1GB DS SAMSUNG K4B1G0846E - - · ·
SAMSUNG M471B5673FH0-CF8 2GB DS SAMSUNG K4B1G0846F - - · ·
Elixir M2S1G64CBH8A4P-BE 1GB DS Elixir N2CB1616AP-BE - - · ·
KINGTIGER 1GB DIMM PC3-8500 1GB DS Qimonda IDSH1G-04A1F1C-10F - - · ·
KINGTIGER 1GB DIMM PC3-8500 1GB DS SAMSUNG K4B1G16460-HCF8 - - · ·
KINGTIGER 2GB DIMM PC3-8500 2GB DS Hynix H5TQ1G83BFRG7C - - · ·
SS/
Chip Brand Chip No. Timing Voltage
DS
support
(optional)
1DIMM 2DIMMs
SS: Single-sided / DS: Double-sided
DIMM support:
• A*: Supports one module inserted into either slot.
• B*: Supports one pair of modules inserted into both the slots.
Visit the ASUS website at www.asus.com for the latest QVL.
ASUS C8HM70-I Series
1-5
1.5 Expansion slots
In the future, you may need to install expansion cards. The following sub-sections describe
the slots and the expansion cards that they support.
Unplug the power cord before adding or removing expansion cards. Failure to do so may
cause you physical injury and damage motherboard components.
1.5.1 Installing an expansion card
To install an expansion card:
1. Before installing the expansion card, read the documentation that came with it and
make the necessary hardware settings for the card.
2. Remove the system unit cover (if your motherboard is already installed in a chassis).
3. Remove the bracket opposite the slot that you intend to use. Keep the screw for later
use.
4. Align the card connector with the slot and press rmly until the card is completely
seated on the slot.
5. Secure the card to the chassis with the screw you removed earlier.
6. Replace the system cover.
1.5.2 Conguring an expansion card
After installing the expansion card, congure it by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for
information on BIOS setup.
2. Assign an IRQ to the card.
3. Install the software drivers for the expansion card.
1.5.3 PCI Express x16 slot
This motherboard has a PCI Express 2.0 x16 slot (at 16x mode) that supports PCI Express
2.0 x16 graphic cards complying with the PCI Express specications.
1-6
Chapter 1: Product introduction
1.6 Jumpers
C8HM70-I/HDMI Clear RTC RAM
1 2
2 3
Normal
(Default)
Clear RTC
CLRTC
C8HM70-I/HDMI
Clear RTC RAM (3-pin CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can
clear the CMOS memory of date, time, and system setup parameters by erasing
the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in
CMOS, which include system setup information such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3
for about 5-10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <
enter data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
Del> key during the boot process and enter BIOS setup to re-
• If the steps above do not help, remove the onboard battery and move the jumper
again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the
battery.
• You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature.
Shut down and reboot the system, then the BIOS automatically resets parameter
settings to default values.
ASUS C8HM70-I Series
1-7
1.7 Connectors
3 42
567
1
10 9
8
1.7.1 Rear panel connectors
1. PS/2 Keyboard / Mouse Combo port. This port is for a PS/2 keyboard or PS/2
mouse.
2. LAN (RJ-45) port.
through a network hub. Refer to the table below for the LAN port LED indications.
LAN port LED indications
Activity/Link LED Speed LED
Status Description Status Description
OFF No link OFF 10Mbps connection
ORANGE Linked ORANGE 100Mbps connection
BLINKING Data activity GREEN 1Gbps connection
3. Line In port (light blue). This port connects to the tape, CD, DVD player, or other
audio sources.
4. Line Out port (lime).
8-channel congurations, the function of this port becomes Front Speaker Out.
5. Microphone port (pink).
This port allows Gigabit connection to a Local Area Network (LAN)
LED
LAN port
Speed
LED
Activity Link
This port connects to a headphone or a speaker. In the 4, 6, and
This port connects to a microphone.
1-8
Refer to the audio conguration table below for the function of the audio ports in 2, 4, 6, or
8-channel conguration.
Audio 2, 4, 6, or 8-channel conguration
Port
Light Blue (Rear panel) Line In Rear Speaker Out Rear Speaker Out Rear Speaker Out
Lime (Rear panel) Line Out Front Speaker Out Front Speaker Out Front Speaker Out
Pink (Rear panel) Mic In Mic In Bass/Center Bass/Center
Lime (Front panel) — — — Side Speaker Out
Headset
2-channel
4-channel 6-channel 8-channel
Chapter 1: Product introduction
To congure an 8-channel audio output:
Use a chassis with HD audio module in the front panel to support an 8-channel audio
output.
6. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are for USB
2.0/1.1 devices.
7. Video Graphics Adapter (VGA) port.
This 15-pin port is for a VGA monitor or other
VGA-compatible devices
8. HDMI port (C8HM70-I/HDMI only).
This port is for a High-Denition Multimedia
Interface (HDMI) connector, and is HDCP compliant allowing playback of HD DVD,
Blu-Ray, and other protected content.
9. USB 3.0 ports 1 and 2.
These two 9-pin Universal Serial Bus (USB) ports are
available for connecting USB 3.0 devices.
• DO NOT connect a keyboard / mouse to any USB 3.0 port when installing Windows
operating system.
• Due to USB 3.0 controller limitation, USB 3.0 devices can only be used under
Windows® OS environment and after the USB 3.0 driver installation.
• USB 3.0 devices can only be used as data storage only.
• We strongly recommend that you connect USB 3.0 devices to USB 3.0 ports for faster
and better performance for your USB 3.0 devices.
®
10. USB 2.0 ports 9 and 10. These two 4-pin Universal Serial Bus (USB) ports are for
USB 2.0/1.1 devices.
ASUS C8HM70-I Series
1-9
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