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NOTE:
For two-position jumpers (3-post), "TOP" is toward the memory sockets; "BOTTOM" is toward the edge fingers.

* = default value

JU8 PASSWORD CLEAR
INSTALL = Reset to null
REMOVE = Normal operation *

JU9/JU9A SCSI TERMINATION - CHANNEL 0
These two jumpers may be used to enable or disable
on-board active termination for the Ultra3 SCSI interface.

	JU9	JU9A
Enable active termination	Install *	Install *
Disable active termination	Remove	Remove
Enable upper byte only	Remove	Install

JU10/JU11 SYSTEM FLASH ROM OPERATIONAL MODES
The Flash ROM has two programmable sections: the Boot Block for "flashing" in the BIOS and the Main Block for the executable BIOS and PnP parameters. Normally only the Main Block is updated when a new BIOS is flashed into the system.

	JU10	JU11
Program All (Boot and Main)	Top	Top
Normal PnP (Program Main Block)	Top *	Bottom *
Write Protect	Bottom	Bottom

JU12 CMOS CLEAR
INSTALL = Clear CMOS
REMOVE = 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 Checksum Bad" message; then power down the system again and remove the jumper before the next power-up.

JU15 3.3V MONITOR ENABLE
INSTALL = Enable 3.3V monitor
REMOVE = Disable monitor *

NOTE: JU15 enables the 3.3V monitor, which monitors the 3.3V power plane of the backplane. This voltage is routed to the SBC via the PICMG® connector. The monitor generates a RESET to the SBC if 3.3V is below tolerance. If your system does not supply 3.3V to the backplane, this jumper must be removed (disabled).

JU16 WATCHDOG TIMER
TOP = Enable watchdog
BOTTOM = Normal reset*

JU19 SCSI ACTIVITY LED ENABLE

INSTALL=	Light the hard drive LED for SCSI drive activity *
REMOVE=	No SCSI drive (i.e., the SCSI controller is not being used)

W7 SPREAD SPECTRUM ENABLE

INSTALL=	Enable spread spectrum for the processor oscillator, which may reduce EMI levels at some frequencies. *
REMOVE=	Disable.

NOTE: The W7 jumper is included on SBCs with revision J-05 or later. Revisions of H-04 and earlier do not have this jumper.

On revisions L-07 or later, the default for W7 is "enabled"; on earlier revisions, the default was "disabled."

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

LED/Connector	Description
Link/Activity LED	Green LED which indicates the link status.
Off =	The Ethernet interface did not find a valid link on the network connection. Transmit and receive are not possible.
On = (solid)	The Ethernet interface has a valid link on the network connection and is ready for normal operation. The Speed LED identifies connection speed.
On = (flashing)	Indicates network transmit or receive activity.
Speed LED	Amber LED which identifies connection speed.
Off =	Indicates a 10Mb/s connection.
On =	Indicates a 100Mb/s connection.
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.

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

P1 - PCI 10/100BASE-T ETHERNET CONNECTOR
8 pin shielded RJ-45 connector, Pulse #J0035D21B

PIN SIGNAL 1 TD+ 2 TD- 3 RX+ 4 NC 5 NC 6 RX- 7 NC 8 NC

P2 - CPU FAN 2
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

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 - KEYBOARD AND PS/2 MOUSE 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 Kbd Gnd 4 Kbd 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 Gnd 36 Add 2 38 CS 3P 40 Gnd

P11A - SECONDARY 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 Gnd 36 Add 2 38 CS 3S 40 Gnd

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

(This connector is used for both IDE and SCSI drives. See JU19 in the Jumpers section.)

PIN SIGNAL 1 +5V Pullup 2 Light 3 Light 4 +5V Pullup

P13 - PCI ULTRA3 SCSI CONTROLLER CONNECTOR (CHANNEL 0)
50/68 high density SCSI connector, Amp #749069-7

PIN SIGNAL 1 SCD12 2 SCD13 3 SCD14 4 SCD15 5 SCDPH 6 SCD0 7 SCD1 8 SCD2 9 SCD3 10 SCD4 11 SCD5 12 SCD6 13 SCD7 14 SCDPL 15 Gnd 16 DIFSENSE 17 TERMPWR 18 TERMPWR 19 NC 20 Gnd 21 SCATN 22 Gnd 23 SCBSY 24 SCACK 25 SCRST 26 SCMSG 27 SCSEL 28 SCCD 29 SCREQ 30 SCIO 31 SCD8 32 SCD9 33 SCD10 34 SCD11

PIN SIGNAL 35 SCD#12 36 SCD#13 37 SCD#14 38 SCD#15 39 SCDPH# 40 SCD#0 41 SCD#1 42 SCD#2 43 SCD#3 44 SCD#4 45 SCD#5 46 SCD#6 47 SCD#7 48 SCDPL# 49 Gnd 50 Gnd 51 TERMPWR 52 TERMPWR 53 NC 54 Gnd 55 SCATN# 56 Gnd 57 SCBSY# 58 SCACK# 59 SCRST# 60 SCMSG# 61 SCSEL# 62 SCCD# 63 SCREQ# 64 SCIO# 65 SCD#8 66 SCD#9 67 SCD#10 68 SCD#11

P15 - PCI SVGA INTERFACE CONNECTOR
15 pin VGA Ultra Compact connector,
Kycon #K31-E15S-N

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 - PCI 10/100BASE-T ETHERNET CONNECTOR
8 pin shielded RJ-45 connector, Pulse #J0035D21B

PIN SIGNAL 1 TD+ 2 TD- 3 RX+ 4 NC 5 NC 6 RX- 7 NC 8 NC

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	OS# (Temperature Sense Output)

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

PIN SIGNAL 1 Gnd 2 +12V 3 FanTach

The DRAM interface consists of two dual in-line memory module (DIMM) sockets and supports auto detection of memory up to 2GB of Synchronous DRAM (SDRAM). The System BIOS automatically detects memory type, size and speed.

The SBC uses industry standard 72-bit wide gold finger DIMM DRAM in two 168-pin DIMM sockets.

NOTE: Memory can be installed in one or both DIMM sockets. If only one DIMM module is used, it must be populated in the top DIMM socket (Bank 0 - BK0). If two modules are used, they must be the same DIMM type, but may be different sizes (see table below). EDO DIMMs and unbuffered SDRAM DIMMs are not supported. All DIMMs must have gold contacts.

The SBC supports DIMM memory modules which are PC-133 compliant and have the following features:

• 168-pin DIMMs with gold-plated contacts
• 133MHz SDRAM
• ECC (72-bit) memory
• 3.3 volt
• Registered configuration

All memory components and DIMMs used with the SBC must be PC-133 compliant, which means that they comply with IBM's PC133 SDRAM registered DIMM design specification.

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

All other product names are trademarks of their respective owners.

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