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29
J19: Fan Connector Reserved for Barebone
Signal
Pin
Pin
Signal
TACH1
1
2 TACH6
TACH2
3
4 TACH7
TACH3
5
6 TACH8
TACH4
7
8 TACH9
TACH5
9
10
TACH10
GND
11
12
-
PWM2
13
14
PWM1
TACH11
15
16
SMBDATA
TACH12
17
18
SMBCLK
VCC3_AUX
19
20
PWM3
J26: Clear CMOS Jumper
Normal, RTC
reset (
Default
)
You can reset the CMOS settings by using this jumper. This can be
useful if you have forgotten your system/setup password, or need to
clear the system BIOS setting.
1. Power off system and disconnect power connectors from the
motherboard.
2. Remove the jumper from Pin_2 and Pin_3 (Default setting).
3. Move the jumper cap to close Pin_1 and Pin_2 for several seconds
to Clear CMOS.
4. Put jumper cap back to Pin_2 and Pin_3 (Default setting).
5. Reconnect power connectors to the motherboard and power on
system.
Clear RTC
registers
J111: SPI Bus Select Jumper
Pin 1-3 and 4-6 Closed: PCH to SPI (
Default)
Pin 2-4 and 3-5 Closed: BMC to SPI
J25: ME Firmware Update Jumper
Pin 1-2 Closed: Normal (
Default)
Pin 2-3 Closed: ME Recovery
Summary of Contents for Tyan S5542
Page 2: ...http www tyan com 2 ...
Page 21: ...http www tyan com 21 2 2 Block Diagram S5542 Block Diagram ...
Page 22: ...http www tyan com 22 2 3 Mainboard Mechanical Drawing ...
Page 30: ...http www tyan com 30 2 5 LED Definitions ...
Page 39: ...http www tyan com 39 ...
Page 57: ...http www tyan com 57 3 3 4 1 Sensor Data Register Monitoring Read only ...
Page 58: ...http www tyan com 58 3 3 5 Super IO Configuration Super IO Chip Read only ...
Page 73: ...http www tyan com 73 3 3 12 NVMe Configuration Read only ...
Page 104: ...http www tyan com 104 NOTE ...