AXIOMTEK CEM820 User Manual

CEM820 Series

®

Intel

Pentium® M/Celeron® M

COM Express™ Type-II Module

User’s Manual

Disclaimers

This manual has been carefully checked and believed to contain
accurate information. AXIOMTEK Co., Ltd. assumes no responsibility
for any infringements of patents or any third party’s rights, and any
liability arising from such use.

AXIOMTEK does not warrant or assume any legal liability or
responsibility for the accuracy, completeness or usefulness of any
information in this document. AXIOMTEK does not make any
commitment to update the information in this manual.

AXIOMTEK reserves the right to change or revise this document
and/or product at any time without notice.

No part of this document may be reproduced, stored in a retrieval
system, or transmitted, in any form or by any means, electronic,
mechanical, photocopying, recording, or otherwise, without the prior
written permission of AXIOMTEK Co., Ltd.

CAUTION

If you replace wrong batteries, it causes the danger of explosion. It is
recommended by the manufacturer that you follow the manufacturer’s
instructions to only replace the same or equivalent type of battery,
and dispose of used ones.

©Copyright 2008 AXIOMTEK Co., Ltd.

All Rights Reserved
January 2008, Version A1
Printed in Taiwan

ii

ESD Precautions

Computer boards have integrated circuits sensitive to static electricity.
To prevent chipsets from electrostatic discharge damage, please take
care of the following jobs with precautions:

 Do not remove boards or integrated circuits from their anti-static

packaging until you are ready to install them.

 Before holding the board or integrated circuit, touch an unpainted

portion of the system unit chassis for a few seconds. It
discharges static electricity from your body.

 Wear a wrist-grounding strap, available from most electronic

component stores, when handling boards and components.

Trademarks Acknowledgments

AXIOMTEK is a trademark of AXIOMTEK Co., Ltd.
Windows

Phoenix & AWARD are trademarks of Phoenix Technology Ltd.
IBM, PC/AT, PS/2, VGA are trademarks of International Business
Machines Corporation.

Intel
Other brand names and trademarks are the properties and registered
brands of their respective owners.

®

is a trademark of Microsoft Corporation.

®

and Pentium® are trademarks of Intel Corporation.

iii

Table of Contents

Disclaimers........................................................................................................... ii

ESD Precautions ................................................................................................. iii

Chapter 1 Introduction.................................................................... 1

1.1 Specifications.......................................................................................... 2

1.2 Utilities Supported................................................................................... 3

Chapter 2 Board Layout and Pin Assignments............................ 5

2.1 Board Dimensions and Fixing Holes....................................................... 5

2.2 Board Layout........................................................................................... 7

2.3 Jumper Settings ...................................................................................... 9

　 CPU Clock Select Jumper (SW1)............................................................ 9

2.4 Connectors............................................................................................ 10

　 Pin Assignment -- COM Express

Chapter 3 Hardware Description.................................................. 17

3.1 Microprocessors.................................................................................... 17

3.2 BIOS......................................................................................................17

3.3 System Memory..................................................................................... 17

3.4 I/O Port Address Map (With CEB94000 under WinXP)......................... 18

3.5 Interrupt Controller (With CEB94000 under WinXP)............................. 20

3.6 Memory Map (With CEB94000 under WinXP)...................................... 21

Chapter 4 Award BIOS Utility....................................................... 23

4.1 Entering Setup....................................................................................... 23

4.2 Control Keys..........................................................................................24

4.3 Getting Help .......................................................................................... 24

4.4 The Main Menu ..................................................................................... 25

4.5 Standard CMOS Setup Menu................................................................ 26

4.6 Advanced BIOS Features...................................................................... 29

4.7 Advanced Chipset Features.................................................................. 33

4.8 Integrated Peripherals........................................................................... 36

4.9 Power Management Setup.................................................................... 42

4.10 PnP/PCI Configuration Setup................................................................ 45

4.11 PC Health Status................................................................................... 47

4.12 Frequency/Voltage Control.................................................................... 48

4.13 Load Optimized Defaults....................................................................... 49

4.14 Set Supervisor/User Password ............................................................. 50

4.15 Save & Exit Setup ................................................................................. 51

4.16 Exit Without Saving............................................................................... 52

TM

Connector (S1, S2)........................ 11

Appendix Watchdog Tiimer.......................................................... 53

iv

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

C h a p t e r 1

Introduction

The CEM820 is a new and practically finest COM Express
Module in the market with embedded Socket 478 and BGA type for

®

Pentium® M and Celeron

Intel
and integrates Intel
910GMLE & ICH6M (for BGA type).

This powerful module supports excellent Multiple I/O, LVDS LCD,
Fast/Gigabit Ethernet, AC'97/HD digital Audio, one PATA -100, two
SATA and eight USB 2.0 ports to make all in one single module as
computing engine. It provides one PCI Express X16 for graphics or
SDVO, four PCI Express X1, and four 32-bit/33MHz PCI master for
expansion purpose.

It can achieve the best stability and reliability that makes your system
perform the most endurable operation in any critical environments.
The built-in Watchdog Timer has enhanced the system reliability that
achieves a unique feature to distinguish itself from other boards.

®

chipsets 915GME & ICH6M (for socket 478) and

®

M processors at 400/533 MHz FSB,

TM

Type-II

Introduction

1

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

1.1 Specifications

z CPU: Socket 478 and BGA type for Intel

Celeron

z System Chipset:

 Intel

 Intel
z CPU Frequency: 400/533 MHz FSB
z BIOS

 Phoenix-Award BIOS, Y2K compliant

 4Mbit Flash, DMI, Plug and Play

 SmartView for multiple LCD type selection, display

®

M processors

®

915GME & ICH6M for Socket 478

®

910GMLE & ICH6M for BGA type

mode option and application extension features

 “Load Optimized Default” to backup customized Setting in

the BIOS flash chip to prevent from CMOS battery fail

z System Memory

 Two x 200-pin DDR2 400/533 MHz SO-DIMM sockets

 Maximum to 2GB DDR2 memory

 Double deck type (910GMLE supports 400MHz DDR2)

®

Pentiumm® and

z L2 Cache: integrated in CPU
z USB Interface

 Eight USB ports comply with USB Spec. Rev. 2.0

z Expansion Interface:

 One PCI Express X16 interface for SDVO ADD2+ Card as

default (PCI Express X16 for discrete graphics is optional
with on-board LVDS function removal)

 Four PCI Express X1 interface

 Four 32-bit/33MHz PCI master
z Ethernet:

 100/1000 Base-T via RTL8111B (Share one PCI Express

X1 interface)

2

Introduction

CEM820 Intel®Pentium®M/Celeron® COM Express

z Audio:

 AC'97/HD digital Audio interface
z Power Management:

 ACPI (Advanced Configuration and Power Interface)

TM

NOTE: All Images and specifications are subject to change

without notice.

