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P24, P25: USB Front Panel Header
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J92: PCI-X Bridge Bus Speed Override
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J109: FireWire (IEEE1394A) Pin Header
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J93: COM2 Header
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2) Press SW50 for 5 seconds
3) Power system and enter BIOS setup
Signal
Pin
Pin
VCC
1
Data -
3
5
Data +
GND
7
9
KEY
Open-(Default) Allows PCI Bridge B (Slots 4, 5 &
Devices) to operate at up to 100MHz
Closed- Force PCI Bridge B (Slots 4, 5 & Devices) to
operate at a maximum 66MHz
NOTE: This jumper affects integrated SCSI on the
same bus.
Signal
Pin
NC1
1
TPA +
3
GND
5
TPB +
7
+12V
9
GND
11
NC2
13
Use these pin definitions to connect a port to
COM2*
Pin1 COM2 Receive
Pin2 COM2 Ground
Pin3 COM2 Transfer
*TYAN does NOT provide cable for this header. It is
designed for OEM use only.
13
http://www.tyan.com
Signal
2
VCC
4
Data -
6
Data +
8
GND
10
GND
Pin
Signal
2
Key
4
TPA -
6
GND
8
TPB -
10
+12V
12
GND
14
Key
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