DFI C586HX C586HX User manual

C586HX

Rev. D
System Board
User’s Manual

+

- C30161005 -

FCC 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.

2. Shielded interface cables must be used in order to comply with the
emission limits.

The manufacturer makes no warranties with respect to this documenta­tion and disclaims any implied warranties of merchantability, quality, or
fitness for any particular purpose. The information in this document is
subject to change without notice. The manufacturer reserves the right to
make revisions to this publication and to make changes to any and/or
all parts of its content, at any time, without obligation to notify any per­son or entity of such changes. Further, the manufacturer assumes no
responsibility for any errors that may appear in this document.

Table of Contents

Chapter 1: Introduction............................................................ 5

Features and Specifications .................................................. 6

Package Checklist .............................................................. 8

Chapter 2: Hardware Installation ............................................... 9

Preparing the Area.............................................................. 9

Handling the System Board .................................................. 9

Installing the System Board .................................................10

Board Layout ....................................................................12

System Memory ................................................................13

Installing a SIM Module .................................................15

Cache Memory .................................................................15

Installing the Cache Module ...........................................16

CPU Installation ................................................................16

Jumper Settings for Intel CPUs........................................17

Jumper Settings for Cyrix CPUs ......................................18

Jumper Settings for AMD-K5 CPUs ..................................19

Installing Upgrade CPUs................................................20

Installing Fan/Heatsink for Cyrix CPUs ..............................22

Jumper Settings for CMOS Clear ..........................................23

Jumper Settings for Display..................................................23

Built-in Ports.....................................................................24

Serial Ports.................................................................24

PS/2 Mouse Port..........................................................24

Parallel Port ................................................................25

Floppy Disk Drive Controller ...........................................25

IDE Hard Disk Interface .................................................26

Universal Serial Bus Connectors......................................28

Installing Expansion Cards...................................................29

Chapter 3: Software Installation ...............................................30

Award BIOS CMOS Setup Utility ...........................................30

Standard CMOS Setup..................................................31

BIOS Features Setup ....................................................35

Chipset Features Setup .................................................39

Power Management Setup .............................................40

PNP/PCI Configuration Setup..........................................42

Load BIOS Defaults ......................................................44

Load Setup Defaults .....................................................44

Integrated Peripherals ...................................................45

Supervisor Password ....................................................47

User Password ............................................................48

IDE HDD Auto Detection................................................48

HDD Low Level Format .................................................51

Save & Exit Setup ........................................................52

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

System Error Report ..........................................................52

Driver Installation...............................................................54

Chapter 4: Troubleshooting Checklist ............................................. 55

Appendix A: Types of Modules ......................................................59

Appendix B: Memory and I/O Maps................................................60

Appendix C: Connectors ..............................................................62

4

Chapter 1

Introduction

The C586HX, equipped with a 321-pin Zero Insertion Force (ZIF) CPU
socket, is a Pentium processor-class system board supporting Intel
Pentium CPUs running at 75MHz, 90MHz, 100MHz, 120MHz, 133MHz,
150MHz, 166MHz and 200MHz frequencies. The C586HX also supports
Cyrix P120+/P133+/P150+/P166+ and AMD-K5 PR75/PR90/PR100
CPUs.

The C586HX supports 8MB to 256MB of system memory using EDO or
fast page mode DRAM. It is equipped with 4 SIMM sockets allowing
you to install x32 or x36 SIMMs. The x36 SIMM supports parity check­ing which informs the user of memory failure and prevents error accu­mulation. The system board also supports 256KB or 512KB pipeline
burst SRAM and provides easy cache upgrades using a 256KB cache
module.

The C586HX design is based on the Peripheral Component Intercon­nect (PCI) local bus and Industry Standard Architecture (ISA) stan­dards. It is equipped with 3 dedicated PCI slots, 3 dedicated 16-bit ISA
slots and 1 shared PCI/ISA slot.

The C586HX board has two bus master PCI IDE connectors. Bus mas­tering reduces CPU use during disk transfer. This system board is also
equipped with two NS16C550A-compatible serial ports, an SPP/ECP/
EPP parallel port, a floppy disk drive controller, one PS/2 mouse port,
one PS/2 or AT keyboard connector, two USB connectors and one IrDA
header for wireless connectivity between your computer and peripheral
devices.

5

Features and Specifications

Processor

• Intel Pentium 75/90/100/120/133/150/166/200MHz

• Future Pentium OverDrive processor

• Cyrix P120+/P133+/P150+/P166+

• AMD-K5™ PR75/PR90/PR100

• Dual voltage CPUs supported (Multimedia Accelerated CPUs ­MMX )

Chipset

• Intel 82430HX PCIset

Cache Memory

• 256KB or 512KB pipeline burst, direct map write-back cache
installed on the system board

- Onboard 256KB: upgradeable with a 256KB cache module for a

maximum of 512KB cache

- Onboard 512KB: maximum cache memory (no cache module slot)

System Memory

• 8MB to 256MB onboard memory

• Four 72-pin SIMM sockets

• Uses EDO or fast page mode x32 or x36 DRAM, 60 or 70ns, 5V

• ECC and parity check supported (using x36 DRAM)

BIOS

• Award BIOS, Windows 95 Plug and Play compatible

• Flash EPROM for easy BIOS upgrades

Energy Efficient Design

• System power management supported

• CPU stopped clock control

• Hardware supports SMI green mode

• Microsoft/Intel APM compliant

• External power management switch supported

6

PCI IDE Interface

• PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up to

16.6MB/sec.)

• DMA Mode 2 Bus Master IDE (data transfer rate up to 22.2MB/sec.)

• Bus mastering reduces CPU utilization during disk transfer

• ATAPI IDE CD-ROM supported

Integrated I/O

• SMC super I/O controller

• Two NS16C550A-compatible high speed UARTs

• One SPP/ECP/EPP parallel port

• Supports 360KB, 720KB, 1.2MB, 1.44MB, and 2.88MB floppy
drives

CPU Socket

• 321-pin ZIF socket (Intel Socket 7)

• Supports future low-voltage CPUs

Connectors

• 2 Universal Serial Bus connectors

• 1 IrDA TX/RX connector

• 2 serial ports

• 1 parallel port

• 2 IDE connectors

• 1 floppy connector

• 1 PS/2 mouse port

• 1 PS/2 or AT keyboard connector

Expansion Slots

• 3 dedicated PCI slots

• 3 dedicated 16-bit ISA slots

• 1 shared PCI/ISA slot

PCB

• 4 layers, Baby AT form factor

• 25cm (9.84") x 22cm (8.66")

7

Package Checklist

The C586HX package contains the following items:

• The C586HX system board

• The C586HX user’s manual

• Serial, mouse and printer port cables
Option 1:

- One card-edge bracket with a 9-pin and 25-pin serial port cables

- One card-edge bracket with a 25-pin printer port cable and a PS/2

mouse port cable

Option 2:

- One card-edge bracket with two 9-pin serial port cables and a

PS/2 mouse port cable

- One 25-pin printer port cable for chassis mounting

• One 40-pin IDE hard disk cable

• One 34-pin floppy disk drive cable

• One IDE driver diskette

• Five jumper caps

• One card-edge bracket with two USB port cables (optional)

• Cache module (optional)

If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

8

Chapter 2

Hardware Installation

This chapter summarizes the steps to install the C586HX system board
into your system unit. It also includes a description of the area in which
you must work and directions for memory installation. Before installing
the system board, obtain the memory you plan to install. Refer to the
System Memory section for the number and type of SIM modules
needed for the amount of memory you require.

Preparing the Area

Before unpacking the system board, make sure the location you have
selected is relatively free of dust and static electricity. Excessive expo­sure to dust, static electricity, direct sunlight, excessive humidity, ex­treme cold, and water can damage the operational capabilities of your
system board. Avoid placing the unit on surfaces such as carpeted
floors. These areas attract static electricity which can damage circuits
on your system board.

Make sure the power source has a properly grounded, three-pronged
socket. It is essential that the power connection be properly grounded
for correct functioning of your system board. For further protection, we
recommend that you use a surge suppressor. This will protect the sys­tem board from damage that may result from a power surge on the
electrical line.

Move items that generate magnetic fields away from your system board
since magnetic fields can also damage your system board. Once you
have selected the ideal location, unpack the C586HX system board
carefully.

Handling the System Board

It is quite easy to inadvertently damage your system board even before
installing it in your system unit. Static electrical discharge can damage
computer components without causing any signs of physical damage.
You must take extra care in handling the system board to ensure
against electrostatic build-up.

9

Static Electricity Precautions

1. To prevent electrostatic build-up, leave the board in its anti-static
bag until you are ready to install it.

2. Wear an antistatic wrist strap.

3. Do all preparation work on a static-free surface with the system
board components facing up.

4. Hold the system board only by its edges. Be careful not to touch
any of the components, contacts or connections, especially gold
contacts, on the board.

5. Avoid touching the pins or contacts on all modules and connectors.
Hold modules and connectors by their ends.

Warning:

Electrostatic discharge (ESD) can damage your 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.

Installing the System Board

If you are installing the C586HX system board, the following outlines the
basic installation steps. Before installing the system board into your sys­tem unit, you should prepare the tools you will need.

