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User’s Manual
3.5.2Advanced BIOS Features
This section allows you to configure your system for basic operation. You have the opportunity to select the system’s default speed, boot-up sequence, keyboard operation, shadowing and security.
3.5.2.1 CPU Feature
This item allows you to setup the CPU thermal management function.
| Item | | Options | Description |
| Thermal Management | | Thermal Monitor 1 | |
| | Thermal Monitor 2 | |
| | | |
| TM2 Bus VID | 0.700 ~ 1.708 | |
| Execute Disable Bit | | Enabled, Disabled | |
3.5.2.2 Virus Warning
Allows you to choose the VIRUS Warning feature for IDE Hard Disk boot sector protection. If this function is enabled and someone attempt to write data into this area, BIOS will show a warning message on screen and alarm beep.
| Item | Description |
| Enabled | Activates automatically when the system boots up causing a warning message to |
| appear when anything attempts to access the boot sector or hard disk partition table. |
| |
| Disabled | No warning message will appear when anything attempts to access the boot sector or |
| hard disk partition table. |
| |
3.5.2.3 CPU L1 & L2 & L3 Cache
The item allows you to speed up memory access. However, it depends on CPU design.
Item | Description |
Enabled | Enable cache |
Disabled | Disable cache |
3.5.2.4 Quick Power On Self Test
This category speeds up Power On Self Test (POST) after you power up the computer. If it is set to Enable, BIOS will shorten or skip some check items during POST.
Item | Description |
Enabled | Enable quick POST |
Disabled | Normal POST |
AIMB-250 User’s Manual 67
Contents
1st Ed January
Mini-ITX AIMB-250 Series
AIMB-250 Series
FCC Statement
Copyright Notice
Trademark Acknowledgement
User’s Manual
Disclaimer
Life Support Policy
Message to the Customer
Advantech Corp
Technical Support
Product Warranty
Contents
Bios Setup
Offending Address not Found
Keyboard Error or no Keyboard Present
Memory Size has Changed Since Last Boot
System HALTED, CTRL-ALT-DEL to Reboot
Hard Disks fail → Unable to recalibrate fixed disk
Packing List
Safety Precautions
Revision Date Comment
Document Amendment History
Jan Initial release
Manual Objectives
System
System Specifications
Display
Mechanical & Environmental
Architecture Overview
Block Diagram
User’s Manual Intel 855GME and ICH4
AIMB-250 Series
ECC
PCI Interface
Dram Interface Intel 855GME
VIA VT1616 Audio Codec
8 USB
AIMB-250 Series Chrontel CH7009A TV/DVI Transmitter
Page
Compact Flash Interface
AIMB-250 Series Winbond W83627HF
Hardware Configuration
Product Overview
Processor Installation Installing Pentium M CPU
Installation Procedure
Removing CPU
Installing the Fan and Heat Sink
DIMM1
User’s Manual Main Memory
AIMB-250 Series
Label Function
Jumper and Connector List
JP2, JP3
Connectors
KBMS1
2 COM1 Pin 9 Signal Select JP1 +5V Ring +12V
Setting Jumpers & Connectors
Clear Cmos JBAT1 Protect
RS-485 RS-485
RS-422 RS-422
Pwrok GND
ATX Power Connector ATXPWR1
BIT1 BIT2 OFF
Vccsb
Signal Description CPU Fan Connector CFAN1
User’s Manual CPU Fan Connector CFAN1
TAC
RED GND Green DAT Blue Hsync VCC Vsync DCK
AIMB-250 Series Parallel Port Connector & VGA Connector CN1
Signal Description VGA Connector CN1
COM
DTR
Serial Port 1 Connector in RS-232 Mode CN1
DCD
DTR GND DSR RTS CTS
AIMB-250 Series Serial Port 1 Connector in RS-422 Mode CN1
Data DATA+ GND
Serial Port 1 Connector in RS-485 Mode CN1
12 RJ-45 Ethernet / USB 0 & 1, 4 & 5 Connectors CN3, CN4
AIMB-250 Series Audio Connector CN2 Audio-In
13 4/5/8-Wire Touch Screen Connector CN5, optional
GND WPT Rdata SIDE1 Dskchg
User’s Manual Floppy Connector FLP1
Moatsa
AIMB-250 Series Signal Description Floppy Connector FLP
User’s Manual Primary IDE Connector IDE1
AIMB-250 Series Secondary IDE Connector IDE2
