Supero SUPER P4DPL-M User manual

®
SUPER P4DPL-8GM
SUPER P4DPL-iGM
SUPER P4DPL-M
USER’S MANUAL
Revision 1.0
SUPER

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.
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 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.
Supermicro's total liability for all claims will not exceed the price paid for the hardware
product.
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 © 2002 by SUPER MICRO COMPUTER INC.
All rights reserved.
Printed in the United States of America

iii
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 SUPER P4DPL-8GM/P4DPL-iGM/P4DPL-M mainboard. The SUPER
P4DPL-8GM/P4DPL-iGM/P4DPL-M supports single or dual Intel®603-pin
XeonTM 512K L2 cache processors at up to 2.8 GHz at a 400 MHz front side
bus. Please refer to the support section of our web site (http://
www.supermicro.com/TechSupport.htm) for a complete listing of supported
processors. This product is intended to be professionally installed.
Manual Organization
Chapter 1 begins with a checklist of what should be included in your
mainboard box, describes the features, specifications and performance of
the motherboard and provides detailed information about the chipset.
Chapter 2 begins with instructions on handling static-sensitive devices.
Read this chapter when you want to install the processor and memory
modules and when mounting the mainboard in the chassis. Also refer to
this chapter to connect the floppy and hard disk drives, SCSI drives, the IDE
interfaces, the parallel and serial ports, the keyboard and mouse, the power
supply and various other connections, buttons and indicators.
If you encounter any problems, see Chapter 3, which describes trouble-
shooting procedures for the video, the memory and the setup configuration
stored in CMOS. For quick reference, a general FAQ [Frequently Asked
Questions] section is provided. Instructions are also included for contact-
ing technical support. In addition, you can visit our web site (at
www.supermicro.com/techsupport.htm) for more detailed information.
Chapter 4 includes an introduction to PhoenixBIOS and provides detailed
information on running the CMOS Setup utility.
Appendix A gives information on PhoenixBIOS POST messages.
Appendix B provides PhoenixBIOS POST codes.

iv
SUPER P4DPL-8GM/P4DPL-iGM/P4DPL-M User’s Manual
Preface
About This Manual ...................................................................................................... iii
Manual Organization ................................................................................................... iii
Chapter 1: Introduction
1-1 Overview......................................................................................................... 1-1
Checklist .................................................................................................... 1-1
Contacting Supermicro............................................................................ 1-2
Super P4DPL-8GM/P4DPL-iGM Image ................................................... 1-4
Super P4DPL-M Image............................................................................. 1-5
Super P4DPL-8GM/P4DPL-iGM Layout.................................................. 1-6
Super P4DPL-8GM/P4DPL-iGM Quick Reference................................ 1-7
Super P4DPL-M Layout........................................................................... 1-8
Super P4DPL-M Quick Reference ......................................................... 1-9
Motherboard Features ........................................................................... 1-10
Intel E7500 Chipset: System Block Diagram...................................... 1-12
1-2 Chipset Overview......................................................................................... 1-13
1-3 Special Features........................................................................................... 1-13
ATI Graphics Controller ........................................................................ 1-13
BIOS Recovery....................................................................................... 1-13
Recovery from AC Power Loss ......................................................... 1-14
1-4 PC Health Monitoring.................................................................................... 1-14
1-5 ACPI Features ............................................................................................... 1-15
1-6 Power Supply ............................................................................................... 1-17
1-7 Super I/O......................................................................................................... 1-18
Chapter 2: Installation
2-1 Static-Sensitive Devices ............................................................................... 2-1
Precautions............................................................................................... 2-1
Unpacking.................................................................................................. 2-1
2-2 PGA Processor and Heatsink Installation .................................................. 2-2
2-3 Installing DIMMs............................................................................................... 2-5
2-4 I/O Ports/Control Panel Connectors............................................................. 2-6
2-5 Connecting Cables .......................................................................................... 2-8
ATX Power Connector............................................................................ 2-8
Processor Power Connector................................................................. 2-8
NMI Button .................................................................................................. 2-8
Power LED................................................................................................. 2-8
Table of Contents

