a-trend ATC-1425A Mainboard user's guide

Back to motherboard page

Home

SYSTEM FEATURES

: Supports all Intel, AMD, UMC, CYRIX, and IBM 486 CPU, including Am5x86-P75 and Cyrix 5x86.

: Flexible architecture to support 128/256/512KB Direct mapped cache scheme.

: Supports 4 stage power saving: On/Doze/Standby/Suspend.
: Supports L1/L2 Write back/Write through cache feature.
: Supports 72-pin dual type SIM modules.
: Memory configurations from 1MB up to 256M by using 256K/1M/4M/8M/16M/32M/64MB SIM module supported.
: Supports SMI/SMM/PMU/APM power controllers.
: Supports 2 x Enhanced 32-bit local bus IDE Mode 3,4 up to 4 IDE devices.
: Supports 1 FDC port, 2 serial ports(16550 fast UART compatible), 1 parallel port(EPP/ECP mode).

The on-board I/O can be "disable or enable" from the "BIOS SET UP", please refer to page 10 (CHIPSET FEATURES SET UP).

 

CHECK LIST OF THE PACKING

(The mainboard comes securely packed in a durable box and shipping carton).

Each mainboard containing:

Q'TY Description
1 Mainboard : ATC-1425A.
1 Diskette : Enhanced IDE driver (3.5").
1 Cable : Enhanced IDE connector.
1 Cable : F.D.D connector.
1 Cable : Serial port.
1 Cable : Serial/Parallel.
1 Manual : User`s manual.

If any of the above items is missing or damage, please contact the dealer from whom you purchased this mainboard. Inside the box, the mainboard is sandwiched between two sheets of sponge and packed in an anti-static bag.

NOTE : Leave the mainboard in its original packing until you are ready to install it.

 

INTEL/AMD/CYRIX CPU JUMPER

CPU Type settings

CPU TYPE

JP22

JP24

JP25

JP26

JP27

JP28
P24T

1-2

open

1-2

open

1-2

3-4
P24D

1-2

1-2

1-2

1-2

1-2

1-2,3-4
S-SERIES

1-2

2-3

2-3

open

open

3-4
Enhanced Am486

1-2

1-2

1-2

1-2

1-2

1-2,3-4
AMD486DXL(3.45V)

2-3

open

2-3

open

open

open
486DX(5V)

open

2-3

2-3

open

open

open
486SX

open

2-3

2-3

open

open

open
CYRIX CX486

1-2

1-2

2-3

open

2-3

2-3
CYRIX M1-SC

1-2

1-2

2-3

1-2

1-2

1-2,3-4

CPU TYPE

JP29

JP30

JP31

JP32

JP33

JP34
P24T

1-2

1-2,3-4

2-3

open

1-2

2-3
P24D

open

1-2,3-4

2-3

2-3

4-5

3-4
S-SERIES

open

1-2,3-4

2-3

1-2

4-5

open
Enhanced Am486

open

1-2,3-4

2-3

2-3

4-5

3-4
AMD486DXL(3.45V)

3-4

1-2,3-4

4-5

open

open

1-2,3-4
486DX(5V)

open

1-2,3-4

open

open

open

3-4
486SX

open

2-3

open

open

open

open
CYRIX CX486

2-3

1-2,3-4

1-2

open

2-3

3-4
CYRIX M1SC

open

1-2,3-4

2-3

2-3

4-5

3-4

The jumper setting for Am5x86-P75 (X5-133) is same as P24D, and set

J21 to "close".

The JP23 setting for AMD486DXL(3.45V) CPU please see following table;

for other CPUs please set JP23 to "1-2".

JP23

486DX4

1-2

486DX2

2-3

 

CPU Speed setting

CPU SPEED

JP14

JP13

JP12
DX25/DX2-50/DX4-75

OPEN

OPEN

OPEN
DX33/DX2-66/DX4-100

OPEN

CLOSE

CLOSE
DX40/DX2-80/DX4-120

OPEN

OPEN

CLOSE
DX50

OPEN

CLOSE

OPEN

 

Setting of CPU Voltage:

CPU Voltage

JP34

JP35

5V

1-2

open

3.45V

2-3

1-3,2-4

4V

2-3

3-5,4-6

 

Other jumper setting

JP10

JP38

 J11

Synchronous clock

1-2

Flash ROM

1-2,5-6

External Battery

1-2

Asynchronous clock

2-3

EPROM

2-3,4-5

Internal Battery

2-3
       

Clear CMOS

3-4

 

SIM MODULES INSTALLATION

The SIS 486 PCI/ISA motherboard can be expanded from 1MB Up to 256MB by using 256K, 1MB,2MB,4MB 8MB,16MB,32MB and 64MB of 72-pin SIM module.

"Free Table" feature is offered for main memory configuration. The product works with one SIMM plugs into any SIMM sockets.

 

CACHE RAM INSTALLATION

This board can support cache memory from128K to 512K bytes with 32KX8, 64KX8 or 128KX8 types of cache RAM.

