asus FX804gd novideo after low side mosfet short on CPU phase

[ktmmotocross]

Hello.
I have this asus FX504gd that show novideo after low side mosfet short on CPU phase. after repair laptop start normally, fans ramping by temp, but without video. I have all voltages on coils except VCC GFX phases that must not be active.
I found that with original bios led for "aircraft mode?" is on, but with new bios this led is not on

any hint on this? how to check if CPU was damaged?

[RomaM65]

Re: asus FX804gd novideo after low side mosfet short on CPU phase

Is there an image on external sources? For example hdmi

Perhaps what is the supply resistance vcc gfx?

[ktmmotocross]

Re: asus FX804gd novideo after low side mosfet short on CPU phase

no internal or external video. no short

[ktmmotocross]

Re: asus FX804gd novideo after low side mosfet short on CPU phase

guys nobody knows what to check?

[mcplslg123]

Re: asus FX804gd novideo after low side mosfet short on CPU phase

Check if there is any pulse on VCC_GFX with dso only.

[ktmmotocross]

Re: asus FX804gd novideo after low side mosfet short on CPU phase

Check if there is any pulse on VCC_GFX with dso only.

what is DSO ?

[SMDFlea]

Re: asus FX804gd novideo after low side mosfet short on CPU phase

what is DSO ?

Digital Storage Oscilloscope

[ktmmotocross]

Re: asus FX804gd novideo after low side mosfet short on CPU phase

thats too hard Terminus Technicus for me



But i have no pulses on VCC GFX. CPU have only 1ohm which is too low for me. Coils and mosfets on CPU phases gets hot quickly so i think it is burned

[ktmmotocross]

Re: asus FX804gd novideo after low side mosfet short on CPU phase

guys how to flash SIO ITE FX504fd. i dont have this board in my Vertyanov Software.


Or have somebody Vertyanow SW with this board in it?