Laptop Asus F541UA(motherboard X541UVK Rev 2.0)spilled coffee wont boot

[kosmo]

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?

[piernov]

Re: Laptop Asus F541UA(motherboard X541UVK Rev 2.0)spilled coffee wont boot

Same voltage on +VCCCORE with and without RAM? Always stays at 0.98V?

[kosmo]

Re: Laptop Asus F541UA(motherboard X541UVK Rev 2.0)spilled coffee wont boot

Same voltage on +VCCCORE with and without RAM? Always stays at 0.98V?

yes exaclty the same 0.98v with 0.5500a consumption and without ram 0.98v 0.5000a consumption.i believe that is CPU problem

[kosmo]

Re: Laptop Asus F541UA(motherboard 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.