American Megatrends Apollo II User manual

Apollo II PCI Pentium
ISA Motherboard
User's Guide
MAN-742
5/20/96

Apollo-II PCI Pentium ISA Motherboard User’s Guide
ii
© Copyright 1996 American Megatrends, Inc.
All rights reserved.
American Megatrends, Inc.
6145F Northbelt Parkway
Norcross, GA 30071
This publication contains proprietary information which is protected by copyright. No part of this
publication may be reproduced, transcribed, stored in a retrieval system, translated into any language or
computer language, or transmitted in any form whatsoever without the prior written consent of the
publisher, American Megatrends, Inc.
Limited Warranty
Buyer agrees if this product proves to be defective, that American Megatrends, Inc. is only obligated to
replace or refund the purchase price of this product at American Megatrends’ discretion according to the
terms and conditions on the motherboard warranty card. American Megatrends shall not be liable in tort
or contract for any loss or damage, direct, incidental or consequential. Please see the Warranty
Registration Card shipped with this product for full warranty details.
Limitations of Liability
In no event shall American Megatrends be held liable for any loss, expenses, or damages of any kind
whatsoever, whether direct, indirect, incidental, or consequential, arising from the design or use of this
product or the support materials provided with the product.
Trademarks
Intel and Pentium are registered trademarks of Intel Corporation.
MS-DOS, Microsoft Word, and Microsoft are registered trademarks of Microsoft Corporation.
SMC is a registered trademark of Standard Microsystems Corporation.
IBM, AT, VGA, PS/2, OS/2, and EGA are registered trademarks of International Business Machines
Corporation. XT and CGA are trademarks of International Business Machines Corporation.
Fujitsu is a registered trademark of Fujitsu America, Inc.
Motorola is a registered trademark of Motorola Corporation.
Hitachi is a registered trademark of Hitachi America, Ltd.
PNY is a registered trademark of PNY Corporation.
Oki is a registered trademark of Oki America, Inc.
NEC is a registered trademark of NEC Corporation.
Samsung is a registered trademark of Samsung Electronics Corporation.
Siemens is a trademark of Siemens Corporation.
Mitsubishi is a registered trademark of Mitsubishi Electronics of America.
Micron is a registered trademark of Micron Corporation.
SCO, UnixWare, and Unix are registered trademarks of The Santa Cruz Operation, Inc..
Toshiba is a registered trademark of Kabushiki Kaisha Toshiba.
VESA is a trademark of the Video Electronics Standards Association.
All other brand and product names are trademarks or registered trademarks of their respective
companies.
Revision History
3/30/96 Initial release.
5/20/96 Corrections to this manual.

Preface iii
Table of Contents
1 Hardware Installation......................................1
Apollo II Dimensions................................................................
......................
Apollo II Motherboard Layout................................
................................
Step 1 Unpack the Motherboard................................
................................
Avoid Static Electricity................................................................
....................
Step 2 Configure CPU................................................................
.....................
Step 3 Install Memory................................................................
.....................
Step 4 Install the Motherboard................................
................................
Step 5 Attach Cables................................................................
.......................
Step 6 Test and Configure................................................................
...............
2 WINBIOS Setup..............................................35
Using a Mouse with WINBIOS Setup................................
..............................
Using the Keyboard with WINBIOS Setup................................
......................
WINBIOS Setup Menu................................................................
....................
Section 1 Setup.................................................................... 38
Standard Setup................................................................
................................
Advanced Setup................................................................
..............................
Chipset Setup................................................................
................................
Power Management Setup................................................................
...............
PCI/PnP Setup................................................................
................................
Peripheral Setup................................................................
..............................
Section 2 Security................................................................ 57
AMIBIOS Password Support................................
................................
Setting a Password................................................................
..........................
Changing a Password................................ ................................
......................
Anti-Virus................................................................
................................
Section 3 Utility................................................................ ... 60
Section 4 Default.................................................................. 60
3 Programming the Flash ROM....................... 61
A Specifications................................................65
Index..................................................................67

