ASUS M3A78 REV 1.0 - NO VCORE
Another extra new MOBO without waranty...
Symptoms: No Vcore. RAM, South, North voltages -ok!
There is 4/3/2/1 - Phase PWM Controller RT8855
I tried to find it`s datasheet on richtek website but it dosn`t exist (on all other datasheet locations too).
Does anyone have that datasheet?
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Other theme with RT8855
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May be tracking schematic and compare with known PWM?
OK, I found another RT8855. I changed him and look:) Vcore exatly where I wanted him:)
Here what I found about RT8855 what could help another users:
Leg 32 - lower mosfets gate
Leg 33 - uper mosfets sorce
Leg 34 - Uper mosfets gate
VID0 | Leg 41
VID1 | Leg 42
VID2 | Leg 43
VID3 | Leg 44
VID4 | Leg 45
Thank you for tracking RT8855 schematic.
file-upload.net/download-1631570/DS8855-00.pdf.html
Datasheet for the RT8855
Tommie
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Big thanks
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