AOpen AP41 User Manual Download Page 15

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Features

Specifications

Microprocessor

5V CPUs

Intel SL-enhanced
Intel SX/DX/DX2
AMD DX/DX2
Cyrix DX/DX2
Intel P24D
Intel P24T

3.45V CPUs

Intel DX4
AMD DX2
AMD DX4/DX4-S
Cyrix DX2/DX4/5X86
TI DX2

Maximum Memory

128 MB

SIMM Sockets

Four 72-pin, 32-bit

ASICs

SiS85C496
SiS85C497

Bus Architecture

ISA, PCI

Expansion Slots

Four ISA slots, Three PCI slots

Ports

One parallel port (ECP/EPP)
Two serial ports
Two-channel PCI mode 4 IDE
One floppy disk connector

Onboard Battery

CR2032 3.0V lithium battery

RTC

146818 built-in 85C497

Secondary Cache

128 KB/256 KB/512 KB

BIOS

AMI Plug-and-Play WinBIOS

Board Size

220 mm x 250 mm (baby-AT)

1-2

User’s Guide

Summary of Contents for AP41

Page 1: ...AP41 User s Guide...

Page 2: ...ublication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optica...

Page 3: ...ompany its distributor or its dealer assumes the entire cost of all necessary servicing repair and any incidental or consequential damages resulting from any defect in the software Further this compan...

Page 4: ...Copyright Other brand and product names are trademarks and or registered trademarks of their respective holders iv...

Page 5: ...ation 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 interf...

Page 6: ...system board Chapter 2 Hardware Setup tells how to set the jumpers upgrade the CPU and the system memory install the system board and add expansion cards Chapter 3 AMI BIOS explains the system BIOS a...

Page 7: ...s that you have to press on the keyboard NOTE Gives bits and pieces of additional information related to the current topic WARNING Alerts you to any damage that might result from doing or not doing sp...

Page 8: ...Expansion Slots 1 5 DRAM Sockets 1 5 Two Channel PCI Mode 4 IDE 1 5 Super I O Controller 1 6 Keyboard Connector 1 6 SRAM1 6 Power Management 1 6 2 Hardware Setup CPU Options 2 1 5V CPU Options 2 1 3...

Page 9: ...learing the CMOS 2 18 Memory Configuration 2 18 Installing a SIMM 2 19 Removing a SIMM 2 20 Connectors 2 21 Multifunction Connector 2 21 Keyboard Connector 2 23 Power Connector 2 24 Break Suspend Conn...

Page 10: ...8 Memory Test Tick Sound 3 8 Hit Del Message Display 3 8 Extended BIOS RAM Area 3 8 Wait for F1 If Any Error 3 8 System Boot up Num Lock 3 9 Numeric Processor Test 3 9 Floppy Drive Seek at Boot 3 9 F...

Page 11: ...condary 1st IDE Block Mode 3 14 Secondary 2nd IDE Block Mode 3 14 Chipset Setup Mode 3 15 Chipset Features Setup 3 15 Memory Speed DRAM 3 17 Cache Speed SRAM 3 17 CPU to PCI Memory Post Write Buffer 3...

Page 12: ...tup 3 26 Programming Mode 3 27 Onboard FDC 3 27 Serial Port 1 3 27 Serial Port 2 3 27 Parallel Port 3 27 IRQ Active 3 28 Parallel Port Mode 3 28 Utility Setup 3 28 Detect Master and Detect Slave 3 28...

Page 13: ...Table of Contents Exit Setup 3 35 NCR SCSI BIOS and Drivers 3 36 Appendix A Jumper Summary Appendix B SiS Drivers xii...

Page 14: ...ble to 128 MB by adding single in line memory modules SIMMs The second level cache is upgradable to 512 KB and supports both the write back and write through modes Two SiS application specific integra...

