Serial Port Internal Header (J23); Pci-X Speed Select Jumper (J24) - TYAN THUNDER K8QS Manual

2.08 – Serial Port Internal Header (J23)
2.09 – PCI-X Bridge B (PCI-X 1 and PCI-X 2)PCI-X Speed Select Jumper (J24)
Signal
Description
DCD
(Data Carrier
Detect)
RX (Receive-
Data)
TX (Transfer-
Data)
DTR (Data-
Terminal-
Ready)
GND (Ground)
OPEN (Default)
Allows PCI-X Bridge B to operate at up
to 133MHz (For use with one PCI-X 133
device)
Tyan recommends using PCI-X Slot 1
for 133Mhz support
CLOSED
Forces PCI 1 and PCI 2 operate at
maximum PCI-X 100MHz
15
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Pin Pin Signal
# # Description
DSR (Data-
1 2
Set-Ready)
RTS
3 4 (Request-
to-Send)
CTS
(Clear-to-
5 6
Send)
RI (Ring-
7 8 Indicator)
9 10
NC