Hi friends,First the (u58) lan ic was hot so i removed it from board then standby current sink modified and it sinks about 0.01A standby ,ALL CURRENT SINK when system switchs on is constantly 0.4A without any changes. And the lpc port has no activity signals(tested with oscilloscope) so i changed pch (bd82hm55) but system has no change,the bios file has updated too.
An important problem was this matter that when i removed the bios ic from the board ,system can switchs and turns on(i think sys could not switchs when bios ic is not on the board,Am i right??).

[mod="RsM"]Platform not correct - LA-5891 or La-5893 may be?[/mod]

Now i know some laptops can switch on without bios ic on the board ,but what is the problem with this inactive lpc bus?? waiting for any help......

here is board pic.
waiting for any help.

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[size=85][color=#DA573B]Posted after 42 minutes 20 seconds:[/color][/size]
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Hi,i am really confused with this inactive systems,now i have another same board with inactive lpc port.my question is this,which
factors do effect on lpc bus to active?what is my solution to activate this bus between i/o and pch?