Page 15: ...MM Sockets Four 72 pin 32 bit ASICs SiS85C496 SiS85C497 Bus Architecture ISA PCI Expansion Slots Four ISA slots Three PCI slots Ports One parallel port ECP EPP Two serial ports Two channel PCI mode 4...

Page 16: ...ctor 13 ISA slots 4 Power connector 14 PCI slots 5 72 pin SIMM sockets 15 Keyboard controller 6 ZIF type CPU socket 16 IDE2 connector 7 2 pin fan connector 17 IDE1 connector 8 4 pin fan connector 18 F...

Page 17: ...sor The AP41 system board supports the Intel SL enhanced Intel 486SX DX DX2 DX4 AMD 486DX DX2 DX4 DX4 S Cyrix 486DX DX2 DX4 5X86 and TI 486DX2 series microprocessors Chapter 2 gives details on how to...

Page 18: ...basic input output system resides in the flash ROM chip This contains the program that performs the power on self tests POST upon booting During POST this program activates the peripheral devices tes...

Page 19: ...capacity This feature offers users increased data storage capacity Super I O Controller The onboard super I O controller chip supports two UART 16450 16550 compatible serial ports and a parallel port...

Page 20: ...rough cache Power Management The AP41 conforms to the power saving standards of the U S Environmental Protection Agency EPA Energy Star program The system board features four power saving modes that r...

Page 21: ...You may add the other components after installing the board Read this chapter to learn about the components before you install them CPU Options The system board supports both 5V and 3 45V CPUs The fo...

Page 22: ...isk drives expansion boards and other components Always observe the following precautions before you install a system component 1 Do not remove a component from its protective packaging until you are...

Page 23: ...install a CPU in a ZIF type upgrade socket Make sure that the system power is OFF before installing any component 1 Pull up the socket lever 2 Insert the CPU with the attached heatsink and fan Make su...

Page 24: ...ordingly See the following sections for the correct jumper settings Upgrading the Microprocessor Follow these steps to upgrade the CPU 1 Turn off the system power 2 Pull up the socket lever 3 Remove t...

Page 25: ...onfigure the system This section tells how to reset the jumpers The figure below shows the jumper locations Set a jumper switch as follows To close a jumper switch insert the plastic jumper cap over t...

Page 26: ...up The following conventions are used to represent the proper jumper settings When you open a jumper attach the plastic jumper cap to one of the pins so you won t lose it 2 6 User s Guide Open Closed...

Page 27: ...ntel processors you must determine if your CPU is SL enhanced or not To check simply look for the symbol in the third row on the lower label of the CPU The P24D processor looks very similar to an Inte...

Page 28: ...Hardware Setup 5V CPU TYPE JUMPER SETTINGS 2 8 User s Guide JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40...

Page 29: ...of 3 45V IntelDX4 CPUs one with write through mode support while the other is with write back mode support To determine an IntelDX4 CPU with write back internal mode look for the letter W in the third...

Page 30: ...lso an SL enhanced CPU but with write back internal cache mode support To determine your AMD CPU type check the second row of your CPU label An SL enhanced AMD DX4 CPU has a letter S following the AMD...

Page 31: ...ermine the Cyrix DX4 CPU pinout check the CPU label A Cyrix DX4 with iDX4 pinout has a DX4 P O indication on the second row of the lower CPU label A Cyrix DX4 with M7 pinout does not have this indicat...

Page 32: ...Hardware Setup 3 45V CPU TYPE JUMPER SETTINGS 2 12 User s Guide JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40...

Page 33: ...Hardware Setup User s Guide 2 13 JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP40...

Page 34: ...requency Setting the Flash ROM Type Set jumper JP4 according to the type of Flash ROM in use If the system uses a 5V EEPROM or 5V Flash ROM instead of a 12V Flash ROM you must set the jumper to 2 3 Th...

Page 35: ...Enabling the FDC and Super I O Chip The jumper JP1 is used to enable or disable the floppy disk controller FDC and the super I O chip The SMC665 onboard I O chip supports two serial ports one paralle...

