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The setup of the configuration jumpers on the SBC is described below.

* = default value

NOTE:
For two-position jumpers (3-post), "RIGHT" is toward the bracket end of the board; "LEFT" is toward the memory sockets.

JU1/JU2 SYSTEM FLASH ROM OPERATIONAL MODES

	JU1	JU2
All Blocks Write Enabled	Remove *	Remove *
Boot Block Protected	Install	Remove
Block 2-16 Protected	Remove	Install

JU5/JU7 SPEED LED - LAN 1/LAN 2
These jumpers are used in conjunction with the Link/Speed LEDs for LAN 1 (JU5) and LAN 2 (JU7). The LEDs are located on the SBC's LAN connectors. For further information, see the Ethernet LEDs and Connectors section below.

Install to use the Link/Speed LED to indicate that the Ethernet interface has a valid link at either 1000-Mb/s or 100-Mb/s.
Green = valid link at 1000-Mb/s *
Orange = valid link at 100-Mb/s

Remove to use the Link/Speed LED to indicate that the Ethernet interface has a valid link at either 100-Mb/s or 10-Mb/s.
Orange = valid link at 100-Mb/s
Green = valid link at 10-Mb/s

JU6 THERMAL THROTTLING ACTIVITY LED
If the processor core gets to a critical temperature, it slows itself down to half its normal speed. This jumper sets the way in which the LED displays in response to this self-limiting mode.

Install for real-time activity. The LED lights only when the processor is operating in slow-power mode.*

Remove for latched activity. The LED lights and stays on once the processor has gone into slow-power mode.

JU8 PASSWORD CLEAR
Install for one power-up cycle to reset the password to the default (null password).
Remove for normal operation. *

JU12 CMOS CLEAR
Install on the LEFT to clear.
Install on the RIGHT to operate. *

NOTE: The CMOS Clear jumper works on power-up. To clear the CMOS, power down the system, install the jumper, then turn the power back on. CMOS is cleared during the POST routines. Wait for AMIBIOS to display a "CMOS Settings Wrong" message; then power down the system again and remove the jumper before the next power-up.

ETHERNET LEDS AND CONNECTORS
Each Ethernet interface has two LEDs for status indication and an RJ-45 network connector.

LED/Connector	Description
Activity LED	Orange LED which indicates network activity. This is the upper LED on the LAN connector.
Off =	Indicates there is no current network transmit or receive activity.
On = (flashing)	Indicates network transmit or receive activity.
Link/Speed LED	Bi-color (green/orange) LED which identifies the link status and connection speed. This is the lower LED on the LAN connector.
Green =	Indicates a valid link at either 1000-Mb/s or 10-Mb/s, depending on the setting of the associated Speed LED jumper (JU5 or JU7).
Orange =	Indicates a valid link at 100-Mb/s, regardless of the setting of the associated Speed LED jumper (JU5 or JU7). NOTE: For further information on the Speed LED jumpers, see the Configuration Jumpers section earlier in this chapter.
RJ-45 Network Connector	The RJ-45 network connector requires a category 5 (CAT5) unshielded twisted-pair (UTP) 2-pair cable for a 100-Mb/s network connection or a category 3 (CAT3) or higher UTP 2-pair cable for a 10-Mb/s network connection. A category 5e (CAT5e) or higher UTP 2-pair cable is recommended for a 1000-Mb/s (Gigabit) network connection.

NOTE:
Pin 1 on the connectors is indicated by the square pad on the PCB.

P1 - 10/100/1000BASE-T ETHERNET CONNECTOR - LAN 2
8 pin shielded RJ-45 connector, Belfuse #0826-1X1T-23

PIN SIGNAL 1 TRP1+ 2 TRP1- 3 TRP2+ 4 TRP3+ 5 TRP3- 6 TRP2- 7 TRP4+ 8 TRP4-

P2 - AUXILIARY FAN
3 pin single row header, Molex #22-23-2031

PIN SIGNAL 1 Gnd 2 +12V 3 FanTach

P3 - FLOPPY DRIVE CONNECTOR
34 pin dual row header, Amp #103308-7

PIN SIGNAL 1 Gnd 3 Gnd 5 Gnd 7 Gnd 9 Gnd 11 Gnd 13 Gnd 15 Gnd 17 Gnd 19 Gnd 21 Gnd 23 Gnd 25 Gnd 27 Gnd 29 Gnd 31 Gnd 33 Gnd

