Asus AT5NM10T-I NA User manual

Motherboard
AT5NM10T-I

ii
E6506
First Edition V1
March 2011
Copyright © 2011 ASUSTeK Computer Inc. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced,
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Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
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Offer to Provide Source Code of Certain Software
This product may contain copyrighted software that is licensed under the General Public License (“GPL”)
and under the Lesser General Public License Version (“LGPL”). The GPL and LGPL licensed code in this
product is distributed without any warranty. Copies of these licenses are included in this product.
You may obtain the complete corresponding source code (as dened in the GPL) for the GPL Software,
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we would be much obliged if you give us a notication to the email address [email protected], stating the
product and describing the problem (please do NOT send large attachments such as source code archives
etc to this email address).

iii
Contents
Notices.......................................................................................................... v
Safety information ...................................................................................... vi
About this guide ........................................................................................ vii
AT5NM10T-I specications summary ..................................................... viii
Chapter 1: Product introduction
1.1 Before you proceed ..................................................................... 1-1
1.2 Motherboard overview................................................................. 1-2
1.2.1 Motherboard layout ......................................................... 1-2
1.2.2 Layout contents............................................................... 1-2
1.3 Central Processing Unit (CPU) ................................................... 1-3
1.4 System memory ........................................................................... 1-3
1.4.1 Overview ......................................................................... 1-3
1.4.2 Memory congurations.................................................... 1-4
1.5 Expansion slot.............................................................................. 1-6
1.5.1 Installing an expansion card ........................................... 1-6
1.5.2 Conguring an expansion card ....................................... 1-6
1.5.3 PCI Express x4 slots....................................................... 1-6
1.6 Jumpers ........................................................................................ 1-7
1.7 Connectors ................................................................................... 1-9
1.7.1 Rear panel connectors.................................................... 1-9
1.7.2 Internal connectors ....................................................... 1-10
1.8 Software support........................................................................ 1-16
1.8.1 Installing an operating system ...................................... 1-16
1.8.2 Support DVD information .............................................. 1-16
Chapter 2: BIOS information
2.1 Managing and updating your BIOS ............................................ 2-1
2.1.1 ASUS Update utility ........................................................ 2-1
2.1.2 ASUS EZ Flash 2............................................................ 2-2
2.1.3 ASUS CrashFree BIOS 3................................................ 2-3
2.2 BIOS setup program .................................................................... 2-4

iv
Contents
2.3 Main menu .................................................................................... 2-5
2.3.1 System Time [xx:xx:xx] ................................................... 2-5
2.3.2 System Date [Day xx/xx/xxxx]......................................... 2-5
2.3.3 SATA 1/2 ......................................................................... 2-5
2.3.4 Storage Conguration ..................................................... 2-6
2.3.5 System Information ......................................................... 2-6
2.4 Advanced menu ........................................................................... 2-7
2.4.1 CPU Conguration .......................................................... 2-7
2.4.2 Chipset............................................................................ 2-7
2.4.3 Onboard Devices Conguration...................................... 2-8
2.4.4 USB Conguration .......................................................... 2-9
2.4.5 PCIPnP ........................................................................... 2-9
2.5 Power menu................................................................................ 2-10
2.5.1 Suspend Mode [S3 Only] .............................................. 2-10
2.5.2 ACPI 2.0 Support [Enabled].......................................... 2-10
2.5.3 ACPI APIC Support [Enabled]....................................... 2-10
2.5.4 Control EuP [Disabled].................................................. 2-10
2.5.5 APM Conguration........................................................ 2-10
2.5.6 Hardware Monitor ..........................................................2-11
2.6 Boot menu .................................................................................. 2-12
2.6.1 Boot Device Priority ...................................................... 2-12
2.6.2 Boot Settings Conguration .......................................... 2-12
2.6.3 Security ......................................................................... 2-13
2.7 Tools menu ................................................................................. 2-14
2.8 Exit menu.................................................................................... 2-14

