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2.6 Setting up Jumpers and Onboard Connectors
2.6-A. Front Panel Connector (J12)
Your chassis will usually come with connectors to install onto
the motherboard, such as HDD and Power LEDs. The Front
Panel Connector has been implemented for such purposes.
2.6-B. CMOS Reset (J21)
If you have been locked out of your system because you forgot your password or set the CMOS incor-
rectly, or have just finished flashing your BIOS follow the instructions below.
By following this procedure, you will erase your password and reset the CMOS.
1. Power off the system, and disconnect the power supply
2. Close pins 2-3 on J21
3. Wait about three seconds
4. Close pins 1-2 on J21, then power on the system again
Pinouts for certain connectors are available on the Tyan website: http://www.tyan.com
* default is 1-2
J21
1-2
normal
2-3
clear
9
HDD LED
GND
SWITCH
7
810
+5VCC
SPEAKER
1214
11131517
1618
no connect
no connect
19
20
21
22
23
24
25
26
53
46
Abbreviations
ResetRST
PWR Power
SLP Sleep
1
2
VCC GND
RST
SW
SPEAKER
PWR
SW
GND
SWITCH
SLP
SW
GND
SWITCH
PWR
LED
KEY
LK
VCC
no connect
GND
GND
KEYLOCK