引脚13(U8的,PLTRST#)状态上电后3,3五。
CPU复位没有一个没有boardview测试蓬。
Current after power is 0.34A with and without RAM module.
Pin 13 (U8, PLTRST#) status is 3,3V after power on.
CPU reset do not have a test pont without boardview.
After I read your discription of the symptoms,The power sequence steps had compeleted the PLTRST#, next step is CPURST#(H_RST#)-->ADS#-->NB-->SB-->BIOS,READ RAM data,
you had checked Pin 13 (U8, PLTRST#) status is 3,3V after power on,
now you need to check CPURST# or bios CS#,you can find the fault point.
I guess the problem should be locked in NB chip or bios programs.