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ideapad c340-15IWL random Blackscreen
Hello,
I am trying to fix a ideapad c340-15IWL with random blackscreen crashes, after witch the system is completly unresponsive, even on an external monitor. The blackscreens accur completly random no matter the load put on the system. You can sometimes run cinebench succesfully only to have the system blackscreen five minutes later while doing nothing. I have already tried to resolder several chips and have resoldered all contacts of the dimm slot. I have also tried different ram, wifi-card and SSDs, with the same effect. I had another lenovo with a similar issue, which was resolved after...
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Ok thank you, but wouldn't the system still Boot without an igpu over HDMI(HDMI is connected to the dgpu)? That way it would at least still bei usable as a Desktop.
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Nitro AN515-55 not booting
Hi,
i am currently trying to fix an ACER Nitro AN515-55. Originally the 19V was shorted by the VCCGT Powerstage. After removing it the short was gone. I tried replacing the mosfet and also booting the system without it and a Monitor connected to HDMI. In both cases the system lights up, cpu, gpu and pch get warm but there is nothing on the screen. Is it possible that the short took out the igpu and the cpu at the same time or is the system just unable to boot without an functioning igpu. The system also didn't boot with a functioning mosfet for the igpu rail. Resistance on VCCGT is 4 ohm,...
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