Apollo-II PCI Pentium ISA Motherboard User’s Guide
iv
Preface
To the OEM Thank you for purchasing the high performance
American Megatrends Apollo II PCI Pentium ISA
motherboard. This product is a state of the art
motherboard that includes the famous AMIBIOS.
It is assumed that you have also licensed the rights
to use the American Megatrends documentation for
the American Megatrends Apollo II motherboard
This manual was written for the OEM to assist in
the proper installation and operation of this
motherboard. This manual describes the
specifications and features of the Apollo II
motherboard. It explains how to assemble a system
based on the Apollo II motherboard and how to use
the AMIBIOS that is specifically designed for this
motherboard.
This manual is not meant to be read by the
computer owner who purchases a computer with
this motherboard. It is assumed that you, the
computer manufacturer, will use this manual as a
sourcebook of information, and that parts of this
manual will be included in the computer owner's
manual.

Apollo-II PCI Pentium ISA Motherboard User’s Guide
v
Packing List
You should have received the following:
• an Apollo II motherboard,
• a cache module,
• two serial cables,
• one parallel cable,
• a Warranty Card, and
• the American Megatrends Apollo II Pentium
ISA Motherboard User's Guide.
Static Electricity
The Apollo-II motherboard can easily be damaged
by static electricity. Make sure you take appropriate
precautions against static electric discharge:
• wear a properly-grounded wristband while
handling the Apollo-II motherboard or any
other electrical component,
• touch a grounded anti-static surface or a
grounded metal fixture before handling the
Apollo-II motherboard,
• handle system components by the mounting
bracket, if possible.
Batteries Make sure you dispose of used batteries according
to the battery manufacturer’s instructions.
Improper use of batteries may cause an explosion.
Make sure you follow the battery manufacturer’s
instructions about using the battery.
Replace used batteries with the same type of battery
or an equivalent recommended by the battery
manufacturer.

Chapter 1 Hardware Installation 1
1Hardware Installation
The American Megatrends Apollo II Pentium ISA
PCI motherboard supports:
• an Intel Pentium CPU operating at 75, 90,
100, 120, 133, 150, 166, 180, 200 MHz, or
higher speeds,
• Standard, VR, and VRE voltages.
• CPU clock speed selected through jumpers,
• optional 321-pin ZIF CPU socket,
• up to 128 MB of onboard system memory,
• PCI local bus throughput of 132 megabytes per
second,
• 256 KB or 512 KB of onboard asynchronous
SRAM direct-mapped write-back L2 cache
memory or 256 KB or 512 KB of burst SRAM
in a 160-pin IDT module,
• AMIBIOS with power management, PCI,
Flash ROM, enhanced IDE, and Plug and Play
support,
• three ISA expansion slots, and
• four PCI expansion slots.
The motherboard conforms to the PCIVersion 2.1
specification. The PCI slots are automatically
configured by the AMIBIOS. The PCI slots operate
synchronously with the CPU clock, as follows:
CPU External Clock Frequency PCI Expansion Slot Frequency
66 MHz 33 MHz
60 MHz 30 MHz
50 MHz 25 MHz
Onboard I/O The Apollo II Pentium ISA motherboard includes:
• two 40-pin IDE connectors on the PCI bus that
support up to four IDE drives,
• a 34-pin floppy drive connector,
• two 10-pin serial port connectors (with 16550
UARTs),
• a 26-pin parallel port connector with ECP and EPP
support,
• a keyboard connector, and
• a PS/2 mouse connector.

Apollo-II PCI Pentium ISA Motherboard User’s Guide
2
Apollo II Dimensions
The motherboard dimensions are shown in the
following illustration.
Expansion
Slots
0.62"
Keyboard
Connectors
0.85"SIMM
Sockets
2.5"
HeatSink
1.75"
PowerConnectors
2.0"
11.5"
8.375"
CacheModuleSlot
0.62"
VoltageRegulator
1.5"

Chapter 1 Hardware Installation 3
InstallationSteps
Step Action Turn to
1Unpack the motherboard. Page 5
2Configure the CPU. Page 6
Configure the CPU. Page 6
Select the CPU voltage. Page 6
Select the CPU speed. Page 7
Install the CPU. Page 8
3Install memory. Page 10
Install system memory. Page 10
Configure cache memory. Page 13
4Install the motherboard. Page 16
5Attach cables to connectors. Page 18
Connect the power supply. Page 20
Attach the keyboard cable. Page 21
Connect the mouse cable. Page 22
Attach cables. Page 23
Connect onboard I/O. Page 26
Connect the serial ports. Page 26
Connect the parallel port. Page 26
Connect floppy drive(s). Page 28
Connect the IDE drive(s). Page 30
6Test and configure. Page 34
Warning
This motherboard contains sensitive electronic
components that can be easily damaged by static
electricity. Follow the instructions carefully to
ensure correct installation and to avoid static
damage.

