7. Special Pin Routings
PSB - Power Supply Bypass
The PSB will be internally routed to PSON pin.
IT8673F
VCCH
System
On-Off
Button
Intel
PIIX4
PWBTN#
SUSC#
PWRON#
(93)
IT8673F
PANSWH# PSON(90)
(94)
VCCH
ATX
Power Supply
PSON#
Figure 7-1. IT8673F Special Applications Circuitry for Intel PIIX4
11