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93
J54: COM Port Header
Signal
Pin
Pin
Signal
DCD
1
2
DSR
RXD
3
4
RTS
TXD
5
6
CTS
DTR
7
8
RI
GND
9
10
KEY-Pin
J18/J20: 4-pin CPU FAN Connector
Pin
1
2
3
4
Signal
GND 12V TACH PWM
Use this header to connect the cooling fan to your motherboard
to keep the system stable and reliable.
J18: for CPU0 J20: for CPU1
J42: System Fan Board Pin Header
Signal
Pin Pin Signal
BMC_TACH_SYS_FAN2
1
2
BMC_TACH_SYS_FAN7
BMC_TACH_SYS_FAN3
3
4
BMC_TACH_SYS_FAN8
BMC_TACH_SYS_FAN4
5
6
BMC_TACH_SYS_FAN9
BMC_TACH_SYS_FAN5
7
8
BMC_TACH_SYS_FAN10
BMC_TACH_SYS_FAN6
9
10
BMC_TACH_SYS_FAN11
GND
11
12
GND
BMC_PWM_BUFS_FAN3
13
14
BMC_PWM_BUFS_FAN2
BMC_TACH_SYS_FAN12
15
16
BMC_SDA3
BMC_TACH_SYS_FAN13
17
18
BMC_SCL3
3.3V
19
20
BMC_PWM_BUFS_FAN2
3.3V
21
22
GND
BMC_TACH_SYS_FAN14
23
24
BMC_TACH_SYS_FAN1
BMC_TACH_SYS_FAN15
25
26
BMC_TACH_SYS_FAN0
BMC_PWM_BUFS_FAN5
27
28
BMC_PWM_BUFS_FAN6
BMC_PWM_BUFS_FAN0
29
30
GND
Summary of Contents for B8251T83E8HR-2T-N
Page 1: ...1 http www tyan com TN83 B8251 Service Engineer s Manual...
Page 12: ...12 http www tyan com NOTE...
Page 16: ...http www tyan com 16...
Page 30: ...http www tyan com 30 1 5 7 Chassis Dimensions...
Page 34: ...http www tyan com 34 3 Push the rear top cover backward to lift it up 4 Remove the air duct...
Page 36: ...http www tyan com 36 4 Replace the front top cover...
Page 50: ...http www tyan com 50 3 Repeat the same procedures to install the other inner rail...
Page 53: ...http www tyan com 53...
Page 56: ...http www tyan com 56...
Page 61: ...http www tyan com 61 3 2 Replacing the GPU Riser Cards 1 Unscrew to lift up the GPU Brackets...
Page 64: ...http www tyan com 64 NOTE...
Page 70: ...http www tyan com 70 Rear Fan...
Page 71: ...http www tyan com 71...
Page 84: ...http www tyan com 84 NOTE...
Page 87: ...http www tyan com 87 5 2 Block Diagram S8251...
Page 89: ...http www tyan com 89 5 3 Motherboard Mechanical Drawing...
Page 118: ...http www tyan com 118 6 3 2 1 Add an Attempt Read only NOTE Only LAN1 supports iSCSI function...
Page 132: ...http www tyan com 132 6 3 7 1 CPU 0 Information Read only...
Page 133: ...http www tyan com 133 6 3 7 2 CPU 1 Information Read only...
Page 149: ...http www tyan com 149 6 3 15 NVMe Configuration Read only...
Page 150: ...http www tyan com 150 6 3 16 SATA Configuration Read only...
Page 163: ...http www tyan com 163 6 4 1 1 Socket 0 Information Read only...
Page 164: ...http www tyan com 164 6 4 1 2 Socket 1 Information Read only...
Page 208: ...http www tyan com 208 NOTE...
Page 222: ...http www tyan com 222 BIOS Temp Sensor Name Explanation...
Page 232: ...http www tyan com 232 NOTE...