Page 36: ...0 256 KB 16 Kb x 8 or 32 Kb x 8 32 Kb x 8 x 8 pcs Banks 0 and 1 256 KB 16 Kb x 8 or 32 Kb x 8 64 Kb x 8 x 4 pcs Bank 0 512 KB 32 Kb x 8 64 Kb x 8 x 8 pcs Banks 0 and 1 512 KB 32 Kb x 8 128 Kb x 8 x 4...

Page 37: ...t to bend the pins When upgrading the cache install the SRAM chips and set jumpers JP24 JP25 JP26 JP27 and JP29 accordingly See the following figure User s Guide 2 17 JP24 JP25 JP26 JP27 JP29 128 KB 2...

Page 38: ...Enter Setup to specify a new password Memory Configuration The system memory is upgradable from 1 MB to 128 MB The four 72 pin SIMM sockets accommodate 1 4 16 and 64 MB single density SIMMs and 2 8 an...

Page 39: ...lip a SIMM at a 45o angle into a socket with the component side facing down Be careful when inserting or removing SIMMs Forcing a SIMM in or out of a socket can damage the socket or the SIMM or both 2...

Page 40: ...are Setup Removing a SIMM 1 Press the holding clips on both sides of the SIMM outward to release it 2 Press the SIMM downward to about a 45o angle 3 Gently pull the SIMM out of the socket 2 20 User s...

Page 41: ...nd speaker Attach the front panel connectors to the corresponding pins as in the illustration below Turbo Switch Turbo LED Break Switch Green Mode LED Reset Speaker Power LED Keylock Some housings hav...

Page 42: ...f your housing has this type of connector plug it into CN5 as shown in the following figure Make sure that the red wire of the connector connects to pin 11 Turbo Switch Break Switch Ground VCC Ground...

Page 43: ...switch into the CN5 multifunction connector Take note that in turbo mode the LED is on In deturbo mode the LED is off To use the LED for the green function you need to connect the break switch into J...

Page 44: ...oard in such a way that all the black wires are in the center Break Suspend Connector The Break Suspend connector is a 3 pin connector labeled JP9 on the system board Pressing the break switch on the...

Page 45: ...Hardware Setup You cannot use the break switch and the turbo switch at the same time User s Guide 2 25...

Page 46: ...connector is marked JP43 on the system board To connect plug the connector to its corresponding pin as shown in the following figure To connect the 4 pin fan power connector simply plug it into the 4...

Page 47: ...used to connect an external battery in case your system board does not have an onboard battery or the 146818 RTC battery To connect an external battery simply plug the battery connector into JP35 Mak...

Page 48: ...ake sure that you have already installed the system board components like the CPU and memory and have set the appropriate jumpers before you proceed Installing the System Board 1 Open the system housi...

Page 49: ...oard 1 Remove the bracket opposite the slot that you want to use Save the cover for future use Save the screw to secure the expansion board 2 Remove the board from its protective packaging 3 Gently in...

Page 50: ...r a mouse to move between the items To select among the Setup groups use v to highlight the selected group or simply click on the icon of the selected Setup menu To select among the options you can ei...

Page 51: ...p up window appears below Date Time To set the date and time highlight Date Time and press e or double click on the Date Time icon The following screen appears Use the arrow keys to move among the ite...

Page 52: ...ct Floppy A The following values appear on the screen After selecting the proper setting press e or double click the Control menu box to close the window Select Floppy B and follow the same procedure...

Page 53: ...ot find your hard disk drive type on the list select User and enter the disk parameters You can also select Utility Setup This automatically configures your hard disk Refer to the section Utility Setu...

Page 54: ...you select Advanced from the main menu The screen above does not show all the parameters of the Advanced Configuration menu Use w or y to highlight the desired parameter Press to view the rest of the...

Page 55: ...AMI BIOS 3 6 User s Guide...