1.2 Utilities Supported

z Chipset Driver
z VGA Driver
z Ethernet Driver
z Audio Driver

Type-II Module

Introduction

3

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

MEMO

4

Introduction

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

C h a p t e r 2

Board Layout and Pin Assignments

2.1 Board Dimensions and Fixing Holes

Jumpers and Connectors

Component Side

5

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

6

Solder Side

Jumpers and Connectors

CEM820 Intel®Pentium®M/Celeron® COM Express

2.2 Board Layout

TM

Type-II Module

Jumpers and Connectors

Component Side

7

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

8

Solder Side

Jumpers and Connectors

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

2.3 Jumper Settings

Proper jumer settings configure the CEM820 to meet your application
purpose. We are herewith listing a summary table of all jumpers and
default settings for onboard devices, respectively.

Here is a list of jumper settings：

Jumper Default Setting Jumper Setting

SW1 CPU Clock Select : Auto

<Only Socket Version>

 CPU Clock Select Jumper (SW1)

Use this jumper to select the CPU clock.

Description Function Jumper Setting

Short 1-2

CPU Clock Select

Auto (Default)

100 MHz

133 MHz

Jumpers and Connectors

SW1

SW1

SW1

9

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

2.4 Connectors

Connectors connect the CPU card with other parts of the system.
Loose or improper connection might cause problems. Make sure all
connectors are properly and firmly connected. Here is a summary table
shows you all connectors on the CEM820 Series.

Connectors Label

DDRII SODIMM Connector CN1
DDRII SODIMM Connector CN2

COM ExpressTM Connector
COM ExpressTM Connector

S1
S2

10

Jumpers and Connectors

CEM820 Intel®Pentium®M/Celeron® COM Express

 Pin Assignment -- COM Express

TM

S2)

TM

Type-II Module

Connector (S1,

Pin Signal Pin Signal Pin Signal Pin Signal

A1 GND (FIXED) B1 GND (FIXED) C1 GND (FIXED) D1 GND (FIXED)

A2 GBE0_MDI3- B2 GBE0_ACT# C2 IDE_D7 D2 IDE_D5

A3 GBE0_MDI3+ B3

GBE0_LINK10

A4

0#
GBE0_LINK10

A5

00#

A6 GBE0_MDI2- B6 LPC_AD2 C6 IDE_D8 D6 IDE_D4

A7 GBE0_MDI2+ B7 LPC_AD3 C7 IDE_D9 D7 IDE_D0

A8 N.C B8 LPC_DRQ0# C8 IDE_D2 D8 IDE_REQ

A9 GBE0_MDI1- B9 LPC_DRQ1# C9 IDE_D13 D9 IDE_IOW#

A10 GBE0_MDI1+ B10 LPC_CLK C10 IDE_D1 D10 IDE_ACK#

A11 GND (FIXED) B11 GND (FIXED) C11 GND (FIXED) D11 GND (FIXED)

A12 GBE0_MDI0- B12 PWRBTN# C12 IDE_D14 D12 IDE_IRQ

LPC_FRAME
#

B4 LPC_AD0 C4 IDE_D3 D4 IDE_D11

B5 LPC_AD1 C5 IDE_D15 D5 IDE_D12

C3 IDE_D6 D3 IDE_D10

A13 GBE0_MDI0+ B13 SMB_CK C13 IDE_IORDY D13 IDE_A0

A14 GBE0_CTREF B14 SMB_DAT C14 IDE_IOR# D14 IDE_A1

A15 SUS_S3# B15

Jumpers and Connectors

SMB_ALERT
#

C15 PCI_PME# D15 IDE_A2

11

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

Pin Signal Pin Signal Pin Signal Pin Signal

A16 SATA0_TX+ B16 SATA1_TX+ C16 PCI_GNT2# D16 IDE_CS1#

A17 SATA0_TX- B17 SATA1_TX- C17 PCI_REQ2# D17 IDE_CS3#

A18 SUS_S4# B18 SUS_STAT# C18 PCI_GNT1# D18 IDE_RESET#

A19 SATA0_RX+ B19 SATA1_RX+ C19 PCI_REQ1# D19 PCI_GNT3#

A20 SATA0_RX- B20 SATA1_RX- C20 PCI_GNT0# D20 PCI_REQ3#

A21 GND (FIXED) B21 GND (FIXED) C21 GND (FIXED) D21 GND (FIXED)

A22 N.C B22 N.C C22 PCI_REQ0# D22 PCI_AD1

A23 N.C B23 N.C C23 PCI_RESET# D23 PCI_AD3

A24 SUS_S5# B24 N.C C24 PCI_AD0 D24 PCI_AD5

A25 N.C B25 N.C C25 PCI_AD2 D25 PCI_AD7

A26 N.C B26 N.C C26 PCI_AD4 D26 PCI_C/BE0#

A27 BATLOW# B27 WDT C27 PCI_AD6 D27 PCI_AD9

A28 ATA_ACT# B28 AC_SDIN2 C28 PCI_AD8 D28 PCI_AD11

A29 AC_SYNC B29 AC_SDIN1 C29 PCI_AD10 D29 PCI_AD13

A30 AC_RST# B30 AC_SDIN0 C30 PCI_AD12 D30 PCI_AD15

A31 GND (FIXED) B31 GND (FIXED) C31 GND (FIXED) D31 GND (FIXED)

