DFI 686IPK User manual

686IPK
Rev.A+
System Board
User’s Manual
- 33670417 -

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.
Caution:
Danger of explosion if battery incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer’s instructions.
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............................................................ 4
Features and Specifications.................................................. 5
Package Checklist .............................................................. 7
Chapter 2: Hardware Installation............................................... 8
Preparing the Area.............................................................. 8
Handling the System Board.................................................. 8
Installing the System Board.................................................. 9
Board Layout ....................................................................12
System Memory................................................................14
Intel Pentium®II Processor..................................................17
Jumper Settings for Intel Pentium®II Processor..................17
Installing the Retention Mechanism..................................18
Installing Boxed Processor.............................................20
Installing OEM Processor...............................................23
Jumper Settings for CMOS Clear..........................................27
Jumper Settings for Processor Fan Failure Detection.................28
Factory Testing Jumpers......................................................28
Ports and Connectors.........................................................29
Installing Expansion Cards...................................................38
Chapter 3: Software Installation...............................................39
Award BIOS Setup Utility.....................................................39
Desktop Management Interface (DMI)....................................62
System Error Report ..........................................................65
Driver Installation...............................................................67
Chapter 4: Troubleshooting Checklist.............................................68
Appendix A: Types of Modules......................................................72
Appendix B: Processor Voltage Settings.........................................73
Appendix C: Memory and I/O Maps................................................74

4
The 686IPK is an Intel PentiumII processor based system board using
Intel’s high performance 233MHz Pentium®II processor with 512KB ex-
ternal L2 cache, 233MHz Pentium®II processor with 256KB external L2
cache or 266MHz Pentium®II processor with 512KB external L2 cache.
The 686IPK supports processor fan “failure detection” function that
monitors the status of the processor fan. It detects any irregularity in
processor fan RPM (Rotation Per Minute) and alerts you to attend to
any problem that may damage your system. The “failure detection” cir-
cuit requires a processor fan that operates at greater than 3600 RPM.
The 686IPK is equipped with a switching voltage regulator that auto-
matically detects 1.8V to 3.5V. The VID (Voltage Identifications) code
found in a processor allows the 686IPK to detect and adjust to the re-
quired voltage.
The 686IPK system board can support 8MB to 512MB of system
memory. It is equipped with 4 SIMM sockets allowing you to install x32
or x36 EDO or fast page mode SIMMs. The x36 SIMM supports parity
checking which informs the user of memory failure and prevents error
accumulation.
The 686IPK system board is designed to fit into an ATX form factor
case. Using an ATX power supply, you can either shut down your com-
puter by pressing the Power button located on the front bezel of your
computer or by executing the Shut Down command under the
Windows 95 operating system. Your system will enter the “soft power
off” state. With a modem installed, you can power on your system to
remotely transmit or access data. An ATX power supply also provides
adequate airflow throughout the chassis to prevent overheating the pro-
cessor.
Chapter 1
Introduction

5
Features and Specifications
Intel Pentium®II Processors
•233MHz Pentium®II processor with 512KB external L2 cache
•233MHz Pentium®II processor with 256KB external L2 cache
•266MHz Pentium®II processor with 512KB external L2 cache
Chipset
•Intel®440FX PCIset
System Memory
•8MB to 512MB memory
•Four 72-pin SIMM sockets
•Uses EDO or fast page mode x32 or x36 DRAM, 60/70ns, 5V
•ECC and Parity Check supported (uses x36 DRAM)
BIOS
•Compatible with Windows®95 Plug and Play standard
•Flash EPROM for easy BIOS upgrades
•Includes NCR 810 SCSI BIOS
•Supports DMI function
Energy Efficient Design
•System power management supported
•CPU stopped clock control
•Hardware supports SMI green mode
•Microsoft®/Intel®APM 1.2 compliant
•External power management switch supported
•Soft Power supported
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 CD-ROM supported

6
Integrated I/O
•Two NS16C550A-compatible high speed UARTs
•One SPP/ECP/EPP parallel port
•Supports 360KB, 720KB, 1.2MB, 1.44MB, and 2.88MB floppy drives
Processor Slot
•Intel®Slot 1 connector (242-pin processor slot)
•Equipped with a switching voltage regulator that automatically de-
tects 1.8V to 3.5V
•Processor fan with failure detection
Connectors
•2 connectors for external USB (Universal Serial Bus) ports
•1 connector for IrDA interface
•2 DB-9 serial ports
•1 DB-25 parallel port
•2 IDE connectors
•1 floppy connector
•1 mini-DIN-6 PS/2 mouse port
•1 mini-DIN-6 PS/2 keyboard port
•1 20-pin ATX power supply connector
Expansion Slots
•3 dedicated PCI slots
•3 dedicated 16-bit ISA slots
•1 shared PCI/ISA slot
PCB
•4 layers, ATX form factor
•30.48cm (12") x 22.53cm (8.87")

