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1. Setting Jumpers
Note: There are no Jumper settings for CPU bus speed or clock multiplier on the
Trinity KT-A board. The Trinity KT-A is designed to automatically detect the
socketed Duron™ / Athlon™ CPU and its proper speed settings.
1-A. J1 External Pin Assignments
VCC
LED
Ground
Switch
IR +5V
NO CONNECT 11
IR RX
IR GND
IR T X
1-B. Power LED (JP22)
Pin
1-C. Clear CMOS and Reset Password (JP21)
J
P
2
!
If you have been locked out of your system because you forgot your password or set
the CMOS incorrectly, follow the instructions below.
important!
1. Power off the system, and disconnect the power supply.
2. Set jumper JP21 to pins 2 and 3
3. Wait for 10 seconds, then return jumper JP21 to pins 1 and 2.
4. Power on the system again.
By following this procedure, you will erase your password and reset the CMOS to the
BIOS defaults.
1-D. Wake-On Modem Connector (optional) (WOM1)
Pin
1-E. Wake-On LAN Connector (optional) (WOL1)
Pin
S2390B Trinity KT-A
1
2
Power LED+
3
4
Sleep LED+
5
6
Switch
7
8
Ground
9
10 NO CONNECT
12 VCC
13
14 NO CONNECT
15
16 NO CONNECT
17
18 External Speaker
1
2
+5 VSB
Ground
LED YEL
LED GRN
N
r o
m
l a
C
e l
r a
1
1
2 -
2
3 -
1
2
+5 V SB Ground
1
2
+5 V SB Ground
JP22
Jumper JP22 is a 3-pin ACPI LED
3
header. If you need a 2-pin Power
VCC
LED header, use jumper J1 above.
3
WOR
3
WOL
15
WOM1,
JP21
WOL1
(clear CMOS)
J1
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