Cache Configuration Size

Cache Size

TAG RAM

(U22)

Cache RAM

(U18-21)

JP17

JP18

JP19

JP37

128K

8KX8

32KX8

1-2

1-2

1-2

1-2,3-4

256K

32KX8

64KX8

2-3

1-2

2-3

1-2,3-4

512K

32KX8

128KX8

1-2

2-3

2-3

1-2,3-4

 

OTHER CONNECTORS

Connector

Description

J40
 Reset.

J41
 HDD LED.

J42
 Turbo LED.

J43
 Turbo Switch.

J44
 Speaker Connector.

J45
 Keylock.

 

AWARD BIOS SYSTEM CONFIGULATION SETUP

To enter SETUP, by pressing the <Del> key when the system is booting up. The following menu apppears:

 

STANDARD CMOS SETUP

PASSWORD SETTING

BIOS FEATURES SETUP

IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP

SAVE & EXIT SETUP

POWER MANAGEMENT SETUP

EXIT WITHOUT SAVING

PCI CONFIGULATION SETUP
  

LOAD BIOS DEFAULTS
  

LOAD SETUP DEFAULTS
  

Esc: Quit

á â à ß :Select Item

F10: Save & Exit Setup

(Shift)F2: Change Color

Virus protection, Boot sequence ...

 

Date (mm:dd:yy) : Mon, Jul 3 1995
  

Time(hh:mm:ss) : 14 : 16 : 1
  

HARD DISK TYPE SIZE

CYLS. HEADS PRECOMP LANDZONE SECTORS MODE

Primary Master :None 0

0 0 0 0 0 --------

Primary Slave :None 0

0 0 0 0 0 --------

Secondary Master :None 0

0 0 0 0 0 --------

Secondary Slave :None 0

0 0 0 0 0 --------

Drive A: 1.2M, 5.25 in
  

Drive B: None

Base Memory : 640K
 

Extended memory : 11264K

Video : EGA/VGA

Other Memory : 384K

Halt On: All Errors

------------------------------------------------
 

Total Memory : 12288K

Esc : Quit á â à ß :Select Item

PU/PD/+/- : Modify

F1 : Help (Shift) F2: Change Color
  

STANDARD CMOS SETUP

PASSWORD SETTING

BIOS FEATURES SETUP

IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP

SAVE & EXIT SETUP

POWER MANAGEMENT SETUP

EXIT WITHOUT SAVING

PCI CONFIGULATION SETUP
  

LOAD BIOS DEFAULTS
  

LOAD SETUP DEFAULTS
  

Esc: Quit

á â à ß :Select Item

F10: Save & Exit Setup

(Shift)F2: Change Color

Virus protection, Boot sequence ...

Virus Warning

: Disabled

Video BIOS Shadow : Enabled

CPU Internal Cache

: Enabled

C8000-CFFFF Shadow : Disabled

External Cache

: Enabled

D0000-D7FFF Shadow : Disabled

Quick Power On Self Test

: Disabled

D8000-DFFFF Shadow : Disabled

Boot Sequence

: A, C
  

Swap Floppy Drive

: Disabled
  

Boot Up Floppy Seek

: Enabled
  

Boot Up NumLock Status

: On
  

Boot Up System Speed

: High
  

Gate A20 Option

: Fast
  

Typematic Rate Setting

: Disabled
  

Typematic Rate (Chars/Sec)

: 6
  

Typematic Delay (Msec)

: 250
  

Security Option

: Setup
  
   

Esc : Quit á â à ß :Select Item
   

F1 : Help U/PD/+/- : Modify
   

F5 : Old Values (Shift)F2:Color
   

F6 : Load BIOS Defaults
   

F7 : Load Setup Defaults

 

STANDARD CMOS SETUP

PASSWORD SETTING

BIOS FEATURES SETUP

IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP

SAVE & EXIT SETUP

POWER MANAGEMENT SETUP

EXIT WITHOUT SAVING

PCI CONFIGULATION SETUP
  

LOAD BIOS DEFAULTS
  

LOAD SETUP DEFAULTS
  

Esc: Quit

á â à ß :Select Item

F10: Save & Exit Setup

(Shift)F2:Change Color

At clock, DRAM timings ....

Auto Configuration

: Enabled

Onboard 496B IDE Port

: Both
   

IDE 0 Master Mode

: Auto

ISA Bus Clock

: 7.159MHz

IDE 0 Slave Mode

: Auto

LBD# Sample Point

: End of T2

IDE 1 Master Mode

: Auto
   

IDE 1 Slave Mode

: Auto

Cache Write Cycle

: 2 CCLK

IDE Prefetch Read Buffer

: Disable

Cache Burst Read Cycle

: 1 CCLK

IDE HDD Block Mode

: Enable

L2 Cache/DRAM Cycle WS

: 2 CCLK
    
   