Page 56: ...ematic Rate Chars Sec This parameter determines the typematic rate The typematic rate settings are 15 20 30 and Disabled The default setting is 30 Set it to Disabled to disregard the rate setting User...

Page 57: ...is VGA EGA Above 1 MB Memory Test This parameter allows your system to check all available memory Therefore setting this parameter to Enabled slows down the power on self test The default setting is...

Page 58: ...his parameter to On enables the numeric function of the numeric keypad Set this parameter to Off to disregard the function Disabling the numeric function allows you to use the numeric keypad for curso...

Page 59: ...efault setting is A C System Boot up CPU Speed Set the system speed to High or Low with this parameter High is the default setting Turbo Switch Function This parameter lets you enable or disable the t...

Page 60: ...enabled unless you are troubleshooting a problem External Cache Mode The external cache can be set either to Write back or Write through modes The Write back mode is faster than the Write through mod...

Page 61: ...This function is for shadowing other expansion card ROMs The default setting for these areas is Disabled If you have other expansion cards with ROMs on them you need to know the specific addresses th...

Page 62: ...This copies the video ROM area to RAM and therefore enhances the system performance Disabling the parameter prevents the video BIOS from being cached Secondary IDE Drives Present This parameter allows...

Page 63: ...k multiple sectors by increasing the data transfer rate Disable the parameter if your hard disk does not support this feature Secondary 2nd IDE Block Mode This function enhances the performance of the...

Page 64: ...ommend that you set this parameter to End user See the following section for more details about the Chipset Features Setup Chipset Features Setup The Chipset Features Setup controls the board s chipse...

Page 65: ...AMI BIOS 3 16 User s Guide...

Page 66: ...ameter setting is Engineer Take note of the new parameters that replaced the Memory Speed DRAM and the Cache Speed SRAM parameters See screens 2 3 and 4 for the rest of the parameters This manual desc...

Page 67: ...ameter to deactivate the buffering function CPU to Memory Burst Write Enabling this parameter allows the translation of the host cycles into memory burst cycles and controls the memory burst write cyc...

Page 68: ...you know your HDD PIO mode you can set this parameter manually The default setting is Auto Secondary Master PIO Mode If this enhanced IDE parameter is set to Auto it automatically detects the PIO mod...

Page 69: ...IDE cards installed Primary PCI IDE Card Uses This parameter lets you assign an INT for the IDE device connected to your primary IDE connector The settings are INT A INT B INT C and INT D If you do no...

Page 70: ...C and INT D Make sure that you assign a different INT for each PCI device function IRQ CONNECT This parameter is configurable only if the PCI IRQ Allocation parameter is set to Manual This allows you...

Page 71: ...ble simply select an IRQ setting The selections are IRQ 10 IRQ 11 IRQ 12 IRQ 15 and Disabled Disable the parameter to bypass the feature The default setting for this parameter is Disabled When disable...

Page 72: ...AMI BIOS User s Guide 3 23...

Page 73: ...0 Min 15 Min 20 Min 30 Min 40 Min and Disabled Standby Timer This function holds the CPU clock and suspends the video signal This activates the power saving features on your monitor Full power returns...

Page 74: ...Green Display Off After This parameter lets you set the display off mode The selections are Doze Suspend Standby and Disabled Once the system enters the specified mode the monitor screen turns blank M...

Page 75: ...allows the system to enter suspend mode and return to normal mode by simply pressing the break switch However enabling the break switch disables your turbo functions Disable the parameter to take adv...

Page 76: ...setting is Enabled Serial Port 1 This parameter allows you to set the base address of serial port 1 The available settings are 3F8H 2F8H 3E8H 2E8H and Disabled The default setting is 3F8H Serial Port...

Page 77: ...ode The settings are Normal SPP EPP SPP ECP and ECP EPP The default setting is Normal Utility Setup Detect Master and Detect Slave These functions allow your system to automatically configure the hard...

