Seems that 2.3V on output of L6713A without

Seems that 2.3V on output of L6713A without CPU is normal. As I said several times on this forum, I have MSI TL-46 POST card
that can boot from external eprom. When I boot from it post codes run normaly (with 5200+ 65W, BIOSTAR CPU support list isn`t accurate).


So I tried to find what is wrong, and during measurment of smd components near MOBO eprom I touch, with probe, transistor collector q35 and MOBO bios start sending POST codes.
Every next touch to this q35 spot is behaving as reset (q35 is not connected to reset what so ever). I changed all smd (transistors, capacitors and resistors) near eprom and batery and lines to IT8706F-S (there is only few of them and I decide to do so) but, no effect. I tried to track it as I could, but I didn`t find any relations to eprom, chipset batery or "мултик".
Can it be related with broken chipset, since I have on screen artefacts when using integrated VGA (I heated chipset but artefacts remaind)?

P.S. Since I found a lot of MOBOs that have this cind of problem: Booting form external eprom is working but from MOBO eprom not. Is there any topic to read about this problem? What are referent spots to measure when u don`t have ability to boot from external eprom and how to be sure that this is problem and not something else?