Lenovo Yoga2 13 (Boot Problem )

[kokono]

Have a nice time
i receive this Laptop by a defect usb port but laptop can start to bios . i change defect usb port but it dont can boot of USB or HDD .when i force it to boot of a usb windows 10, Reset quickly and again this process. Also HDD
i have DDR3 onboard in motherboard, anyone have experience with this?
PCH onboard in cpu ist problem or Ram ?

[mcplslg123]

Re: Lenovo Yoga2 13 (Boot Problem )

What is the resistance on D+ and D- on usb port??

[kokono]

Re: Lenovo Yoga2 13 (Boot Problem )

What is the resistance on D+ and D- on usb port??

About 1M ohm

[Vesko356]

Re: Lenovo Yoga2 13 (Boot Problem )

Disconnect the ribbon cable from the main board to the small (usb, audio, card reader) board, and try again. Also check 5V on the main board usb port.