Thank you gentleman for prompt answer. You were right

Thank you gentleman for prompt answer.
You were right about asignment for R20 pin. I was watching ICH4 datasheet instead ICH5:( sorry...
I have this problem with taking of footers only on ASUS mobos.On Gigabyte, MSI etc. I don`t have that problem.
Is temperature to high or to low that is producing that effect? Maybe heating time must be longer? Shorter?
I`m heating chips with lower temperature and rise it gently through time until chip start "swiming". Then I wait for moment and take him of as author of "Замена южных мостов ICH5" in WIKI suggested.