You will need:

• One medium size, flat-bladed screwdriver

• One medium Phillips screwdriver

• One needle-nosed pliers

• One nutdriver

1. Unlock your system unit. Turn off the power and disconnect all
power cords and cables.

10

2. Remove the system unit cover. Refer to the manufacturer’s instruc­tions if necessary.

3. Detach all connectors from the old system board and remove ex­pansion cards seated in any of the expansion slots.

4. Loosen the screws holding the original system board and remove
the board from the system. Save the screws.

5. Remove the C586HX from its original packing box. Be careful to
avoid touching all connectors and pins on the board. Please refer to
the handling instructions on pages 9-10 for proper handling tech­niques.

6. Insert the SIMMs into the SIMM banks on the C586HX. The quan­tity and location of the SIMMs depends on the memory configura­tion and type of modules you intend to use.

7. Insert the cache module, if any, into the cache module slot on the
C586HX. Refer to the Cache Memory section for upgrading your
cache memory.

8. Install the CPU. Be sure pin 1 of the CPU is aligned with pin 1 of
the socket.

9. Set the corresponding jumpers.

10. Install the prepared C586HX system board into the case and re­place the screws.

11. Reinstall all cards and connectors and replace the system unit

cover. Reconnect all power cords and cables.

11

Board Layout

square denotes pin 1

12

System Memory

The SIMM (Single In-line Memory Module) sockets are divided into two
banks on the system board, Bank 0 and Bank 1. Each bank consists of
2 SIMM sockets. Refer to page 12 for the locations of the SIMM sockets.

You will need either 2 or 4 pieces of SIM modules, depending on the
amount of memory you intend to install. Make sure you insert the same
type of SIMMs in one bank. You can install SIMMs in either of the
banks, Bank 0 or Bank 1, but you must populate one bank first before
going to the next bank.

The C586HX system board can support 8MB to 256MB of memory us­ing 1MBx32/x36, 2MBx32/x36, 4MBx32/x36, 8MBx32/x36, or 16MBx32/
x36 72-pin SIMMs. The table below shows the supported SIM modules
and their corresponding memory sizes.

SIMMs

1MBx32/x36
2MBx32/x36
4MBx32/x36
8MBx32/x36
16MBx32/x36

Memory Size

4MB
8MB
16MB
32MB
64MB

The table below summarizes the bank locations and modules needed
for the corresponding memory sizes.

Memory Size

8MB

8MB
16MB
16MB
16MB
24MB
24MB

SIMM1

1MBx32/x36

—

2MBx32/x36

—
1MBx32/x36
1MBx32/x36
2MBx32/x36

Bank 0

SIMM2

1MBx32/x36

—

2MBx32/x36

—
1MBx32/x36
1MBx32/x36
2MBx32/x36

1MBx32/x36

2MBx32/x36
1MBx32/x36
2MBx32/x36
1MBx32/x36

SIMM3

—

—

Bank 1

SIMM4

—

1MBx32/x36

—
2MBx32/x36
1MBx32/x36
2MBx32/x36
1MBx32/x36

13

Bank 0

Bank 1

Memory Size

32MB
32MB
32MB
40MB
40MB
48MB
48MB
64MB
64MB
64MB
72MB
72MB
80MB
80MB
96MB

96MB
128MB
128MB
128MB
136MB
136MB
144MB
144MB
160MB
160MB
192MB
192MB
256MB

SIMM1

4MBx32/x36

—
2MBx32/x36
1MBx32/x36
4MBx32/x36
2MBx32/x36
4MBx32/x36
8MBx32/x36

—
4MBx32/x36
1MBx32/x36
8MBx32/x36
2MBx32/x36
8MBx32/x36
4MBx32/x36
8MBx32/x36

16MBx32/x36

—
8MBx32/x36
1MBx32/x36

16MBx32/x36

2MBx32/x36

16MBx32/x36

4MBx32/x36

16MBx32/x36

8MBx32/x36

16MBx32/x36
16MBx32/x36

SIMM2

4MBx32/x36

—
2MBx32/x36
1MBx32/x36
4MBx32/x36
2MBx32/x36
4MBx32/x36
8MBx32/x36

—
4MBx32/x36
1MBx32/x36
8MBx32/x36
2MBx32/x36
8MBx32/x36
4MBx32/x36
8MBx32/x36

16MBx32/x36

—
8MBx32/x36
1MBx32/x36

16MBx32/x36

2MBx32/x36

16MBx32/x36

4MBx32/x36

16MBx32/x36

8MBx32/x36

16MBx32/x36
16MBx32/x36

SIMM3

—
4MBx32/x36
2MBx32/x36
4MBx32/x36
1MBx32/x36
4MBx32/x36
2MBx32/x36

—
8MBx32/x36
4MBx32/x36
8MBx32/x36
1MBx32/x36
8MBx32/x36
2MBx32/x36
8MBx32/x36
4MBx32/x36

—

16MBx32/x36

8MBx32/x36

16MBx32/x36

1MBx32/x36

16MBx32/x36

2MBx32/x36

16MBx32/x36

4MBx32/x36

16MBx32/x36

8MBx32/x36

16MBx32/x36

SIMM4

—
4MBx32/x36
2MBx32/x36
4MBx32/x36
1MBx32/x36
4MBx32/x36
2MBx32/x36

—
8MBx32/x36
4MBx32/x36
8MBx32/x36
1MBx32/x36
8MBx32/x36
2MBx32/x36
8MBx32/x36
4MBx32/x36

—

16MBx32/x36

8MBx32/x36

16MBx32/x36

1MBx32/x36

16MBx32/x36

2MBx32/x36

16MBx32/x36

4MBx32/x36

16MBx32/x36

8MBx32/x36

16MBx32/x36

14

Installing a SIM Module

A SIM module simply snaps into a socket on the system board. Pin 1 of
the SIM module must correspond with Pin 1 of the socket.

notch

key

1. Position the SIMM above the socket with the “notch” in the module
aligned with the “key” on the socket.

2. Seat the module at a 45° angle into the bank. Make sure it is com­pletely seated. Tilt the module upright until it locks in place in the
socket.

Cache Memory

The C586HX system board can support 256KB or 512KB pipeline burst,
direct map write-back cache SRAM. Your system board may come with
256KB or 512KB cache mounted at locations U22 and U23 of the sys­tem board.

If your system board is mounted with 256KB cache, you may upgrade
your cache memory to 512KB by installing a 256KB cache module in
the 160-pin cache module slot (SSM1). Refer to page 12 for the loca­tions of the SRAMs and cache module slot. If your system board is
mounted with 512KB cache, which is the maximum cache memory sup­ported by the system board, the cache module slot will not be installed
on the system board.

Warning:

We highly recommend that you use the T2BSM32-256 cache module. If
you are using a cache module other than the one recommended above,
make sure your cache module meets the Intel COAST 2.x specification.
Severe damage might occur on the cache module or system board if
you insert modules other than those specified above.

15

Installing the Cache Module

Locate the 160-pin cache module slot on the system board (SSM1).
See page 12 for the location. Position the cache module above the slot.
Make sure pin 1 of the cache module is aligned with pin 1 of the slot.
Carefully slide the module into the slot. Press firmly on the top of it to
seat it properly.

Note:

With the cache module installed in the cache module slot, the compo­nents on the solder side of the add-in card in PCI Slot 4 must not pro­trude more than 5mm.

CPU Installation

The C586HX allows for easy installation of CPUs. Make sure all jumpers
are set correctly before applying power or you may damage the CPU or
system board. Please see the jumper settings on the following pages. Use
the needle-nosed pliers to move the jumpers if necessary. The table below
shows the External Bus Clock of the CPUs supported by the C586HX sys­tem board and their corresponding PCI Clock and Bus Clock.

16

External Bus Clock

50MHz
55MHz
60MHz
66MHz

PCI CLK

25MHz

27.5MHz
30MHz
33MHz

Bus CLK

8.333MHz

9.1666MHz

7.5MHz

8.25MHz

Jumper Settings for Intel CPUs

1

2

JP12

1-2 Off, 3-4 Off

1-2 On, 3-4 Off

1-2 Off, 3-4 On

1-2 On, 3-4 On

JP12

3

4

51

6

JP10

1.5x

2x

2.5x

3x

Freq. Ratio

2

51

6

JP20

2

2

3

Intel CPUs

75/90/100MHz

120/133MHz

4

150/166MHz

200MHz

JP21

2

1

3

4

JP7

2

1

JP21

1-2, 3-4 Off

1-2, 3-4 Off

1-2, 3-4 Off

1-2, 3-4 On

1-2, 3-4 On

JP20

1-2 On

3-4 On

5-6 On

3-4 On

3-4 On

JP10

1-3, 2-4 On

1-3, 2-4 On

1-3, 2-4 On

3-5, 4-6 On

3-5, 4-6 On

JP7

1-2 On, 3-4 On

1-2 On, 3-4 Off

1-2 Off, 3-4 On

JP9

3-4 On

3-4 On

3-4 On

3-4 On

1-2 On

4

JP9

3

1

CLK

50MHz

60MHz

Ext. Bus

66MHz

Voltages

2.5V

2.8V

2.9V

3.3V*

(VR/STD)

3.5V

(VRE)

Warning:

The default setting of JP9, JP10, JP20 and

JP21 is 3.3V. If the voltage of your CPU is

not 3.3V, make sure you set JP9, JP10,

JP20 and JP21 according to the voltage of

your CPU, otherwise, your system will

hang.