Apollo-II PCI Pentium ISA Motherboard User’s Guide
4
Apollo II Motherboard Layout
ASquarePadidentifiesPin 1
inJumpersand Connectors.
KEYBOARD
PCI SLOT 1 PCI SLOT 2 PCI SLOT 3
PS/2Mouse
J1
PCI SLOT 4
COM1
LPT1
Floppy
IDE1
IDE2
JPW1
JPW2
JPW3
JPW4
KeylockSpkr
Suspend ResetFan
JS1
J6
Bank0 Bank1
PowerSupply
HD-LED
JCK1
JCK2
JC2
JC1
JVR
J5
JCP
J2 J3
J4
COM2
J7
JP1
J11
J10
J8J9
AMIBIOS

Chapter 1 Hardware Installation 5
Step 1 Unpack the Motherboard
Step Action
1Inspect the cardboard carton for obvious damage. If damaged,
call 770-246-8645. Leave the motherboard in its original
packing.
2Perform all unpacking and installation procedures on a ground-
connected anti-static mat. Wear an anti-static wristband
grounded at the same point as the anti-static mat. Or use a
sheet of conductive aluminum foil grounded through a 1
megohm resistor instead of the anti-static mat. Similarly, a
strip of conductive aluminum foil wrapped around the wrist
and grounded through a 1 megohm resistor serves the same
purpose as the wristband.
3Inside the carton, the motherboard is packed in an anti-static
bag, and sandwiched between sheets of sponge. Remove the
sponge and the anti-static bag. Place the motherboard on a
grounded anti-static surface component side up. Save the
original packing material.
4Inspect the motherboard for damage. Press down on all ICs
mounted in sockets to verify proper seating. Do not apply
power to the motherboard if it has been damaged.
5If the motherboard is undamaged, it is ready to be installed.
Set Jumpers Set all jumpers and install the CPU before placing
the motherboard in the chassis.
Avoid Static Electricity
Static electricity can damage the motherboard and
other computer components. Keep the motherboard
in the anti-static bag until it is to be installed.
Wear an anti-static wrist grounding strap before
handling the motherboard. Make sure you stand on
an anti-static mat when handling the motherboard.
Avoid contact with any component or connector on
any adapter card, printed circuit board, or memory
module. Handle these components by the mounting
bracket.

Apollo-II PCI Pentium ISA Motherboard User’s Guide
6
Step 2 Configure CPU
See the drawing on page4for the jumper
locations.
Important
Perform the following steps to configure the
motherboard before installing a CPU.
CPU External and Internal Clock RatiosJC1, JC2, and J6 set the
CPU external and internal clock frequencies. JC1
and JC2 are 2-pin bergs. J6 is a 3-pin berg.
CPU
External
Speed
CPU
Internal
Speed
JC1 JC2 J6
50 MHz 75 MHz OPEN OPEN Short Pins 1-2
60 MHz 120 MHz Shorted OPEN Short Pins 2-3
66 MHz 133 MHz Shorted OPEN Short Pins 2-3
60 MHz 90 MHz OPEN OPEN Short Pins 2-3
66 MHz 100 MHz OPEN OPEN Short Pins 2-3
60 MHz 180 MHz OPEN Shorted Short Pins 2-3
66 MHz 200 MHz OPEN Shorted Short Pins 2-3
60 MHz 150 MHz Shorted Shorted Short Pins 2-3
66 MHz 166 MHz Shorted Shorted Short Pins 2-3
Cont’d