PIN SIGNAL 2 N-RPM 4 NC 6 D-Rate0 8 P-Index 10 N-Motoron 1 12 N-Drive Sel2 14 N-Drive Sel1 16 N-Motoron 2 18 N-Dir 20 N-Stop Step 22 N-Write Data 24 N-Write Gate 26 P-Track 0 28 P-Write Protect 30 N-Read Data 32 N-Side Select 34 Disk Chng

P4 - CPU VRM POWER INPUT
4 pin header, Molex #39-29-3046

PIN SIGNAL 1 Gnd 2 Gnd 3 +12V 4 +12V

P4A - KEYBOARD HEADER
5 pin single row header, Amp #640456-5

PIN SIGNAL 1 Kbd Clock 2 Kbd Data 3 Key 4 Kbd Gnd 5 Kbd Power (+5V fused) with self-resetting fuse

P5 - SPEAKER PORT CONNECTOR
4 pin single row header, Amp #640456-4

PIN SIGNAL 1 Speaker Data 2 Key 3 Gnd 4 +5V

P6 - SERIAL PORT 1 CONNECTOR
10 pin dual row header, Amp #103308-1

PIN SIGNAL 1 Carrier Detect 3 Receive Data-I 5 Transmit Data-0 7 Data Terminal Ready-0 9 Signal Gnd

PIN SIGNAL 2 Data Set Ready-I 4 Request to Send-O 6 Clear to Send-I 8 Ring Indicator-I 10 NC

P7 - SERIAL PORT 2 CONNECTOR
10 pin dual row header, Amp #103308-1

PIN SIGNAL 1 Carrier Detect 3 Receive Data-I 5 Transmit Data-0 7 Data Terminal Ready-0 9 Signal Gnd

PIN SIGNAL 2 Data Set Ready-I 4 Request to Send-O 6 Clear to Send-I 8 Ring Indicator-I 10 NC

P8 - PARALLEL PORT CONNECTOR
26 pin dual row header, Amp #103308-6

PIN SIGNAL 1 Strobe 3 Data Bit 0 5 Data Bit 1 7 Data Bit 2 9 Data Bit 3 11 Data Bit 4 13 Data Bit 5 15 Data Bit 6 17 Data Bit 7 19 ACK 21 Busy 23 Paper End 25 Slct

PIN SIGNAL 2 Auto Feed XT 4 Error 6 Init 8 Slct In 10 Gnd 12 Gnd 14 Gnd 16 Gnd 18 Gnd 20 Gnd 22 Gnd 24 Gnd 26 NC

P9 - PS/2 MOUSE AND KEYBOARD CONNECTOR
6 pin mini DIN, Kycon #KMDG-6S-BS-PS

PIN SIGNAL 1 Ms Data 2 Kbd Data 3 Gnd 4 Kbd Power (+5V fused) with self-resetting fuse 5 Ms Clock 6 Kbd Clock

P9A - PS/2 MOUSE HEADER
6 pin single row header, Amp #640456-6

PIN SIGNAL 1 Ms Data 2 Reserved 3 Gnd 4 Power (+5V fused) with self-resetting fuse 5 Ms Clock 6 Reserved

P10 - EXTERNAL RESET CONNECTOR
2 pin header, Amp #640456-2

PIN SIGNAL 1 External Reset In (Low Active) 2 Gnd

P11 - PRIMARY IDE HARD DRIVE CONNECTOR
40 pin dual row header, 3M #30340-6002HB

PIN SIGNAL 1 Reset 3 Data 7 5 Data 6 7 Data 5 9 Data 4 11 Data 3 13 Data 2 15 Data 1 17 Data 0 19 Gnd 21 DRQ 0 23 IOW 25 IOR 27 IORDY 29 DACK 0 31 IRQ 14 33 Add 1 35 Add 0 37 CS 1P 39 IDEACTP

PIN SIGNAL 2 Gnd 4 Data 8 6 Data 9 8 Data 10 10 Data 11 12 Data 12 14 Data 13 16 Data 14 18 Data 15 20 NC 22 Gnd 24 Gnd 26 Gnd 28 SELPDP 30 Gnd 32 NC 34 PCBL DET * 36 Add 2 38 CS 3P 40 Gnd

P11A - PRIMARY IDE HARD DRIVE CONNECTOR
40 pin dual row header, 3M #30340-6002HB

PIN SIGNAL 1 Reset 3 Data 7 5 Data 6 7 Data 5 9 Data 4 11 Data 3 13 Data 2 15 Data 1 17 Data 0 19 Gnd 21 DRQ 1 23 IOW 25 IOR 27 IORDY 29 DACK 1 31 IRQ15 33 Add 1 35 Add 0 37 CS 1S 39 IDEACTS

PIN SIGNAL 2 Gnd 4 Data 8 6 Data 9 8 Data 10 10 Data 11 12 Data 12 14 Data 13 16 Data 14 18 Data 15 20 NC 22 Gnd 24 Gnd 26 Gnd 28 SELPDS 30 Gnd 32 NC 34 SCBL DET * 36 Add 2 38 CS 3S 40 Gnd

* For ATA/66 and ATA/100 drives, which should be set for Cable Select for proper speed operation. If other drives are detected, pin definition is Gnd.