Table of Contents
v
HDD LED .................................................................................................... 2-9
NIC1 LED ................................................................................................... 2-9
NIC2 LED ................................................................................................... 2-9
Overheat LED ........................................................................................... 2-9
Power Fail Button ..................................................................................... 2-9
Reset Button........................................................................................... 2-10
Power Button ......................................................................................... 2-10
Chassis Intrusion ................................................................................... 2-10
Universal Serial Bus (USB0/1) ............................................................ 2-10
Extra Universal Serial Bus Headers................................................... 2-11
Serial Ports ............................................................................................. 2-11
LAN (Ethernet) Ports.............................................................................. 2-11
ATX PS/2 Keyboard and Mouse Ports................................................ 2-11
Fan Headers........................................................................................... 2-12
Power LED/Speaker (JD1) ................................................................... 2-12
Power Supply Fail Header .................................................................... 2-12
Keylock ..................................................................................................... 2-13
Wake-On-LAN ......................................................................................... 2-13
Wake-On-Ring ......................................................................................... 2-13
2-6 Jumper Settings ............................................................................................ 2-14
Explanation of Jumpers ........................................................................ 2-14
CMOS Clear............................................................................................. 2-14
Mb LAN Enable/Disable......................................................................... 2-15
Gb LAN Enable/Disable......................................................................... 2-15
VGA Enable/Disable ............................................................................... 2-15
Power Supply Alarm Enable/Disable................................................... 2-15
SCSI Enable/Disable................................................................................ 2-16
SCSI Termination Enable/Disable.......................................................... 2-16
Watch Dog Enable/Disable .................................................................... 2-16
2-7 Onboard Indicators ...................................................................................... 2-17
Gb LAN LEDs .......................................................................................... 2-17
2-8 Parallel Port, Floppy/Hard Disk Drive and SCSI Connections ............... 2-17
Parallel Port Connector ......................................................................... 2-17
Floppy Connector................................................................................... 2-18
IDE Connectors ...................................................................................... 2-18
Ultra320 SCSI Connectors..................................................................... 2-19
2-8 Installing Software Drivers......................................................................... 2-20

SUPER P4DPL-8GM/P4DPL-iGM/P4DPL-M User’s Manual
vi
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 Configuration ........................................... 3-2
3-2 Technical Support Procedures .................................................................... 3-2
3-3 Frequently Asked Questions........................................................................ 3-3
3-4 Returning Merchandise for Service............................................................ 3-5
Chapter 4: PhoenixBIOS
4-1 Introduction....................................................................................................... 4-1
4-2 Running Setup.................................................................................................. 4-2
4-3 Main Setup........................................................................................................ 4-2
4-4 Advanced Setup.............................................................................................. 4-6
4-5 Security Setup ............................................................................................... 4-15
4-6 Power Setup .................................................................................................. 4-17
4-7 Boot Setup...................................................................................................... 4-18
4-8 PIR Setup ........................................................................................................ 4-20
4-9 Exit ................................................................................................................... 4-22
Appendices:
Appendix A: BIOS POST Messages ..................................................................... A-1
Appendix B: BIOS POST Codes .............................................................................B-1

Chapter 1: Introduction
1-1
Introduction
Chapter 1
Introduction
1-1 Overview
Checklist
Congratulations on purchasing your computer motherboard from an ac-
knowledged leader in the industry. Supermicro boards are designed with
the utmost attention to detail to provide you with the highest standards in
quality and performance.
Please check that the following items have all been included with your
motherboard. If anything listed here is damaged or missing, contact your
retailer.
One (1) Supermicro Mainboard
One (1) ribbon cable for IDE devices
One (1) floppy ribbon cable
One (1) I/O backpanel shield
One (1) Supermicro CD or diskettes containing drivers and utilities
One (1) User's/BIOS Manual
Two (2) Pentium 4 Xeon active heatsinks (FAN-042, retail only)
Two (2) heatsink retention clips (SKT-095)
SCSI Accessories (P4DPL-8GM only)
One (1) 68-pin LVD SCSI cable
One (1) set of SCSI driver diskettes
One (1) SCSI manual

