Belkin PM11-UL/RAMA User manual

PM11-EC/RAMA
PM11-EL/RAMA
PM11-UL/RAMA
Rev. A+
Mainboard
Users Manual
55600206

Copyright
This publication contains information that is protected by copyright.
No part of it may be reproduced in any form or by any means or
used to make any transformation/adaptation without the prior
written permission from the copyright holders.
This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any
express or implied warranties of merchantability or fitness for any
particular purpose. The user will assume the entire risk of the use or
the results of the use of this document. Further, the manufacturer
reserves the right to revise this publication and make changes to its
contents at any time, without obligation to notify any person or
entity of such revisions or changes.
© 00 . All Rights Reserved.
Trademarks
Windows® 98, Windows® 98 SE, Windows® ME, Windows® 000,
Windows NT® 4.0 and Windows® XP are registered trademarks of
Microsoft Corporation. Intel® and Pentium® 4 are registered
trademarks of Intel Corporation. VIA is a registered trademark of
VIA Technologies, Inc. Award is a registered trademark of Award
Software, Inc. Other trademarks and registered trademarks of
products appearing in this manual are the properties of their
respective holders.
Caution
To avoid damage to the system:
 Use the correct AC input voltage range.
To reduce the risk of electric shock:
 Unplug the power cord before removing the system chassis
cover for installation or servicing. After installation or servicing,
cover the system chassis before plugging the power cord.

Battery:
 Danger of explosion if battery incorrectly replaced.
 Replace only with the same or equivalent type recommend by
the manufacturer.
 Dispose of used batteries according to the battery
manufacturers instructions.
Joystick or MIDI port:
 Do not use any joystick or MIDI device that requires more than
10A current at 5V DC. There is a risk of fire for devices that
exceed this limit.
FCC and DOC Statement on Class B
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 when the equipment is operated in a residential
installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, 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 the receiver.
 Connect the equipment into 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.
Notice:
1. The changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority
to operate the equipment.
. Shielded interface cables must be used in order to comply with
the emission limits.

Notice
This users manual contains detailed information about the
mainboard. If, in some cases, some information doesnt match those
shown in the multilingual manual, the multilingual manual should
always be regarded as the most updated version. The multilingual
manual is included in the mainboard package.
To view the users manual, insert the CD into a CD-ROM drive. The
autorun screen (Main Board Utility CD) will appear. Click Users
Manual.
Mainboard
This users manual is for the PM11-EC/RAMA, PM11-EL/RAMA and
PM11-UL/RAMA mainboards. The differences between these boards
are shown below.
Onboard Audio (AC97)
Onboard LAN
USB 2.0
Smar t I/O
ü
ü
û
û
PM11-UL/RAMA
PM11-EL/RAMA
ü
ü
ü
ü
ü
û
û
û
PM11-EC/RAMA

Table of Contents
Chapter 1 - Introduction
1.1 Features and Specifications..................................................................................
1. Package Checklist.........................................................................................................
Chapter 2 - Hardware Installation
.1 Mainboard Layout ...................................................................................................
. System Memory...........................................................................................................
.3 Jumper Settings for Clearing CMOS Data........................................
.4 Jumper Settings for Wake-On-PS/ Keyboard/Mouse............
.5 Jumper Settings for Wake-On-USB .0 Keyboard/Mouse..
.6 Por ts and Connectors...........................................................................................
Chapter 3 - Award BIOS Setup Utility
3.1 The Basic Input/Output System.....................................................................
3.1.1 Standard CMOS Features.............................................................
3.1. Advanced BIOS Features..............................................................
3.1.3 Advanced Chipset Features ......................................................
3.1.4 Integrated Peripherals.........................................................................
3.1.5 Power Management Setup............................................................
3.1.6 PnP/PCI Configurations....................................................................
3.1.7 PC Health Status...................................................................................
3.1.8 Frequency/Voltage Control............................................................
3.1.9 Load Fail-Safe Defaults.....................................................................
3.1.10 Load Optimized Defaults..............................................................
3.1.11 Set Supervisor Password...............................................................
3.1.1 Set User Password..............................................................................
3.1.13 Save & Exit Setup.................................................................................
3.1.14 Exit Without Saving..............................................................................
3. Updating the BIOS.....................................................................................................
7
14
56
56
60
64
69
75
81
84
86
88
88
89
89
90
90
90
15
18
0
3
4