A32 AC_BITCLK B32 SPKR C32 PCI_AD14 D32 PCI_PAR

A33 AC_SDOUT B33 I2C_CK C33 PCI_C/BE1# D33 PCI_SERR#

A34 N.C B34 I2C_DAT C34 PCI_PERR# D34 PCI_STOP#

A35 THRMTRIP# B35 THRM# C35 PCI_LOCK# D35 PCI_TRDY#

A36 USB6- B36 USB7- C36

A37 USB6+ B37 USB7+ C37 PCI_IRDY# D37 PCI_AD16

12

PCI_DEVSEL
#

D36 PCI_FRAME#

Jumpers and Connectors

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

Pin Signal Pin Signal Pin Signal Pin Signal

USB_6_7_OC

A38

#

A39 USB4- B39 USB5- C39 PCI_AD17 D39 PCI_AD20

A40 USB4+ B40 USB5+ C40 PCI_AD19 D40 PCI_AD22

A41 GND (FIXED) B41 GND (FIXED) C41 GND (FIXED) D41 GND (FIXED)

A42 USB2- B42 USB3- C42 PCI_AD21 D42 PCI_AD24

A43 USB2+ B43 USB3+ C43 PCI_AD23 D43 PCI_AD26

USB_2_3_OC

A44

#

A45 USB0- B45 USB1- C45 PCI_AD25 D45 PCI_AD30

A46 USB0+ B46 USB1+ C46 PCI_AD27 D46 PCI_IRQC#

A47 VCC_RTC B47

EXCD0_PERS

A48

T#
EXCD0_CPPE

A49

#

A50 LPC_SERIRQ B50 CB_RESET# C50 PCI_IRQB# D50 PCI_CLK

USB_4_5_O

B38

C#

USB_0_1_O

B44

C#

EXCD1_PER
ST#

B48 N.C C48 PCI_AD31 D48 PCI_CLKRUN#

SYS_RESET

B49

#

C38 PCI_C/BE2# D38 PCI_AD18

C44 PCI_C/BE3# D44 PCI_AD28

C47 PCI_AD29 D47 PCI_IRQD#

C49 PCI_IRQA# D49 N.C

A51 GND (FIXED) B51 GND (FIXED) C51 GND (FIXED) D51 GND (FIXED)

A52 N.C. B52 N.C. C52 PEG_RX0+ D52 PEG_TX0+

A53 N.C. B53 N.C. C53 PEG_RX0- D53 PEG_TX0-

A54 GPI0 B54 GPO1 C54 N.C D54

A55 N.C B55 N.C C55 PEG_RX1+ D55 PEG_TX1+

A56 N.C B56 N.C C56 PEG_RX1- D56 PEG_TX1-

A57 GND B57 GPO2 C57 N.C D57 N.C

A58 N.C B58 N.C C58 PEG_RX2+ D58 PEG_TX2+

A59 N.C B59 N.C C59 PEG_RX2- D59 PEG_TX2-

Jumpers and Connectors

PEG_LANE_R
V#

13

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

Pin Signal Pin Signal Pin Signal Pin Signal

A60 GND (FIXED) B60 GND (FIXED) C60 GND (FIXED) D60 GND (FIXED)

A61 PCIE_TX3+ B61 PCIE_RX3+ C61 PEG_RX3+ D61 PEG_TX3+

A62 PCIE_TX3- B62 PCIE_RX3- C62 PEG_RX3- D62 PEG_TX3-

A63 GPI1 B63 GPO3 C63 RSVD D63 RSVD

A64 PCIE_TX2+ B64 PCIE_RX2+ C64 RSVD D64 RSVD

A65 PCIE_TX2- B65 PCIE_RX2- C65 PEG_RX4+ D65 PEG_TX4+

A66 GND B66 WAKE0# C66 PEG_RE4- D66 PEG_TX4-

A67 GPI2 B67 WAKE1# C67 RSVD D67 GND

A68 PCIE_TX1+ B68 PCIE_RX1+ C68 PEG_RX5+ D68 PEG_TX5+

A69 PCIE_TX1- B69 PCIE_RX1- C69 PEG_RX5- D69 PEG_TX5-

A70 GND(FIXED) B70 GND(FIXED) C70 GND(FIXED) D70 GND(FIXED)

A71 LVDS_A0+ B71 LVDS_B0+ C71 PEG_RX6+ D71 PEG_TX6+

A72 LVDS_A0- B72 LVDS_B0- C72 PEG_RX6- D72 PEG_TX6-

A73 LVDS_A1+ B73 LVDS_B1+ C73 SDVO_DATA D73 SDVO_CLK

A74 LVDS_A1- B74 LVDS_B1- C74 PEG_RX7+ D74 PEG_TX7+

A75 LVDS_A2+ B75 LVDS_B2+ C75 PEG_RX7- D75 PEG_TX7-

A76 LVDS_A2- B76 LVDS_B2- C76 GND D76 GND

LVDS_VDD_E

A77

N

A78 N.C B78 N.C C78 PEG_RX8+ D78 PEG_TX8+

A79 N.C B79

A80 GND(FIXED) B80 GND(FIXED) C80 GND(FIXED) D80 GND(FIXED)

A81 LVDS_A_CK+ B81

14

B77 N.C C77 RSVD D77 IDE_CBLID#

LVDS_BKLT
_EN

LVDS_B_CK
+

C79 PEG_RX8- D79 PEG_TX8-

C81 PEG_RX9+ D81 PEG_TX9+

Jumpers and Connectors

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

Pin Signal Pin Signal Pin Signal Pin Signal

A82 LVDS_A_CK- B82 LVDS_B_CK- C82 PEG_RX9- D82 PEG_TX9-

A83 LVDS_I2C_CK B83

LVDS_I2C_DA

A84

T

A85 GPI3 B85

A86 KBD_RST# B86

KBD_A20GAT

A87

E
PCIE0_CK_RE

A88

F+
PCIE0_CK_RE

A89

F-

A90 GND (FIXED) B90 GND (FIXED) C90 GND (FIXED) D90 GND (FIXED)