Chapter 1 Hardware Installation 7
Step 2 Configure CPU,Continued
JVR Select CPU VoltageThe Apollo II motherboard supports Intel
Pentium CPUs that adhere to either the standard or
VRE voltage specifications. JVR is a three-pin berg
that selects the CPU voltage. JVR is located near
the top and to the left of the CPU socket.
VRE3.5V
CPUVoltage-Setting JVR
Standard(VR)3.38V
Pin1
Pin1
Important
If you are not sure about the voltage
specification for the CPU that will be installed
in this motherboard, please call Intel and make
sure that you set JVR correctly. Selecting the
wrong voltage may damage the CPU.
CPU External Clock JCK1 and JCK2 are 2-pin bergs that set the
CPU speed. JCK1 and JCK2 are located at the top
of the SRAM chips.
External Clock Supported Internal CPU
Speeds JCK1 JCK2
50 MHz 75 MHz Shorted Shorted
60 MHz 90, 120, 150, and 180 MHz Shorted OPEN
66 MHz 100, 133, 166, and 200
MHz OPEN Shorted
Important
Please contact American Megatrends
technical support at 770-246-8645 to support
a CPU running at a higher speed.
Cont’d

Apollo-II PCI Pentium ISA Motherboard User’s Guide
8
Step 2 Configure CPU,Continued
Install CPU Install the CPU in the ZIF (zero insertion force)
socket by performing the following steps. The CPU
socket is near one edge of the motherboard, as
shown on page4.
Warning
Improper CPU installation can damage the CPU
and the motherboard. You must follow the
procedures in this section exactly as documented.
Make sure you wear an antistatic wristband while
installing the CPU. Follow all antistatic
procedures described on page 5.
Step Action
1Lift the lever on the ZIF socket. The empty CPU socket
looks like this.

Chapter 1 Hardware Installation 9
Step Action
2Check for bent pins on the CPU. Gently straighten any bent
pins with pliers. Place the CPU in the middle of the socket,
as shown below. Make sure that pin 1 of the CPU is aligned
with pin 1 of the socket. Make sure you are properly
grounded while handling the CPU.
3Complete installation by lifting the ZIF lever to the other
side of the socket, as shown below.

Apollo-II PCI Pentium ISA Motherboard User’s Guide
10
Step 3 Install Memory
System MemoryThe motherboard has four 32-bit SIMM – Single
Inline Memory Module) sockets. You can use Fast
Page Mode or EDO (Extended Data Out) SIMMs.
Memory must be populated one bank at a time.
Each bank has two sockets. Each bank must be
populated with the same type of SIMM. If a 1 MB
SIMM is installed in the first socket in Bank0, then
the same type of 1 MB SIMM must be installed in
the second Bank0 SIMM socket. Each socket can
hold one SIMM. You can use:
• 1 MB x 36,
• 4 MB x 36,
• 8 MB x 36, or
• 16 MB x 36, or
• 32 MB x 36 SIMMs.
The motherboard supports banks of fast page mode
and EDO (Extended Data Out) memory together
operating at 60 or 70 ns (RAS access time).
Memory Display System memory is reported by AMIBIOS
as it boots and again when the AMIBIOS System
Configuration Screen is displayed just before the
operating system boots. The memory displayed by
AMIBIOS on the System Configuration Screen is
384 KB less than the total memory installed.
Select SIMMs SIMMs must meet the following specifications:
Parameter Specification
Page Mode FAST or EDO
Refresh CAS before RAS
tCAC ≤20 ns
tRAC ≤80 ns
tAA ≤45 ns
tRP 70 ns
tCPA ≤45 ns
Cont’d