SUPER P4DPL-8GM/P4DPL-iGM/P4DPL-M User’s Manual
1-2
Introduction
Contacting Supermicro
Headquarters
Address: SuperMicro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: [phone]
Fax: [phone]
Email: [email protected] (General Information)
[email protected] (Technical Support)
Web Site: www.supermicro.com
Europe
Address: SuperMicro Computer B.V.
Het Sterrenbeeld 28, 5215 ML
's-Hertogenbosch, The Netherlands
Tel: [phone]
Fax: [phone]
Email: sal[email protected] (General Information)
[email protected] (Technical Support)
[email protected] (Customer Support)
Asia-Pacific
Address: SuperMicro, Taiwan
D5, 4F, No. 16 Chien-Ba Road
Chung-Ho 235, Taipei Hsien, Taiwan, R.O.C.
Tel: [phone]
Fax: [phone]
Web Site: www.supermicro.com.tw
Technical Support:
Email: [email protected]
Tel: [phone], ext.132 or 139

Chapter 1: Introduction
1-3
Introduction
Notes

SUPER P4DPL-8GM/P4DPL-iGM/P4DPL-M User’s Manual
1-4
Introduction
Figure 1-1. SUPER P4DPL-8GM/P4DPL-iGM Image

Chapter 1: Introduction
1-5
Introduction
Figure 1-2. SUPER P4DPL-M Image

SUPER P4DPL-8GM/P4DPL-iGM/P4DPL-M User’s Manual
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Introduction
Figure 1-3. SUPER P4DPL-8GM/P4DPL-iGM Layout*
(not drawn to scale)
The IPMI socket is an optional feature.
Jumpers not noted are for test purposes only.
BANK 1
BANK 2
BANK 3
DIMM #1B
DIMM #1A
DIMM #2B
DIMM #2A
DIMM #3B
ATX PWR CONN
DIMM #3A
Parallel Port
VGA
COM1
USB0/1
Keyboard
Mouse
Mb
LAN
MCH
Rage
XL
J29
Chassis Fan3
CPU 2
CPU 1
ICH3
AIC-7902
Battery
Speaker
COM2
33 MHz PCI #2
33 MHz PCI #1
33 MHz PCI #3
133 MHz PCI-X #6
66 MHz PCI-X #5
66 MHz PCI-X #4
J12/IR/CIRWD/PWRLED/SPKR
BIOS
WOL J35
JBT1
JD1JP37 FPUSB0/1
USB2 Ultra III LVD SCSI CHB
Chassis Fan4
JL1
JP32
JWOR1
JA2
JP4
IPMI
Ultra III LVD SCSI CH A IDE #2
IDE #1
FLOPPY
IPMB
SMB
JA1
JP7
J15
Chassis Fan5
CPU2 Chassis Fan
SUPER P4DPL-8GM
®
JP8
JF2
JP36
JP9
CPU1 Chassis Fan
Gb
LAN
JD3
JP3
JOH1
JP39
JPA2
JP22
JPA1
Chassis Fan6
J9
*Note:
The P4DPL-iGM has the same layout as the P4DPL-8GM but with no SCSI.