Intel CPUs

75MHz

90/120/150MHz

100/133/166/200MHz

17

Jumper Settings for Cyrix CPUs

JP12

1

2

1-2 On, 3-4 Off

JP12

3

4

2x

Freq. Ratio

Cyrix CPUs

P120+/P133+/

P150+/P166+

3

4

JP21

2

1

3

4

JP7

2

1

JP21

1-2, 3-4 Off

1-2, 3-4 Off

1-2, 3-4 Off

1-2, 3-4 On

1-2, 3-4 On

JP20

1-2 On

3-4 On

5-6 On

3-4 On

3-4 On

51

6

JP10

2

51

6

JP20

2

2

4

JP9

3

1

JP10

1-3, 2-4 On

1-3, 2-4 On

1-3, 2-4 On

3-5, 4-6 On

3-5, 4-6 On

JP7

1-2 Off, 3-4 Off

1-2 On, 3-4 On

1-2 On, 3-4 Off

1-2 Off, 3-4 On

CLK

50MHz

55MHz

60MHz

Ext. Bus

66MHz

JP9

3-4 On

3-4 On

3-4 On

3-4 On

1-2 On

2.5V

2.8V

2.9V

3.3V*

Voltages

3.5V

Warning:

The default setting of JP9, JP10, JP20 and

JP21 is 3.3V. If the voltage of your CPU is

not 3.3V, make sure you set JP9, JP10,

JP20 and JP21 according to the voltage of

your CPU, otherwise, your system will

hang.

18

P120+

P133+

P150+

P166+

Cyrix CPUs

Jumper Settings for AMD-K5 CPU

JP12

1

2

1-2 Off, 3-4 Off

JP12

3

4

5

6

1.5x

Freq. Ratio

AMD-K5 CPUs

PR75 75MHz

PR90 90MHz

PR100 100MHz

3

4

JP21

2

1

3

4

JP7

2

1

JP21

1-2, 3-4 Off

1-2, 3-4 Off

1-2, 3-4 Off

1-2, 3-4 On

1-2, 3-4 On

JP20

1-2 On

3-4 On

5-6 On

3-4 On

3-4 On

2

1

JP10

2

1
5

6

JP20

2

1

4

JP9

3

JP10

1-3, 2-4 On

1-3, 2-4 On

1-3, 2-4 On

3-5, 4-6 On

3-5, 4-6 On

JP7

JP9

3-4 On

3-4 On

3-4 On

3-4 On

1-2 On, 3-4 On

1-2 On, 3-4 Off

1-2 Off, 3-4 On

1-2 On

2.5V

2.8V

2.9V

3.3V*

CLK

50MHz

60MHz

Ext. Bus

AMD-K5 CPUs

66MHz

PR75 75MHz

PR90 90MHz

PR100 100MHz

Voltages

3.5V

Warning:

The default setting of JP9, JP10, JP20 and

JP21 is 3.3V. If the voltage of your CPU is

not 3.3V, make sure you set JP9, JP10,

JP20 and JP21 according to the voltage of

your CPU, otherwise, your system will

hang.

19

Installing Upgrade CPUs

The C586HX is equipped with a 321-pin Zero Insertion Force (ZIF)
socket at location U27 of the system board. Refer to page 12 for the
location of the ZIF socket. This socket is designed for easy removal of
an old CPU and easy insertion of an upgrade CPU. The ZIF socket
allows you to carefully place the new CPU into its position. If you need
to apply excessive force to insert the CPU, you are not installing the
CPU correctly.

Warning:

Open the socket only if you are actually installing a CPU. The warranty
on the original CPU will be voided if the S/N seal is broken. Before
proceeding with the upgrade, take note of the following. The micropro­cessor and heatsink may be hot if the system has been running. To
avoid the possibility of a burn, power the system off and let the proces­sor and heatsink cool for 20 minutes.

The 321-pin ZIF socket consists of five rows of pin holes on each side.
To prevent improper CPU installation, the ZIF socket has a Plug/Keying
mechanism. Several holes in the socket are plugged so that the CPU
will go in only one way. If you cannot easily insert the CPU, verify that
pin 1 of the CPU is aligned with pin 1 of the socket.

Zero Insertion Force (ZIF) Socket

To install an upgrade CPU, do the following:

1. Make sure the handle on the side of the ZIF socket is up. To raise
the handle, push it down, slightly pull it out to the side, then raise it
as far as it will go. It may be necessary to initially apply a small

20

amount of sideways force to free the handle from its retaining “tab”.
Once clear of the “tab”, the handle will open relatively easily. The
top plate will slide back. Do not use screwdrivers or other tools to
open the socket, or you may damage the system or socket.

Handle

Lifting the Handle

2. Once the lever is completely up, remove the old CPU carefully by
lifting it straight out of the socket. You are now ready to insert the
new CPU.

Pin 1

3. Position the CPU above the ZIF socket. Make sure pin 1 of the
CPU is aligned with pin 1 of the socket. Lower the chip until the
pins are inserted properly in their corresponding holes. Remember
that very little force is needed to install the CPU. If the CPU is not
easily inserted, verify whether or not pin 1 of the CPU is aligned
with pin 1 of the socket. Applying too much pressure can damage
the CPU or the socket.

21

Pin 1

Positioning the CPU Above the ZIF Socket

4. Push the handle down until the handle locks into place. The top
plate will slide forward. You will feel some resistance as pressure
starts to secure the CPU in the socket. This is normal and will not
damage the CPU. However, if the handle is not completely closed,
damage to the CPU and/or system board may result.

Installing A Fan/Heatsink for Cyrix CPUs

If you are using a Cyrix CPU, you must choose a fan/heatsink which is
made for Cyrix processors. Position the fan/heatsink on the CPU such
that the air from the side of the fan/heatsink will flow across the heat
regulators on the system board. See the figure below.

Clearance Requirements

Your CPU comes with a heatsink mounted on top. To maintain proper
airflow once the upgrade is installed on the system board, the CPU and
heatsink require certain space clearances. The clearance above the
CPU’s fan/heatsink must be at least 0.4 inches. The clearance on at
least 3 of 4 sides of the processor and heatsink must be at least 0.2

22

inches. All cables (for floppy drive, hard drive, CD-ROM, etc.) must be
routed clear of the CPU and its airspace.

Fan Exhaust

The CPU must be kept cool by using a fan with heatsink. The tempera­ture of the air entering the fan/heatsink cannot exceed 45oC (113oF).
The ambient or room temperature must be below 37oC (99oF).

Jumper Settings for CMOS Clear

Jumper JP8

CMOS Clear
If, for some reason, the CMOS becomes corrupted, the system can be

reconfigured with the default values stored in the ROM BIOS. To load
the default values, power off your system and set JP8 to On. Then
power on your system for 5 seconds and turn it off again. Set JP8 back
to its default setting, Off.

Off: Normal (default)

On: CMOS Clear

Jumper Settings for Display

Jumper JP4

Display Type Select
Jumper JP4 sets the display adapter to color or mono. This jumper

must match the type of display adapter installed. If you change your
video adapter, make sure this jumper is changed accordingly.

1
2
3

1-2 On: Color (default)

2-3 On: Mono

1
2
3

23

Built-in Ports

The C586HX system board is equipped with two serial ports, one paral­lel printer port, one FDD connector, two IDE hard disk shrouded head­ers, one PS/2 mouse connector and two USB connectors. Refer to page
12 for the locations of the built-in connectors and pin 1 of those connec­tors.

Serial Ports

The built-in serial ports are RS-232C asynchronous communication
ports with 16C550A-compatible UARTs that can be used with modems,
serial printers, remote display terminals, and other serial devices. They
use the following system I/O addresses:

Port Configuration

Serial Port 1
Serial Port 2

* Default

COM1

3F8h*
3F8h

COM2

2F8h
2F8h*

COM3

3E8h
3E8h

COM4

2E8h
2E8h

Connecting the Serial Ports

Two serial port cables mounted on a card-edge bracket are provided
with the system board. Connect one serial port cable to connector J2
for COM 1 primary serial port and the other serial port cable to connec­tor J3 for the COM 2 secondary serial port. Make sure the colored
stripes on the ribbon cables are aligned with pins 1 of connectors J2
and J3. Mount the card-edge bracket to the system chassis.

PS/2 Mouse Port

The PS/2 mouse port is a 6-pin connector on the system board. Attach
the 6-pin mouse port cable, which is mounted on a card-edge bracket,
to connector J1. Make sure the red wire on the PS/2 mouse connector
is aligned with pin 1 of connector J1. Mount the card-edge bracket to
the system chassis.

24

Parallel Port

The C586HX system board has a standard connector for interfacing
your PC to a parallel printer. The parallel port on your system board can
be set to any of the following system I/O addresses:

I/O Address 3BC-3BE Hex

378-37A Hex (default)
278-27A Hex

Connecting the Parallel Printer Port

Attach the DB-25 printer port cable to connector J5 on the C586HX system
board. Make sure the colored stripe on the ribbon cable aligns with pin 1 of
connector J5. Use a small nutdriver to mount the cable into a DB-25 cutout
in the system chassis. If your printer port cable is attached to a card-edge
bracket, connect the cable to connector J5 on the system board and
mount the card-edge bracket to the system chassis.

