Intel 855PM Design Manual page 313

Platform Design Checklist
R
ICH4-M Power Management Interface – Resistor Recommendations
Pin Name System Series Notes
Damping
Pull up/ Pull
down
sensors are used.
If THRM# Is NOT Used:
If this signal is not connected to a driver, then it
is required to be terminated with a 8.2 k pull
up to Vcc3_3.
SYS_RESET# Pull up to 100 k (if Implementation of this signal is optional. When
VccSus3_3 signal is not this signal is asserted, system will be put into
used) reset.
If SYS_RESET# Is Used:
A weak pull up is required to prevent the signal
from floating.
If SYS_RESET# Is NOT Used:
Pull up to VccSus3_3 through a 100 k
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Intel 855PM Chipset Platform Design Guide