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Chapter 2: Installation
2-21
SCSI Enable/Disable
(*P8SC8 only)
The SCSI Enable/Disable jumper at
JPA1 allows you to enable or dis-
able the onboard SCSI. The nor-
mal (default) position is on pins 1-
2 to enable SCSI. See the table on
the right for jumper settings.
Jumper
Position
Pins 1-2
Pins 2-3
Definition
Enabled
Disabled
SCSI Enable/Disable
Jumper Settings
(JPA1)
Force-Power-On Enable/
Disable
Jumper JPF allows you to enable or
disable the function of Force-
Power-On. If enabled, the power
will always stay on automatically.
If this function disabled, the user
needs to press the power button to
power on the system.
Jumper
Position
Open
Closed
Definition
Normal
Force On
Force Power On
(JPF)
KB/MS
USB0/1
COM1
VGA
Parallel Port
JPUSB1
ATX-24 Pin PW
R
JPF
JPWAKE1
4-Pin
PW
R
CPU
CopperRiver
NorthBridge
GLAN1
GLAN2
DIMM 1A
DIMM 1B
DIMM 2A
DIMM 2B
GLAN
CTRL
GLAN
CTRL
JPL1
JPL2
PCI-X 133/100 MHz
PCI-Ex1
(LG
A 775)
SCSI CTRL
7902 W
SCSI Channel A
SCSI Channel B
J
W
D
U
S
B
6
/7
B
IO
S
J
L
1
IDE
Floppy
J
5
J
B
T
1
J
F
1
JLED
F
a
n
3
F
a
n
2
J
S
L
E
D
Fan1
Fan5
Fan4
IC
H
6
R
S
o
u
th
B
rid
g
e
PXH-V
PCI 33MHz
B
a
tte
ry
PCI-Ex1
S
A
T
A
3
S
A
T
A
2
S
A
T
A
1
S
A
T
A
0
J
W
O
R
J
P
A
1
IPM
I
C
O
M
2
U
S
B
2
/3
B
u
z
z
e
r
W
O
L
JBT1
J
9
JSLED
LE1
E7221
Force PWR- On
SCSI Enable