Первое ЕСЛИ:) мать GA-IE533 rev.2.0, тогда второе ЕСЛИ

Первое ЕСЛИ:) мать GA-IE533 rev.2.0, тогда второе ЕСЛИ позиционное обозначение U25, то это RT9173(1.5A/3A Bus Termination Regulator).
Сразу
о даташите : pdf1.alldatasheet.com/datasheet-pdf/view/155873/ETC/RT9173.html

о замене:
CM8563- 1.5A LINEAR BUS TERMINATION REGULATOR ETC
W83310S- R-Bus Termination Regulator Winbond
CM3109- 2A Sink/Source Regulator for Front Side Bus and DDR Memory Bus Termination California Micro Devices Corp
MIC5162- Dual Regulator Controller For High-Speed Bus Termination
Micrel Semiconductor
ML6554 - 3A Bus Termination Regulator Micro Linear Corporation
CM3106 - 2 Amp Source/ Sink Bus Termination Regulator California Micro Devices Corp
HPL5331- 3A Bus Termination Regulator ETC
ML6553 - Bus Termination Regulator Fairchild Semiconductor
FAN1654 - 1.5A LDO DDR Bus Termination Regulator Fairchild Semiconductor
ML6554 - 3A Bus Termination Regulator Fairchild Semiconductor