ASUS UX303LN
I change ram voltage chip PU8400 because
there was a short on EC_GPE0 -> SUSB_EC#
I change EC also and reprogramm bios. After that (I don't know if
this problem existed even before the repair)
motherboard start only with
connected adapter and charge battery , if I remove it after power on
the system remain on.
Only with battery the system don't start;
on PU8100 (this chip provide voltage to charge battery and
+3V and 5V always voltage)
there are those voltage on this chip with battery only
pin 3 -> VREG3 -> 3.3V
9 -> VBST2 -> 2.5V
12 -> VIN -> 12.5V
19 -> VBST1 -> 2.5V
the EC is not powered because the PS_ON signal is 0V
It's possible there is a bios issue ?
thanks
I change ram voltage chip PU8400 because
there was a short on EC_GPE0 -> SUSB_EC#
I change EC also and reprogramm bios. After that (I don't know if
this problem existed even before the repair)
motherboard start only with
connected adapter and charge battery , if I remove it after power on
the system remain on.
Only with battery the system don't start;
on PU8100 (this chip provide voltage to charge battery and
+3V and 5V always voltage)
there are those voltage on this chip with battery only
pin 3 -> VREG3 -> 3.3V
9 -> VBST2 -> 2.5V
12 -> VIN -> 12.5V
19 -> VBST1 -> 2.5V
the EC is not powered because the PS_ON signal is 0V
It's possible there is a bios issue ?
thanks
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