A91 RSVD B91 VGA_GRN C91 PEG_RX12+ D91 PEG_TX12+

A92 RSVD B92 VGA_BLU C92 PEG_RX12- D92 PEG_TX12-

LVDS_BKLT
_CTRL

VCC_5V_SB

B84

Y
VCC_5V_SB

Y
VCC_5V_SB

Y
VCC_5V_SB

B87

Y

B88 RSVD C88 PEG_RX11+ D88 PEG_TX11+

B89 VGA_RED C89 PEG_RX11- D89 PEG_TX11-

C83 RSVD D83 RSVD

C84 GND D84 GND

C85 PEG_RX10+ D85 PEG_TX10+

C86 PEG_RX10- D86 PEG_TX10-

C87 GND D87 GND

A93 GPO0 B93 VGA_HSYNC C93 GND D93 GND

A94 RSVD B94 VGA_VSYNC C94 PEG_RX13+ D94 PEG_TX13+

A95 RSVD B95 VGA_I2C_CK C95 PEG_RX13- D95 PEG_TX13-

A96 GND B96

A97 VCC_12V B97 N.C C97 RSVD D97 N.C

A98 VCC_12V B98 N.C C98 PEG_RX14+ D98 PEG_TX14+

A99 VCC_12V B99 N.C C99 PEG_RX14- D99 PEG_TX14-

A100 GND (FIXED) B100 GND (FIXED) C100 GND (FIXED) D100 GND (FIXED)

A101 VCC_12V B101 VCC_12V C101 PEG_RX15+ D101 PEG_TX15+

A102 VCC_12V B102 VCC_12V C102 PEG_RX15- D102 PEG_TX15-

VGA_I2C_DA
T

C96 GND D96 GND

Jumpers and Connectors

15

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

Pin Signal Pin Signal Pin Signal Pin Signal

A103 VCC_12V B103 VCC_12V C103 GND D103 GND

A104 VCC_12V B104 VCC_12V C104 VCC_12V D104 VCC_12V

A105 VCC_12V B105 VCC_12V C105 VCC_12V D105 VCC_12V

A106 VCC_12V B106 VCC_12V C106 VCC_12V D106 VCC_12V

A107 VCC_12V B107 VCC_12V C107 VCC_12V D107 VCC_12V

A108 VCC_12V B108 VCC_12V C108 VCC_12V D108 VCC_12V

A109 VCC_12V B109 VCC_12V C109 VCC_12V D109 VCC_12V

GND

A110

(FIXED)

-- End of COM ExpressTM Connectors (S1, S2) Pin Assignment Table --

B110 GND (FIXED) C110 GND (FIXED) D110 GND (FIXED)

16

Jumpers and Connectors

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

C h a p t e r 3

Hardware Description

3.1 Microprocessors

The CEM820 Series supports Intel® Pentium® M and Celeron
processors, which make your system operated under Windows
2000/XP and Linux environments. The system performance depends
on the microprocessor. Make sure your installed microprocessor with
all correct settings that prevents the CPU from damages.

3.2 BIOS

The CEM820 Series uses Award Plug and Play BIOS with a single
4Mbit Flash EPROM.

3.3 System Memory

The CEM820 Series industrial CPU card supports two 200-pin DDR2
400/533 MHz SO-DIMM sockets for a maximum memory of 2GB DDR2
SDRAMs. The memory module can come in sizes of 64MB, 128MB,
256MB, 512MB, 1GB and 2GB.

®

M

Hardware Description

17

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

3.4 I/O Port Address Map (With CEB94000
under WinXP)

Address Devices

18

Hardware Description

CEM820 Intel®Pentium®M/Celeron® COM Express

Address Devices

TM

Type-II Module

Hardware Description

19

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

3.5 Interrupt Controller (With CEB94000
under WinXP)

IRQ Parity check error

20

Hardware Description

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

3.6 Memory Map (With CEB94000 under

WinXP)

Address Devices

Hardware Description

21

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

MEMO

22

Hardware Description

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

C h a p t e r 4

Award BIOS Utility

The BIOS of CEM820 is porting with Winbond Super I/O W83627HG. If
the Baseboard designer use a different Super I/O chip, the BIOS needs
to be customized. The Phoenix-Award BIOS provides users with a
built-in Setup program to modify basic system configuration. All
configured parameters are stored in a battery-backed-up RAM (CMOS
RAM) to save the Setup information whenever the power is turned off.

4.1 Entering Setup

There are two ways to enter the Setup program. You may either turn
ON the computer and press <Del> immediately, or press the <Del>
and/or <Ctrl>, <Alt>, and <Esc> keys simultaneously when the
following message appears at the bottom of the screen during POST
(Power on Self Test).

TO ENTER SETUP PRESS DEL KEY

If the message disappears before you respond and you still want to
enter Setup, please restart the system to try it again. Turning the
system power OFF and ON, pressing the “RESET” button on the
system case or simultaneously pressing <Ctrl>, <Alt>, and <Del> keys
can restart the system. If you do not press keys at the right time and
the system doesn’t boot, an error message will pop out to prompt you
the following information:

PRESS <F1> TO CONTINUE, <CTRL-ALT-ESC> OR <DEL> TO ENTER SETUP

Award BIOS Utility

23

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

4.2 Control Keys

Up arrow
Down arrow
Left arrow
Right arrow

Esc key

PgUp/“+” key
PgDn/“−“ key

F1 key

(Shift) F2 key
F3 key

F4 key
F5 key

F6 key

F7 key
F8 key

F9 key
F10 key

Move cursor to the previous item
Move cursor to the next item
Move cursor to the item on the left hand
Move to the item in the right hand
Main Menu -- Quit and delete changes into CMOS

Status Page Setup Menu and Option Page Setup
Menu -- Exit current page and return to Main Menu
Increase the numeric value or make changes
Decrease the numeric value or make changes
General help, only for Status Page Setup Menu and
Option Page Setup Menu
Change color from total 16 colors. F2 to select color
forward, (Shift) F2 to select color backward
Reserved
Reserved
Restore the previous CMOS value from CMOS, only
for Option Page Setup Menu
Load the default CMOS value from BIOS default table,
only for Option Page Setup Menu
Load the Setup default, only for Option Page Setup
Menu
Reserved
Reserved
Save all the CMOS changes, only for Main Menu

4.3 Getting Help

z Main Menu

The online description of the highlighted setup function is displayed
at the bottom of the screen.

z Status Page Setup Menu/Option Page Setup Menu

Press <F1> to pop out a small Help window that provides the
description of using appropriate keys and possible selections for
highlighted items. Press <F1> or <Esc> to exit the Help Window.

24

Award BIOS Utility

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

4.4 The Main Menu

Once you enter the Award BIOS CMOS Setup Utility, the Main Menu
appears on the screen. In the Main Menu, there are several Setup
functions and a couple of Exit options for your selection. Use arrow
keys to select the Setup Page you intend to configure then press
<Enter> to accept or enter its sub-menu.

