Supermicro 2020A-8R, User Manual

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Chapter 5: Advanced Serverboard Setup
5-11
H8DA8 Quick Reference
Jumpers Description Default Setting
J3P 3rd Power Fail Signal En/Dis Open (Disabled)
JBT1 CMOS Clear See Section 5-9
JI
2
C1/2 I
2
C to PCI Enable/Disable Closed (Enabled)
JPA1 SCSI Controller En/Disable Pins 1-2 (Enabled)
JPA2/3 SCSI CH A/B Term. En/Dis Open (Enabled)
JPG1 VGA Enable/Disable Pins 1-2 (Enabled)
JPL JLAN1/JLAN2 En/Disable Pins 1-2 (Enabled)
JWD Watch Dog Pins 1-2 (Reset)
Connectors Description
1U IPMI IPMI 2.0 Socket
COM1, COM2 COM1/COM2 Serial Port/Header
DP1 Onboard +3.3V Power LED
Fans 1-8 System Fan Headers
J22 System Management Bus Header
J24 I
2
C Header
J101 PS/2 Keyboard/Mouse Ports
J1B4 24-Pin ATX Power Connector
JA1 Ultra320 SCSI Channel A Connector
JAR Power Supply Alarm Reset Header
JB2* Ultra320 SCSI Channel B Connector
JD1 Internal Speaker (Buzzer) Enable/Power LED Header
JF1 Front Panel Connector
JFDD1 Floppy Disk Drive Connector
JIDE#1/JIDE#2 IDE#1/IDE#2 Connectors
JK1 Keylock Header
JL1 Chassis Intrusion Header
JLAN1/2 Gigabit Ethernet (RJ45) Ports
JOH1 Overheat Warning Header
JP10 Power Fail and Alarm Reset Header
JPW2 8-Pin Power Connector
JWOL Wake-On-LAN Header
JWOR Wake-On-Ring Header
SPKR Onboard Speaker (Buzzer)
USB0/1 Universal Serial Ports1/2
USB2/3/4 USB Headers
VGA Video Port