Technical Support Yoga 910-13IKB CYG50 NM-A901 Missing GFX_CORE

[Ipart]

Hi, Laptop boots without a picture. I checked the voltage, they all look ok, only GFX_CORE is missing. Resistance on PL25 and PL26 about 6 Ohm. Is ISL95857 can be damaged? How can I confirm it?

 

[Admin]

Hi, Laptop boots without a picture. I checked the voltage, they all look ok, only GFX_CORE is missing. Resistance on PL25 and PL26 about 6 Ohm. Is ISL95857 can be damaged? How can I confirm it?

Unfortunately, Hossein Asadolahi is not feeling well ( Because of Covid 19 ) and needs to rest. He will answer you after recovery. Thank you for your understanding

 

[Hosein Asadolahi]

Hi, Laptop boots without a picture. I checked the voltage, they all look ok, only GFX_CORE is missing. Resistance on PL25 and PL26 about 6 Ohm. Is ISL95857 can be damaged? How can I confirm it?

6 ohm resistance is ok . gfx core is last voltage that maybe not be necessary to generate in some case , so i suggest you reprogram bios with another bios bin file and clear me .

 

[Ipart]

Thank You for reply. I programmed the bios from https://dr-s.com/threads/lenovo-yoga-910-13ikb-glass-cyg50-nm-a901-bios.8682/#post-8685
but unfortunately there are no changes. What else could be causing the problem. What else can I measure?

 

[Hosein Asadolahi]

Thank You for reply. I programmed the bios from https://dr-s.com/threads/lenovo-yoga-910-13ikb-glass-cyg50-nm-a901-bios.8682/#post-8685
but unfortunately there are no changes. What else could be causing the problem. What else can I measure?

program bios and ec with this file and replay result plz