The information in this User’s Manual has been carefully reviewed and is believed to be
accurate. The vendor assumes no responsibility for any inaccuracies that may be
contained in this document, makes no commitment to update or to keep current the
information in this manual, or to notify any person or organization of the updates.
SUPERMICRO COMPUTER reserves the right to make changes to the product described in
this manual at any time and without notice. This product, including software, if any, and
documentation may not, in whole or in part, be copied, photocopied, reproduced, translated
or reduced to any medium or machine without prior written consent.
IN NO EVENT WILL SUPERMICRO COMPUTER BE LIABLE FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR
INABILITY TO USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, THE VENDOR SHALL NOT HAVE
LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED OR USED WITH THE
PRODUCT, INCLUDING THE COSTS OF THE REPAIRING, REPLACING, OR
RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.
Unless you request and receive written permission from SUPERMICRO COMPUTER, you
may not copy any part of this document.
Information in this document is subject to change without notice. Other products and
companies referred to herein are trademarks or registered trademarks of their respective
companies or mark holders.
This manual is written for system houses, PC technicians and
knowledgeable PC end users. It provides information for the installation and use of the SUPER P5MMA98/P5MMS98/P5MMA2/P5MMS2
motherboard, which supports the 75/90/100/120/133/150/166/180/
200/233 MHz Intel® Pentium® processor, Cyrix/IBM 5x86, 6x86,
AMD-K5, AMD-K6, MMX
The Intel Pentium processor will take personal computer systems
to a new level of performance. The emergence of the PCI local bus
will also have a significant impact on PCs. Memory and I/O components have also made significant strides in both performance and
integration, enhancing the CPU’s ability to move data quickly. Putting these all together creates the next generation of PC systems.
Manual Organization
Chapter 1, Introduction, describes the features, specifications and
performance of the SUPER P5MMA98/P5MMS98/P5MMA2/P5MMS2
system board, provides detailed information about the chipset,
cache memory, main memory system, PC health monitoring, ACPI,
PC 98 and offers warranty information.
TM
and future Pentium processors.
Refer to Chapter 2, Installation, for instructions on handling staticsensitive devices, checking and/or configuring the jumpers for
manufacturing. Read this chapter when you want to configure CPU
and voltage settings, install or remove SIMM/DIMM memory modules, and to mount the system board in the chassis. Also refer to
this chapter to connect the floppy and hard disk drives, enhanced
IDE configurations, Infrared, USB, parallel port, serial ports, as well
as the cables for the power supply, reset cable, Keylock/Power LED,
speaker, overheat fan and keyboard.
iii
P5MMA98/P5MMA2/P5MMS98/P5MMS2 User's Manual
If you encounter any problem, please see Chapter 3, Troubleshooting, which describes troubleshooting procedures for video, memory, and the setup configuration stored in memory. Instructions are
also included on contacting a technical assistance support representative and returning merchandise for service and the BBS# for
BIOS upgrading.
iv
Preface
Table of Contents
Preface.......................................................................... iii
About This Manual ......................................................................................... iii
Manual Organization...................................................................................... iii
Quick Reference ........................................................................................... viii
Losing the System’s Setup Configuration.............................. 3-3
3-2 Technical Support Procedures........................................................ 3-4
3-3 Returning Merchandise for Service................................................ 3-4
vii
P5MMA98/P5MMA2/P5MMS98/P5MMS2 User's Manual
Quick Reference
JumpersFunctionPage
JP2CMOS Clear2-14
JP3External Battery2-15
JP5, JP6, JP7Bus Speed2-3
JP9 (MMA98)Overheat Fan (2 pins)2-16
JP15 (MMS98)Overheat Fan (2 pins)2-16
JP24 (MMA98)Power On/Off State2-19
JP27 (MMS98)Power On/Off State2-19
J7Boot Block Protection2-14
J35, J36Clock Multiplier2-3
J45 (MMS98)Overheat LED2-15
J46, J47, J48, J49 (MMA98) CPU Voltage2-5
J55 (MMS98)IRQ for PC Health2-14
J43 (MMA98)IRQ for PC Health2-14
J42 (MMA98)Overheat LED2-15
J51, J44 (MMA98)CPU Fan2-16
J54 (MMS98)CPU Fan2-16
J41 (MMA98)Overheat Fan (3 pins)2-16
J53 (MMS98)Overheat Fan (3 pins)2-16
J58 (MMS98)Chassis Fan2-17
J59 (MMS98)Chassis Intrusion2-18
J50 (MMA98)Chassis Intrusion2-18
J37 (MMS98)USB2-19
J38 (MMA98)USB2-19
viii
Chapter 1: Introduction
Chapter 1
Introduction
1-1Overview
SUPER P5MMA98, P5MMS98, P5MMA2, P5MMS2 are PC 98-ready
motherboards designed to maximize user satisfaction and simplicity in managing the personal computer. The four motherboards
support Intel® Pentium® 233/200/180/166/150/133/120/100/90/75
MHz, Cyrix/IBM 5x86, 6x86, AMD-K5, AMD-K6 and MMXTM processors.
They are based on Intel's advanced 430TX chipset to provide the
best possible platform for multimedia applications. They support
Synchronous DRAM (SDRAM), Concurrent PCI, and 33 MB/s Ultra
DMA for fast disk reads and writes.
All motheboards support PC Health Monitoring features including
CPU fan auto-off in sleep mode, CPU overheat alarm and LED,
hardware BIOS virus protection, and a switching voltage regulator
for the CPU core. SUPER P5MMA98 and P5MMS98 have an LM78
chip on-board which support additional PC Health Monitoring features, including seven voltage monitors, fan status monitors with
firmware/software control on/off, CPU/chassis temperature monitors, Intel LANDesk® Client Manager support, and system resource
alert. A chassis intrusion detection prevents system tampering.
ACPI/PC 98 features include Microsoft® OnNow power management, with a slow blinking LED to indicate the system is in the
sleep state, BIOS support for the USB (Universal Serial Bus) keyboard, and real time clock wake-up alarm. The motherboards provide a main switch override mechanism, and external modem ringon if the system is in a SoftOff state.
SUPER P5MMA98 and P5MMA2 are ATX size (12" x 8.3"). SUPER
P5MMS98 and P5MMS2 are baby AT size (11" x 8.3"). All support up
to 256 MB of FPM, EDO, or SDRAM, with 512 KB pipelined burst
SRAM or L2 cache, using two 168-pin unbuffered 3.3 V DIMM sock-
1-1
SUPER P5MMA98/P5MMS98/P5MMA2/P5MMS2 User’s Manual
ets and four 72-pin 5 V SIMM sockets. They include four PCI and
four ISA slots with two EIDE, one floppy, ECP/EPP parallel port, PS/
2 mouse and keyboard connectors, two 16550-based serial ports,
two USBs, and a fast IR port. SUPER P5MMS98 and P5MMS2 support 2 Mb/s back-up tapes.
Figure 1-1. SUPER P5MMA98 Motherboard Picture
1-2
Chapter 1: Introduction
Figure 1-2. SUPER P5MMS98 Motherboard Picture
For maximum flexibility, all four motherboards support AT or ATXtype power supply. The AMI WinBIOS has a 1 Mb flash memory for
convenient BIOS upgrade. The BIOS supports Advanced Power
Management (APM), Plug and Play, and PC health management.