ASUS cant power on x453ma rev 2.0

[kalilinux25]

Hi I have a problem with this board it has a led indicator power buton has 3v I have 5v reading on PJ8100 and 3V on pl8801 I dont have any scheamtic but I have a board view but I dont know where to start to troubleshoot first

[dj_ricoh]

Re: ASUS cant power on x453ma rev 2.0

Look for coils and see how much voltage you get after start.

[piernov]

Re: ASUS cant power on x453ma rev 2.0

If you have Repair Guide it often contains a rough power sequence, it helps to know what state the board is in.
Otherwise indeed check which power rails are there and which ones are missing, check for short to ground on the main power rails, and check the power state signals too (SLP_…#, SUS…, RSMRST#, stuff like that).
If you have ITE EC programmer, you can randomly try to replace and flash EC.

[kalilinux25]

Re: ASUS cant power on x453ma rev 2.0

Look for coils and see how much voltage you get after start.

I plug the unit to a powersupply , I press the power button ppower supply unit dont get amps only stable at 4 milliamps

[karlox]

Re: ASUS cant power on x453ma rev 2.0

Hi I have a problem with this board it has a led indicator power buton has 3v I have 5v reading on PJ8100 and 3V on pl8801 I dont have any scheamtic but I have a board view but I dont know where to start to troubleshoot first

I had a very similar problem, a team did not turn on overnight. The Bios had been corrupted. The solution, 'reprogram it.'

[karlox]

Re: ASUS cant power on x453ma rev 2.0

https://www.badcaps.net/forum/attach...8&d=1446547331

[kalilinux25]

Re: ASUS cant power on x453ma rev 2.0

https://www.badcaps.net/forum/attach...8&d=1446547331

sir i tried your bios but nothing happens

[mcplslg123]

Re: ASUS cant power on x453ma rev 2.0

check LID & RSMRST on kbc present??

[piernov]

Re: ASUS cant power on x453ma rev 2.0

EC firmware is in the internal ROM of the EC itself that's why I suggested to replace and reprogram it. Could be something else entirely, but that's a "shortcut" you can take.

[kalilinux25]

Re: ASUS cant power on x453ma rev 2.0

check LID & RSMRST on kbc present??

RSMRSThas 3.3v

[mcplslg123]

Re: ASUS cant power on x453ma rev 2.0

RSMRSThas 3.3v

IF you have rsmrst then logically pch should enable slp s3/s4 signals. Check on kbc pins.

[kalilinux25]

Re: ASUS cant power on x453ma rev 2.0

if you have rsmrst then logically pch should enable slp s3/s4 signals. Check on kbc pins.

where can i find it sir idont have any scheamtic