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. Please Note: For the most up-to-date version of this manual, please see our web site at www.supermicro.com. SUPER MICRO 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 documenta- tion 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 SUPER MICRO COMPUTER BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, SPECULATIVE 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, SUPER MICRO COMPUTER SHALL NOT HAVE LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED OR USED WITH THE PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA. Any disputes arising between manufacturer and customer shall be governed by the laws of Santa Clara County in the State of California, USA. The State of California, County of Santa Clara shall be the exclusive venue for the resolution of any such disputes. Super Micro's total liability for all claims will not exceed the price paid for the hardware product. FCC Statement:

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 reason- able protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer’s instruction manual, may cause interference with 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, you are 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 con- nected. *Consult the dealer or an experienced radio/television technician for help. California Best Management Practices Regulations for Perchlorate Materials:

This Perchlorate warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”. WARNING: Handling of lead solder materials used in this product may expose you to lead, a chemical known to the State of California to cause birth defects and other reproductive harm. Manual Revision 1.1a Release Date: June 6, 2007 Unless you request and receive written permission from SUPER MICRO 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. Copyright © 2007 by SUPER MICRO COMPUTER INC. All rights reserved. Printed in the United States of America

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Preface Preface About This Manual This manual is written for system integrators, PC technicians and knowledgeable PC users. It provides information for the installation and use of the P8SGA motherboard. The P8SGA supports single Intel Pentium ® 4 Processor (the Prescott Processor) in the 775-Land Grid Array Package at a sys- tem bus speed of 800/533 MHz. The Pentium 4 Processor in the 775-Land Grid Array Package is housed in a Flip-Chip Land Grid Array (FC-LGA4) package that interfaces with the motherboard via an LGA775 socket. The package consists of a processor core mounted on a substrate land-carrier.

An integrated heat spreader (IHS) is attached to the package substrate and core and serves as the contacting surface for processor component thermal solutions, such as a heatsink. Please refer to the motherboard speciﬁ cations pages on our web site (http://www.supermicro. com/products/motherboard/) for updates on this motherboard. This product is in- tended to be professionally installed. Manual Organization Chapter 1 includes a checklist of what should be included in your mainboard box, describes the features, speciﬁ cations and performance of the P8SGA mainboard and provides detailed information about the chipset. Chapter 2 begins with instructions on handling static-sensitive devices.

Read this chapter when installing the processor and DDR memory modules and when mounting the mainboard in the chassis. Also refer to this chapter to connect the ﬂ oppy and hard disk drives, the IDE interfaces, the parallel and serial ports, the mouse and keyboard and the twisted wires for the power supply, the reset button, the keylock/power LED and the speaker. If you encounter any problems, see Chapter 3 , which describes troubleshoot- ing procedures for the video, the memory and the setup conﬁ guration stored in CMOS. For quick reference, a general FAQ (Frequently Asked Questions) section is provided. Instructions are also included for contacting technical support.

In ad- dition, you can visit our web site at www.supermicro.com/techsupport.htm for more detailed information. Chapter 4 includes an introduction to BIOS and provides detailed information on running the CMOS Setup utility. Appendix A provides BIOS POST Messages. Appendix B lists BIOS POST Codes. iii

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P8SGAUser’s Manual Table of Contents Preface About This Manual ...................................................................................................... iii Manual Organization ................................................................................................... iii Chapter 1: Introduction 1-1 Overview ......................................................................................................... 1-1 Checklist ..................................................................................................... 1-1 Contacting Supermicro ...............................................................................

1-2 SUPER P8SGAImage ............................................................... 1-3 P8SGA Layout ............................................................................ 1-4 P8SGAQuick Reference .............................................................. 1-5 E7205 Chipset: System Block Diagram ..................................................... 1-6 1-2 Chipset Overview ........................................................................................... 1-9 Motherboard Features .............................................................................. 1-7 1-3 PC Health Monitoring ...................................................................................

1-10 1-4 Power Conﬁ guration Settings ....................................................................... 1-10 1-5 Power Supply ............................................................................................... 1-11 1-6 Super I/O .........................................................................................................1-11 Chapter 2: Installation 2-1 Static-Sensitive Devices ................................................................................. 2-1 2-2 Processor and Heatsink Installation ...............................................................

2-2 2-3 Mounting the Motherboard in the Chassis ..................................................... 2-5 2-4 Installing DDR Memory .................................................................................. 2-6 2-5 I/O Port/Front Control Panel Connector Locations ........................................ 2-7 2-6 Connecting Cables ......................................................................................... 2-8 Power Supply Connectors ...................................................................... 2-8 IR Connector ..............................................................................................

2-8 PW_ON Connector .................................................................................. 2-9 Reset Connector ...................................................................................... 2-9 IDE LED ................................................................................................ 2-10 Power LED Connector ............................................................................ 2-10 Keylock Connector ................................................................................. 2-11 Speaker Connector ............................................................................... 2-11 iv

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Table of Contents Serial Ports ............................................................................................. 2-12 CD Header ............................................................................................. 2-12 Fan Headers .......................................................................................... 2-13 Chassis Intrusion .................................................................................... 2-13 ATX PS/2 Keyboard/Mouse Ports ......................................................... 2-14 Universal Serial Bus (USB) .....................................................................

2-14 Wake-On-Ring .......................................................................................... 2-15 Wake-On-LAN .......................................................................................... 2-15 Ethernet Port ............................................................................................ 2-15 VGA Connector ........................................................................................ 2-16 SMB Header ............................................................................................. 2-16 Overheat LED ...........................................................................................

2-17 AC'97 Output ............................................................................................ 2-17 2-7 Jumper Settings ............................................................................................ 2-18 Explanation of Jumpers ......................................................................... 2-18 CMOS Clear ........................................................................................... 2-18 USB Wake-Up .......................................................................................... 2-19 Watch Dog Enable/Disable ......................................................................

2-19 Keyboard Wake-Up .................................................................................. 2-20 Gigabit LAN Enable .................................................................................. 2-20 2-8 Parallel Port, Floppy/Hard Drive and Audio Connections ............................ 2-21 Parallel Port Connector ........................................................................... 2-21 Floppy Connector .................................................................................... 2-22 IDE Connectors .......................................................................................

2-22 2-9 Installing Software ........................................................................................ 2-23 SuperO Doctor III ..................................................................................... 2-25 Chapter 3: Troubleshooting 3-1 Troubleshooting Procedures ........................................................................... 3-1 Before Power On ....................................................................................... 3-1 No Power ................................................................................................... 3-1 No Video ..................................................................................................

3-1 Memory Errors ........................................................................................... 3-2 Losing the System’s Setup Conﬁ guration ................................................ 3-2 3-2 Technical Support Procedures ....................................................................... 3-2 3-3 Frequently Asked Questions .......................................................................... 3-3 3-4 Returning Merchandise for Service ................................................................. 3-5 v

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