Floppy Disk Drive Controller

The C586HX system board has a built-in floppy disk controller that sup­ports two standard floppy disk drives. You can install any 360KB,
720KB, 1.2MB, 1.44MB, or 2.88MB floppy disk drives.

Connecting the Floppy Disk Cable

1. Install the 34-pin header connector into the floppy disk connector
(J4) on the system board. The colored edge of the ribbon should be
aligned with pin 1 of connector J4.

2. Install the other 34-pin header connector(s) into the disk drive(s).
Align the colored edge of the daisy chained ribbon cable with pin 1
of the drive edge connector(s). The end-most connector should be
attached to the drive you want to designate as Drive A.

25

IDE Hard Disk Interface

The C586HX system board is equipped with two PCI IDE shrouded
headers that will interface up to four Enhanced IDE (Integrated Drive
Electronics) hard disk drives.

Note:

Only Enhanced IDE hard drives or ATAPI CD-ROMs can be connected
to the IDE interface.

Connecting the IDE Hard Disk Interface

To prevent improper IDE cable installation, each PCI IDE shrouded
header has a keying mechanism. The 40-pin connector on the IDE
cable can be placed into the header only if pin 1 of the connector is
aligned with pin 1 of the header.

Header

Note:

An IDE cable with a standard 40-pin connector (without the keying
mechanism) can be installed in the PCI IDE shrouded header. Be ex­tremely careful to match the colored edge of the ribbon with pin 1 of the
header.

Connecting the Hard Disk Cable

1. Connect the cable to the system board. If you are connecting two

hard drives, install the 40-pin connector of the IDE cable into the
primary IDE shrouded header (connector J6). If you are adding a
third or fourth IDE device, install the 40-pin connector of the other
IDE cable into the secondary IDE shrouded header (connector J7).

26

2. Connect the cable to the devices. Install the other 40-pin header

connector(s) into the device making sure to match the colored edge
of the ribbon cable aligned with pin 1 of the drive edge
connector(s).

Note:

Refer to your disk drive user’s manual for information about selecting
proper drive switch settings.

Adding a Second IDE Hard Drive

When using two IDE drives, one must be set as the master and the
other as the slave. Follow the instructions provided by the drive manu­facturer for setting the jumpers and/or switches on the drives.

We recommend that you use Enhanced IDE hard drives from the same
manufacturer. In a few cases, drives from two different manufacturers
will not function properly when used together. The problem lies in the
hard drives, not the C586HX system board.

Preparing an IDE Drive for Use

IDE disk drives are already low-level formatted, with any bad-track er­rors entered, when shipped by the drive manufacturer. Do not attempt
to do a low-level format or you may cause serious damage to the drive.
To use an IDE drive, you need to enter the drive type (this information
is provided by the drive manufacturer) into the system’s CMOS setup
table. Then run FDISK and FORMAT provided with DOS. You may also
use the IDE HDD Auto Detection function which will allow the BIOS to
auto detect your hard drive type. Refer to the IDE HDD Auto Detection
section for details.

Warning:

Do not run FDISK and FORMAT programs on a drive that has already
been formatted or you will lose all programs and data stored on the
drive.

27

Using C586HX with CD-ROM Drives

Important:

If you encountered problems while using an ATAPI CD-ROM drive that
is set in Master mode, please set the CD-ROM drive to Slave mode.
Some ATAPI CD-ROMs may not be recognized and cannot be used if
incorrectly set in Master mode.

Universal Serial Bus Connectors

The C586HX system board is equipped with two USB connectors on
locations JP1 and JP2 on the system board. USB allows data exchange
between your computer and a wide range of simultaneously accessible
peripherals.

Connecting the USB Ports

As an option, one card-edge bracket mounted with two USB port cables
may be provided with the system board. Connect the USB port cables
to connectors JP1 and JP2 on the system board. Make sure the red
wires of the USB cables are aligned with pin 1 of connectors JP1 and
JP2. Mount the card-edge bracket to the system chassis.

Note:

Make sure “USB Controller” in the Integrated Peripherals setup of the
Award BIOS is Enabled.

USB port cables (optional)

28

Installing Expansion Cards

The C586HX system board is equipped with 3 dedicated PCI slots, 3
dedicated 16-bit ISA slots and 1 shared PCI/ISA slot. All PCI slots are
bus masters. You can only install one card in one or the other of the
shared slots at a time; you cannot install devices in both slots. Refer to
page 12 for the locations of the expansion slots.

Due to the size of the CPU with its accompanying heatsink/fan compo­nent, the length of the add-in cards in PCI slots 1 and 2 and ISA slots 1
and 2 is limited to 18cm (measured from the bracket of the card).

The length of the add-in card in PCI slot 4 is limited to 18cm only if the
components on the solder side of the card protrude more than 5mm.

29

Chapter 3
Software Installation

After you power up your system, the BIOS message appears on your
screen and the memory count begins.

After the memory test, the following message will appear on the screen:

Press DEL to enter setup

If the message disappears before you respond, restart your system or
press the “Reset” button located on the front panel of your computer.
You may also restart the system by pressing the <Ctrl> <Alt> and
<Del> keys simultaneously.

If you have set a password and selected “System” in the Security Op­tion of the BIOS Features Setup menu, you will be prompted for the
password every time the system is rebooted or any time you try to enter
Setup. Type in the correct password and press <Enter>.

If you selected “Setup” in the Security Option, you will be prompted for
the password only when you try to enter Setup. Refer to the “BIOS
Features Setup” section for more information.

Award CMOS Setup Utility

Press <Ctrl> <Alt> <Esc> simultaneously or <Del> to enter the Setup
utility. A screen similar to the one on the next page will appear.

30

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT SETUP
PNP/PCI CONFIGURATION
LOAD BIOS DEFAULTS
LOAD SETUP DEFAULTS

:Quit

ESC

:Sve & Exit Setup

F10

Time, Date, Hard Disk Type...

INTEGRATED PERIPHERALS
SUPERVISOR PASSWORD
USER PASSWORD
IDE HDD AUTO DETECTION
HDD LOW LEVEL FORMAT
SAVE & EXIT SETUP
EXIT WITHOUT SAVING

↑↓→←

(Shift) F2

:Select Item
:Change Color

Use the arrow keys to highlight the option you want and press <Enter>.
The following describes each of these options.

Note:

The settings on the BIOS setup screens on the following pages are for
reference only. Some of the settings will vary according to your
system’s configuration and should not be referred to as the standard
default setting.

Standard CMOS Setup

Use the arrow keys to highlight “Standard CMOS Setup” and press
<Enter>. A screen similar to the one below will appear.

Date (mm:dd:yy) : Sun, Sep 8 1996
Time (hh:mm:ss) : 9 : 18 : 58

HARD DISKS
Primary Master
Primary Slave
Secondary Master
Secondary Slave

DriveA :1.44M, 3.5in.
DriveB :None
Video :EGA/VGA
Halt on :All Errors

ESCF1:Quit

:Help

TYPE
:Auto
:Auto
:Auto
:Auto

SIZE

0
0
0
0

ROM PCI/ISA BIOS

STANDARD CMOS SETUP

AWARD SOFTWARE, INC.

CYLS

0
0
0
0

↑↓→←

(Shift)F2

HEAD

0
0
0
0

:Select Item
:Change

PRECOMP

LANDZ
0
0
0
0

SECTOR
0
0
0
0

Base Memory : 640K

Extended Memory : 31744K
Other Memory : 384K

Total Memory : 32768K

PU/PD/+/- : Modify

MODE

Auto

0

Auto

0

Auto

0

Auto

0

31

Date

The date format is <day>, <month>, <date>, <year>.

Day
Month
Date
Year

Displays a day, from Sunday to Saturday
Displays the month, from January to December
Displays the date, from 1 to 31
Displays the year, from 1900 to 2099

Time

The time format is <hour>, <minute>, <second>. The time is based on
the 24-hour military-time clock. For example, 1 p.m. is 13:00:00.

Hour
Minute
Second

Displays hours from 00 to 23
Displays minutes from 00 to 59
Displays seconds from 00 to 59

Primary Master, Primary Slave, Secondary Master and Secondary
Slave

These categories allow you to enter the appropriate specifications for
the type of hard disk drive(s) installed in your system. There are 45
predefined types and 4 user definable types for IDE hard drives. Type 1
to Type 45 are predefined. Type User is user-definable.

Press <PgUp> or <PgDn> to select a numbered hard disk type or type
the number and press <Enter>. The hard disk will not work properly if
you enter improper information for this category. You can use Type
“User” to define your own drive type manually.

If you select Type “User”, you will need to know the information listed
below. Enter the information and press <Enter>. This information should
be included in the documentation from your hard disk vendor or the
system manufacturer.

32

If the controller of the HDD interface is ESDI, you must select “Type 1”.
If the controller of the HDD interface is SCSI, you must select “None”.
If you select Type “Auto”, the BIOS will auto-detect the HDD & CD-ROM

drive at the POST stage and show the IDE for the HDD & CD-ROM
drive.

