
Chapter 1: Introduction
1-5
H8DC8/H8DCi Quick Reference
Jumpers
Description
Default
Setting
J13
USB Standby Power En/Dis Pins 1-2 (Disabled)
J26
Audio Output
Pins 5-6, 9-10 Closed
J3P
3rd Power Fail Detect En/Dis Closed (Enabled)
JBT1
CMOS Clear
See Section 2-7
JI
2
C1/2 I
2
C to PCI Enable/Disable
Closed (Enabled)
JPA1
SCSI Enable/Disable
Pins 1-2 (Enabled)
JPA2/JPA3
SCSI Channel A/B Term.
Open (Enabled)
JPAC
Audio
Enable/Disable
Pins
1-2
(Enabled)
JPX1A
PCI-X Slot #1 Freq. Select
Open (Auto)
JPX1B
PCI-X Slots #2/3 Freq. Select Open (Auto)
JWD
Watch
Dog
Pins
1-2
(Reset)
Connectors
Description
AUX1
Auxiliary Connection for Audio
CD1
Audio Out for CD
COM1, COM2
COM1/COM2 Serial Ports
FAN 1-8
System Fan Headers
JIDE#1/JIDE#2
IDE Drive Connectors
J1B4
24-Pin ATX Power Connector
J4
Parallel (Printer) Port
J22
System Management Bus Header
J24
Power Supply I
2
C Header
J32
4-pin
Auxiliary
Power
Connector
JA1
U320
SCSI
Channel
A
Connector
JAR
3rd Power Supply Alarm Reset Header
JB2
U320 SCSI Channel B Connector
JC1/JC2
JC1: MIC Port, JC2: LineIn/LineOut Ports
JD1
Onboard
Speaker/Keylock/Power
LED
JF1
Front
Panel
Connector
JFDD1
Floppy Disk Drive Connector
JK1
Keylock
Header
JL1
Chassis
Intrusion
Header
JLAN1/2
Gigabit Ethernet (RJ45) Ports
JOH1
Overheat Warning Header
JPW2 8-Pin
Processor
Power
Connector
JWOL Wake-On-LAN
Header
JWOR Wake-On-Ring
Header
SATA0-3
Serial
ATA
Connectors
USB0/1/2/3
Universal Serial Bus (USB) Ports 0/1/2/3
USB4/5, USB6/7
Additional USB Headers