NOTE If your computer can not boot after making and saving

system changes with Setup, the Award BIOS will reset
your system to the CMOS default settings via its built-in
override feature.

It is strongly recommended that you should avoid changing the
chipset’s defaults. Both Award and your system manufacturer have
carefully set up these defaults that provide the best performance and
reliability.

Award BIOS Utility

25

CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

4.5 Standard CMOS Setup Menu

The Standard CMOS Setup Menu displays basic information about
your system. Use arrow keys to highlight each item, and use <PgUp>
or <PgDn> key to select the value you want in each item.

z Date

The date format is <day>, <date> <month> <year>. Press <F3> to
show the calendar.

day

date
month

year

z Time

It is determined by the BIOS and read only, from Sunday
to Saturday.
It can be keyed with the numerical/ function key, from 1 to

31.
It is from January to December.
It shows the current year of BIOS.

This item shows current time of your system with the format <hour>
<minute> <second>. The time is calculated based on the 24-hour

26

Award BIOS Utility

CEM820 Intel®Pentium®M/Celeron® COM Express

TM

Type-II Module

military-time clock. For example, 1 p.m. is 13:00:00.

z IDE Channel 0 Master/ IDE Channel 0 Slave/ IDE Channel 1

Master/ IDE Channel 1 Slave

These items identify the types of each IDE channel installed in the
computer. There are 45 predefined types (Type 1 to Type 45) and
2 user’s definable types (Type User) for Enhanced IDE BIOS.
Press <PgUp>/<+> or <PgDn>/<−> to select a numbered hard disk
type, or directly type the number and press <Enter>. Please be
noted your drive’s specifications must match the drive table. The
hard disk will not work properly if you enter improper information. If
your hard disk drive type does not match or is not listed, you can
use Type User to manually define your own drive type.
If selecting Type User, you will be asked to enter related
information in the following items. Directly key in the information
and press <Enter>. This information should be provided in the
documentation from your hard disk vendor or the system
manufacturer.
If the HDD interface controller supports ESDI, select “Type 1”.
If the HDD interface controller supports SCSI, select “None”.
If the HDD interface controller supports CD-ROM, select “None”.

CYLS.
HEADS
PRECOMP

number of cylinders
number of heads
write precom

LANDZONE
SECTORS
MODE

landing zone
number of sectors
HDD access mode

If there is no hard disk drive installed, select NONE and press
<Enter>.

z Dive A type/Drive B type

This item identifies the types of floppy disk drive A or drive B
installed in the computer.

None
360K, 3.5 in

1.2M, 3.5 in
720K, 3.5 in

1.44M, 3.5 in

2.88M, 3.5 in

z Video

No floppy drive installed

3.5 inch PC-type standard drive; 360Kb Mini ITXcity

3.5 inch AT-type high-density drive; 1.2MB Mini
ITXcity

3.5 inch double-sided drive; 720Kb Mini ITXcity

3.5 inch double-sided drive; 1.44MB Mini ITXcity

3.5 inch double-sided drive; 2.88MB Mini ITXcity

Select the display adapter type for your system.

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

z Halt On

This item determines whether the system will halt or not, if an error
is detected while powering up.

No errors

All errors

All, But
Keyboard

All, But
Diskette

All, But
Disk/Key

The system booting will halt on any errors detected.
(default)

Whenever BIOS detects a non-fatal error, the
system will stop and you will be prompted.

The system booting will not stop for a keyboard
error; it will stop for other errors.

The system booting will not stop for a disk error; it
will stop for other errors.

The system booting will not stop for a keyboard or
disk error; it will stop for other errors.

Press <Esc> to return to the Main Menu page.

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4.6 Advanced BIOS Features

This section allows you to configure and improve your system, to set
up some system features according to your preference.

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

z Hard Disk Boot Priority

Scroll to this item and press <Enter> to view the sub menu to
decide the disk boot priority.

Press <Esc> to return to the Advanced BIOS Features page.

z CPU L1 & L2 Cache

These two options speed up memory access. However, it depends
on the CPU/chipset design. The default setting is “Enabled”. CPUs
without built-in internal cache will not provide the “CPU Internal
Cache” item on the menu.

Enabled
Disabled

z CPU L3 Cache

Enable cache
Disable cache

Use this item to enable L3 cache only for the CPUs with such a
function.

z Hyper-Threading Technology

Use this item to enable or disable Hyper-Threading Technology,
which makes a single physical processor perform multi-tasking
function as two logical ones.

z Quick Power On Self Test

This option speeds up Power on Self Test (POST) after you turn on
the system power. If set as Enabled, BIOS will shorten or skip
some check items during POST. The default setting is “Enabled”.

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Enabled
Disabled

Enable Quick POST
Normal POST

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Type-II Module

z First/Second/Third Boot Device

These items let you select the 1

st

, 2nd, and 3rd devices that the
system will search for during its boot-up sequence. The wide range
of selection includes Floppy, LS120, ZIP100, HDD0~3, SCSI, and
CDROM.

z Boot Other Device

This item allows the user to enable or disable the boot device not
listed in the First/Second/Third boot devices option above. The
default setting is “Enabled”.

z Swap Floppy Drive

This item allows you to determine whether to enable Swap Floppy
Drive or not. When enabled, the BIOS swap floppy drive
assignment makes Drive A become Drive B, and vice versa. The
default setting is “Disabled”.

z Boot Up Floppy Seek

During POST, BIOS will determine the floppy disk drive type, 40 or
80 tracks. The 360Kb type is 40 tracks while 720Kb, 1.2MB and

1.44MB are all 80 tracks. The default value is “Enabled”.

BIOS searches for floppy disk drive to determine if it is

Enabled

Disabled

40 or 80 tracks. Please be noted BIOS can not
differentiate 720K, 1.2M or 1.44M drive type as they all
are 80 tracks.

BIOS will not search for the type of floppy disk drive by
track number. There will be no warning message
displayed if the installed drive is 360K.

z Boot Up NumLock Status

Set the the Num Lock status when the system is powered on.

The default value is “On”.

z Gate A20 Option

The default value is “Fast”.

Normal

Award BIOS Utility

The A20 signal is controlled by keyboard controller
or chipset hardware.

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

Fast

z Typematic Rate Setting

Default: Fast. The A20 signal is controlled by Port
92 or chipset specific method.

