• ASUS FX504G motherboard DABKLGMB8D0 Rev: D dead

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#1 ASUS FX504G motherboard DABKLGMB8D0 Rev: D dead


by valieromarco 31 January 2025, 00:18
This laptop comes died
I found a shorted capacitor (line +VIN_VCC_CORE (see the picture.
After replacing laptop turns on and works fine.
Problem is that all the area in the picture as soon as laptop turns on is very hot.
It’s impossible touch the capacitors (very hot)
What can I do to fix this issue?
Resistance to ground on the capacitors line rise slowly up to 600k ohm
On boardviewer capacitors are 10 micro F.


Image

Re: ASUS FX504G motherboard DABKLGMB8D0 Rev: D dead


by Google Adsense [BOT] 31 January 2025, 00:18

#3 Re: ASUS FX504G motherboard DABKLGMB8D0 Rev: D dead


by valieromarco 31 January 2025, 15:53
I changed all capacitors but temperature is high.
Touching mosfet near coils are very hot.
Heatsink doesn’t cover that area and I think it’s a mistake.
I think the cause of capacitor shorted was overheating.
I’m afraid it's burned again.

#4 Re: ASUS FX504G motherboard DABKLGMB8D0 Rev: D dead


by matic 3 February 2025, 08:56
Measure the resistance and voltage to ground on coil PL2.

#5 Re: ASUS FX504G motherboard DABKLGMB8D0 Rev: D dead


by valieromarco 3 February 2025, 15:34
PL2= 3,5 ohm to ground
0,89V high side
0,84V low side

#6 Re: ASUS FX504G motherboard DABKLGMB8D0 Rev: D dead


by matic 4 February 2025, 11:23
Replace the driver chips PU4, PU5, PU6 (ISL95808HRZ).

#7 Re: ASUS FX504G motherboard DABKLGMB8D0 Rev: D dead


by valieromarco 16 February 2025, 18:48
After replacing driver nothing changed

#8 Re: ASUS FX504G motherboard DABKLGMB8D0 Rev: D dead


by matic 18 February 2025, 14:40
Try to replace the controller chip PU2 (ISL95855CHRTZ).
If nothing changes again, the CPU is damaged.

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