
http://www.tyan.com
96
J19: Micro SD Card Connector
Pin
Signal
1
DAT2
2
CD/DAT3
3
CMD
4
VCC
5
CLK
6
VSS
7
DAT0
8
DAT1
J37: HDT Header
Signal
Pin
Pin
Signal
P1V8_AUX
1
2
TCK
GND
3
4
TMS
GND
5
6
TDI
GND
7
8
TDO
TRST_N
9
10
PEROK
NC
11
12
RESET_N
NC
13
14
NC
NC
15
16
DRREQ_N
GND
17
18
NC
P1V8_AUX
19
20
NC
J33/J34: Debug Header for CPU0/CPU1
Signal
Pin
Pin
Signal
BP0
1
2
BPG5
BP1
3
4
GND
BP2
5
6
GND
BP3
7
8
BP4
J68: 4-pin PWR to BP Connector
Pin
Signal
1
P3V3_AUX
2
P3V3_AUX
3
GND
4
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...