Iordy
RESET#
IOR#
IOW#
Signal Description LCD Inverter Connector JBKL1
AIMB-250 Series LCD Inverter Connector JBKL1
GND Enbkl
Signal Description CD-ROM Audio Input Connector JCD1
User’s Manual CD-ROM Audio Input Connector JCD1
Serial Port 2 Connector JCOM1
JCOM2 JCOM3
AIMB-250 Series Serial Port 3/4 Connector JCOM2, JCOM3
Smbdata
Digital Input / Output Connector JDIO1
Signal Description Digital Input / Output Connector JDIO1
Smbclk
Signal Description Front Panel Connecter JFP1
AIMB-250 Series Front Panel Connector JFP1
HDD LED
Irrx
User’s Manual IrDA Connector JIR1
Signal Description IrDA Connecter JIR1
Irrx GND Irtx
2CDAT, I 2CCLK
AIMB-250 Series Lvds Connector JLVDS1
Signal Description Lvds Connector JLVDS1
2CDAT 2CCLK GND
#MASTER
User’s Manual Miscellaneous Setting Connector JMISC1
Signal Description Miscellaneous Setting Connecter JMISC1
CASEOPEN# VTIN3 GND Thrmdn
Signal Description Tmds Connecter JTMDS1
AIMB-250 Series Tmds DVI Connector JTMDS1
Tvcvb
User’s Manual TV Out Connector JTV1
Signal Description TV Out Connecter JTV1
Tvcvb GND TVYFCC2 TVCFCC2
USB Connector 4 & 5 JUSB2
AIMB-250 Series USB Connector 2 & 3 JUSB1
Signal Description USB Connecter 2, 3, 4 & 5 JUSB1, JUSB2
Signal Description System Fan Connector SFAN1, SFAN2
System Fan Connector 1 & 2 SFAN1, SFAN2
Bios Setup
Press DEL to enter Setup
Starting Setup
Press F1 to Continue, DEL to enter Setup
Navigating Through The Menu Bar
Using Setup
Getting Help
Case of Problems
User’s Manual To Display a Sub Menu
Main Menu
Main Menu Selection
User’s Manual Standard Cmos Features
IDE Adapter Setup
Virus Warning
User’s Manual Advanced Bios Features
CPU Feature
Quick Power On Self Test
Swap Floppy Drive
AIMB-250 Series First/Second/Third/Other Boot Device
Boot Up NumLock Status Select power on state for NumLock
Typematic Rate Setting
Report No FDD For WIN95
Apic Mode
MPS Version Control For OS
OS Select for Dram 64MB
CAS Latency Time
AIMB-250 Series Advanced Chipset Features
Active to Precharge Delay
Dram Timing Selectable
Video Bios Cacheable
User’s Manual Dram RAS# to CAS# Delay
Dram Data Integrity Mode
System Bios Cacheable
AGP Aperture Size MB
Delayed Transaction
Delay Prior to Thermal
AIMB-250 Series Memory Hole At 15M-16M
OnChip IDE Device
User’s Manual Integrated Peripherals
IDE
Onboard Device
User’s Manual Super IO Device
IRQ3, IRQ4, IRQ5
Watch Dog Timer
2E8/IRQ3, Auto
ECP+EPP
Acpi Suspend Type
User’s Manual Power Management Setup
Power Management
Acpi Function
Soft-Off by PWR-BTTN
Power On By Ring
Resume By Alarm
AIMB-250 Series Modem Use IRQ
PCI / VGA Palette Snoop
User’s Manual PnP / PCI Configuration
Reset Configuration Data
Resources Controlled By
Case Open Warning
AIMB-250 Series PC Health Status
CPU Host / 3V66 / PCI Clock
User’s Manual Frequency / Voltage Control
Auto Detect PCI Clk
Spread Spectrum
Load Optimized Defaults
AIMB-250 Series Load Fail-Safe Defaults
User’s Manual Set Supervisor / User Password
Save & Exit Setup
Password Disabled
User’s Manual Exit Without Save
Drivers Installation
Step
Install Driver
User’s Manual Click AIMB-250
Mechanical Drawing
Unit mm
Award Bios Post
Overview
Error Messages
Post Beep
Eisa Configuration Is Not Complete
Eisa Configuration Checksum Error
Memory Verify Error at
User’s Manual Invalid Eisa Configuration
Memory Address Error at
Memory parity Error at
Should Have Eisa Board But Not Found
Should Be Empty But Eisa Board Found
Slot Not Empty
Manufacturing Post loop
Keyboard error or no keyboard present
Bios ROM checksum error System halted
User’s Manual Wrong Board In Slot
40.1Normal Post Code
AIMB-250 Series Post Codes
E1-EF
User’s Manual
AIMB-250 Series
User’s Manual
AIMB-250 Series
AIMB-250 User’s Manual101
AIMB-250 Series 40.2Quick Post Codes
AIMB-250 User’s Manual103
SMI
AIMB-250 Series 40.3S4 Post Codes
40.4BootBlock Post Codes