Onboard FDC Control

: Enable

DRAM RAS to CAS Delay

: 3 CCLK

Onboard Serial Port 1

: COM1/3F8H

DRAM Write Cycle

: 1 WS

Onboard Serial Port 2

: COM2/2F8H

DRAM Write CAS Pulse

: 2 CCLK

Onboard Parallel Port

: 378H/IRQ7

DRAM CAS Precharge Time

: 1 CCLK

Onboard Printer Mode

: Compatible

DRAM RAS to MA Delay

: 1 CCLK
    

DRAM Speed

: Faster
    

DRAM Slow Refresh

: Disable

Esc: Quit

á â à ß :Select Item
   

F1 : Help

PU/PD/+/- :Modify

CPU Burst Write

: Disabied

F5 : Old Values

(SHIFT)F2: Color

L2 Cache Policy

: Write Back

F6 : Load BIOS Defaults
  

L2 Cache Tag Bits

: 8 bits

F7 : Load Setup Defaults
  

STANDARD CMOS SETUP

PASSWORD SETTING

BIOS FEATURES SETUP

IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP

SAVE & EXIT SETUP

POWER MANAGEMENT SETUP

EXIT WITHOUT SAVING

PCI CONFIGURATION SETUP
  

LOAD BIOS DEFAULTS
  

LOAD SETUP DEFAULTS
  

Esc : Quit

á â à ß :Select Item

F10: Save & Exit Setup

(Shift)F2:Change Color

Sleep Timer, Suspend Timer .....

Power Management

: Disabled

IRQ 4 (COM1)

:Enable

PM Control by APM

: Yes

IRQ 5 (LPT 2)

:Enable

Video Off Option

: Susp,Stby -> Off

IRQ 6 (Floppy Disk)

:Enable

Video Off Method

: V/H SYNC+Blank

IRQ 7 (LPT 1)

:Enable

Suspend Switch

: Disable

IRQ 8 (RTC Alarm)

:Disable

** PM Timers

**

IRQ 9 (IRQ2 Redir)

:Enable

HDD Off After

: Disable

IRQ10(Reserved)

:Enable

Doze Mode

: Disable

IRQ11(Reserved)

:Enable

Standby Mode

: Disable

IRQ12(PS/2 Mouse)

:Enable

Suspend Mode

: Disable

IRQ13(Coprocessor)

:Enable

** PM Events

**

IRQ14(Hard Disk)

:Enable

PCI Master Activity

: Disable

IRQ15(Reserved)

:Enable

COM Ports Activity

: Enable
    

LPT Ports Activity

: Enable

Esc : Quit

á â à ß :Seect Item

HDD Ports Activity

: Enable

F1 : Help

PU/PD/+/-:Modify

DMA Ports Activity

: Disable

F5 : Old Values

(Shift) F2 : Color

VGA Activity

: Disable

F6 : Load BIOS Defaults
  

IRQ3 (COM 2)

: Enabled

F7 : Load Setup Defaults
  

 

STANDARD CMOS SETUP

PASSWORD SETTING

BIOS FEATURES SETUP

IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP

SAVE & EXIT SETUP

POWER MANAGEMENT SETUP
  

PCI CONFIGURATION SETUP
  

LOAD BIOS DEFAULTS
  

LOAD SETUP DEFAULTS
  

Esc : Quit

á â à ß :Select Item

F10: Save & Exit Setup

(Shift)F2:Change Color

Sleep Timer, Suspend Timer .....

PnP BIOS Auto-Config

: Enable

PCI Master Burst Read/Write : Disable
     

Slot 1 Using INT#

: AUTO
  

Slot 2 Using INT#

: AUTO
  

Slot 3 Using INT#

: AUTO
  
     
     
     
     

PCI IRQ Actived By

: Level
  

PCI IDE 2nd Channel

: Enable
  

PCI IDE IRQ Map To

: PCI - AUTO
  

Primary IDE INT#

: A

Esc: Quit á â à ß :Select Item

Secondary IDE INT#

: B

F1 : Help PU/PD/+/-:Modify

Master Arbitration Protocol

: Weak

F5 : Old Values (Shift)F2:Color

CPU->PCI Mem Post Write Buf

: Enable

F6 : Load BIOS Defaults

CPU->PCI Memory Burst Write

: Disable

F7 : Load Setup Defaults
     

 

STANDARD CMOS SETUP

PASSWORD SETTING

BIOS FEATURES SETUP

IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP

SAVE & EXIT SETUP

POWER MANAGEMENT SETUP

EXIT WITHOUT SAVING

PCI/GREEN FUNCTION SETUP
  

LOAD BIOS DEFAULTS
  

LOAD SETUP DEFAULTS
  

Esc : Quit

á â à ß :Select Item

F10: Save & Exit Setup

(SHIFT)F2:Change Color

Save data to CMOS & Exit setup

STANDARD CMOS SETUP

PASSWORD SETTING

BIOS FEATURES SETUP

IDE HDD AUTO DETECTION

CHIPSET FEATURES SETUP

SAVE & EXIT SETUP

POWER MANAGEMENT SETUP

EXIT WITHOUT SAVING

PCI/GREEN FUNCTION SETUPLOAD
  

LOAD BIOS DEFAULTS

SAVE to COME and EXIT (Y/N):Y

LOAD SETUP DEFAULTS
  

Esc : Quit
  

F10: Save & Exit Setup

(SHIFT)F2:Change Color

Save data to CMOS & Exit setup

 

Back to motherboard page

Home