Supero SUPER P3TDL3, Руководство пользователя

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Chapter 2: Installation
2-15
2-8 Jumper Settings
Explanation of
Jumpers
To modify the operation of the moth-
erboard, jumpers can be used to
choose between optional settings.
Jumpers create shorts between two
pins to change the function of the
connector. Pin 1 is identified with a
square solder pad on the printed cir-
cuit board. See the motherboard
layout pages for jumper locations.
C o n n e c t o r
P i n s
J u m p e r
C a p
Setting
Pin 1-2 short
3 2 1
3 2 1
SCSI Termination Enable/
Disable (P3TDL3 only)
Jumper JP1 allows you to enable
or disable termination for the SCSI
connectors. The normal (default)
position is on pins 1-2 to enable
SCSI operation. See Table 2-28
for jumper settings.
J u m p e r
P o s itio n
P in s 1 -2
P in s 2 -3
D e fin itio n
E n a b le d
D is a b le d
T a b le 2 -2 8
S C S I T e rm in atio n
E n a b le /D is a b le
J u m p e r S e tting s (J P 1 )
CMOS Clear
JBT1 is not literally a jumper but
consists of two contact pads. To
clear the contents of CMOS, short
these pads together by touching
them both with a metal conductor
s u c h a s t h e h e a d o f a s m a l l
s c r e w d r i v e r . F o r A T X p o w e r
supplies, you must completely shut
down the system and remove the
AC power cord before clearing
CMOS. Do not use the PW_ON
connector to clear CMOS.