Type
Cyls
Heads
Precomp
Landzone
Sectors
Mode

Drive type
Number of cylinders
Number of heads
Write precomp
Landing zone
Number of sectors
Mode type

If a hard disk has not been installed, select None and press <Enter>.

Drive A and Drive B

These categories identify the types of floppy disk drives installed. The
following are the options for drives A and B.

None
360K, 5.25 in.

1.2M, 5.25 in.
720K, 3.5 in.

1.44M, 3.5 in.

2.88M, 3.5 in.

No floppy drive is installed
5-1/4 inch PC-type standard drive; 360 kilobyte capacity
5-1/4 inch AT-type high-density drive; 1.2 megabyte capacity
3-1/2 inch double-sided drive; 720 kilobyte capacity
3-1/2 inch double-sided drive; 1.44 megabyte capacity
3-1/2 inch double-sided drive; 2.88 megabyte capacity

Note:

Choosing an incorrect type might cause your system to format the floppy
disk improperly, and you will not be able to access your data.

33

Video

This category selects the type of video adapter used for the primary
system monitor. Although secondary monitors are supported, you do not
have to select the type in Setup. The default setting is EGA/VGA (BIOS
default, Setup default).

EGA/VGA

CGA 40
CGA 80
Mono

Enhanced Graphics Adapter/Video Graphics Array. For EGA,
VGA, SEGA, SVGA and PGA monitor adapters.

Color Graphics Adapter. Power up in 40-column mode.
Color Graphics Adapter. Power up in 80-column mode.
Monochrome adapter. Includes high resolution monochrome

adapters.

Halt On

This category determines whether the system will stop if an error is de­tected during power up. The default setting is All Errors (BIOS default,
Setup default).

No Errors
All Errors

All, But
Keyboard

All, But
Diskette

All, But
Disk/Key

The system boot will not stop for any errors detected.
The system boot will stop whenever the BIOS detects a non-

fatal error.
The system boot will not stop for a keyboard error; it will stop

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

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

will stop for all other errors.

Memory

The base memory size, extended memory size and the other memory
size cannot be altered; your computer automatically detects and dis­plays them.

34

Base
Memory

Extended
Memory

Other
Memory

This refers to the amount of base or conventional memory
installed on the system board.

This is the amount of memory located above 1MB in the
memory address map of the CPU.

This memory size refers to the memory located in the ad­dress space between 640K and 1024K. DOS uses this
area to load device drivers to keep base memory free for
application programs. The most appropriate use of this
area is for Shadow RAM.

BIOS Features Setup

The BIOS Features Setup allows you to configure your system for basic
operation. Some entries are defaults required by the system board,
while others, if enabled, will improve the performance of your system or
let you set some features according to your preference.

ROM PCI/ISA BIOS

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

Virus Warning
CPU Internal Cache
External Cache
Quick Power On Self Test
Boot Sequence
Swap Floppy Drive
Boot Up Floppy Seek
Boot Up NumLock Status
Gate A20 Option
Typematic Rate Setting
Typematic Rate (Chars/Sec)
Typematic Delay (Msec)
Security Option
PCI/VGA Palette Snoop
OS Select For DRAM>64MB

: Disabled
: Enabled
: Enabled
: Enabled
: A, C
: Disabled
: Enabled
: On
: Fast
: Disabled
: 6
: 250
: Setup
: Disabled
: Non-OS2

Video BIOS Shadow
C8000-CBFFF Shadow
CC000-CFFFF Shadow
D0000-D3FFF Shadow
D4000-D7FFF Shadow
D8000-DBFFF Shadow
DC000-DFFFF Shadow

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load BIOS Defaults

F7

:Load Setup Defaults

↑↓→←

PU/PD/+/­(Shift) F2

: Enabled
: Disabled
: Disabled
: Disabled
: Disabled
: Disabled
: Disabled

:Select Item
:Modify
:Color

Virus Warning

This category protects the boot sector and partition table of your hard
disk drive. When this item is enabled, the Award BIOS will monitor the
boot sector and partition table of the hard disk drive. If an attempt is
made to write to the boot sector or partition table of the hard disk drive,
the BIOS will halt the system and the following error message will
appear.

35

! WARNING !

Disk boot sector is to be modified

Type “Y” to accept write or “N” to abort write

Award Software, Inc.

After seeing this message, if necessary, you will be able to run an anti­virus program to locate and remove the problem before any damage is
done.

Many disk diagnostic programs which attempt to access the boot sector
table will cause the warning message to appear. If you are running such
a program, we recommend that you first disable this category. Also,
disable this category if you are installing or running certain operating
systems like Windows 95 or the operating system may not install nor work.

Enabled

Disabled

BIOS issues a warning when any program or virus sends a
Disk Format command or attempts to write to the boot sector
of the hard disk drive.

No warning message will appear when the hard disk drive is
accessed.

CPU Internal Cache and External Cache

These categories speed up memory access. The default value is en­abled. Enable the External Cache for better performance.

Enabled
Disabled

Enables the internal/external cache.
Disables the internal/external cache.

Quick Power On Self Test

This category speeds up Power On Self Test (POST) after you power
on your system. If it is set to Enabled, the BIOS will shorten or skip
some check items during POST.

Enabled
Disabled

Enables quick POST.
Normal POST.

36

Boot Sequence

This category determines which drive to search first for the disk operat­ing system (i.e. DOS). The default is A, C.

A, C

C, A

CDROM, C, A

C, CDROM, A

The system will first search for a floppy drive and then a
hard disk drive.

The system will first search for a hard disk drive and
then a floppy drive.

The system will first search for a CD-ROM drive, then a
hard disk drive and then a floppy drive.

The system will first search for a hard disk drive, then a
CD-ROM drive, and then a floppy drive.

Swap Floppy Drive

Enabled

Disabled

When this option is enabled and the system is booting from
the floppy drive, the system will boot from drive B instead of
drive A.

When this option is disabled and the system is booting from
the floppy drive, the system will boot from drive A.

Boot Up Floppy Seek

During POST, the BIOS will determine if the floppy disk drive installed is
40 or 80 tracks. 360K type is 40 tracks while 760K, 1.2M and 1.44M are
all 80 tracks.

Enabled

Disabled

The BIOS will check whether the floppy disk drive installed is
40 or 80 tracks. Note that the BIOS cannot distinguish be­tween 720K, 1.2M or 1.44M drive types as they are all 80
tracks.

The BIOS will not search for the type of floppy disk drive by
track number. Note that there will not be any warning mes­sage if the drive installed is 360KB.

37

Boot Up NumLock Status

This allows you to determine the default state of the numeric keypad.
By default, the system boots up with NumLock on.

On
Off

The function of the numeric keypad is the number keys.
The function of the numeric keypad is the arrow keys.

Security Option

This category allows you to limit access to your system and Setup or
just to Setup.

System

Setup

The system will not boot and access to Setup will be denied if
the correct password is not entered at the prompt.

The system will boot, but access to Setup will be denied if the
correct password is not entered at the prompt.

PCI/VGA Palette Snoop

This is used to select whether to allow MPEG ISA/VESA VGA cards to
work with PCI/VGA or not.

Enabled
Disabled

PCI/VGA working with MPEG ISA/VESA VGA cards.
PCI/VGA not working with MPEG ISA/VESA VGA cards.

OS Select for DRAM > 64MB

This item allows you to access the memory that is over 64MB in OS/2.
The options are: Non-OS2 and OS2.

Video BIOS Shadow

Determines whether video BIOS will be copied to RAM. Video Shadow
will increase the video speed. Note that some graphics boards require
that this option be disabled.

38

Enabled
Disabled

Video shadow is enabled.
Video shadow is disabled.

C8000-CBFFF Shadow to DC000-DFFFF Shadow

These categories determine whether option ROMs will be copied to
RAM.

Enabled
Disabled

Optional shadow is enabled.
Optional shadow is disabled.

Chipset Features Setup

This section gives you instructions on how to configure the system
based on the specific features of the chipset. The chipset manages bus
speeds and access to system memory resources such as DRAM and
external cache. It also coordinates communications between the con­ventional ISA bus and the PCI bus. These items should not be altered
unless necessary. Depending on your add-in boards, you may not or
should not enable some of those features. The default settings have
been chosen because they provide the best operating conditions for
your system.

ROM PCI/ISA BIOS

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

DRAM Timing
System BIOS Cacheable

Video BIOS Cacheable
8 Bit I/O Recovery Time
16 Bit I/O Recovery Time
Memory Hole At 15M-16M
Peer Concurrency
Chipset Special Features
DRAM ECC/PARITY Select
Memory Parity/ECC Check
Single Bit Error Report

: 60 ns
: Enabled

: Enabled
: 1
: 1
: Disabled
: Enabled
: Disabled
: Parity
: Auto
: Enabled

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load BIOS Defaults

F7

:Load Setup Defaults

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

39

Power Management Setup

Power Management Setup allows you to configure your system to most
effectively save energy.

ROM PCI/ISA BIOS

POWER MANAGEMENT SETUP

AWARD SOFTWARE, INC.