P12 - HARD DRIVE LED CONNECTOR
4 pin single row header, Amp #640456-4

PIN SIGNAL 1 LED + 2 LED - 3 LED - 4 LED +

P13 - SYSTEM MANAGEMENT BUS CONNECTOR
2 pin single row header, Amp #640456-2

PIN SIGNAL 1 SMB Clock 2 SMB Data

P14 - +5V VRM SUPPLY
2 pin header, Molex #39-29-3026

PIN SIGNAL 1 +5V 2 +5V

P15 - PCI SXGA INTERFACE CONNECTOR
15 pin VGA Ultra Compact connector, Amp #788574-1

PIN SIGNAL     1 Red     2 Green     3 Blue     4 NC     5 Gnd

PIN SIGNAL     6 Gnd     7 Gnd     8 Gnd     9 +5V     10 Gnd

PIN SIGNAL     11 NC     12 EEDI     13 HSYNC     14 VSYNC     15 EECS

P16 - 10/100/1000BASE-T ETHERNET CONNECTOR - LAN 1
8 pin shielded RJ-45 connector, Belfuse #0826-1X1T-23

PIN SIGNAL 1 TRP1+ 2 TRP1- 3 TRP2+ 4 TRP3+ 5 TRP3- 6 TRP2- 7 TRP4+ 8 TRP4-

P17 - UNIVERSAL SERIAL BUS (USB) CONNECTOR
8 pin dual row header, Molex #702-46-0821
(+5V fused with self-resetting fuses)

PIN SIGNAL 1 +5V - USB0 3 USB0- 5 USB0+ 7 Gnd - USB0

PIN SIGNAL 2 +5V - USB1 4 USB1- 6 USB1+ 8 Gnd - USB1

P18 - SYSTEM HARDWARE MONITOR CONNECTOR
4 pin single row header, Amp #640456-4

PIN	SIGNAL
1	Gnd
2	GPO (General Purpose Output)
3	CI (Chassis Intrusion Input)
4	OVT (Over Temperature)

P19 - CPU FAN 1
3 pin single row header, Molex #22-23-2031

PIN SIGNAL 1 Gnd 2 +12V 3 FanTach

P20 - MEZZANINE I/O EXPANSION BOARD CONNECTOR
38 pin connector, Amp #767087-1

PIN SIGNAL 1 HUSTBS 3 HUSTBF 5 HSTBS 7 HSTBF 9 PCLK66 11 HI21 13 HI20 15 HI18 17 HI17 19 HI16 21 HI15 23 HI14 25 HI13 27 +3.3V 29 +3.3V 31 +3.3V 33 +3.3V 35 +3.3V 37 PCIRST#

PIN SIGNAL 2 HI12 4 HI11 6 HI10 8 HI9 10 HI8 12 HI7 14 HI6 16 HI5 18 HI4 20 HI3 22 HI2 24 HI1 26 HI0 28 +5V 30 +5V 32 +5V 34 +5V 36 INTD# 38 PWRGOOD

P21 - POWER GOOD LED
2 pin single row header, Amp #640456-2

PIN SIGNAL 1 LED - 2 LED +

The Double Data Rate (DDR) memory interface consists of two channels and supports auto detection of up to 4GB of memory. The System BIOS automatically detects memory type, size and speed.

The SBC uses industry standard 72-bit wide gold finger PC1600 or PC2100 memory modules in two 184-pin sockets.

NOTE: Memory modules must be installed in both sockets and must be the same size. All memory modules must have gold contacts.

The SBC supports DIMMs which are PC1600/PC2100 compliant and have the following features:

• 184-pin with gold-plated contacts
• ECC (72-bit) memory
• Registered configuration

The following DIMM sizes are supported:

* Intel and Pentium are registered trademarks and Xeon is a trademark of Intel Corporation.

All other product names are trademarks of their respective owners.

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