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Asus F541UA (X541UVK rev 2.0) spilled coffee wont boot
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kosmo555 [ 13 окт 2020, 04:30 ]
Заголовок сообщения:  Asus F541UA (X541UVK rev 2.0) spilled coffee wont boot
after a lot of ic replacements and good cleaning i have this results:

18.70 AC_BAT_SYS
5.00 3.00 +5VAO +3VAO
3.20 +3VA_EC
3.20 EC_RST#
3.25 3.25 +3VADSW_ON +5VSUS_ON
3.23 +3VA_DSW_PWRGD
3.24 DPWROK_EC
3.34 PM_SLP_SUS#
3.25 VSUS_ON
3.25 3SUS_PWRGD
3.34 SUSWARN
2.94 PM_RSMRST#_PCH
3.04 ME_PRESENT_PCH
3.25 PCH_SUSACK#
3.22 PM_PWRBTN# PWR_SW#
3.34 PM_SUSC#
3.34 PM_SUSB#
3.24 SUSC_EC# 1.2V_ON
3.24 SUSB_EC#
3.31 ALL_SYS_PWRGD
3.30 IMPVP8_PWRGD
3.25 PM_PWROK_PCH
3.24 PM_SYSPWROK_PCH
1.00 H_CPUPWRGD_R
3.34 PLT_RST#
12.51 P_CHG_LX_30
1.20 +1.2VO
5.05 +5VSUSO
3.34 +3VADSWO
0.98 +VCCCORE
0.00 +VCCGT
1.00 +1.0VSUSO
0.00 +NVDD
0.00 +FBVDDQO

with his original bios dump i had white light on power led and orange light on charger led all time, i disabled onboard ram and still the same, i changed bios dump and with version 308 i had white light on power led and charge led blinking white colour once. with version 307 (i have only black screen without backlight or anything else) without ram on slot i have power led white and charger led blinking 2 times white(it recognize that ram is missing). when i install ram on slot i have white led on power led and orange on charge led. i also replaced ncp cpu ic. any ideas?
Евгений18 [ 13 окт 2020, 13:35 ]
Заголовок сообщения:  Re: Asus F541UA (X541UVK rev 2.0) spilled coffee wont boot
How much does it consume from LPS? Before pressing the button and after.
kosmo555 [ 13 окт 2020, 15:40 ]
Заголовок сообщения:  Re: Asus F541UA (X541UVK rev 2.0) spilled coffee wont boot
It consumes aproximately 0.400A - 0.600A ,it also turns on automatically keyboard is dead and i cant use pbutton,i can use the jumper if you want
kosmo555 [ 23 апр 2021, 17:00 ]
Заголовок сообщения:  Re: Asus F541UA (X541UVK rev 2.0) spilled coffee wont boot
a customer bring me a same laptop and the problem was a mosfet next to the dcjack, so i compared with my old motherboard and the only difference is that my motherboard doesnt do ec reset, the working motherboard also doesnt open vccgt coil but it works ok.

клиент принес мне тот же ноутбук, и проблема была в mosfet рядом с dcjack, поэтому я сравнил со своей старой материнской платой, и единственная разница в том, что моя материнская плата не выполняет сброс ec, рабочая материнская плата также не открывает катушку vccgt, но работает нормально .
Dag_ZhiEst' [ 23 апр 2021, 17:28 ]
Заголовок сообщения:  Re: Asus F541UA (X541UVK rev 2.0) spilled coffee wont boot
kosmo555 писал(а):
3.20 EC_RST#

kosmo555 писал(а):
my motherboard doesnt do ec reset

So, does, or doesn't? Whatever, if EC don't pull down own reset, your board will not turn on. Look at POST codes.
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