Power Management
PM Control by APM
Video Off Method
MODEM Use IRQ

Doze Mode
Standby Mode
Suspend Mode
HDD Power Down

** Wake Up Events In Doze & Standby **
IRQ3 (Wake-Up Event)
IRQ4 (Wake-Up Event)
IRQ8 (Wake-Up Event)
IRQ12 (Wake-up Event)

: Disabled
: Yes
: V/H SYNC+Blank
: 3

: Disabled
: Disabled
: Disabled
: Disabled

: On
: On
: On
: On

** Power Down & Resume Events **
IRQ3 (COM 2)
IRQ4 (COM 1)
IRQ5 (LPT 2)
IRQ6 (Floppy Disk)
IRQ7 (LPT 1)
IRQ8 (RTC Alarm)
IRQ9 (IRQ2 Redir)
IRQ10(Reserved)
IRQ11(Reserved)
IRQ12 (PS2 Mouse)
IRQ13 (Coprocessor)
IRQ14 (Hard Disk)
IRQ15 (Reserved)

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load BIOS Defaults

F7

:Load Setup Defaults

: On
: On
: On
: On
: On
: Off
: On
: On
: On
: On
: On
: On
: Off

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

Power Management

This category allows you to select the type (or degree) of power saving
by changing the length of idle time that elapses before each of the
following modes are activated: Doze Mode, Standby Mode, and Sus­pend Mode.

Disable
(default)

Min. Power
Saving

Max. Power
Saving

User
Defined

PM Control by APM

Yes

No

40

No power management. Disables the Doze, Standby and
Suspend modes.

Minimum power management. Doze Mode = 1 hr., Standby
Mode = 1 hr., and Suspend Mode = 1 hr.

Maximum power management. Doze Mode = 1 min.,
Standby Mode = 1 min., and Suspend Mode = 1 min.

Allows you to set each mode individually. When enabled,
each option ranges from 1 min. to 1 hr.

An Advanced Power Management device will be activated to
enhance the Max. Power Saving mode and stop the CPU’s
internal clock. (default)

The system BIOS will ignore APM when initiating the Power
Management mode.

Video Off Method

This determines the manner in which the monitor is blanked.

V/H
SYNC +
Blank

Blank
Screen

DPMS

This selection will cause the system to turn off the vertical and
horizontal synchronization ports and write blanks to the video
buffer.

This option only writes blanks to the video buffer.

Initializes display power management signaling.

MODEM Use IRQ

This category is used to set an IRQ channel (IRQ 3, 4, 5, 7, 9, 10 or

11) for the modem installed in your system.

Doze Mode, Standby Mode, Suspend Mode and HDD Power Down

These Green PC power saving categories are user configurable only
when the Power Management category is set to User Defined.

Doze
Mode

Standby
Mode

Suspend
Mode

HDD
Power
Down

When enabled and after the set time of system inactivity, the
CPU clock will run at a slower speed while all other devices
still operate at full speed.

When enabled and after the set time of system inactivity, the
fixed disk drive and the video will be shut off while all other
devices still operate at full speed.

When enabled and after the set time of system inactivity, all
devices except the CPU will be shut off.

This is used to define the continuous HDD idle time that
elapses before the HDD enters the power saving mode (motor
off). When enabled and after the set time of system inactivity,
the hard disk drive will be powered down while all other de­vices remain active.

41

IRQ3-IRQ15 (Wake Up Events in Doze & Standby, and Power
Down & Resume Events)

These are I/O events whose occurrence can prevent the system from
entering a power saving mode or can awaken the system from such a
mode. In effect, the system remains alert for anything which occurs to a
device which is configured as enabled, even when the system is in a
power saving mode.

When an I/O device wants to gain the attention of the operating system,
it signals this by causing an IRQ to occur. When the operating system
is ready to respond to the request, it interrupts itself and performs the
service. When set to Enabled, the activity will neither prevent the sys­tem from going into a power saving mode nor awaken it.

PNP/PCI Configuration

This section describes configuring the PCI bus system. It covers some
very technical items and it is strongly recommended that only experi­enced users make any changes to the default settings.

ROM PCI/ISA BIOS

PNP/PCI CONFIGURATION SETUP

AWARD SOFTWARE, INC.

Resources Controlled By
Reset Configuration Data

:Auto
:Disabled

PCI IRQ Actived By : Level
PCI IDE IRQ Map To : PCI-AUTO
Primary IDE INT# : A
Secondary IDE INT# : B

42

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load BIOS Defaults

F7

:Load Setup Defaults

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

Resources Controlled By

The Award Plug and Play BIOS has the capacity to automatically con­figure all of the boot and Plug and Play compatible devices. However,
this capability means absolutely nothing unless you are using a Plug
and Play operating system such as Windows® 95.

Auto

Manual

The system will automatically detect the settings for you. The
categories that follow will not be shown on the PNP/PCI Con­figuration screen.

This allows you to set the IRQ/DMA (you have assigned your
add-in card) to Legacy ISA or PCI/ISA PnP. For non-PnP ISA
cards, select Legacy ISA. For PnP ISA or PCI cards, select
PCI/ISA PnP.

Reset Configuration Data

Enabled
Disabled

The BIOS will reset the configuration data once automatically.
The BIOS will not reset the configuration data.

PCI IRQ Actived By

This category is used to set the method by which the PCI bus recog­nizes that an IRQ service is being requested by a device. Under all
circumstances, you should retain the default configuration unless a dif­ferent setting is needed.

PCI IDE IRQ Map To

This category is used to configure your system to the type of IDE disk
controller in use.

ISA

PCI-Auto

Designates which ISA slot is installed with an IDE controller
card; that is, if you are using an IDE controller card.

The system will scan and determine the PCI slot that is in­stalled with an IDE controller card.

43

Primary IDE INT# and Secondary IDE INT#

The Primary and Secondary IDE INT# categories are used to select the
PCI interrupt (A, B, C, or D) that is associated with the connected hard
drives.

Load BIOS Defaults

The “Load BIOS Defaults” option loads the troubleshooting default val­ues permanently stored in the ROM chips. These settings are not opti­mal and turn off all high performance features. You should use these
values only if you have hardware problems. Highlight this option on the
main menu and press <Enter>. The message below will appear.

Load BIOS Defaults (Y/N)? N

If you want to proceed, type <Y> and press <Enter>. The default set­tings will be loaded.

Load Setup Defaults

The “Load Setup Defaults” option loads optimized settings from the
BIOS ROM. Use the Setup default values as standard values for your
system.

Highlight this option on the main menu and press <Enter>. The mes­sage below will appear.

Load Setup Defaults (Y/N)? N

Type <Y> and press <Enter> to load the Setup default values.

44

Integrated Peripherals

IDE HDD Block Mode
PCI Slot IDE 2nd Channel
On-Chip Primary PCI IDE
On-Chip Secondary PCI IDE
IDE Primary Master PIO
IDE Primary Slave PIO
IDE Secondary Master PIO
IDE Secondary Slave PIO

Onboard FDC Controller
Onboard UART 1
Onboard UART 2
Onboard UART 2 Mode

Onboard Parallel Port
Parallel Port Mode

IDE HDD Block Mode

ROM PCI/ISA BIOS

INTEGRATED PERIPHERALS

AWARD SOFTWARE, INC.

: Enabled
: Disabled
: Enabled
: Enabled
: Auto
: Auto
: Auto
: Auto

: Enabled
: Auto
: Auto
: Standard

: 378H/IRQ7
: Normal

USB Controller

ESC

:Quit

F1

:Help

F5

:Old Values

F6

:Load BIOS Defaults

F7

:Load Setup Defaults

: Enabled

↑↓→←

PU/PD/+/­(Shift) F2

:Select Item
:Modify
:Color

Enabled

The IDE HDD uses the block mode. The system BIOS will
check the hard disk drive for the maximum block size the
system can transfer. The block size will depend on the type
of hard disk drive installed.

Disabled

The IDE HDD uses the standard mode.

PCI Slot IDE 2nd Channel

This allows you to designate an IDE controller card inserted into one of
the PCI slots as your secondary IDE controller.

Enabled

Disabled

The IDE controller card is designated as the secondary IDE
controller.

No IDE controller card occupying any of the PCI slots.

On-Chip Primary PCI IDE and On-Chip Secondary PCI IDE

These categories allow you to enable or disable the primary and sec­ondary IDE controller. The default is Enabled. Select Disabled if you
want to add a different hard drive controller.

45

IDE Primary Master/Slave PIO and IDE Secondary Master/Slave
PIO

Your system supports five modes, 0 (default) to 4, which primarily differ
in timing. When Auto is selected, the BIOS will select the best available
mode after checking your hard drive.

Auto

0-4

The BIOS will automatically set the system according to your
hard disk drive’s timing.

You can select a mode that matches your hard disk drive’s
timing. Caution: Do not use the wrong setting or you will
have drive errors.

Onboard FDD Controller

Enabled
Disabled

Enables the onboard floppy disk controller.
Disables the onboard floppy disk controller.

Onboard UART 1 and Onboard UART 2

Auto
3F8/IRQ4
2F8/IRQ3
3E8/IRQ4
2E8/IRQ3

Disabled

Selects an address for the onboard serial port 1 and serial
port 2.

Disables the onboard serial port 1 and/or serial port 2.

Onboard UART 2 Mode

The C586HX system board supports IrDA function for wireless connec­tivity between your computer and peripheral devices. To use the IrDA
function, follow the steps below.