v
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the 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 manufacturer’s instructions, may cause harmful interference
to radio 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 receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
This class B digital apparatus complies with Canadian ICES-003.
ASUS Recycling/Takeback Services
ASUS recycling and takeback programs come from our commitment to the highest standards
for protecting our environment. We believe in providing solutions for you to be able to
responsibly recycle our products, batteries, other components as well as the packaging
materials. Please go to http://csr.asus.com/english/Takeback.htm for the detailed recycling
information in different regions.
The use of shielded cables for connection of the monitor to the graphics card is required
to assure compliance with FCC regulations. Changes or modications to this unit not
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.

vi
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.
REACH
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://csr.asus.com/english/REACH.htm.
Safety information
Electrical safety
• To prevent electric shock hazard, disconnect the power cable from the electric 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 qualied 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 that 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 qualied service
technician or your retailer.

vii
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 trying to
complete a task.
CAUTION: Information to prevent damage to the components when trying to
complete a task.
NOTE: Tips and additional information to help you complete a task.
IMPORTANT: Instructions that you MUST follow to complete a task.
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.
Typography
Bold text Indicates a menu or an item to select.
Italics Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign means
that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
<Key1>+<Key2>+<Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).
Example: <Ctrl>+<Alt>+<D>
About this guide
This user guide contains the information you need when installing and conguring 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.

viii
CPU Intel®Atom™ D525 processor
Chipset Intel®NM10
Memory Single channel memory architecture
- 2 x 204-pin SO-DIMM sockets support maximum 4GB
non-ECC DDR3 800 MHz memory modules
* Refer to www.asus.com or this user manual for the
Memory QVL (Qualied Vendors Lists).
** When you install a total memory of 4GB capacity
or more, the operating system may only recognize less
than 3GB. Thus, we recommend a maximum of 3GB
system memory.
Graphics Intel®Graphics Media Accelerator 3150
Maximum shared memory of 256MB
Expansion slot 1x PCIe x4 slot (@ x1 speed)
Storage 4 x Serial ATA 3Gb/s ports support AHCI mode
Audio VIA® VT1705 6-channel High Denition Audio CODEC
LAN Realtek®RTL8111E PCIe Gigabit LAN controller
USB Supports up to 8 USB 2.0/1.1 ports (2 ports at mid-board,
6 ports at back panel)
ASUS special features ASUS CrashFree BIOS 3
ASUS EZ Flash 2
ASUS MyLogo 2™
* The actual boot time is subject to hardware congurations
and product models.
Rear panel ports 1 x PS/2 Keyboard/Mouse port
1 x COM port
1 x VGA port
1 x LAN (RJ-45) port
6 x USB 2.0/1.1 ports
6-channel audio I/O ports
Internal connectors 1 x USB 2.0/1.1 connector supports additional 2 USB 2.0/1.1
ports
4 x SATA 3.0 Gb/s connectors
1 x CPU fan connector
1 x Chassis fan connector
1 x Chassis intrusion connector
1 x TPM connector (optional)
1 x LPT connector
1 x 18bit LVDS connector
1 x S/PDIF Out connector
1 x Front panel audio connector
1 x Speaker connector
1 x System panel connector
1 x 24-pin EATX power connector
1 x 4-pin ATX 12V power connector
AT5NM10T-I specications summary
(continued on the next page)

ix
AT5NM10T-I specications summary
BIOS features 8 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0,
SMBIOS v2.6
Accessories 2 x Serial ATA cables
1 x I/O shield
1 x User Manual
1 x Support DVD
Support DVD contents Drivers
ASUS utilities
ASUS Update
Anti-virus software (OEM version)
Form Factor Mini ITX form factor: 6.7 in x 6.7 in (17cm x 17cm)
* Specications are subject to change without notice.

