DV6-3000 (LX89) OVP on 18.5V

R EZ A

hi guys
this motherboard is new
everything works fine if Input voltage be blow 18.8V
but if voltage goes over 18.8V looks like OVP actived and PQ35 goes off

i flash bios it works fine 2-3 times and after that problem is back

anyone has any idea about that?
and datasheet for OZ8681
thanks

montekristo

Try remove pr32.
When OK, what on gate pq35?

R EZ A

acin is same with any voltage
i replace PD8 and its working for now
lets see what will happen next

R EZ A

nope
problem is still there
sometimes happened ,sometimes not
in 18.5V AD_AIR is 2.5V and in 19V AD_AIR drop to 0.5V

montekristo

Remove pc134
what on gate pq35?

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DV6-3000 (LX89) OVP on 18.5V

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