Chapter 1: Introduction
1-7
Introduction
P4DPL-8GM/P4DPL-iGM Quick Reference
Jumper Description Default Setting
JBT1 CMOS Clear See Section 2-6
JP3/JD3 Mb/Gb LAN Enable/Disable Pins 1-2 (Enabled)
JP4 VGA Enable/Disable Pins 1-2 (Enabled)
JP9 3rd P/S Fail Alarm En/Dis Open (Disabled)
JP22* SCSI Enable/Disable Pins 1-2 (Enabled)
JP37 Watch Dog Enable/Disable Open (Disabled)
JPA1/JPA2* SCSI CH A/B Termination Open (Enabled)
Connector Description
ATX PWR CONN Primary ATX Power Connector
DIMM#1A-DIMM#3B Memory (RAM) Slots
COM1/COM2 COM1/COM2 Serial Port Connector
CPU/Chassis FAN CPU/Chassis Fan Headers
Gb LAN Gb LAN (Ethernet) Port
IDE#1/IDE#2 IDE #1/#2 Hard Disk Drive Connectors
FPUSB0/1 Front Side USB0/1 Headers
J9 PS/2 Keyboard/Mouse Ports
J15** Processor Power Connector
J29 Parallel (Printer) Port
JA1* Ultra320 LVD SCSI CH A Connector
JA2* Ultra320 LVD SCSI CH B Connector
JD1 PWR LED Header / Speaker Header/Jumper
JF2 Front Control Panel Connector
JL1 Chassis Intrusion Header
JOH1 Overheat LED
JP7 Floppy Disk Drive Connector
JP8 Third Power Supply Fail Header
JP35 Keylock Switch Connector
JP36 3rd Power Supply Alarm Reset Switch
JWOR1 Wake-on-Ring Header
Mb LAN Mb LAN (Ethernet) Port
Speaker Onboard Speaker Header
USB2 USB2 Header
VGA VGA Display (Monitor) Port
WOL Wake-on-LAN Header
* P4DPL-8GM only
** The 12v 8-pin processor power connector at J15 must also be
connected to your power supply.

SUPER P4DPL-8GM/P4DPL-iGM/P4DPL-M User’s Manual
1-8
Introduction
Figure 1-4. SUPER P4DPL-M Layout
(not drawn to scale)
The IPMI socket is an optional feature.
Jumpers not noted are for test purposes only.
BANK 1
BANK 2
BANK 3
DIMM #1B
DIMM #1A
DIMM #2B
DIMM #2A
DIMM #3B
ATX PWR CONN
DIMM #3A
Parallel Port
VGA
COM1
USB0/1
Keyboard
Mouse
Mb
LAN
MCH
Rage
XL
J29
Chassis Fan3
CPU 2
CPU 1
ICH3
Battery
Speaker
COM2
33 MHz PCI #2
33 MHz PCI #1
33 MHz PCI #3
133 MHz PCI-X #6
66 MHz PCI-X #5
66 MHz PCI-X #4
J12/IR/CIRWD/PWRLED/SPKR
BIOS
WOL J35
JBT1
JD1JP37 FPUSB0/1
USB2 Chassis Fan4
JL1
JP32
JWOR1
JP4
IPMI
IDE #2
IDE #1
FLOPPY
IPMB
SMB
JA1
JP7
J15
Chassis Fan5
CPU2 Chassis Fan
SUPER P4DPL-M
®
JP8
JF2
JP36
JP9
CPU1 Chassis Fan
JP3
JOH1
JP39
Chassis Fan6
J9

Chapter 1: Introduction
1-9
Introduction
* The 12v 8-pin processor power connector at J15 must also be
connected to your power supply.
P4DPL-M Quick Reference
Jumper Description Default Setting
JBT1 CMOS Clear See Section 2-6
JP3 Mb LAN Enable/Disable Pins 1-2 (Enabled)
JP4 VGA Enable/Disable Pins 1-2 (Enabled)
JP9 3rd P/S Fail Alarm En/Dis Open (Disabled)
JP37 Watch Dog Enable/Disable Open (Disabled)
Connector Description
ATX PWR CONN Primary ATX Power Connector
DIMM#1A-DIMM#3B Memory (RAM) Slots
COM1/COM2 COM1/COM2 Serial Port Connector
CPU/Chassis FAN CPU/Chassis Fan Headers
IDE#1/IDE#2 IDE #1/#2 Hard Disk Drive Connectors
FPUSB0/1 Front Side USB0/1 Headers
J9 PS/2 Keyboard/Mouse Ports
J15* Processor Power Connector
J29 Parallel (Printer) Port
JD1 PWR LED Header / Speaker Header/Jumper
JF2 Front Control Panel Connector
JL1 Chassis Intrusion Header
JOH1 Overheat LED
JP7 Floppy Disk Drive Connector
JP8 Third Power Supply Fail Header
JP35 Keylock Switch Connector
JP36 3rd Power Supply Alarm Reset Switch
JWOR1 Wake-on-Ring Header
Mb LAN Mb LAN (Ethernet) Port
Speaker Onboard Speaker Header
USB2 USB2 Header
VGA VGA Display (Monitor) Port
WOL Wake-on-LAN Header