x

1-1 Chapter 1: Product introduction
Chapter 1
Product introduction
If any of the items is damaged or missing, contact your retailer.
Thank you for buying an ASUS®AT5NM10T-I motherboard!
Before you start installing the motherboard, and hardware devices on it, check the items in
your motherboard package. Refer to page ix for the list of accessories.
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.
Onboard 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 must 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.
SB_PWR
ON
Standby Power Powered Off
OFF
AT5NM10T-I
AT5NM10T-I Onboard LED

ASUS AT5NM10T-I 1-2
1.2.2 Layout contents
1.2 Motherboard overview
1.2.1 Motherboard layout
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.
Ensure that you install the motherboard into the chassis in the correct orientation. The edge
with external ports goes to the rear part of the chassis.
Place this side
towards the rear of
the chassis.
AT5NM10T-I
PCIEX4_1
USB78
AAFP
ATX12V
EATXPWR
CHA_FAN CPU_FAN
LVDS
Lithium Cell
CMOS Power
VIA
VT1705
RTL
8111E
JMB
362
Super
I/O
8Mb
BIOS
SB_PWR
CLRTC
SPDIF_OUT
USBPW78
PS2_USBPW1-6
17.0cm(6.7in)
17.0cm(6.7in)
Intel®
NM10
DDR3 SO-DIMM_A1 (64bit, 204-pin module)
Intel® Atom™
processor D525
DDR3 SO-DIMM_A2 (64bit, 204-pin module)
SATA3G_E2 SATA3G_2
SATA3G_E1 SATA3G_1
KB_USB56
AUDIO
LAN1_USB12
USB34
COM2
F_PANEL
CHASSIS
SPEAKER
VGA COM1
LPT
8
21 3 4 5 6
9
2
14 10
7
1112131718 16 15
Connectors/Jumpers/Slots/LED Page Connectors/Jumpers/Slots/LED Page
1. LPT connector (26-1 pin LPT ) 1-16 10. System panel connector (10-1 pin F_PANEL) 1-12
2. ATX power connectors (24-pin EATXPWR,
4-pin ATX12V) 1-10 11. Clear RTC RAM (3-pin CLRTC) 1-7
3. Serial port connector (10-1 pin COM2) 1-15 12. Onboard LED (SB_PWR) 1-1
4. CPU and chassis fan connectors (4-pin
CPU_FAN, 4-pin CHA_FAN) 1-13 13. Serial ATA connectors (7-pin SATA3G_1, SATA3G_2, SATA3G_E1, SATA3G_E2) 1-11
5. LVDS connector (30-pin LVDS) 1-14 14. USB connector (10-1 pin USB78) 1-11
6. Intel®Atom™ D525 processor 1-3 15. USB device wake-up (3-pin USBPW7-8) 1-15
7. DDR3 SO-DIMM sockets 1-3 16. Digital audio connector (4-1 pin SPDIF_OUT) 1-8
8. Chassis intrusion connector (4-1 pin CHASSIS) 1-12 17. Keyboard/mouse power setting (3-pin
PS2_USBPW1-6) 1-13
9. Speaker connector (4-pin SPEAKER) 1-12 18. Front panel audio connector (10-1 pin AAFP)

1-3 Chapter 1: Product introduction
AT5NM10T-I
AT5NM10T-I 204-pin DDR3 SO-DIMM sockets
DIMM_A1 DIMM_A2
1.3 Central Processing Unit (CPU)
The motherboard comes with an onboard Intel®Atom™ D525 processor and a specially
designed CPU heatsink.
If you need to use an additional CPU fan, connect the CPU fan cable to the connector on
the motherboard labeled CPU_FAN.
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 and DIMM_A2
AT5NM10T-I
AT5NM10T-I Intel®Atom™ processor D525
Intel®Atom™ processor D525
AT5NM10T-I CPU fan connector
AT5NM10T-I
CPU_FAN
GND CPU FAN PWR CPU FAN IN CPU FAN PWM