This item determines the typematic rate of the keyboard. The
default value is “Disabled”.

Enabled

Disabled

z Typematic Rate (Chars/Sec)

Enable typematic rate and typematic delay
programming

Disable typematic rate and typematic delay
programming. The system BIOS will use default value
of these 2 items, controlled by keyboard.

This option refers to character numbers typed per second by the
keyboard. The default value is “6”.

6

8
10
12
15
20
24
30

z

Typematic Delay (Msec)

This option defines how many milliseconds

6 characters per second
8 characters per second
10 characters per second
12 characters per second
15 characters per second
20 characters per second
24 characters per second
30 characters per second

-- End of Typematic Rate Table --

must elapse before a

held-down key begins generating repeat characters. The default
value is “250”.

z Security Option

This item allows you to limit access to the system and Setup, or
just to Setup. The default value is “Setup”.

32

250
500
750
1000

250 msec
500 msec
750 msec
1000 msec

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CEM820 Intel®Pentium®M/Celeron® COM Express

System

Setup

If a wrong password is entered at the prompt, the system
will not boot, the access to Setup will be denied, either.

If a wrong password is entered at the prompt, the system
will boot, but the access to Setup will be denied.

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NOTE To disable the security, select PASSWORD

SETTING at Main Menu and then you will be
asked to enter a password. Do not type anything,
just press <Enter> and it will disable the security.
Once the security is disabled, the system will boot
and you can enter Setup freely.

z APIC Mode

Use this item to enable or disable APIC (Advanced Programmable
Interrupt Controller) mode that provides symmetric multi­processing (SMP) for systems.

z MPS Version Control For OS

This item specifies the version of the Multiprocessor Specification
(MPS). Version 1.4 has extended configuration tables to improve
support for multiple PCI bus configurations and provide future
expandability.

z Small Logo<EPA> Show

Use this item to show the Logo (EPA). The default value is
“Disabled”.

z Optimized Default Select

This item allows you to select which Default Value you want to load.
The default value is “Previous Setup”.

This option allows you to load your system

BIOS Optimized

Previous Setup

configuration with default values. These default
settings are optimized to enable high performance
features.
This option allows you to load your system
configuration with Previous Setup value.

Press <Esc> to return to the Main Menu page.

4.7 Advanced Chipset Features

This section contains completely optimized chipset’s features on the

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

board that you are strongly recommended to leave all items on this
page at their default values unless you are very familiar with the
technical specifications of your system hardware.

z DRAM Timing Selectable

Use this item to increase the timing of the memory. This is related
to the cooling of memory.

z CAS Latency Time

You can select CAS latency time to HCLKs, 3, 4, 5 or Auto. The
board designer should have set up these values in accordance with
the installed DRAM. Do not change these values unless you have
to change the specifications of the installed DRAM or CPU.

z DRAM RAS# to CAS# Delay

When DRAM is refreshed, both rows and columns are addressed
separately. This field lets you insert a timing delay between the
CAS and RAS strobe signals, used when DRAM is written to, read
from, or refreshed.

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z DRAM RAS# Precharge

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The precharge time is the number of cycles it takes for the RAS to
accumulate its charge before DRAM refresh. If insufficient time is
allowed, refresh may be incomplete and the DRAM may fail to
retain data.

z Precharge Delay <tRAS>

The precharge time is the number of cycles it takes for DRAM to
accumulate its charge before refresh.

z System Memory Frequency

This item helps you set main memory frequency. When using an
external graphics card, it can be adjusted to enable the best
performance for your system.

z System BIOS Cacheable

Selecting Enabled allows caching of the system BIOS ROM at
F0000h-FFFFFh, resulting in better system performance. However,
if any program writes to this memory area, a system error may
result. The default value is “Disabled”.

z Video BIOS Cacheable

This item allows you to change the Video BIOS location from ROM
to RAM. Video Shadow will increase the video speed.

z Memory Hole At 15M-16M

This item allows users to enable or disable the 1MB of memory
required by some ISA expansion cards.

*** VGA Setting ***

z PEG/Onchip VGA Control

Use this item to choose the primary display card.

z On-Chip Frame Buffer Size

Use this item to set the VGA frame buffer size.

z DVMT Mode

DVMT (Dynamic Video Memory Technology) helps you select the
video mode.

z DVMT/Fixed Memory Size

DVMT (Dynamic Video Memory Technology) allows you to select a
maximum size of dynamic amount usage of the video memory. The

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

system would configure the video memory dependent on your
application.

z Boot Display

This item is for Intel define ADD card only.

Press <Esc> to return to the Main Menu page.

4.8 Integrated Peripherals

This section allows you to configure your SuperIO Device, IDE
Function and Onboard Device.

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z OnChip IDE Device

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Scroll to this item and press <Enter> to view the sub menu OnChip
IDE Device.

¾ IDE HDD Block Mode

Block mode is also called block transfer, multiple commands,
or multiple sector read/write. If your IDE hard drive supports
block mode (most new drives do), select Enabled for
automatic detection of the optimal number of block
read/writes per sector the drive can support.

¾ IDE DMA transfer access

Automatic data transfer between system memory and IDE
device with minimum CPU intervention. This improves data
throughput and frees CPU to perform other tasks.

¾ On-Chip Primary/Secondary PCI IDE

The integrated peripheral controller contains an IDE
interface with support for two IDE channels. Select Enabled
to activate each channel separately. The default value is

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

“Enabled”.

NOTE Choosing Disabled for these options will

automatically remove the IDE Primary Master/
Slave PIO and/or IDE Secondary Master/Slave
PIO items on the menu.

¾ IDE Master/Slave PIO

The four IDE PIO (Programmed Input/Output) fields let you
set a PIO mode (0-4) for each of the four IDE devices that
the onboard IDE interface supports. Modes 0 to 4 provide
successively increased performance. In Auto mode, the
system automatically determines the best mode for each
device.

¾ IDE Master/Slave UDMA

Select the mode of operation for the IDE drive. Ultra DMA­33/66/100/133 implementation is possible only if your IDE
hard drive supports it and the operating environment
includes a DMA driver. If your hard drive and system
software both support Ultra DMA-33/66/100/133, select Auto
to enable UDMA mode by BIOS.