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Introduction
Motherboard Features
CPU
• Single or dual Intel®603-pin XeonTM 512K L2 cache processors at up
to 2.8 GHz at a 400 MHz front side (system) bus speed.
Note: Please refer to the support section of our web site for a complete listing of supported
processors (http://www.supermicro.com/TechSupport.htm).
Memory
• Six 184-pin DDR DIMM sockets supporting up to 12 GB of registered
ECC PC1600 (DDR-200) DDR SDRAM
Note: Interleaved memory; requires memory modules to be installed in pairs. PC2100 (DDR-
266) memory is supported but will only run at 200 MHz. See Section 2-3 for details.
Chipset
• Intel E7500 (Plumas) chipset
Expansion Slots
• One 64-bit, 133 MHz PCI-X
• Two 64-bit, 100 MHz PCI-X
• Three 32-bit, 33 MHz PCI
BIOS
• 4 Mb Phoenix®Flash ROM
• APM 1.2, DMI 2.1, PCI 2.2, ACPI 1.0, Plug and Play (PnP), SMBIOS 2.3
PC Health Monitoring
• Onboard voltage monitors for CPU cores, chipset voltage, 3.3V, +5V,
+12V and 3.3V standby
• Fan status monitor with firmware/software on/off control
• CPU/chassis temperature monitors
• Environmental temperature monitor and control
• CPU fan auto-off in sleep mode
• CPU slow-down on temperature overheat
• CPU overheat LED header
• Power-up mode control for recovery from AC power loss
• Auto-switching voltage regulator for CPU core
• Chassis intrusion detection
• System resource alert

Chapter 1: Introduction
1-11
Introduction
ACPI/PC 98 Features (optional)
• Microsoft OnNow
• Slow blinking LED for suspend state indicator
• Main switch override mechanism
• External modem ring-on
Onboard I/O
• AIC-7902 for dual channel Ultra320 SCSI (P4DPL-8GM only)
• Integrated ATI Rage XL graphics controller
• One Intel 82550 10/100 Mb fast Ethernet and one Intel 82545EM Gb
Ethernet port (P4DPL-8GM/P4DPL-iGM)
• One Intel 82550 10/100 Mb fast Ethernet port (P4DPL-M)
• 2 EIDE Ultra DMA/100 bus master interfaces
• 1 floppy port interface (up to 2.88 MB)
• 2 Fast UART 16550A compatible serial ports
• 1 EPP/ECP Parallel Port (Enhanced Parallel Port/Extended Capabilities
Port)
• PS/2 mouse and PS/2 keyboard ports
• Two USB (Universal Serial Bus) ports, three USB headers (USB 1.1)
Other
• Internal/external modem ring-on
• Recovery from AC power loss control
• Wake-on-LAN (WOL)
• Console redirection
• IPMI (optional)
CD/Diskette Utilities
• BIOS flash upgrade utility
• Device drivers
Dimensions
• P4DPL-8GM: Extended ATX, 12" x 13.05" (304.8 x 331.5 mm)
• P4DPL-iGM: Extended ATX, 12" x 13.05" (304.8 x 331.5 mm)
• P4DPL-M: Extended ATX, 12" x 13.05" (304.8 x 331.5 mm)

SUPER P4DPL-8GM/P4DPL-iGM/P4DPL-M User’s Manual
1-12
Introduction
Figure 1-5. Intel E7500 Chipset:
System Block Diagram
Note: This is a general block diagram. Please see the previous Motherboard
Features pages for details on the features of each motherboard. (Because the
P4DPL-iGM and P4DPL-M have no onboard SCSI controller, PCI-X slots #4 and 5
run on a 100 MHz PCI-X bus.)
MCH
400 MHz Host Bus
200 MHz
Memory Bus
P64H2
Processor Processor
DDR-200
ICH3
66 MHz
PCI Bus
PCI-X Slot
#5 & RAID
PCI-X
Slot #4
SCSI
PCI-X Slot
#6, VXB &
Riser
Gbit LAN
100 MHz
PCI-X Bus
IDE
Audio
CODEC
USB Ports
LPC I/O BIOS FWH
PCI Slot #1
UDMA/100
USB 1.1
AC97
PCI Slot #3
PCI Slot #2
VGA
Mbit LAN
33 MHz PCI Bus
LPC Bus