ASUS AT5NM10T-I 1-4
1.4.2 Memory congurations
You may install 512MB, 1GB, and 2GB 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.
AT5NM10T-I Motherboard Qualied Vendors Lists (QVL)
DDR3-1066 MHz capability
Vendor Part No. Size SS/DS Chip
Brand Chip NO. Timing Voltage DIMM support
A* B*
Transcend JM1066KSU-1G 1GB DS Transcend TK243EDF3 7 - • •
Transcend JM1066KSN-2G 2GB DS HYNIX H5TQ2G83BFRH9C 7 - • •
Transcend JM1066KSU-2G 2GB DS Transcend TK243PDF3 7 - • •
Transcend JM1066KSN-4G 4GB DS Micron 0OD12D9LGK 7 - • •
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 GS32GB1066C7SC 2GB DS GEIL GL1L128M88BA15KW 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 - - • •
Transcend JM1066KSU-1G 1GB DS Transcend TK243PDF3 7 - • •
ADATA DDR3 1066(7) SO-DIMM 1GB DS Hynix H5TQ1G83AFPH9C - - • •
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 - - • •

1-5 Chapter 1: Product introduction
DDR3-1333 MHz capability
(continued on the next page)
Vendor Part No. Size SS/
DS
Chip
Brand Chip NO. Timing Voltage DIMM support
A* B*
Transcend JM1333KSU-1G 1GB DS Transcend TK243PDF3 9 - • •
Transcend JM1333KSN-2G 2GB DS Micron 0ND22D9LGK 9 - • •
Transcend JM1333KSU-2G 2GB DS Transcend TK243PDF3 9 - • •
APACER AS01GFA33C9NBGC 1GB DS APACER AM5D5808AEWSBG 9 - • •
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 • •
OCZ OCZ3M13332GK 2GB(2 x 1GB) DS OCZ X43N6416AJ-13 9 - • •
OCZ OCZ3M13334GK 4GB(2 x 2GB) DS - 256X8DDR3 HL 9 - • •
PSC AS8F8G73F-DJ2 2GB DS PSC A3P1GF3FGF - - • •
SAMSUNG M471B5773CHS-CH9 2GB DS SAMSUNG K4B2G0846C - - • •
Transcend TS256MSK64V3N 2GB DS MICRON D9LGK - - • •
Visit the ASUS website at www.asus.com for the latest QVL.
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.
The 1333/1066 MHz memory modules run at 800 MHz on this motherboard.

ASUS AT5NM10T-I 1-6
1.5 Expansion slot
In the future, you may need to install expansion cards. The following sub-sections describe
the slot and the expansion cards that it supports.
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 Conguring an expansion card
After installing the expansion card, congure 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 x4 slots
This motherboard supports PCI Express x4 network cards, SCSI cards, and other cards that
comply with the PCI Express specications.

1-7 Chapter 1: Product introduction
1.6 Jumpers
1. 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.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
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.
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 <Del> key during the boot process and enter BIOS setup to re-enter
data.
AT5NM10T-I
AT5NM10T-I Clear RTC RAM
1 2 2 3
Normal
(Default)
Clear RTC
CLRTC

