P4B533 rev 1.04

May be SO-8.
I think, that is LM358, but it's my fantasy. Tracing the pin of this IC (1 and 7) to near mosfets.

IMHO not AMS1085CD. This IC may be AMS1505CM, but it's also my fantasy. About ITE8708 and ASB100-A - on the photo (99 kb) I see IC with Asus label and ITE label.

On mobo there is both ASB100-A and ITE8708, but "expert" who tried to repair mobo before me put two ITE8708...With what purpose? I don`t know
I so that 4 legs on U34 are shortcuted, and trie with ic with marking 2030 that one suggested and mobo started (before that it was dead totaly).
Now I have post CO-C1-E0-something that I can`t see becouse it`s too fast - 05.
No BEEP-S.
Any suggestions about POST 05?
P.S. CPU, DDR, South and north Voltages normal.

ASB100-A and ITE8708 not compatible (pinout/functionality/etc).

May be bus termination regulator? RT9173 (example). Shortcuted pins - 5, 6, 7, 8?

I tried with 9173A, but with it DDR Voltage reduces to 1.25V( 0.6V termination) and POST is FF (but without CPU in MOBO there is voice from speaker saing something on chinese-probably no CPU?)

I changed ITE8708F-A to same one and POST 05 is no more problem:)
I found in WIKI that POST 05 is most common problem with SIO and I must thank to author of that text for good hint.
I must tell to all users that need information about U34. It`s 8 leg chip marked with 2030 (may be changed to chip marked with 4500 often found on Asus mobo-s)
Thanks` to all.

Aka CEM2030 and APM4500, for example.
I.e. n- and p-channel transistor in SO-8 package.
Jega, thank you for problem decision.