*** On-Chip Serial ATA Setting ***

z On-Chip Serial ATA

Use this item to enable or disable the built-in on-chip serial ATA.

z PATA IDE Mode

Use this item to set the PATA IDE mode. When set to Primary, P1
and P3 are Secondary; on the other hand, when set to Secondary,
P0 and P2 are Primary.

Press <Esc> to return to the Integrated Peripheral page.

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z Onboard Device

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Scroll to this item and press <Enter> to view the sub menu Onboard
Device.

¾ USB Controller

Enable this item if you are using the USB in the system. You
should disable this item if a higher-level controller is added.

¾ USB 2.0 Controller

Enable this item if you are using the EHCI (USB2.0)
controller in the system.

¾ Azalia/AC’97 Audio Select

Use this item to enable or disable the onboard Azalia/AC’97
Audio function.

Press <Esc> to return to the Integrated Peripherals page.

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

z Super IO Device

Scroll to this item and press <Enter> to view the sub menu Super
IO Device.

¾ Onboard FDC Controller

Select Enabled, if your system has a floppy disk controller
(FDC) installed on the system board and you want to use it.
If you install and-in FDC or the system has no floppy drive,
select Disabled in this field. Options: Enabled and Disabled.

¾ Onboard Serial Port 1 / 2

Select an address and corresponding interrupt for the serial
port. Options: 3F8/IRQ4, 2E8/IRQ3, 3E8/IRQ4, 2F8/IRQ3,
Disabled, Auto.

¾ URAT Mode Select

When UART Mode Select is set as ASKIR or IrDA, the
options RxD, TxD Active and IR Transmittion delay will
appear.

¾ UAR2 Duplex Mode

The second serial port offers these infrared interface modes:

1. IrDA

2. ASKIR IrDA-compliant serial infrared port

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CEM820 Intel®Pentium®M/Celeron® COM Express

3.

Normalo (default value)

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Type-II Module

NOTE The UART Mode Select will not appear on the menu

once you disable the setting of Onboard Serial Port 2.

¾ Onboard Paralellel Port 3/4

This item allows you to determine the I/O address for
onboard parallel port.

¾ Onboard Parallel Port

This item is used to assign the I/O address and interrupt
request (IRQ) for the onboard parallel port.

¾ Parallel Port Mode

Select an operating mode for the onboard parallel (printer)
port. Select Normal unless your hardware and software
require another mode in this field. Options: EPP1.9, ECP,
SPP, ECPEPP1.7, EPP1.7.

¾ EPP Mode Select

Select EPP port type 1.7 or 1.9.

¾ ECP Mode Use DMA

Select a DMA channel for the parallel port while using the
ECP mode.

¾ PWRON After PWR-Fail

This item enables your computer to automatically restart or
return to its operating status.

Press <Esc> to return to the Integrated Peripherals page, and press it
again to the Main Menu page.

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

4.9 Power Management Setup

The Power Management Setup allows you to save energy of your
system effectively. It will shut down the hard disk and turn OFF video
display after a period of inactivity.

z ACPI Function

This item allows you to enable/disable the Advanced Configuration
and Power Management (ACPI). The function is always “Enabled”.

z ACPI Suspend Type

This item specifies the power saving modes for ACPI function. If
your operating system supports ACPI, such as Windows 98SE,
Windows ME and Windows 2000, you can choose to enter the
Standby mode in S1 (POS) or S3 (STR) fashion through the setting

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of this field. Options are:

[S1 (POS)] The S1 sleep mode is a low power state. In this
state, no system context is lost (CPU or chipset) and
hardware maintains all system contexts.
[S3 (STR)] The S3 sleep mode is a lower power state where
the information of system configuration and open
applications/files is saved to main memory that remains
powered while most other hardware components turn off to
save energy. The information stored in memory will be used
to restore the system when a “wake up” event occurs.

z Power Management

This option allows you to select the type of power Management.
Options: APM, ACPI.

z Video Off Method

This setting determines the manner in which the monitor is blanked.

V/H
SYNC+Blank

DPMS

Blank Screen

It turns OFF vertical and horizontal synchronization ports
and writes blanks to the video buffer.

Select this option if your monitor supports the Display
Power Management Signaling (DPMS) standard of the
Video Electronics Standards Association (VESA). Use
the supplied software for your video subsystem to select
video power management values.

The System only writes blanks to the video buffer.

z Video Off In Suspend

This item defines if the video is powered down when the system is
put into suspend mode.

z Suspend Type

If this item is set to the default Stop Grant, the CPU will go into Idle
Mode during power saving mode.

z Moden Use IRQ

If you want an incoming call on a modem to automatically resume
the system from a powersaving mode, use this item to specify the
interrupt request line (IRQ) used by the modem. You might have to
connect the fax/modem to the board Wake On Modem connector
for working this feature.

1. Suspend Mode

After a selected period of system inactivity (1 minute to 1 hour), all

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

devices except the CPU shut off. The default value is “Disabled”.

Disabled

1/2/4/6/8/10/
20/30/40
Min/1 Hr

2. HDD Power Down

If HDD activity is not detected for a specified length of time in this field,
the hard disk drive will be powered down while other devices remain
active.

z Soft-Off by PWR-BTTN

The System will never enter the SUSPEND mode.
It defines continuous idle time before the system

entering the SUSPEND mode.
If any item defined in (J) is enabled and active, the
SUSPEND timer will be reloaded.

This option only works with systems using an ATX power supply. It
also allows users to define which type of soft power OFF sequence
the system will follow. The default value is “Instant-Off”.

This option follows the conventional manner of system

Instant-Off

Delay 4 Sec.

z Wake-Up by PCI PME

performance when turning the power to OFF. Instant­Off is a software power OFF sequence requiring the
power supply button is switched to OFF.

Upon the system’s turning OFF through the power
switch, this option will delay the complete system power
OFF sequence approximately 4 seconds. Within this
delay period, the system will temporarily enter into the
Suspend Mode enabling you to restart the system at
once.

If enable this item, the system can automatically resume when the
PCI Modem or PCI LAN card receives an incoming call.

z Power On by Ring / ONBD PCI

This option allows the system to resume or wake up upon detecting
any ring signals coming from an installed modem. The default value
is “Enabled”.

z Resume by Alarm

If enable this item, the system can automatically resume after a
fixed time in accordance with the system’s RTC (realtime clock).