Introduction
1
6
103
103
Chapter 4 - Supported Softwares
4.1 Desktop Management Interface.....................................................................
4. Hardware Monitor........................................................................................................
4.3 VIA Service Pack...........................................................................................................
4.4 Audio Drivers and Software Applications.............................................
4.5 Onboard LAN Drivers for Windows.......................................................
4.6 Graphics Drivers............................................................................................................
4.7 VIA USB .0 Driver....................................................................................................
4.8 Winbond Smar t I/O Drivers.............................................................................
4.9 Winbond SmartCard Application..................................................................
4.10 Microsoft DirectX 8.1 Driver.............................................................................
4.11 Drivers and Utilities Installation Notes.....................................................
Appendi A - Using the Suspend to RAM
Function
A.1 Using the Suspend to RAM Function........................................................
Appendi B - System Error Messages
B.1 POST Beep.......................................................................................................................
B. Error Messages..............................................................................................................
Appendi C - Troubleshooting
C.1 Troubleshooting Checklist....................................................................................
91
94
94
96
96
97
97
97
97
98
98
99
105

1
Introduction
7
1.1 Features and Specifications
1.1.1 Features
Chipset
 VIA® P4M 66/VT8 33ACD
Processor
The mainboard is equipped with Socket 478 for installing a Pentium®
4 processor.
 Intel® Pentium® 4 processor (478-pin)
 Supports up to . GHz CPU speed
 400MHz system data bus
System Memory
 Two 184-pin DDR DIMM sockets
 Supports up to GB using PC1600 (DDR 00) / PC 100
(DDR 66) unbuffered DDR SDRAM DIMM, .5V type
 Uses x8/x16 51 MB technology
Chapter 1 - Introduction
DIMMs
2MBx64
4MBx64
8MBx64
Memory Size
16MB
32MB
64MB
DIMMs
16MBx64
32MBx64
64MBx64
Memory Size
128MB
256MB
512MB

Introduction
1
8
Expansion Slots
The mainboard is equipped with 1 universal AGP slot and 3 PCI
slots.
AGP is an interface designed to support high performance 3D
graphics cards. It utilizes a dedicated pipeline to access system
memory for texturing, z-buffering and alpha blending. The universal
AGP slot supports AGP x with up to 533MB/sec. bandwidth and
AGP 4x with up to 1066MB/sec. bandwidth for 3D graphics
applications. AGP in this mainboard will deliver faster and better
graphics to your PC.
Onboard Audio Features
 Supports Microsoft® DirectSound/DirectSound 3D
 AC97 supported with full duplex, independent sample rate
converter for audio recording and playback
 S/PDIF compressed digital output
Onboard AN Features (PM11-E /RAMA and PM11-U /RAMA
only)
 Uses Realtek RTL8100 fast ethernet controller
 Integrated IEEE 80 .3 10BASE-T and 100BASE-TX compatible
PHY
 3 -bit PCI master interface
 Integrated power management functions
 Full duplex support at both 10 and 100 Mbps
 Supports IEEE 80 .3u auto-negotiation
 Suppor ts wire for management
Onboard Graphics Features
 Full featured Accelerated Graphics Port (AGP) controller
- AGP specification v .0 compliant
- Graphics Address Relocation Table (GART)
 High resolution CRT RGB interface
- 50MHz RAMDAC on chip with Gamma correction
- Horizontal/vertical sync outputs compliant with Monitor Power
Management protocols

