dell 3542 IGPU disable

[KABY]

hello I'm looking for some answerer about IGPU
i have dell 3542 with IGPU AND DEDECATE one
the mane IGPU its not working properly every time i boot up i get some artifacts and laptop turn of and reboot again some time it boot normally for 1 min and the same scenario again artifacts and shutdown
my question!
is it possible to disable IGPU and run laptop with DGPU
or there is any possibility to disable it via bios bin or take off some capacitor or coil like DGPU to disable it completely
thanks for your accept and answer
bios bin added and schematic board view

[KABY]

Re: IGPU disable

attachment's

MOD Edit , link to schematic - https://www.badcaps.net/forum/showthread.php?t=52924

Reminder: rules and organization of this section - https://www.badcaps.net/forum/showthread.php?t=117483
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[mcplslg123]

Re: dell 3542 IGPU disable

You want to disable iGPU or DGPU?

[KABY]

Re: dell 3542 IGPU disable

You want to disable iGPU or DGPU?

The igpu

[mcplslg123]

Re: dell 3542 IGPU disable

With a discrete graphics chip onboard,display comes via DGPU and iGPU is not involved much. Are you sure its iGPU thats troubling you or the reverse is true?

[KABY]

Re: dell 3542 IGPU disable

With a discrete graphics chip onboard,display comes via DGPU and iGPU is not involved much. Are you sure its iGPU thats troubling you or the reverse is true?

I removed the vcore power gpu and still I get artifacte
I know it's 1/100 that igpu get defected
Maybe it's Cpu problem because sometimes screen goes black and shutdown directly

[mcplslg123]

Re: dell 3542 IGPU disable

iGPU cant be disabled but i think problem may not be related to igpu.Have worked on hundreds of these boards and never faced this issue.The most common fault on this board is PSL /SIO/RTC

[KABY]

Re: dell 3542 IGPU disable

iGPU cant be disabled but i think problem may not be related to igpu.Have worked on hundreds of these boards and never faced this issue.The most common fault on this board is PSL /SIO/RTC

I will check and I will give you results later
Thanks

[KABY]

I founded the problem
it's triode near cmos recive 3v and 6v phase