Press <Esc> to return to the Main Menu page.

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4.10 PnP/PCI Configuration Setup

This section describes the configuration of PCI (Personal Computer
Interconnect) bus system, which allows I/O devices to operate at
speeds close to the CPU speed while communicating with other
important components. This section covers very technical items that
only experienced users could change default settings.

z Init Display First

This item allows you to decide whether PCI Slot or AGP to be the
first primary display card.

z Reset Configuration Data

Normally, you leave this item Disabled. Select Enabled to reset
Extended System Configuration Data (ESCD) when you exit Setup
or if installing a new add-on cause the system reconfiguration a
serious conflict that the operating system can not boot. Options:
Enabled, Disabled.

z Resources Controlled By

The Award Plug and Play BIOS can automatically configure all
boot and Plug and Play-compatible devices. If you select Auto, all
interrupt request (IRQ), DMA assignment, and Used DMA fields

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

disappear, as the BIOS automatically assigns them. The default
value is “Manual”.

z IRQ Resources

When resources are controlled manually, assign each system
interrupt to one of the following types in accordance with the type
of devices using the interrupt:

1. Legacy ISA Devices compliant with the original PC AT bus
specification, requiring a specific interrupt (such as IRQ4 for serial port

1).

2. PCI/ISA PnP Devices compliant with the Plug and Play standard,

whether designed for PCI or ISA bus architecture.

The default value is “PCI/ISA PnP”

z PCI/VGA Palette Snoop

.

Some non-standard VGA display cards may not show colors
properly. This item allows you to set whether MPEG ISA/VESA
VGA Cards can work with PCI/VGA or not. When enabled, a
PCI/VGA can work with a MPEG ISA/VESA VGA card; when
disabled, a PCI/VGA cannot work with a MPEG ISA/VESA Card.

Press <Esc> to return to the Main Menu page.

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4.11 PC Health Status

This section supports hardware monitering that lets you monitor those
parameters for critical voltages, temperatures and fan speed of the
board.

z System Component Characteristics

These read-only items show you information about the system’s
current operating status, and the functions of the hardware thermal
sensor monitoring the chipset blocks and system temperatures to
ensure a stable system.

1. System Temperature

2. Expanded Temperature

3. CPU Temperature

4. Current FAN1/2 Speed

5. CPU Voltage

Press <Esc> to return to the Main Menu page.

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

4.12 Frequency/Voltage Control

This section is to control the CPU frequency and Supply Voltage,
DIMM OverVoltage and AGP voltage.

z Auto Detect PCI/DIMM Clk

The enabled item can automatically disable the clock source for a
PCI slot without a module, to reduce EMI (ElectroMagnetic
Interference).

z Spread Spectrum

If spread spectrum is enabled, EMI (ElectroMagnetic Interference)
generated by the system can be significantly reduced.

Press <Esc> to return to the Main Menu page.

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4.13 Load Optimized Defaults

This option allows you to load your system configuration with default
values. These default settings are optimized to enable high
performance features.

To load CMOS SRAM with SETUP default values, please enter “Y”. If
not, please enter “N”.

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4.14 Set Supervisor/User Password

You can set either supervisor or user password, or both of then. The
differences between are:

1. Supervisor password: can enter and change the options of the

setup menus.

2. User password: just can enter but do not have the right to change

the options of the setup menus.

When you select this function, the following message will appear at the
center of the screen to assist you in creating a password.

ENTER PASSWORD:

Type the password with eight characters at most, and press <Enter>.
The password typed will now clear any previously entered password
from CMOS memory. You will be asked to confirm the password. Type
the password again and press <Enter>. You may also press <Esc> to
abort the selection and not enter a password.

To disable password, just press <Enter> when you are prompted to
enter password. A message will confirm the password being disabled.
Once the password is disabled, the system will boot and you can enter
Setup freely.

PASSWORD DISABLED.

When a password is enabled, you have to type it every time you enter
Setup. This prevents any unauthorized person from changing your
system configuration.

Additionally when a password is enabled, you can also require the
BIOS to request a password every time the system reboots. This would
prevent unauthorized use of your computer.

You determine when the password is required within the BIOS
Features Setup Menu and its Security option. If the Security option is
set to “System”, the password is required during boot up and entry into
Setup. If set as “Setup”, prompting will only occur prior to entering
Setup.

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4.15 Save & Exit Setup

This allows you to determine whether or not to accept the modifications.
Typing “Y” quits the setup utility and saves all changes into the CMOS
memory. Typing “N” brigs you back to Setup utility.

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4.16 Exit Without Saving

Select this option to exit the Setup utility without saving the changes
you have made in this session. Typing “Y” will quit the Setup utility
without saving the modifications. Typing “N” will return you to Setup
utility.

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CEM820 COM ExpressTM Type II Module User’s Manual

A p p e n d i x

Watchdog Timer

Watchdog Timer Setting
(From CEB94000 Super I/O W83627HG)

After the system stops working for a while, it can be auto-reset by the
Watchdog Timer. The integrated Watchdog Timer can be set up in the
system reset mode by program.

Using the Watchdog Function

Start
↓
Un-Lock WDT:
O 2E 87 ; Un-lock super I/O

O 2E 87 ; Un-lock super I/O
↓
Select Logic device:
O 2E 07
O 2F 08
↓
Activate WDT:
O 2E 30
O 2F 01
↓
Set Second or Minute :
O 2E F5
O 2F N N=00 or 08(See below table)
↓
Set base timer :
O 2E F6
O 2F M=00,01,02,…FF(Hex) ,Value=0 to 255
↓

WDT counting re-set timer :
O 2E F6

O 2F M ; M=00,01,02,…FF(See below table)

Watchdog Timer

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CEM820 Intel®Pentium®M/Celeron® COM ExpressTM Type-II Module

; IF to disable WDT:
O 2E 30
O 2F 00 ; Can be disable at any time

z Timeout Value Range

 1 to 255
 Minute / Second

z Program Sample

Watchdog Timer can be set to system reset after 5-second timeout.

2E, 87
2E, 87
2E, 07
2F, 08
2E, 30
2F, 01

2E, F5

2F, N

2E, F6

2F, M

Logical Device 8
Activate

Set Minute or Second
N=08 (Min),00(Sec)

Set Value
M = 00 ~ FF

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Watchdog Timer