1
Introduction
9
 Integrated Savage4 D/3D graphics controller and video
accelerator
- Optimized Shared Memory Architecture (SMA)
- 8/16/3 MB frame buffer using system memory
- Single cycle 1 8-bit 3D architecture
- 8M triangles/second setup engine
- 140M pixels/second tri-linear fill rate
- Next generation 1 8-bit D graphics engine
- High quality DVD video playback
- D/3D resolutions up to 19 0x1440
 3D rendering features
- MPEG- video textures
 D hardware acceleration features
 Motion video architecture
 Full software support
Onboard Integrated Media Reader - Smart I/O (PM11-U /RAMA
only)
 Supports Security Application Smart Card interface
 Supports two most promising compact storage - Memory Stick
interface and Secure Digital Memory Card interface
ATX Double Deck Ports (PC 99 color-coded connectors)
 Two USB .0 ports (PM11-UL/RAMA only)
 Two USB 1.1 ports
 One RJ45 LAN port (PM11-EL/RAMA and PM11-UL/RAMA
only)
 One DB-9 serial port
 One DB-15 VGA port
 One DB- 5 parallel port
 One mini-DIN-6 PS/ mouse port
 One mini-DIN-6 PS/ keyboard port
 Three audio jacks: line-out, line-in and mic-in
Connectors
 One connector for additional external USB .0 ports
(PM11-UL/RAMA only)
 One connector for additional external USB 1.1 ports
 One connector for 1 external serial port

Introduction
1
10
 One connector for an external game/MIDI port
 One connector for external line-out and mic-in jacks
 Two internal audio connectors (AUX-in and CD-in)
 One S/PDIF-out connector
 One connector for IrDA interface
 Two IDE connectors
 One floppy drive interface supports up to two .88MB floppy
drives
 Two ATX power supply connectors
 One Wake-On-LAN connector
 One Wake-On-Ring connector
 CPU fan, chassis fan and chip fan connectors
 1 Smart Card interface (PM11-UL/RAMA only)
 1 Memor y Stick interface (PM11-UL/RAMA only)
 1 Secure Digital Memory Card interface (PM11-UL/RAMA only)
PCI Bus Master IDE Controller
 Two PCI IDE interfaces support up to four IDE devices
 Supports ATA/33, ATA/66, ATA/100 and ATA/133 hard drives
 UDMA Modes 3, 4, 5 and 6 Enhanced IDE (data transfer rate
up to 133MB/sec.)
 Bus mastering reduces CPU utilization during disk transfer
 Supports ATAPI CD-ROM, LS-1 0 and ZIP
IrDA Interface
The mainboard is equipped with an IrDA connector for wireless
connectivity between your computer and peripheral devices.
USB Ports
The mainboard supports USB .0 (PM11-UL/RAMA only) and USB
1.1 ports. USB allows data exchange between your computer and a
wide range of simultaneously accessible external Plug and Play
peripherals.
BIOS
 Award BIOS, Windows® 98/ 000/ME/XP Plug and Play
compatible
 Supports SCSI sequential boot-up
 Flash EPROM for easy BIOS upgrades

1
Introduction
11
 Supports DMI .0 function
 Mbit flash memory
Desktop Management Interface (DMI)
The mainboard comes with a DMI .0 built into the BIOS. The DMI
utility in the BIOS automatically records various information about
your system configuration and stores these information in the DMI
pool, which is a part of the system board's Plug and Play BIOS.
DMI, along with the appropriately networked software, is designed
to make inventory, maintenance and troubleshooting of computer
systems easier. Refer to chapter 4 for instructions on using the DMI
utility.
1.1.2 System Health Monitor Functions
The mainboard is capable of monitoring the following system health
conditions.
 Monitors the temperature of the CPU and system; and overheat
alarm
 Monitors CPU/3.3V/±5V/±1 V/VBAT/5VSB voltages and failure
alarm
 Monitors the fan speed of the CPU fan and chassis fan; and
failure alarm
 Automatic chassis fan on/off control
 Read back capability that displays temperature, voltage and fan
speed
Refer to the PC Health Status section in chapter 3 and the
Hardware Monitor section in chapter 4 for more information.
1.1.3 Intelligence
Automatic Chassis Fan Off
The chassis fan will automatically turn off once the system enters the
Suspend mode.
Dual Function Power Button
Depending on the setting in the Soft-Off By PWRBTN field of the
Power Management Setup, this switch will allow the system to enter
the Soft-Off or Suspend mode.

