dv6 3120us blank screen f11 f12 red led

[hienton2]

My dv6 3120us ,turn on, has blank screen f11 f12 red led, cap lock sometime on somtimes
not. no blink,.

Anybody help Please why f11 is on ? I doubt the gpu is bad?

Good day Thanks

[piernov]

Re: dv6 3120us blank screen f11 f12 red led

RS880M northbridge, can go bad. Try to mildy heat heat for a couple of minutes at 200°C to see if it comes back to life. Make sure you don't overheat it, and this will only be a very temporary fix, the northbridge will need to be replaced.
Also I assume you tried with known good ram sticks and cleaned the RAM slots first.

[hienton2]

Re: dv6 3120us blank screen f11 f12 red led

Thank you Piernov

I will reflow northbridge and clean ram slot.

MY question Did my laptop complete booting ? Or on half way ? Only the picture is the problem?