На скорую руку:

На скорую руку:

Цитата:
2.21.3.2 3.3 V/1.5 V Standby Power Sequencing Requirements

There is an integrated 1.5 V standby regulator that is used to power the resume well of the ICH5.
Due to the use of this internal regulator, there are no power sequencing requirements for associated
3.3 V/1.5 V (standby or core) rails of the ICH5.

Intel ® 82801EB ICH5 / 82801ER ICH5R Datasheet