ASUS AT5NM10T-I 1-8
3. USB device wake-up (3-pin USBPW7-8)
Set this jumper to +5V to wake up the computer from S1 sleep mode (CPU stopped,
DRAM refreshed, system running in low power mode) using the connected USB
devices. Set to +5VSB to wake up from S3 and S4 sleep modes (no power to CPU,
DRAM in slow refresh, power supply in reduced power mode).
• The USB device wake-up feature requires a power supply that can provide 500mA on
the +5VSB lead for each USB port; otherwise, the system would not power up.
• The total current consumed must NOT exceed the power supply capability (+5VSB)
whether under normal condition or in sleep mode.
2. Keyboard/mouse power setting (3-pin PS2_USBPW1-6)
This jumper allows you to enable or disable the keyboard/mouse and USB port 1-6
wake-up feature. When you set this jumper to pins 2-3 (+5VSB), you can wake up
the computer by pressing a key on the keyboard, clicking the mouse or using a USB
device. This feature requires an ATX power supply that can supply at least 1A on the
+5VSB lead, and a corresponding setting in the BIOS. The PS2_USBPW1-6 jumper is
for the rear USB ports.
The total current consumed must NOT exceed the power supply capability (+5VSB)
whether under normal condition or in sleep mode.
AT5NM10T-I
AT5NM10T-I Keyboard/mouse power setting
PS2_USBPW1-6
21 2 3
+5V +5VSB
(Default)
AT5NM10T-I
AT5NM10T-I USB device wake-up
21 2 3
+5V
(Default)
+5VSB
USBPW78

1-9 Chapter 1: Product introduction
1. PS/2 Mouse/Keyboard port (purple/green). This port is for a PS/2 mouse/keyboard.
2. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN)
through a network hub. Refer to the table below for the LAN port LED indications.
1.7 Connectors
1.7.1 Rear panel connectors
ACT/LINK LED SPEED LED
Status Description Status Description
OFF No link OFF 10 Mbps connection
ORANGE Linked ORANGE 100 Mbps connection
BLINKING Data activity GREEN 1 Gbps connection LAN port
SPEED
LED
ACT/LINK
LED
LAN port LED indications
3. Line In port (light blue). This port connects to the tape, CD, DVD player, or other
audio sources.
4. Line Out port (lime). This port connects to a headphone or a speaker.
In the 4-channel and 6-channel congurations, the function of this port becomes Front
Speaker Out.
5. Microphone port (pink). This port connects to a microphone.
Refer to the audio conguration table below for the function of the audio ports in 2, 4, or
6-channel conguration.
Port Headset 2-channel 4-channel 6-channel
Light Blue Line In Rear Speaker Out Rear Speaker Out
Lime Line Out Front Speaker Out Front Speaker Out
Pink Mic In Mic In Bass/Center
6. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are for
USB 2.0 devices.
Audio 2, 4, or 6-channel conguration
2
7 69 8
3 4
5
1
10

ASUS AT5NM10T-I 1-10
7. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are for
USB 2.0 devices.
8. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other
VGA-compatible devices.
1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
These connectors are for ATX power supply plugs. The power supply plugs are
designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.
• We recommend that you use an ATX 12V Specication 2.0-compliant power supply unit
(PSU) with a 450W or lower power rating. This PSU type has 24-pin and 4-pin power
plugs.
• If you intend to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin
power plug can provide at least 15 A on +12 V and that the PSU has a power rating of
450W or lower. The system may become unstable or may not boot up if the power is
inadequate.
• DO NOT forget to connect the 4-pin ATX +12V power plug. Otherwise, the system will
not boot up.
• If you are uncertain about the minimum power supply requirement for your system,
refer to the Recommended Power Supply Wattage Calculator at http://support.asus.
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
1.7.2 Internal connectors
9. COM port. This 9-pin COM1 port is for pointing devices or other serial devices.
10. USB 2.0 ports 5 and 6. These two 4-pin Universal Serial Bus (USB) ports are for
USB 2.0 devices.
• This motherboard supports VGA and LVDS display devices. In Single Display mode,
use the hot keys to switch between VGA to LVDS device or vice versa. By default, press
<Ctrl>+<Alt>+<F1> to switch to VGA device and press <Ctrl>+<Alt>+<F3> to switch
to LVDS device. To set your preferred hot keys, double-click from the Windows
notication area and select Hot Keys.
• Before removing the current display device, connect the display device that you want to
use, then press the hot keys to switch to that device.
AT5NM10T-I
AT5NM10T-I ATX power connectors
EATXPWR
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts
ATX12V
PIN 1
+12V DC +12V DC
GND GND