7
Package Checklist
The 686IPK package contains the following items:
•The 686IPK system board
•The 686IPK user’s manual
•One 40-pin IDE hard disk cable
•One 34-pin floppy disk drive cable
•One IDE driver diskette
•One Retention Mechanism
•Five spare jumpers
•One card-edge bracket with two USB port cables (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 686IPK system board
into your system unit. It also includes a description of the area in which
you must work and directions for processor and memory installation.
Before installing the system board, carefully read the Installing the Sys-
tem Board section for proper installation procedures.
Preparing the Area
Before unpacking the system board, make sure the location you have
selected is relatively free of dust and static electricity. Excessive expo-
sure to dust, static electricity, direct sunlight, excessive humidity, ex-
treme cold, and water can damage the operational capabilities of your
system board. Place the system board on a workbench (not in a chas-
sis). Avoid placing the unit on surfaces such as carpeted floors. These
areas also attract static electricity which can damage some 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 sys-
tem 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 686IPK system board care-
fully.
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 by its edges only. 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 anti-
static 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 686IPK system board, the following outlines the
basic installation steps. Before installing the system board into your sys-
tem 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 small 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 instruc-
tions if necessary.
3.Detach all connectors from the old system board and remove ex-
pansion cards seated in any expansion slots.
4.Loosen the screws holding the original system board and remove
the board from the system. Save the screws.
5.Remove the 686IPK from its original packing box. Be careful to
avoid touching all connectors and pins on the board. Refer to the
handling instructions on pages 8-9 for proper handling techniques.
6.Place the system board on a flat surface (not in a chassis) with the
component side facing up.
7.Install the retention mechanism that comes with the package. Refer
to the Installing the Retention Mechanism section for installation in-
structions.
8.You are now ready to install the Intel PentiumII processor. Before
you install the processor, carefully read the installation instructions
under the Intel PentiumII Processor Installation section.
Note:
Make sure the system board is not yet installed with any SIMMs,
add-in cards, cables, etc.
9.Insert the memory modules into the memory banks on the 686IPK. The
quantity and location of the memory modules depends on the
memory configuration and type of modules you intend to use.
10.Set the corresponding jumpers.
11.Install the prepared 686IPK system board into the case. Make sure
you install screws into the four mounting holes shown on the next
page.

11
12.Reinstall all add-in cards and connectors and replace the system
unit cover. Reconnect all power cords and cables.

12
Board Layout
square denotes pin 1

13
Jumpers
JP2 and JP8 - Intel Pentium®II
processors: voltage ID & freq. select
JP1 - CMOS clear
JP5 - Processor fan failure detection
JP4 and JP6 - Factory testing jumpers
SIMM Sockets
SIMM1 to SIMM4 - SIMM sockets
J1-USB connectors
J2-IrDA connector
J4-Fan connector
J5-FDD connector
J6-Secondary IDE HDD connector
J7-Primary IDE HDD connector
J8-ATX power LED
HDLED
Green LED
ATX power switch
Green switch
Reset switch
Speaker connector
AT power LED/Keylock connector
CN1-COM 2 serial port
CN2-Parallel printer port
CN3-PS/2 keyboard port
CN4-PS/2 mouse port
CN5-COM 1 serial port
PL1-ATX power connector
Slots
Intel®Slot 1 - Processor card slot
PCI Slots 1, 2, 3, 4 - 32-bit PCI slots
ISA Slots 1, 2, 3, 4 - 16-bit ISA slots
Connectors
pages 17
page 27
page 28
page 28
Refer to
pages 14-16
Refer to
page 18-26
page 38
page 38
Refer to
pages 33-34
pages 34-35
page 35
pages 30-31
pages 31-33
pages 31-33
page 37
page 29
pages 29-30
page 29
page 29
page 29
page 36
Refer to

14
SIMMs
1MBx32/x36
2MBx32/x36
4MBx32/x36
8MBx32/x36
16MBx32/x36
32MBx32/x36
Memory Size
4MB
8MB
16MB
32MB
64MB
128MB
The table on the next page summarizes the bank locations and mod-
ules needed for the corresponding memory sizes.
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. 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 686IPK system board can support 8MB to 512MB of memory using
1MBx32/x36, 2MBx32/x36, 4MBx32/x36, 8MBx32/x36, 16MBx32/x36 or
32MBx32/x36 72-pin SIMMs. The table below shows the supported SIM
modules and their corresponding memory sizes.