1. Connect your IrDA cable to connector J9 of the C586HX system
board. Refer to page 12 for the location of connector J9.

2. Set “Onboard UART 2 Mode” to the type of IrDA standard sup­ported by your IrDA peripheral/device.

46

You may not use IrDA (J9) and the COM 2 serial port (J3) at the same
time. If you are using the COM 2 serial port, set “Onboard UART 2
Mode” to Standard.

Standard
HPSIR
ASKIR

Uses the COM 2 serial port.
HP mode IrDA.
SHARP mode IrDA.

Onboard Parallel Port

378H/IRQ7
3BCH/IRQ7
278H/IRQ5

Disabled

Selects the I/O address and IRQ for the onboard parallel port.

Disables the onboard parallel port.

Parallel Port Mode

Normal
EPP
ECP
ECP+EPP

Selects the parallel port mode according to the type of printer
device connected to your onboard parallel port.

Supervisor Password

If you want to protect your system and setup from unauthorized entry,
set a supervisor’s password with the “System” option selected in the
BIOS Features Setup.

If you want to protect access to setup only, but not your system, set a
supervisor’s password with the “Setup” option selected in the BIOS Fea­tures Setup. You will not be prompted for a password when you cold
boot the system.

Use the arrow keys to highlight the “Supervisor Password” option and
press <Enter>. The message below will appear.

Enter Password:

47

Type in the password. You are limited to eight characters. When done,
the message below will appear:

Confirm Password:

You are being asked to verify the password. Type in exactly the same
password. If you type in a wrong password, you will be prompted to
enter the correct password again.

To delete or disable the password function, highlight “Supervisor Pass­word” and press <Enter>, instead of typing in a new password. Press
the <Esc> key to return to the main menu.

User Password

If you want another user to have access only to your system but not to
setup, set a user’s password with the “System” option selected in the
BIOS Features Setup.

If you want a user to enter a password when trying to access setup, set
a user’s password with the “Setup” option selected in the BIOS Fea­tures Setup. Using a user’s password to enter Setup allows a user to
access only the “User Password” option that appears on the main
screen. Access to all other options is denied.

To set, confirm, verify, disable or delete a user’s password, follow the
procedures described in the section “Supervisor Password”. If you for­get your password, refer to the procedure described in the same sec­tion.

IDE HDD Auto Detection

This option detects the hard disk parameters for the hard disk drives
installed in your system. Highlight this option and press <Enter>. A
screen similar to the one on the next page will appear.

48

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

HARD DISKS TYPE SIZE CYLS HEAD RECOMP LANDZ SECTOR MODE
Primary Master:

Select Primary Master Option (N=Skip): N

OPTIONS SIZE CYLS HEAD RECOMP LANDZ SECTOR MODE
2 (Y) 853 827 32 0 1653 63 LBA

1 853 1654 16 65535 1653 63 Normal
3 853 827 32 65536 1653 63 Large

Note: Some OS (like SCO-UNIX) must be “NORMAL” for installation

ESC: Skip

Enter your choice, and press <Enter> to accept the parameters or press
<Esc> to abort. The parameters of the hard disk will be displayed in the
Standard CMOS Setup.

Hard Drive Mode

The system board supports three HDD modes: Normal, LBA and Large.
If your hard disk drive does not support LBA mode, the “LBA” option will
not be displayed. If your HDD has 1024 or fewer cylinders, the “Large”
option will not be displayed. If your hard drive is larger than 2.1GB, be
sure that your operating system supports it or you may need to create
separate partitions.

Normal Mode

Normal mode is the generic access mode in which neither the BIOS nor
the IDE controller will make any transformations during hard-drive ac­cess.

The maximum number of cylinders, heads and sectors for Normal mode
are 1024, 16 and 63, respectively.

no. Cylinders (1024)
x no. Heads ( 16)
x no. Sectors ( 63)
x bytes per sector ( 512)

528 megabytes

49

If you set your HDD to Normal mode, the maximum accessible HDD will
be 528 megabytes even though the physical size of the HDD may be
greater than that.

LBA (Logical Block Addressing) Mode

LBA mode is a HDD accessing method to overcome the 528 megabyte
limitation. The number of cylinders, heads and sectors shown on the
screen may not be the actual number for the HDD.

During HDD accessing, the IDE controller will transform the logical ad­dress described by the sector, head and cylinder number into its own
physical address inside the HDD.

The maximum HDD size supported by the LBA mode is 8.4 gigabytes. It
is obtained by the following formula.

no. Cylinders (1024)
x no. Heads ( 255)
x no. Sectors ( 63)
x bytes per sector ( 512)

8.4 gigabytes

Large Mode

Large mode is the extended HDD access mode supported by the sys­tem board. Some IDE HDDs have more than 1024 cylinders without
LBA support (in some cases, you may not want the LBA mode). This
system board provides another alternative to support these kinds of
HDDs.

The BIOS tells the operating system that the number of cylinders is half
the actual number and that the number of heads is double the actual
number. During disk access, the reverse conversion is done by the
INT13h routine.

50

Maximum HDD size:

no. Cylinders (1024)
x no. Heads ( 32)
x no. Sectors ( 63)
x bytes per sector ( 512)

1 gigabyte

Note:

To support LBA or Large mode, address translation software is included
in the Award BIOS HDD Sevice Routine (INT13h). If you are running an
operating system that bypasses the BIOS Int13 Service Routine, LBA
and Large Mode may fail.

HDD Low Level Format

The HDD Low Level Format utility is designed as a tool to save you
time formatting your hard disk. It automatically looks for the necessary
information of the drive you selected. This utility also searches for bad
tracks and lists them for your reference. Highlight this option and press
<Enter>. A screen similar to the one below will appear.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

Hard Disk Low Level Format Utility

SELECT DRIVE

BAD TRACK LIST

PREFORMED

Current select drive is : C

DRIVE: C CYLINDER: 0 HEAD: 0

CYLS

1654

HEAD

RECOMP

16

0

0

0

0

0

0

Primary Master:
Primary Slave:
Secondary Master:
Secondary Slave:

Up/Down-Select item ENTER-Accept ESC-Exit/Abort

SIZE

853

0
0
0

Copyright (C) Award Software, Inc. 1992-94 All Rights Reserved

65536

LANDZ

1653
0
0
0

0
0
0

No. CYLS HEAD

SECTOR

63

0
0
0

MODE
AUTO
AUTO
AUTO
AUTO

Do not use this HDD Low Level Format feature for IDE hard drives.
They already have been low-level formatted at the factory. Do a high­level format only for those drives.

51

Save & Exit Setup

When all the changes have been made, highlight “Save & Exit Setup”
and press <Enter>. The message below will appear:

Save to CMOS and Exit (Y/N)? N

Type “Y” and press <Enter>. The modifications you have made will be
written into the CMOS memory, and the system will reboot. You will
once again see the initial diagnostics on the screen. If you wish to
make additional changes to the setup, press <Ctrl> <Alt> <Esc> simul­taneously or <Del> after memory testing is done.

Exit Without Saving

When you do not want to save the changes you have made, highlight “Exit
Without Saving” and press <Enter>. The message below will appear:

Quit Without Saving (Y/N)? N

Type “Y” and press <Enter>. The system will reboot and you will once
again see the initial diagnostics on the screen. If you wish to make any
changes to the setup, press <Ctrl> <Alt> <Esc> simultaneously or
<Del> after memory testing is done.

System Error Report

When the BIOS encounters an error that requires the user to correct
something, either a beep code will sound or a message will be dis­played in a box in the middle of the screen and the message, PRESS
F1 TO CONTINUE, CTRL-ALT-ESC or DEL TO ENTER SETUP, will be
shown in the information box at the bottom. Enter Setup to correct the
error.

52

POST Beep

There are two kinds of beep codes in the BIOS. One code indicates
that a video error has occured and the BIOS cannot initialize the video
screen to display any additional information. This beep code consists of
a single long beep followed by three short beeps. The other code indi­cates that a DRAM error has occured. This beep code consists of a
single long beep.

Error Messages

One or more of the following messages may be displayed if the BIOS
detects an error during the POST. This list indicates the error messages
for all Awards BIOSes:

CMOS CHECKSUM ERROR

Checksum of CMOS is incorrect. This can indicate that CMOS has be­come corrupt. This error may have been caused by a weak battery.
Check the battery and replace if necessary.

DISPLAY SWITCH IS SET INCORRECTLY

The display switch on the motherboard can be set to either mono­chrome or color. This indicates the switch is set to a different setting
than indicated in Setup. Determine which setting is correct, then either
turn off the system and change the jumper or enter Setup and change
the VIDEO selection.

FLOPPY DISK(S) fail (80) → Unable to reset floppy subsystem.
FLOPPY DISK(S) fail (40) → Floppy type mismatch.
Hard Disk(s) fail (80) → HDD reset failed.
Hard Disk(s) fail (40) → HDD controller diagnostics failed.
Hard Disk(s) fail (20) → HDD initialization error.
Hard Disk(s) fail (10) → Unable to recalibrate fixed disk.
Hard Disk(s) fail (08) → Sector Verify failed.

53

Keyboard is locked out - Unlock the key

The BIOS detects that the keyboard is locked. Keyboard controller is
pulled low.