Page 78: ...lor Set This pop up window appears if you select Color Set from the Utility Setup menu Color Set lets you select the color of your windows background The selections are LCD Army Pastel and Sky User s...

Page 79: ...Setup menu Choose Yes to load the original values Optimal Choose this option and the BIOS configures the system using the best case values to optimize system performance However these values may not...

Page 80: ...the best settings for system performance but safe and stable enough to guarantee you that your system will boot This is useful if you are having problems with your current system configuration and ne...

Page 81: ...ble to boot the computer without entering the password To set a password highlight Password or simply double click the Password icon The following screen appears Your password can consist of up to six...

Page 82: ...you forget your password you must clear the CMOS RAM and reconfigure the system To disable the password press e when prompted for your password Press e again when prompted to retype the password User...

Page 83: ...tect the boot sector and partition table of your hard disk from virus intrusion Set it to Disabled to bypass the feature A prompt appears when you select Anti virus from the Security Setup menu Select...

Page 84: ...dialog box appears on the screen If you select Save Changes and Exit BIOS automatically saves all CMOS values before leaving Setup Select Do Not Save Changes and Exit to exit Setup without saving the...

Page 85: ...0 SCSI controller card The DOS format device drivers are for SCSI devices used with DOS Windows NT Novell NetWare and OS 2 The SCO UNIX format device drivers are for SCSI devices used with SCO UNIX Th...

Page 86: ...AMI BIOS User s Guide 3 37...

Page 87: ...1 2 3 4 JP19 Open Open Open 1 2 JP20 Open 3 4 3 4 2 3 JP21 4 5 4 5 4 5 1 2 JP22 1 2 1 2 2 3 Open JP23 2 3 2 3 2 3 2 3 JP40 1 3 2 4 1 3 2 4 1 3 2 4 1 3 2 4 Intel AMD 486SX Intel AMD 486DX DX2 Cyrix 48...

Page 88: ...4 3 4 3 4 JP21 4 5 4 5 Open Open 4 5 4 5 JP22 1 2 2 3 Open Open 2 3 1 2 JP23 2 3 2 3 Open Open 2 3 2 3 JP40 3 5 4 6 3 5 4 6 3 5 4 6 3 5 4 6 3 5 4 6 3 5 4 6 Cyrix 486DX2 Cyrix 486DX4 iDX4 P O Cyrix 48...

Page 89: ...30 1 2 1 2 1 2 JP31 2 3 1 2 1 2 JP32 2 3 1 2 2 3 Flash ROM Type Type JP4 12V Flash ROM 1 2 5V EEPROM or Flash ROM 2 3 ECP DMA Channel DMA Channel JP2 JP3 DMA 1 2 3 2 3 DMA 3 1 2 1 2 FDC and Super I O...

Page 90: ...6 KB 1 2 2 3 1 2 1 2 1 2 3 4 64 KB x 8 512 KB 2 3 2 3 2 3 2 3 2 3 4 5 128 KB x 4 512 KB 2 3 2 3 2 3 1 2 1 2 3 4 CMOS Function JP37 Normal 1 2 Clear CMOS 2 3 Onboard Connectors Connector Function JP6 H...

Page 91: ...r list dialog box select Others Requires a disk from a hardware manufacturer 4 The Insert Diskette dialog box appears Insert the SiS driver into drive A and type A WINNT 5 The screen displays the Sele...

Page 92: ...r to the README SCO file in the SCO directory Installing SCO UNIX 3 2 X 1 Install SCO UNIX 3 2 4 X or SCO Open Desktop 2 X using the default SCO UNIX IDE drivers 2 Boot your SCO UNIX system and bring...

Page 93: ...15 5 25 DSHD RFD0135DS18 3 5 DSHD RFD048DS9 5 25 DSHD RFD0135DS9 3 5 DSHD 7 Start the installation by typing CUSTOM 8 Follow the screen instructions to install the SiS IDE driver A new kernel replaces...

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