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COM2 Port Connector 

Low ESR Capacitor (1500uF) 

ATX Power Connector 

ATI Rage XL Video Chip with 
4MB Video RAM onboard 

Intel

®

 82550 10/100Mbps 

Ethernet Controller 

370-pin CPU Socket x2 
FSB133 MHz Coppermine and Tualatin 
CPU Supported 

CPU Fan Connector with H/W 
Monitoring x2 

Server Works

®

 ServerSet™ III   

LE Chipset 

Thermal Sensor Connector x2 

PC 100/133 DIMM x4 (Maximum up 
to 4GB, 1GB per DIMM slot) 

Redundant SPS Connector 

Front Panel Connector

BP (Backplane) Connector

WOL (Wake On LAN) Connector

32bit PCI Slot x2

64bit PCI Slot x4

Flash ROM BIOS

External Speaker Connector

JP5 System Event Clear Jumper

FDD Connector

JP8 Password Check Jumper

Adaptec AIC-7899 Ultra160 SCSI

 Controller (DX3R Plus-U only)

System Event LED Connector

68-pin SCSI connector x2

(DX3R Plus-U only)

JP6 SCSI terminator Jumper

2

nd

USB Connector

NMI Switch Connector 

JP10 CPU Terminator Jumper

50-pin SCSI Connector

(DX3R Plus-U only)

CPU 2 

System Fan Connector (4-pins)

RJ45 LAN 

Jack  

IDE Connector

System Fan Connectors (4-pins) 

y

CPU 1 

PS/2 Mouse 

Connector 

SPP/EPP/ECP Parallel Port

COM 1 Port 

VGA Connector 

PS/2 Keyboard 

Connector

USB Port 

CPU 2 

Summary of Contents for DX3R-U

Page 1: ...onnector WOL Wake On LAN Connector 32bit PCI Slot x2 64bit PCI Slot x4 Flash ROM BIOS External Speaker Connector JP5 System Event Clear Jumper FDD Connector JP8 Password Check Jumper Adaptec AIC 7899 Ultra160 SCSI Controller DX3R Plus U only System Event LED Connector 68 pin SCSI connector x2 DX3R Plus U only JP6 SCSI terminator Jumper 2nd USB Connector NMI Switch Connector JP10 CPU Terminator Jum...

Page 2: ... Market Housing x 1 SCSI Utility Diskette Pack x 1 DX3R Plus U only User Manual x 1 This Easy Installation Guide x 1 Plug in the CPU fan cable to the 3 pin CPU FAN connector and housing fan cable to the Housing Fan connector 1 Pull up the CPU socket level and up to 90 degree angle 2 Locate Pin 1 in the socket and look for a golden cut edge on the CPU upper interface Match Pin 1 and cut edge Then i...

Page 3: ...or The Thermal Sensor Connector CN7 CN25 provides you to use the thermal sensor to detect the temperature of the components on the motherboard Thermal Sensor connector GND Sensor 1 1 Single Processor Dual Processor Default DIMM 1 DIMM 2 DIMM 3 DIMM 4 Note The ServerSet III LE chipset only allows you using the Registered SRAM with it 6 Connecting ATX Power Connector The DX3R Plus U DX3R U uses 20 p...

Page 4: ...l I2 C CLK Present 1 Fan 3 Fail Fan 1 Fail PS 2 Fail PS_ON PS 3 Fail Fan 2 Fail Present 2 5VSB Present 3 I2 CDA GND 8 Connecting IDE and Floppy Cables Connect 34 pin floppy cable and 40 pin IDE cable to floppy connector FDC and IDE connector Pin1 of cable is normally marked with red color Be careful of the pin1 orientation Wrong orientation may cause system damage FDD Connector IDE Connector Prima...

Page 5: ... to install network management software such as ADM for the checking of how to wake up the system Non Maskable Interrupt used for event handling When event is occurred system will receive an NMI and execute a unique task To disable this function please short CN18 by jumper cap This motherboard supports four USB ports Two of them are on back panel connector the other two are on the left bottom area...

Page 6: ...tor 16 External Speaker Connector 18 Power On and Load BIOS Setup After you finish the setting of jumpers and connect correct cables Power on and enter the BIOS Setup press Del during POST Power On Self Test Choose Load Default Setting for recommended optimal performance Del 1 GND N C I2 C CLK I2 CDA Pin 1 GND N C N C 5V Pin 1 17 Event LED Connector The DX3R Plus U DX3R U BIOS supports the system ...

Page 7: ...The problem should be caused by the IDE cables or HDD itself Re install Windows 95 Windows 98 or Windows NT Yes Yes Turn off the power and unplug the AC power cable then remove all of the addon cards and cables including VGA IDE FDD COM1 COM2 and Printer Turn on the power and check if the power supply and CPU fan work properly Start Check if there is display Press Ctrl and Alt key at the same time...

Page 8: ...part number serial number and BIOS version are also very helpful 7 7 Dear Customer Thanks for choosing AOpen products To provide the best and fastest service to our customer is our first priority However we receive numerous emails and phone calls worldwide everyday it is very hard for us to serve everyone on time We recommend you follow the procedures below and seek help before contact us With you...

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