Lenovo g40-45 looping on cold start

[julianmustofa]

Hi all. Having problem with bootlooping.
The laptop always bootlooping on cold start. Sometimes it looping 5x before it post and often looping for really long time to get to the post.
Sleep was working fine.
I check every voltage (cpu,memory,dgpu etc) and all present. I really dont know whats going on with this laptop.
I checked all hardware when laptop is turning on. And seems all working fine include the dgpu.
Any advice? Thanks

[mcplslg123]

Re: Lenovo g40-45 looping on cold start

Flash clean me bios

[julianmustofa]

Re: Lenovo g40-45 looping on cold start

i flashed bios chip
bootloop problem solved now
but i discovering that discrete gpu chip have memory errors after flashed new bios
this may the reason of bootlooping