описание линии PLTRST# Platform Reset: The Intel® ICH7

описание линии PLTRST#

Platform Reset: The Intel® ICH7 asserts PLTRST# to reset devices
on the platform (e.g., SIO, FWH, LAN, (G)MCH, IDE, TPM, etc.). The
ICH7 asserts PLTRST# during power-up and when S/W initiates a hard
reset sequence through the Reset Control register (I/O Register
CF9h). The ICH7 drives PLTRST# inactive a minimum of 1 ms after
both PWROK and VRMPWRGD are driven high. The ICH7 drives
PLTRST# active a minimum of 1 ms when initiated through the Reset
Control register (I/O Register CF9h).
NOTE: PLTRST# is in the VccSus3_3 well.
ну если не правильно думаю уж пнуть в нужное русло можно.