thanks, jep the chipset is definitely dead, the sio is sending the correct voltages to start the chipset, all needed voltages are present too.

hi little update here. i think the sio chip is not defekt, i think the pch is the problem. i have the z390 and a z290 board. and if i messure the pch i have 29 ohms. the other board ist 82 ohm around the pch. (z290) i think the board is not repaireble with my skill level, because i dont know if im correct, i dont know the values oft he caps or resistors or the ohms for the pch. and i dont wanna buy a new pch, if i dont know if im right. if someone has any ideas please let me know.

hmmm........... the most repair guides that i can find are beyond a paywall to read them. i searched on google: intel power sequence motherboard repair guide. and found only some vids from indian with some bad pictures. like that: [url]https://www.youtube.com/watch?v=m0_aaMV45hY[/url]
but when it is correctly what he says i might be able to find the probem. i marked red, what i undertand coud might the problem or between it. green marked is the area that is a bit bent down. maybe the chipset hasnt a good connection anymore. i will test some voltages and try to reflow the chipset.
...

i will post a part of the service manual. but its only in german. google tanslator will help

wait `what? there is arepair guide for that board? can i ask you where i can find that guide?

hi, thanks for your reply.
jup 3.3 volts are present on the power button pin. and 5 volt at the usb port and the usb connectors. my thought: maybe there is a problem with a bad cap, mosfet or resistor at the chipset.

hi,
i did some research, in my simens service programm, and found: e300 1. wrong modul kombination {screen <--> control pcb} 2. wrong variant code.
what i read you can programm or change the code. You need access to the testing program in the device. Then the type plate is still required. Then a number must be converted into a hexadecimal number and then changed on the electronics. then the device should work again. Unfortunately, there is no PC access (i-service) on the device. This means that if this doesn't work, one or both electronics may need to be replaced. because the...

i try my best to write in english

hi i have a msi mpg z390m gaming edge ac mb. that wont turn on when i short the 2 pins on the front connectror.
im new in electrionic repair. and i hope that someone will share a bit knowledge, thoughts or ideas with me and others, to repair that damm thing ;D
1. thought psu problem. nope psu is good. i even bought a psu tester to be save.
2. thought a short somewhere that the psu goes in short save mode. nope... no short to measure with my multimeter to ground. psu and mainboard starts with all cabels plugget in, when i bridge green and black on the 24 pin.
cpu isnt...

hi, im Max
i am new in electronic repair and troubleshooting. i try to repair some gpus and mainboards in my free time and i hope i can find here some good tips for repair stuff.
I repair all brands of household appliances professionally. e.g. Siemens, Miele, Bosch, Gaggenau, Viva, Blaupunkt etc.
If anyone has any questions about household appliances. I'd ​be happy to answer that.
There is only a limit on home appliances, anything sold in the EU.