Asus P5E3 WS PRO User Manual page 47

2. PCI-X Speed setting (6-pin PCIX_SPEED1)
This jumper allows you to set the PCI-X slot's maximum frequency capability.
The jumper cap on pins 1-2: Auto detection
The jumper cap on pins 3-4: 133 MHz capability for the PCI-X slot.
The jumper cap on pins 5-6: 100 MHz capability for the PCI-X slot.
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P5E3 WS PRO
P5E3 WS Professional PCIX speed setting
ASUS P5E3 WS Professional
PCIX_SPEED1
Auto
(Default)
PIN1
133MHz
PIN1
100MHz
PIN1
2-21