Introduction
1
12
Wake-On-Ring
This feature allows the system that is in the Suspend mode or Soft
Power Off mode to wake-up/power-on to respond to calls coming
through an internal or external modem. Refer to Wake-On-Ring
Connector in chapter and Resume On LAN/Ring (IRQ/Event
Activity Detect field) in the Power Management Setup section in
chapter 3 for more information.
Important:
If you are using a modem add-in card, the 5VSB power source
of your power supply must support ≥ 720mA
Wake-On- AN
The Wake-On-LAN function allows the network to remotely wake
up a Soft Power Down (Soft-Off) PC. Your LAN card must support
the remote wakeup function. Refer to Wake-On-LAN Connector in
chapter and Resume On LAN/Ring (IRQ/Event Activity Detect
field) in the Power Management Setup section in chapter 3 for more
information.
Important:
The 5VSB power source of your power supply must support
≥ 720mA
Wake-On-PS/2 Keyboard/Mouse
This function allows you to use the PS/ keyboard or PS/ mouse
to wake up the system from the S5 state. Refer to Jumper Settings
for Wake-On-PS/ Keyboard/Mouse in chapter and PS KB
Wakeup Select (IRQ/Event Activity Detect field) in the Power
Management section in chapter 3 for more information.
Important:
 If you forgot the password, you must power-off the system,
unplug the power cord and clear the CMOS data Follow
the steps in the Jumper Settings for Clearing CMOS Data
section in chapter 2
 The 5VSB power source of your power supply must
support ≥ 720mA

1
Introduction
13
Wake-On-USB Keyboard/Mouse
The Wake-On-USB Keyboard/Mouse function allows you to use a
USB keyboard or USB mouse to wake up a system that is in the
S3 (STR - Suspend To RAM) state.
If you are using this function with a device that is connected to the
USB .0 port, you need to configure jumpers. Refer to Jumper
Settings for Wake-On-USB .0 Keyboard/Mouse in chapter . You
also need to enable Resume on PCI Event (IRQ/Event Activity
Detect field) in the Power Management Setup submenu of the
BIOS.
If you are using this function with a device that is connected to the
USB 1.1 port, you do not need to configure any jumpers. You only
need to enable USB Resume from S3 (IRQ/Event Activity Detect
field) in the Power Management Setup submenu of the BIOS. Refer
to chapter 3 for more information.
Important:
 If you are using the Wake-On-USB Keyboard/Mouse
function for 2 USB ports, the 5VSB power source of your
power supply must support ≥ 1 5A
 If you are using the Wake-On-USB Keyboard/Mouse
function for 3 or more USB ports, the 5VSB power source
of your power supply must support ≥ 2A
RTC Timer to Power-on the System
The RTC installed on the mainboard allows your system to auto-
matically power-on on the set date and time. Refer to Resume On-
Alarm (IRQ/Event Activity Detect field) in the Power Management
Setup section in chapter 3 for more information.
ACPI STR
The mainboard is designed to meet the ACPI (Advanced Configura-
tion and Power Interface) specification. ACPI has energy saving fea-
tures that enables PCs to implement Power Management and Plug-
and-Play with operating systems that support OS Direct Power
Management. Currently, only Windows® 98/ 000/ME/XP supports
the ACPI function. ACPI when enabled in the Power Management
Setup will allow you to use the Suspend to RAM function.

Introduction
1
14
With the Suspend to RAM function enabled, you can power-off the
system at once by pressing the power button or selecting Standby
when you shut down Windows® 98/ 000/ME/XP without having to
go through the sometimes tiresome process of closing files,
applications and operating system. This is because the system is
capable of storing all programs and data files during the entire
operating session into RAM (Random Access Memory) when it
powers-off. The operating session will resume exactly where you left
off the next time you power-on the system. Refer to Using the
Suspend to RAM Function in appendix A for more information.
Important:
The 5VSB power source of your power supply must support
≥ 1A
AC Power Failure Recovery
When power returns after an AC power failure, you may choose to
either power-on the system manually, let the system power-on
automatically or return to the state where you left off before power
failure occurs. Refer to PWR Lost Resume State in the Power
Management Setup section in chapter 3 for more information.
Virus Protection
Most viruses today destroy data stored in hard drives. The
mainboard is designed to protect the boot sector and partition
table of your hard disk drive.
1.2 Package Checklist
The mainboard package contains the following items:
þThe mainboard
þA users manual
þOne card-edge bracket mounted with a serial port and game/
MIDI port
þOne IDE cable for ATA/33, ATA/66, ATA/100 or ATA/133 IDE
drives
þOne 34-pin floppy disk drive cable
þOne Main Board Utility CD
If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

