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Chapter 2: Installation
2-11
Clear CMOS (JBT1~4)
JBT is used to clear CMOS. Instead of pins,
this "jumper" consists of contact pads to pre
-
vent accidental clearing of CMOS. To clear
CMOS, use a metal object such as a small
screwdriver to touch both pads at the same
time to short the connection.
B1SA4-F
J2
J22
JKVM2
JKVM3
JKVM4
JKVM1
MH
2
MH1
J20
LED1
LED2
LED3
LED4
JBT1
JBT2
JBT3
JBT4
JWD1
JWD3
J5
JWD4
J21
J18
JWD2
Q55
MH
4
MH5
MH3
C1272
P3-JBT1
P4-JBT1
P1
P2-JBT1
JWD1
P1
-JWD
1
P2-JWD1:
P3-JWD1
P4-JWD1
WATCH
1-2:RST
2-3:NMI
DOG
WATCH
1-2:RST
2-3:NMI
DOG
WA
TC
H
1-2:RST
2-3:NM
I
DO
G
DOG
WATCH
2-3:NMI
1-2:RST
P4-DIMMB1
P4-DIMMA1
P3-DIMMA1
P3-DIMMB1
P2-DIMMB1
P2-DIMMA1
P1-DIMMB1
P1-DIMMA1
CPU2
CMOS
CLEAR
CMOS
CLEAR
CMOS
CLEAR
CMOS
CLEAR
A
B
C
D
A. JBT1
B. JBT2
C. JBT3
D. JBT4
BMC Heartbeat (LED1~4)
When blinking,the BMC Heartbeat LED is an
indicator that the onboard Baseboard Manage
-
ment Controller (BMC) is working normally.
There is one LED indicator for each node on
the motherboard.
B1SA4-F
J2
J22
JKVM2
JKVM3
JKVM4
JKVM1
MH
2
MH1
J20
LED1
LED2
LED3
LED4
JBT1
JBT2
JBT3
JBT4
JWD1
JWD3
J5
JWD4
J21
J18
JWD2
Q55
MH
4
MH5
MH3
C1272
P3-JBT1
P4-JBT1
P1
P2-JBT1
JWD1
P1
-JWD
1
P2-JWD1:
P3-JWD1
P4-JWD1
WATCH
1-2:RST
2-3:NMI
DOG
WATCH
1-2:RST
2-3:NMI
DOG
WA
TC
H
1-2:RST
2-3:NM
I
DO
G
DOG
WATCH
2-3:NMI
1-2:RST
P4-DIMMB1
P4-DIMMA1
P3-DIMMA1
P3-DIMMB1
P2-DIMMB1
P2-DIMMA1
P1-DIMMB1
P1-DIMMA1
CPU2
CMOS
CLEAR
CMOS
CLEAR
CMOS
CLEAR
CMOS
CLEAR
A
B
C
D
A. LED1
B. LED2
C. LED3
D. LED4
2-6 Onboard Indicators
Summary of Contents for B1SA4-2550F
Page 1: ...USER S MANUAL Revision 1 0 B1SA4 2750F B1SA4 2550F ...
Page 14: ...xiv B1SA4 2750F B1SA4 2550F Motherboard User s Manual Notes ...
Page 26: ...1 12 B1SA4 2750F B1SA4 2550F Motherboard User s Manual Notes ...
Page 38: ...2 12 B1SA4 2750F B1SA4 2550F Motherboard User s Manual Notes ...
Page 44: ...3 6 B1SA4 2750F B1SA4 2550F Motherboard User s Manual Notes ...
Page 80: ...A 2 B1SA4 2750F B1SA4 2550F Motherboard User s Manual Notes ...
Page 84: ...B 4 B1SA4 2750F B1SA4 2550F Motherboard User s Manual Notes ...