Chapter 1 Hardware Installation 11
Step 3 Install Memory,Continued
SIMM Part Numbers
Type Manufacturer Part Number
4 MB x 36 Micron MT12D436M-7
“Mitsubishi MH4M36SAJ-7
“Motorola MCM36400S-70
“PNY P364000-70
“Samsung KMM5364100-7
8 MB x 36 Motorola MCM36800S-70
“PNY P368000-707
“Samsung KMM5368100-7
DRAM ConfigurationsValid memory configurations include:
Total RAM Bank0 Bank0 Bank1 Bank1
8 MB 4 MB 4 MB None None
16 MB 8 MB 8 MB None None
24 MB 8 MB 8 MB 4 MB 4 MB
32 MB 8 MB 8 MB 8 MB 8 MB
40 MB 16 MB 16 MB 4 MB 4 MB
48 MB 16 MB 16 MB 8 MB 8 MB
64 MB 16 MB 16 MB 16 MB 16 MB
64 MB 32 MB 32 MB None None
72 MB 32 MB 32 MB 4 MB 4 MB
80 MB 32 MB 32 MB 8 MB 8 MB
96 MB 32 MB 32 MB 16 MB 16 MB
128 MB 32 MB 32 MB 32 MB 32 MB
Cont’d

Apollo-II PCI Pentium ISA Motherboard User’s Guide
12
Step 3 Install Memory,Continued
Installing SIMMsThe motherboard has four x 36 SIMM sockets.
These sockets can be filled with either 4 MB x 36,
8 MB x 36, 16 MB x 36, or 32 MB x 36 SIMMs.
Place the motherboard on an anti-static mat. With
the component side of the SIMM facing you, firmly
push the SIMM into the socket at an angle, then
push it up. When properly inserted, the SIMM
clicks into place as the latching pins engage. The
SIMM installation process is shown below:
Cont’d

Chapter 1 Hardware Installation 13
Step 3 Install Memory,Continued
Configure Cache MemoryThe motherboard supports 256 KB or
512 KB of L2 secondary cache memory. Cache
memory is supplied by American Megatrends in a
standard COAST-compliant cache memory
module. The cache module can support pipeline
burst or asynchronous SRAMs. The Apollo II is
shipped with empty SRAM and tag RAM sockets.
L2 Cache Size Cache DIP
Type Tag RAM Type JS1 Setting
256 KB 32 x 8 KB 8 x 8 or
32 KB x 8 Short Pins 1-2
512 KB 64 KB x 8 32 KB x 8 Short Pins 2-3
0 KB None None N/A
!Important
The Apollo II works with either the DIP cache memory
or a cache module, but not both.
If the DIP cache memory is used, the cache module
socket must be empty. If the cache module is used, the
SRAM DIPs must be physically removed.
The cache module used must conform to the Intel
COAST Version 1.0 specification. A 160-pin cache
module connector is mounted on the motherboard.
Cache Jumpers JS1, JPW1, JPW2, JPW3, and JPW4 are three-pin
bergs that select the external cache size and type.
JPW1, JPW2, JPW3, and JPW4 are to the right of
the SRAM module connector. JS1 is located to the
left of the SRAM connector. These jumpers do not
have to be changed when the cache module is
installed. Cont’d

Apollo-II PCI Pentium ISA Motherboard User’s Guide
14
Step 3 Install Memory,Continued
Cache Size JS1 sets the L2 secondary cache memory size, as
follows:
Cache Memory Size JS1 Setting
256 KB (factory setting) Short Pins 1-2
512 KB Short Pins 2-3
Cache MemoryType Specify the size of L2 secondary cache
memory as shown in the following chart and table:
SRAM
Voltage JPW1 JPW2 JPW3 JPW4
Mixed
(factory
setting)
Short Pins
1-2 Short Pins 1-2 Short Pins 1-2 Short Pins 1-2
3.3V Short Pins
2-3 Short Pins 2-3 Short Pins 2-3 Short Pins 2-3
!Important
Before inserting the cache module:
• turn the computer off,
• make sure you follow all antistatic procedures,
• use only COAST 1.0-compliant cache modules.
Cont’d

Chapter 1 Hardware Installation 15
Step 3 Install Memory,Continued
Upgrade Cache The Apollo II motherboard is shipped with empty
SRAM and Tag RAM sockets. A cache module is
shipped with the Apollo II motherboard.JPW1,
JPW2, JPW3, and JPW4 do not have to be
changed when installing the cache module.The
factory settings of these jumpers are correct for the
cache module.
Remove all SRAM DIP chips and Tag RAM from
the motherboard before installing the cache
module. AMIBIOS automatically detects and
configures asynchronous and pipeline burst cache
memory modules. Insert the cache module as
shown below: