Table of Contents

Chapter 1: Introduction… … … .… … … … ..… .… … … ..1

Key Features………………………………..…………………1

Unpacking the Mainboard…………………………………2

Electrostatic Discharge Precautions……………………….2

Mainboard Layout W/ Default Settings……..…………………3

Remarks on the Cyrix and IBM P200 CPUs……..………….5

Voltage Setting List……………………………………………5

Chapter 2: Hardware Setup.… … … … … … … … … .. 6

Jumpers…..…………………………………..………………6

JP5: CMOS Clear Jumper……………..…………………..6

J25: E MI Groun d Pin ………………………………. 6

JP16: PCI Bus Asynchronous/Synchronous Jumper…..7

CPU Type Configuration……………………………………8

Step 1: Frequency Setting…………………………………..8

P54C/P55C-75/90/100 CPU Settings (1.5 x clock)…….8

P54C/P55C-100/120/133 CPU Settings (2.0 x clock)….9

P54C/P55C-150/166 CPU Settings (2.5 x clock)……..10

P54C/P55C-180/200 CPU Settings (3.0 x clock)……..10

3.5x clock CPU Settings (233 MHz CPUs)….……..11

4.0x clock CPU Settings (266 MHz CPUs)…………11

Step 2: CPU Single/Dual Voltage Setting……..………12

Single Voltage CPU Setting……….………………12

Dual Voltage CPU Setting………………………..13

Memory Configuration……………………………………..13

Memory Configuration Table……………………………..14

RAM Bank Installation Notice…………..…………….14

Cache Configuration……………………………………….14

Cache Size and RAM Locations………………………….14

Multi I/O Port Addresses…………………………………..15

Connectors…………..………………………………………….15

COM1, COM2-COM1/COM2 Connectors…………………15

FDC Connector…………………………………………..…15

J19-Hardware Reset Control………………………………..15

J24-HDD LED Connectors…………………………………15

CN5-IR Connector……………………………………..16

CN2-Keyboard Connector……………………………..16

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SOYO P55C, P54C manual Table of Contents

P55C, P54C specifications

The SOYO P54C and P55C are motherboards designed to cater to a diverse range of computing needs, targeting enthusiasts and professionals alike. Built for compatibility with Intel processors, these motherboards provide a stable foundation for a powerful computing experience.

The SOYO P54C features the Intel 440FX chipset, supporting Intel Pentium processors, whereas the P55C supports the more advanced Pentium processors with enhanced performance and features. This reflects a significant leap in technology, enabling users to harness increased computational power for demanding tasks.

One of the standout features of the P54C and P55C is their support for a range of memory types. The P54C supports SDRAM, while the P55C can handle EDO memory, allowing for improved data access speeds and overall system performance. Both motherboards support up to 128MB of RAM, enabling users to run multiple applications simultaneously without compromising performance.

In terms of expansion capabilities, the SOYO P54C and P55C motherboards are equipped with ISA and PCI slots. This versatility allows users to integrate various expansion cards for enhanced functionality. Whether it's additional graphics capabilities, sound cards, or network interfaces, users can customize their systems to meet specific needs.

Connectivity options on both motherboards are notable. They come with integrated ports that support PS/2 peripherals, parallel and serial connections, making it easy to connect a variety of devices. Additionally, both motherboards support integrated audio systems, further streamlining the user experience by providing out-of-the-box sound functionality.

When it comes to power efficiency, the SOYO P54C and P55C exhibit reliable power management features, including advanced power-saving modes. This not only helps in reducing energy consumption but also contributes to longer-lasting hardware.

In summary, the SOYO P54C and P55C motherboards represent a fine blend of performance, expandability, and efficiency. With their support for Intel processors, diverse memory options, and robust connectivity, these motherboards stand out in the marketplace as reliable choices for both everyday users and professionals seeking a solid computing platform. Whether building a new system or upgrading an existing one, the SOYO P54C and P55C are sure to meet and exceed user expectations with their comprehensive features and reliable performance.