2
Hardware Installation
15
2.1 Mainboard Layout
Chapter 2 - Hardware Installation
PM11-EC/RAMA
(Supports onboard audio)
VIA
P4M266
Socket 478
VIA
VT8233ACD
KB
Mouse
J2 Wake-On-PS/2 KB/Mouse (JP1)
COM 1 (J1)
Parallel (J4)
VGA (CN1)
COM 2 (J9)
CN2
Line-out
Line-in
Mic-in
Game/MIDI
(J8)
AUX-in
(J7)
CD-in
(J6)
AC’97
VT
1612A
Front
audio (J3)
CN3
S/PDIF-out
(J5)
Winbond
W83697HF
Chip fan (J11)
IrDA (J10)
Wake-On-LAN (J7)
BIOS
Wake-On-Ring (J16)
USB 1.1 (J17)
Clear CMOS
(JP2)
RESET
SPEAKER HD-LED
J21
G-SW G-LED PWR-LED
ATX-SW
Chassis
fan (J28)
FDD
(J27)
ATX p ow er
(J26)
CPU fan
(J18)
AGP Slot
PCI Slot 1
PCI Slot 2
PCI Slot 3
+12V power
(ATXP1)
Battery
DDR SDRAM
DIMM 1
DDR SDRAM
DIMM 2
USB 1.1
USB 1.1
IDE 2
(J23)
IDE 1
(J19)
Mouse
(Green)
KB
(Purple) COM 1
Parallel
(Burgundy)
Line-In
(Light Blue)
Line-Out
(Lime)
Mic-In
(Pink)
(Teal/Turquoise) VGA
(Blue) USB 1.1
(Black)
Square denotes pin 1
USB 1.1
(Black)
PCI Standby Power LED
DIMM Standby
Power LED

2
16
Hardware Installation
PM11-EL/RAMA
(Supports onboard audio and onboard LAN)
VIA
P4M266
Socket 478
VIA
VT8233ACD
KB
Mouse
J2 Wake-On-PS/2 KB/Mouse (JP1)
COM 1 (J1)
Parallel (J4)
VGA (CN1)
COM 2 (J9)
Line-out
Line-in
Mic-in
Game/MIDI
(J8)
AUX-in
(J7)
CD-in
(J6)
AC’97
VT
1612A
Front
audio (J3)
CN3
S/PDIF-out
(J5)
Winbond
W83697HF Chip fan (J11)
IrDA (J10)
Wake-On-LAN (J7)
BIOS
Wake-On-Ring (J16)
USB 1.1 (J17)
Clear CMOS
(JP2)
RESET
SPEAKER HD-LED
J21
G-SW G-LED PWR-LED
ATX-SW
Chassis
fan (J28)
FDD
(J27)
ATX p ower
(J26)
CPU fan
(J18)
AGP Slot
PCI Slot 1
PCI Slot 2
PCI Slot 3
+12V power
(ATXP1)
Battery
DDR SDRAM
DIMM 1
DDR SDRAM
DIMM 2
IDE 2
(J23)
IDE 1
(J19)
LAN
USB 1.1
CN2
USB 1.1
Realtek
RTL8100
Square denotes pin 1
Mouse
(Green)
KB
(Purple)
COM 1
Parallel
(Burgundy)
Line-In
(Light Blue)
Line-Out
(Lime)
Mic-In
(Pink)
(Teal/Turquoise)
VGA
(Blue) 2 USB 1.1
(Black)
RJ45
LAN
PCI Standby Power LED
DIMM Standby
Power LED