15
MemorySize
8MB
16MB
16MB
24MB
32MB
32MB
40MB
48MB
64MB
64MB
72MB
80MB
96MB
128MB
128MB
136MB
144MB
160MB
192MB
256MB
256MB
264MB
272MB
288MB
320MB
384MB
512MB
Bank0
SIMM1
1MBx32/x36
2MBx32/x36
1MBx32/x36
1MBx32/x36
4MBx32/x36
2MBx32/x36
1MBx32/x36
2MBx32/x36
8MBx32/x36
4MBx32/x36
1MBx32/x36
2MBx32/x36
4MBx32/x36
16MBx32/x36
8MBx32/x36
1MBx32/x36
2MBx32/x36
4MBx32/x36
8MBx32/x36
16MBx32/x36
32MBx32/x36
1MBx32/x36
2MBx32/x36
4MBx32/x36
8MBx32/x36
16MBx32/x36
32MBx32/x36
SIMM2
1MBx32/x36
2MBx32/x36
1MBx32/x36
1MBx32/x36
4MBx32/x36
2MBx32/x36
1MBx32/x36
2MBx32/x36
8MBx32/x36
4MBx32/x36
1MBx32/x36
2MBx32/x36
4MBx32/x36
16MBx32/x36
8MBx32/x36
1MBx32/x36
2MBx32/x36
4MBx32/x36
8MBx32/x36
16MBx32/x36
36MBx32/X36
1MBx32/x36
2MBx32/x36
4MBx32/x36
8MBx32/x36
16MBx32/x36
32MBx32/x36
SIMM4
—
—
1MBx32/x36
2MBx32/x36
—
2MBx32/x36
4MBx32/x36
4MBx32/x36
—
4MBx32/x36
8MBx32/x36
8MBx32/x36
8MBx32/x36
—
8MBx32/x36
16MBx32/x36
16MBx32/x36
16MBx32/x36
16MBx32/x36
16MBx32/x36
—
32MBx32/x36
32MBx32/x36
32MBx32/x36
32MBx32/x36
32MBx32/x36
32MBx32/x36
Bank1
SIMM3
—
—
1MBx32/x36
2MBx32/x36
—
2MBx32/x36
4MBx32/x36
4MBx32/x36
—
4MBx32/x36
8MBx32/x36
8MBx32/x36
8MBx32/x36
—
8MBx32/x36
16MBx32/x36
16MBx32/x36
16MBx32/x36
16MBx32/x36
16MBx32/x36
—
32MBx32/x36
32MBx32/x36
32MBx32/x36
32MBx32/x36
32MBx32/x36
32MBx32/x36

16
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 com-
pletely seated. Tilt the module upright until it locks in place in the
socket.
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

17
Intel Pentium®II
Processors
233MHz
266MHz
300MHz
333MHz
Freq.
Ratio
3.5x
4x
4.5x
5x
JP2
1-23-45-67-8
OffOffOnOn
OnOnOffOn
OffOnOffOn
OnOffOffOn
CPU VoltageJP8
1-23-45-67-89-10
OffOffOffOffOff21
4
63
5
87
10 9
21
4
63
5
87
Important:
The currently available Intel Pentium®II proces-
sors support VID (Voltage ID). This allows the
system to auto-detect the voltage of your pro-
cessor. However, if your processor does not
support VID, make sure you set JP8 according
to the voltage supported by your processor. Re-
fer to Appendix A for the jumper settings.
VID Support
Intel Pentium®II Processor
Jumper Settings for Intel Pentium®II Processors

18
Intel Pentium®II Processor Installation
Installing the Retention Mechanism
The 686IPK package includes a Retention Mechanism. The Retention
Mechanism is used to hold an Intel Pentium®II processor to the Intel®
Slot 1 connector. Make sure the system board is on a workbench (not
in a chassis). To install the Retention Mechanism, follow the steps be-
low.
1.The Retention Mechanism package includes a Retention Mecha-
nism and two Retention Mechanism Attach Mounts.
2.Insert the Retention Mechanism Attach Mount through the holes,
up from the bottom of the system board. The holes are located near
the ends of the Intel®Slot 1 connector.

19
5.Tighten the captive nuts to stabilize the Retention Mechanism.
3.Hold the Retention Mechanism upright and position it above the
Intel®Slot 1 connector.
4.Slide the Retention Mechanism downward so that the rectangular
hole at the center of the Retention Mechanism fits onto the connec-
tor. The captive nuts located on both ends of the Retention Mecha-
nism will also fit over the threaded studs of the Retention Mecha-
nism Attach Mount.
Note:
The holes on the upper sides of the Retention Mechanism (where
the latches of the processor locks) should be facing toward the Intel
chips.

20
Installing Boxed Processor
1.Mount the two black plastic pegs onto the system board. These
pegs will be used to attach the fan heatsink supports. Notice that
one hole and the base of one peg are larger than the other hole
and peg base. Push each peg into its hole firmly until you hear it
“click” into place.
2.Slide a black plastic heatsink support onto each end of the fan
heatsink, making sure that the hole and clip are on the outside
edge of the support. (If the supports are reversed, the holes will not
line up with the pegs on the system board). Slide each heatsink
support toward the center of the processor until the support is
seated in the outside groove in the fan housing.