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MB893 User’s Manual 15
SYS_FAN1: System Fan Power Connector
Pin # Signal Name
1 Ground
2 +12V
3 Rotation detection
CN1: Front Side Bridge Board to ID370
Signal Name Pin # Pin # Signal Name
PWR-SW 1 2 5VSB
Reset-SW 3 4 Ground
Speak 5 6 VCC
VCC 7 8 VCC
Ground 9 10 PULL-UP
HDD LED 11 12 PULL-UP
By-pass LED 13 14 PULL-UP
Ground 15 16 Ground
Ground 17 18 Ground
GPO0 19 20 GPI0
GPO1 21 22 GPI1
GPO2 23 24 GPI2
GPO3 25 26 GPI3
GPO4 27 28 GPI4
GPO5 29 30 GPI5
GPO6 31 32 GPI6
GPO7 33 34 GPI7
VCC 35 36 VCC
GPIO32 37 38 GPI6
GPIO33 39 40 GPI7
GPIO34 41 42 GPI12
VCC3 43 44 VCC3
CN2/3/5/6/7/10: Gigabit LAN RJ45 Connectors
CN2/3/5/6/7/10 are the Gigabit LAN RJ45 connectors on MB893.
CN2/3: Intel 82541 Gigabit controllers (PCI-32)
CN5/6/7/10: Marvell 8053 Gigabit controllers (PCI Express x 1)
CN7/10: Support hardware by-pass