2
Hardware Installation
17
Note:
The illustrations on the following pages are based on the PM11-UL/
AMA mainboard, which is the board that supports onboard audio,
onboard LAN, USB 2.0 and Smart I/O.
PM11-UL/RAMA
(Supports onboard audio, onboard LAN, USB 2.0 and Smart I/O)
VIA
P4M266
Socket 478
VIA
VT8233ACD
KB
Mouse
J2 Wake-On-PS/2 KB/Mouse (JP1)
COM 1 (J1)
Parallel (J4)
VGA (CN1)
COM 2 (J9)
JUSB1
USB 2.0
USB 2.0
LAN
USB 1.1
CN2
USB 1.1
Line-out
Line-in
Mic-in
Game/MIDI
(J8)
AUX-in
(J7)
CD-in
(J6)
AC’97
VT
1612A
Front
audio (J3)
CN3
S/PDIF-out
(J5)
Realtek
RTL8100
Winbond
W83697HF Chip fan (J11)
IrDA (J10)
VIA
VT6202 USB 2.0
(J12)
J14
J13
Wake-On-USB 2.0 KB/Mouse
(J13 and J14) Wake-On-
LAN (J7)
BIOS
Wake-On-
Ring (J16)
USB 1.1 (J17)
Clear CMOS
(JP2)
RESET
SPEAKER HD-LED
J21
G-SW G-LED PWR-LED
ATX-SW
W83L518D
SD (J20) MS
(J24)
SC
(J25)
Chassis
fan (J28)
FDD
(J27)
ATX p ower
(J26)
CPU fan
(J18)
AGP Slot
PCI Slot 1
PCI Slot 2
PCI Slot 3
+12V power
(ATXP1)
Battery
IDE 2
(J23)
IDE 1
(J19)
Square denotes pin 1
2 USB 2.0
(Black)
Mouse
(Green)
KB
(Purple)
COM 1
Parallel
(Burgundy)
Line-In
(Light Blue)
Line-Out
(Lime)
Mic-In
(Pink)
(Teal/Turquoise)
VGA
(Blue) 2 USB 1.1
(Black)
RJ45
LAN
DDR SDRAM
DIMM 1
DDR SDRAM
DIMM 2
PCI Standby Power LED
DIMM Standby
Power LED

2
18
Hardware Installation
2.2 System Memory
Warning:
Electrostatic discharge (ESD) can damage your mainboard, processor,
disk drives, add-in boards, and other components. Perform the
upgrade instruction procedures described at an ESD workstation only.
If such a station is not available, you can provide some ESD
protection by wearing an antistatic wrist strap and attaching it to a
metal part of the system chassis. If a wrist strap is unavailable,
establish and maintain contact with the system chassis throughout
any procedures requiring ESD protection.
The mainboard is equipped with two 184-pin DDR SDRAM DIMM
(Dual In-line Memory Module sockets that suppor t 2.5V DDR
SDRAM DIMM. Double Data Rate SDRAM (DDR SDRAM is a
type of SDRAM that doubles the data rate through reading and
writing at both the rising and falling edge of each clock. This
effectively doubles the speed of operation therefore doubling the
speed of data transfer.
Refer to chapter 1 (System Memory section for detailed
specification of the memory supported by the mainboard.
DDR SDRAM
DIMM 1
DDR SDRAM
DIMM 2

2
Hardware Installation
19
1. Pull the tabs which are at the ends of the socket to the side.
2. Position the DIMM above the socket with the notch in the
module aligned with the key on the socket.
3. Seat the module vertically into the socket. Make sure it is
completely seated. The tabs will hold the DIMM in place.
2.2.1 Installing the DIM Module
A DIM module simply snaps into a DIMM socket on the mainboard.
Pin 1 of the DIM module must correspond with pin 1 of the socket.
Pin 1
Notch
Key
Tab Tab

2
20
Hardware Installation
2.3 Jumper Settings for Clearing CMOS Data
Clear CMOS Data - Jumper JP
If you encounter the following,
a) CMOS data becomes corrupted.
b) You forgot the keyboard, supervisor or user password.
c) You are unable to boot-up the computer system because the
processors ratio/clock was incorrectly set in the BIOS.
you can reconfigure the system with the default values stored in the
ROM BIOS.
To load the default values stored in the ROM BIOS, please follow
the steps below.
1. Power-off the system and unplug the power cord.
2. Set JP2 pins 2 and 3 to On. Wait for a few seconds and set JP2
back to its default setting, pins 1 and 2 On.
2-3 On:
Clear CMOS Data
1-2 On: Normal
(default
1
2
3
Clear
CMOS (JP2)
3
2
1
3
2
1