Keyboard error or no keyboard present

Cannot initialize the keyboard. Make sure the keyboard is attached cor­rectly and no keys are being pressed during the boot.

Manufacturing POST loop

System will repeat POST procedure infinitely while the keyboard con­troller is pull low. This is also used for M/B burn in test at the factory.

BIOS ROM checksum error - System halted

The checksum of ROM address F0000H-FFFFFH is bad.

Memory test fail

BIOS reports memory test fail if the memory has error(s).

Driver Installation

To install the IDE drivers supported by the C586HX system board,
please refer to the “Readme” file contained in the provided diskettes.

54

Chapter 4

Troubleshooting Checklist

This chapter of the manual is designed to help you with problems that
you may encounter with your personal computer. To efficiently
troubleshoot your system, treat each problem individually. This is to
ensure an accurate diagnosis of the problem in case a problem has
multiple causes.

Some of the most common things to check when you encounter
problems while using your system are listed below.

1. The power switch of each peripheral device is turned on.

2. All cables and power cords are tightly connected.

3. The electrical outlet to which your peripheral devices are connected
is working. Test the outlet by plugging in a lamp or other electrical
device.

4. The monitor is turned on.

5. The display’s brightness and contrast controls are adjusted properly.

6. All add-in boards in the expansion slots are seated securely.

7. Any add-in board you have installed is designed for your system and
is set up correctly.

Monitor/Display

If the display screen remains dark after the system is turned on:

1. Make sure that the monitor’s power switch is on.

2. Check that one end of the monitor’s power cord is properly attached
to the monitor and the other end is plugged into a working AC outlet.
If necessary, try another outlet.

3. Check that the video input cable is properly attached to the monitor
and the system’s display adapter.

4. Adjust the brightness of the display by turning the monitor’s
brightness control knob.

55

The picture seems to be constantly moving.

1. The monitor has lost its vertical sync. Adjust the monitor’s vertical
sync.

2. Move away any objects, such as another monitor or fan, that may be
creating a magnetic field around the display.

The screen seems to be constantly wavering.

1. If the monitor is close to another monitor, the adjacent monitor may
need to be turned off. Fluorescent lights adjacent to the monitor may
also cause screen wavering.

Power Supply

When the computer is turned on, nothing happens.

1. Check that one end of the AC power cord is plugged into a live
outlet and the other end properly plugged into the back of the
system.

2. Make sure that the voltage selection switch on the back panel is set
for the correct type of voltage you are using.

3. The power cord may have a “short”. Inspect the cord and install a
new one if necessary.

Floppy Drive

The computer cannot access the floppy drive.

1. The floppy diskette may not be formatted. Format the diskette and
try again.

2. The diskette may be write-protected. Use a diskette that is not write­protected.

3. You may be writing to the wrong drive. Check the path statement to
make sure you are writing to the targeted drive.

4. There is not enough space left on the diskette. Use another diskette
with adequate storage space.

56

Hard Drive

Hard disk failure.

1. Make sure the correct drive type for the hard disk drive has been
entered in the BIOS.

2. If the system is configured with two hard drives, make sure the
bootable (first) hard drive is configured as Master and the second
hard drive is configured as Slave.

Excessively long formatting period.

1. If your hard drive takes an excessively long period of time to format,
it is likely a cable connection problem.

Parallel Port

The parallel printer doesn’t respond when you try to print.

1. Make sure that your printer is turned on and that the printer is on­line.

2. Make sure your software is configured for the right type of printer
attached.

3. Verify that the onboard LPT port’s I/O address and IRQ settings are
configured correctly.

4. Verify that the attached device works by attaching it to a parallel port
that is working and configured correctly. If it works, the printer can
be assumed to be in good condition. If the printer remains
inoperative, replace the printer cable and try again.

Serial Port

The serial device (modem, printer) doesn’t output anything or is
outputting garbled characters.

1. Make sure that the serial device’s power is turned on and that the
device is on-line.

2. Verify that the device is plugged into the correct serial port on the
rear of the computer.

57

3. Verify that the attached serial device works by attaching it to a serial
port that is working and configured correctly. If the serial device
does not work, either the cable or the serial device has a problem. If
the serial device works, the problem may be due to the onboard I/O
or the address setting.

4. Make sure the COM settings and I/O address are configured
correctly.

Keyboard

Nothing happens when a key on the keyboard was pressed.

1. Make sure the keyboard is properly connected.

2. Make sure there are no objects resting on the keyboard and that no
keys are pressed during the booting process.

System Board

1. Make sure the add-in card is seated securely in the expansion slot.
If the add-in card is loose, power off the system, re-install the card
and power up the system.

2. Check the jumper settings to ensure that the jumpers are properly
set.

3. Verify that all SIMMs are seated securely into the SIMM sockets.

4. Make sure the SIMMs are in the correct locations.

5. If the board fails to function, place the board on a flat surface and
seat all socketed components. Gently press each component into
the socket.

6. If you made changes to the BIOS settings, re-enter setup and load
the BIOS defaults.

58

Appendix A

Types of Modules

The following modules have been tested with this board. Most untested
brands will work but a few may fail to do so.

SIMM

1MBx32/x36

2MBx32/x36

4MBx32/x36

8MBx32/x36

Brand

Fujitsu
OKI
OKI
NEC
Micron
TI
Micron
Micron
NEC
Hitachi
Fujitsu
Mitsubishi
Hitachi
NEC
NEC
NEC

Chip Number

81C1000A-70
M51440A-70
M511000B-70
424400-60
40447-60
TMS4400DJ-70
MT4C4007-70 (EDO)
MT4C4007-60 (EDO)
4218165-60 (EDO)
7400AS-70
8117400-70
422A06-70
5117400AS-70
4217400-60
4217405-70 (EDO)
4217405-60 (EDO)

59

Appendix B
Memory and I/O Maps

Memory Address Map

Address Name Function

0000000 to 640KB System System Board Memory
009FFFF Board RAM

00A0000 to 128KB Video Reserved for Graphics
00BFFFF Display Memory Display Memory

00C0000 to 160KB I/O Reserved for ROM on
00E7FFF Expansion ROM I/O Adapter Card

00E8000 to 96KB ROM on System Board BIOS
00FFFFF the System Board

0100000 to Maximum System Board Memory
FFFFFFF Memory 256MB

60

I/O Address Map

I/O Address Function

0000-001F DMA Controller 1, 8237A-5
0020-003F Interrupt Controller 1, 8259A, Master
0040-005F Timer, 8254-2
0060-006F 8742 (Keyboard Controller)
0070-007F Real-time Clock, NMI

0080-009F DMA Page Memory, 74LS612
00A0-00BF Interrupt Controller 2, 8259A
00C0-00DF DMA Controller 2, 8237A-5
00E8 Shadow RAM and Cache Control Bit
00F0 Clear Numeric Processor

00F1 Reset Numeric Processor Extension
00F8-00FF Numeric Processor Extension
01F0-01F8 Fixed Disk
0200-0207 Game I/O
0278-027F Parallel Printer Port 2
02F8-02FF Serial Port 2
0300-031F Prototype Card
0360-036F Reserved
0378-037F Parallel Printer Port 1
0380-038F SDLC, Bisynchronous 2
03A0-03AF Bisynchronous 1
03B0-03BF Monochrome Display and Printer Adapter
03C0-03CF Reserved
03D0-03DF Color/Graphics Monitor Adapter
03F0-03F7 Diskette Controller
03F8-03FF Serial Port 1

(Non-maskable Interrupt) Mask

Extension Busy

Note:

The I/O address hex 0000 to 00FF are reserved for the system board
I/O. Hex 0100 to 03FF are available on the I/O channels.

61

Appendix C
Connectors

Connectors

J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
J13
J14
J15
J16
CN1
CN2
PL1
JP1
JP2

PS/2 mouse connector
COM 1 serial port
COM 2 serial port
Floppy disk drive connector
Parallel printer port
Primary IDE hard disk drive connector
Secondary IDE hard disk drive connector
Fan connector
Infrared connector
Primary/Secondary IDE LED connector
Green LED connector
Green button connector
Reset switch connector
Speaker connector
Power LED/Keylock connector
PS/2 keyboard connector
AT keyboard connector
Power connector
USB connector
USB connector

62

Pin Assignment

J10 - IDE LED connector

Pin

1
2

Function

Signal
+5V

J13 - Green button connector

Pin

1
2

Function

Ground
Signal

J9 - Infrared connector

Pin

1

2
3
4
5

Function

IrTX
Ground
IrRX
Reserved
+5V

J11 - Green LED connector

Pin

1
2

Function

Signal
+5V

J14 - Reset switch connector

Pin

1
2

Function

Ground
Reset

J16 - Power LED/Keylock

Pin

1

2
3
4
5

Function

Power LED
Reserved
Ground
Keylock Signal
Ground

J15 - Speaker connector

Pin

1

2
3
4

Function

Signal
Reserved
Ground
+5V

J8 - Fan connector

Pin

1
2

3

Function

Ground
+12V
Ground

63

J1 - PS/2 mouse connector

JP1/JP2 - USB connectors

Pin

1

2
3
4
5

6

Function

Mouse Data
Reserved
Ground
+5V
Mouse Clock
Reserved

Pin

1

2
3
4
5

Function

+5V

-Data
+Data
Ground
Ground

64