Chapter 1: Introduction
1-13
Introduction
1-2 Chipset Overview
The Intel E7500 (Plumas) chipset is a high-performance chipset with a per-
formance and feature-set designed for mid-range, dual processor servers.
The E7500 chipset consists of four major components: the Memory Control-
ler Hub (MCH), the I/O Controller Hub 3 (ICH3), the PCI-X 64-bit Hub 2.0
(P64H2) and the 82808AA Host Channel Adapter (VxB).
The MCH has four hub interfaces, one to communicate with the ICH3 and
three for high-speed I/O communications. The MCH employs a 144-bit wide
memory bus for a DDR-200 memory interface, which provides a total band-
width of 3.2 GB/s. The ICH3 interface is a 266 MB/sec point-to-point con-
nection using an 8-bit wide, 66 MHz base clock at a 4x data transfer rate.
The P64H2 interface is a 1 GB/s point-to-point connection using a 16-bit
wide, 66 MHz base clock at a 8x data transfer rate.
The ICH3 I/O Controller Hub provides various integrated functions, including
a two-channel UDMA100 bus master IDE controller, USB host controllers, an
integrated LAN controller, a System Management Bus controller and an
AC'97 compliant interface.
The P64H2 PCI-X Hub provides a 16-bit connection to the MCH for high-
performance I/O capability and two 64-bit PCI-X interfaces.
1-3 Special Features
ATI Graphics Controller
The P4DPL-8GM/P4DPL-iGM/P4DPL-M has an integrated ATI video controller
based on the Rage XL graphics chip. The Rage XL fully supports sideband
addressing and AGP texturing. This onboard graphics package can provide
a bandwidth of up to 512 MB/sec over a 32-bit graphics memory bus.
BIOS Recovery
The BIOS Recovery function allows you to recover your BIOS image file if
the BIOS flashing procedure fails (see Section 3-3).

SUPER P4DPL-8GM/P4DPL-iGM/P4DPL-M User’s Manual
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Introduction
Recovery from AC Power Loss
BIOS provides a setting for you to determine how the system will respond
when AC power is lost and then restored to the system. You can choose
for the system to remain powered off (in which case you must hit the
power switch to turn it back on) or for it to automatically return to a power-
on state. See the Power Lost Control setting in the Advanced BIOS Setup
section (Peripheral Device Configuration) to change this setting. The de-
fault setting is Always On.
1-4 PC Health Monitoring
This section describes the PC health monitoring features of the SUPER
P4DPL-8GM/P4DPL-iGM/P4DPL-M. The motherboard has an onboard System
Hardware Monitor chip that supports PC health monitoring.
Onboard Voltage Monitors for the CPU Cores, Chipset
Voltage, +3.3V, +5V, +12V and +3.3V Standby
An onboard voltage monitor will scan these voltages continuously. Once a
voltage becomes unstable, a warning is given or an error message is sent
to the screen. Users can adjust the voltage thresholds to define the
sensitivity of the voltage monitor.
Fan Status Monitor with Firmware/Software On/Off Control
The PC health monitor can check the RPM status of the cooling fans. The
onboard 3-pin CPU and chassis fans are controlled by the power manage-
ment functions. The thermal fan is controlled by the overheat detection
logic.
Environmental Temperature Control
The thermal control sensor monitors the CPU temperature in real time and
will turn on the thermal control fan whenever the CPU temperature exceeds
a threshold. The overheat circuitry runs independently from the CPU. It can
continue to monitor for overheat conditions even when the CPU is in sleep
mode. Once it detects that the CPU temperature is too high, it will automati-
cally turn on the thermal control fan to prevent any overheat damage to the
CPU. The onboard chassis thermal circuitry can monitor the overall system
temperature and alert users when the chassis temperature is too high.